Kenwood - TH-K2AT K2E K2ET Service manual · 2018-02-13 · TH-K2AT/K2E/K2ET 3 DISASSEMBLY FOR REPAIR Soldering the antenna terminal 1. With the shield cover removed from the antenna

144MHz FM TRANSCEIVER

TH-K2AT/K2E/K2ET© 2003-8 PRINTED IN JAPANB51-8658-00 (S) 836

SERVICE MANUAL

DISASSEMBLY FOR REPAIR ................................... 2

CIRCUIT DESCRIPTION ............................................ 6

SEMICONDUCTOR DATA ...................................... 14

COMPONENTS DESCRIPTION .............................. 15

PARTS LIST ............................................................. 17

EXPLODED VIEW.................................................... 23

PACKING ................................................................. 25

ADJUSTMENT ........................................................ 27

TERMINAL FUNCTION ........................................... 43

PC BOARD

TX-RX UNIT (X57-674X-XX) (A/3) ................... 44

TX-RX UNIT (X57-674X-XX) (B/3),(C/3) .......... 48

CONTENTSSCHEMATIC DIAGRAM.......................................... 50

LEVEL DIAGRAM .................................................... 55

BLOCK DIAGRAM ................................................... 56

BC-21 (WALL CHARGER) ....................................... 58

PB-43N (Ni-MH BATTERY PACK) .......................... 58

BT-14 (BATTERY CASE) ......................................... 59

PG-4Y (PROGRAMMING INTERFACE CABLE) ..... 59

MCP-1A (MEMORY CONTROL PROGRAM) ......... 59

SPECIFICATIONS ................................. BACK COVER

Knob (ENC)(K29-5159-03)

Knob (VOL)(K29-5150-03)

Cabinet assy(16key)(A02-3819-23)

Helical Antenna(T90-1018-25)

Key top (16key)(K29-9272-02)

Front glass(B10-2746-03)Knob

(PTT/LAMP/MON)(K29-9274-03)

Knob (ENC)(K29-5159-03)

Knob (VOL)(K29-5150-03)

Cabinet assy(4key)(A02-3818-23)

Helical Antenna(T90-1018-25)

Key top (4key)(K29-9276-02)

Front glass(B10-2746-03)Knob

(PTT/LAMP/MON)(K29-9274-03)

TH-K2AT/K2ET TH-K2E

Cap(SP/MIC/DC IN)(B09-0675-03)

Cap(SP/MIC/DC IN)(B09-0675-03)

GMC

Downloaded

TH-K2AT/K2E/K2ET

2

DISASSEMBLY FOR REPAIR

How to remove the case assembly from the

chassis1. Remove two screws (z) holding the chassis.2. Pull out two knobs (x) and remove two round nuts (c).3. Pull out the SP and MIC parts of the cap from jacks (v).4. Turn the unit over with the bottom of the chassis facing

upwards, and remove the chassis (n) from the caseassembly (b).

5. Remove the speaker lead (m) from the connector (CN2) ofthe TX-RX PC board (TX-RX unit A/3).

How to remove the PC board

Numeric key PC board (TX-RX unit B/3)

1. Remove three screws (,) on the numeric key PC board.2. Lift the numeric key PC board and remove it from the

connector (CN9) of the TX-RX PC board (.).

PTT PC board (TX-RX unit C/3)

3. Remove one screw on the PTT PC board (/).4. Pull the PTT PC board to the left and remove it from the

connector (CN6) of the TX-RX PC board (TX-RX unit A/3)(Ω).

TX-RX PC board (TX-RX unit A/3)

5. Remove the SP/MIC jack cover (≈).6. Remove two screws (ç) holding the shield

cover (antenna terminal section).7. Remove two screws (√) holding the shield

cover (final amplifier section).8. Remove eight screws (∫) on the TX-RX PC

board.9. Absorb solder from the antenna terminal (~)

with a solder absorber.Note: Do not melt the shadow plate (µ) when

moving the tip of the solder absorber closeto the antenna terminal.

10. Remove the TX-RX PC board from the chassis, then removethe encoder volume FPC (≤) from the flat cable connectorof the TX-RX PC board.

CN2

CN9

CN6

x

x

c

c

v

mb

,

,

.

ç

√

µ ∫∫

∫

∫∫Ω

/

∫

≈

~

≤

n

z

TX-RX unit (B/3)

TX-RX unit (C/3)

TX-RX unit (A/3)

TH-K2AT/K2E/K2ET

3


Soldering the antenna terminal

1. With the shield cover removed from the antenna terminalsection, install two screws on the PC board and bring thePC board into contact with the chassis (z).

2. Solder the antenna terminal with a soldering iron (x).

3. Remove the two screws installed in step 1 above, and installthe two screws again on the PC board together with theshield cover (c).

Replacing the final FET (Q12)

1. Remove the two screws holding the shield cover of thefinal FET section (z).

2. Remove solder from the shield cover completely with asolder absorber. (E and E3 types only)

3. Remove the shield cover (x).

z

x

c

z

x

4. Apply the tips of soldering irons to all the four pins of the finalFET at the same time (c), heat them sufficiently, and removethe final FET (v). (Two persons should be required to do this.)

5. Remove all PC boards from the chassis.6. Confirm that there is no space between the radiation plate

installed on the foil side of the TX-RX PC board (TX-RX unitA/3) and the PC board (b). If there is any space betweenthe radiation plate and PC board, eliminate it by applyingthe tip of the soldering iron to the radiation plate.

7. Apply the tip of the soldering iron to the installation side of theradiation plate of the TX-RX PC board, put a little amount ofsolder to the radiation plate that is seen through a square holein the final FET installation section and melt the solder (n).

8. When the solder in step 7 is melted, place the final FET onthe PC board by aligning it with the silk of the final FETinstallation section of the PC board (m).

9. Release the soldering iron and confirm that the final FETand radiation plate have been soldered.

10. Solder the four pins of the final FET with the soldering iron.11. Install all the PC boards.12. Reinstall the shield cover removed in step 3 above in its

original position and install two screws.13. Solder the shield cover to the PC board. (E and E3 types

only)14. Install the chassis on the case assembly and assemble them.15. Readjust transmission power.Note: Since the FET is sensitive to static electricity, always

wear a grounding band. Use a highly insulated ceramicheater solder iron.

Radiation plate

TX-RX PC board

b

cv

m

n

TH-K2AT/K2E/K2ET

4


Special care and attention required for assembly1. Gluing to the key top (MIC element section)

You must also glue on the speaker storage area and heapthe glue up until wealthy glued on the speaker storage areaand the key top for waterproofing the MIC element side ofthe key top. (Fig. 1)

Fig. 1

2. Bending the LCD hardware fixture (J21-8456-03) tabs

(1) Insert the tabs of the LCD hardware fixture into four holesin the LCD installing position of the TX-RX PCB (TX-RX unitA/3). (Fig. 2)

Heap the glue up until wealthy glued on the speakerstorage area and the key top (MIC element section).

Fig. 2

(2)By pressing the LCD hardware fixture from the componentside of the TX-RX PCB, you must bent all 4 tabs of the LCDhardware fixture being visible from the foil side until thebases of each tabs are folded at least 45 degrees (Fig. 3). Ifthe bending angle of the tabs of the LCD hardware fixtureis less than 45 degrees, a display error may occur.

Bending position

NG

NG

Min 45degrees

3. PTT PCB (TX-RX unit C/3) installation procedure

Installing the PTT PCB on the TX-RX PCB and chassis areas follows:(1) Insert the PTT PCB connector (CN7) into the TX-RX PCB

connector (CN6) lightly.(2)Push three parts of the PTT PCB to contact tightly with the

chassis. There may be a small gap between the connectors.(Fig. 4)

Note: A double-side adhesive tape (J99-0376-04) is usedbehind the PTT switch. When reassembling the PTTPCB to the chassis, press the PTT PCB (under the PTTswitch) so that the tape hold the PCB and chassissecurely.

Fig. 3

CN6Chassis

PTT switch

PTT PCB (C/3)

OK A bitclearance

Noclearance

NGCN6

CN7

CN7

ChassisPTT PCB (C/3)

PTT switch

Fig. 4

Push three parts of the PTT PCBto contact tightly with the chassis.

(3)Tighten one screw in the PTT PCB.

TH-K2AT/K2E/K2ET

5


4. Packing (G53-1572-02) TX/BUSY lamp installation

procedure

(1)To assure waterproofing, install the packing in the chassisgroove as shown in Fig. 5. (z)

(2) Install the packing TX/BUSY lamp section on the chassis.(x)

z

x

OKPacking

NGPacking

Chassis

Chassis

5. Packing (G53-1572-02) bottom installation procedure

(1)Before installing the numeric key PCB (TX-RX unit B/3) onthe chassis, push three parts of the packing to contact tightlywith the chassis as shown in Fig. 6. If the packing is not incontact with the chassis, there may be a gap between thetransceiver bottom case assembly and the battery, andwater may enter through the gap.

Fig. 5

OK NG

Push three parts of the packing tocontact tightly with the chassis.

Clearance NG

Fig. 6

6. Cautions for installing the chassis on the case assembly

(1)Verify that the packing (G53-1572-02) TX/BUSY lamp sectionis has been past through the hole in the illumination guidesection on the top of the case assembly. (Fig. 7)

LAMP

LOW

PTT

Fig. 7

(2)Align the speaker lead as shown fig.8. Do not place theleads over the key top section, LCD section or SP/MIC/DCIN cap section.

Do not fix this part of thekey top to the rib of thecase assembly.

7. Cautions for installing the key top on the case assembly

(1) Install the key top keypad section and the power switchsection on the rib of the case assembly.

(2)Do not fix the part between the key top keypad section andthe power switch section to the rib of the case assembly,but install it as shown in Fig. 8.

The packing TX/BUSY lamp section is hasbeen past through the hole in the illuminationguide section on the top of the case assembly.

Fig. 8

TH-K2AT/K2E/K2ET

6

CIRCUIT DESCRIPTION

Frequency Configuration

The frequency configuration is shown in Figure 1 andTable 1.

Fig. 1 Frequency configuration

174.850~212.845MHz(K,K2,M,M2)182.850~184.845MHz(E,E3)

144.000~147.995MHz(K,K2)136.000~173.995MHz(M,M2)144.000~145.995MHz(E,E3)

136.000~173.995MHz(K,K2,M,M2)144.000~145.995MHz(E,E3)144.000~147.995MHz(K,K2)136.000~173.995MHz(M,M2)144.000~145.995MHz(E,E3)

RX :

TX :

ANTSW

MCF

38.85MHz38.4MHz

12.8MHz

450kHzCF

MIX, IF,DET

AFAMP

SP

PREDRIVE

FINALTCXO

DRIVE

Triplerx 3

RFAMP

1st MIX

PLLVCO

MICAMP

MIC

ANT

Receiver System

Front End

The received signal from the antenna passes through a low-pass filter and then through a transmission/reception switchingcircuit (antenna switch) and enters the band-pass filter (L40,L41, L38).

The signal passing through the band-pass filter (L40, L41,L38) is amplified by with an RF amplifier (Q17), passes througha band-pass filter (L32, L35) and enters the first mixer (Q16).

These band-pass filters are tuned to a desired frequencyby varicaps (D21, D20, D19, D18).

Double super heterodyneReception method 1st IF Frequency 38.85MHz (Upper)

2nd IF Frequency 450kHz (Lower)Transmission method VCO direct oscillation amplificationModulation Variable reactance phase modulation

Table 1 Basic configuration

ANTSW

SP

LPF

VCO

BPF/APCMPUIC8

PLL

IF AMP,DET

Triplerx 3

TCXO

BPFL41,L40,L38

BPFL32,L35

MIXERQ16

1st Local OSC(PLL)

RF AMPQ17

ANTMCFXF1

IF AMPQ24

FM ICIC3

Q23

2nd Local OSC

X1

AF AMPIC6

5R5R

D20D21

LV

6Tuning voltage

D18

38.85MHz

12.8MHz

D19

A tuning voltage corresponding to the desired signal isapplied to each varicap through the BPF/APC terminal (pin 6)of the MPU (IC8) to tune to the receive frequency.

First Mixer

The received signal passing through the band-pass filter(L32, L35) is mixed with the first local signal generated by theVCO by the first mixer (Q16) to produce a first IF signal (38.85MHz) (Upper heterodyne).

The first IF signal passes through a MCF (Monolithic crystalfilter: XF1) to remove unwanted components.

The first IF signal passing through the MCF (XF1) is amplifiedby an IF amplifier (Q24) and the resulting signal enters the FMIC (IC3).

Fig. 2 Receiver section configuration

Item Rating

Nominal center frequency (fo) 38.85MHzPass bandwidth ±6.0kHz or more at 3dBAttenuation bandwidth ±25kHz or less at 35dBUltimate attenuation 70dB or more (fo –910 kHz)Spurious response 40dB or more (fo +1MHz)Ripple 1dB or lessInsertion loss 4dB or lessTerminating impedance 610Ω ±5% // 3pF ±0.5pF

Table 2 MCF (L71-0619-05) characteristics (TX-RX unit XF1)

Item Rating

Nominal center frequency (fo) 450kHz3dB bandwidth ±6.5kHz or more50dB bandwidth ±15.5kHz or lessRipple 2dB or less (fo ±6.5kHz)

55dB or moreGuaranteed attenuation (fo ±18kHz to ±33kHz)

50dB or more (fo ±100kHz)Insertion loss 4dB or lessI/O matching impedance 1.5kΩ

Table 3 Ceramic filter (L72-0968-05) characteristics (TX-RX unit CF1)

GMC

Downloaded

TH-K2AT/K2E/K2ET

7

CIRCUIT DESCRIPTION

IF Circuit

The first IF signal (38.85 MHz) amplified by the IF amplifier (Q24)and the second IF signal (38.4 MHz) generated by tripling the 12.8MHz reference oscillator frequency of the TCXO (X1) by Q23, aremixed in the FM IC to produce a second IF signal (450 kHz) (Lowerheterodyne).

The second IF signal passes through a ceramic filter (CF1)to remove unwanted components.

The second IF signal passing through the ceramic filter (CF1)passes through the IF amplifier in the FM IC again and isdetected to produced an audio signal.

Squelch and Mute Circuit

A noise component is obtained by passing FM detectionoutput (FM IC pin 9) through an operational amplifier in the

CF1450kHz

CD1

AF OUT

AFM

SM

SQ

IC8MPU

49

9

48

SMV

SQV

16 15 14 13 12 11 10 9

1 2 3 4 5 6 7 8

MIX

LocalOSC

Buffer

RSSI

Quadraturedetector

LPF

NoiseAMP

IF AMP InverterAMP

1st IF input(38.85MHz)

IC3FM IC

2nd local OSC(38.4MHz)

5R

Q21AF FILTER

Q20AF MUTESWITCH

VOL IN

R135

C173 C174

R125

R126

Noisecomp

Rectifier

5R

SP

AF OUT AFFILTER

Q21

AF MUTESWITCH

Q20

IC6AF AMP

IC3FM IC

VR201AF VOLUME

DTMF/BEEP

REMIC8MPU

SPKAFO

SPGREM/TXD

40

46

9

J4SP JACK

Fig. 3 IF, Squelch, Mute and S meter circuit

Fig. 4 AF amplifier

FM IC and band-pass filter consisting of R125, R126, R135,C173, C174. The noise component is rectified in the FM IC toproduce a DC voltage, which is output from the N-REC terminal(pin 14) of the FM IC as squelch voltage.

The squelch voltage enters the SQ terminal (pin 48) of theMPU (IC8) and is compared with the reference voltage presetin the MPU to control audio signal ON/OFF.

When "L" is output from the AFM terminal (pin 9) of the MPU,the AF mute switch (Q20) is activated to mute the audio signal.

S Meter Circuit

The S meter voltage is output from the RSSI terminal (pin12) of the FM IC (IC3) and input to the SM terminal (pin 49) ofthe MPU. Then the voltage is converted from analog to digitalin the MPU to control the S meter display on the LCD.

AF Amplifier

The detected audio signal passes through an AF filter (Q21)and enters an AF mute switch (Q20).

After passing through the AF mute switch (Q20), the signalpasses through an AF volume (VR201) and is amplified to aspecified output level with an AF amplifier (IC6).

The audio signal amplified with the AF amplifier (IC6) isoutput through an internal speaker or an external speakerjack (J4).

The beep tone and the DTMF signal are output from theDTMF/BEEP terminal (pin 40) of the MPU (IC8), enters the AFamplifier (IC6) and is output as a monitor tone.

TH-K2AT/K2E/K2ET

8

CIRCUIT DESCRIPTION

Transmitter System

Microphone Amplifier Circuit

The audio signal from the microphone passes through ahigh-pass filter (IC5) and enters a microphone amplifier (IC16).

The signal passes through a pre-emphasis circuit, limiteramplifier and splatter filter inside the microphone amplifier.The splatter filter will remove distortion outside the audio band.

Modulation Circuit

The audio signal amplified by the microphone amplifier(IC16) passes through a semi-fixed volume (VR5) formodulation adjustment, and goes to the VCO modulationvaricap (D6) for variable reactance phase modulation.

Drive and Final Circuit

The output signal from VCO (Q1) passes through an RFamplifier (Q2, Q5, Q9) and drive amplifier (Q10, Q11), and isamplified by a power amplifier (Q12).

Transmission/Reception Switching Circuit

The signal amplified by the power amplifier (Q12) passesthrough a transmission/reception switching circuit and a low-pass filter, and is fed to the antenna.

MIC IC5

HPF

IC16MIC AMP

Pre-emphasis

Splatterfilter

VCO

Limiter6 1

Fig. 5 Microphone amplifier circuit

MIC

HPF MICAMP

IC16

ANTSW

D10,L19D12,D13

VCO

Q1

LPF

IC5

VR5MAX DEV

Q2RF AMP

Q5RF AMP

Q9RF AMP

Q10DRIVE AMP

Q11DRIVE AMP

Q12POWER AMP

ANT

Fig. 6 Modulation, Drive, Final and

Transmission/reception switching circuit

APC Circuit

The APC (Automatic Power Control) circuit is used to obtaina stable transmission power and controls transmission outputby detecting the drain current of Q11 and Q12.

The transmission output can be changed in three levels:High, Mid, and Low.

The reference voltage is output from the BPF/APC terminal(pin 6) of the MPU (IC8) and the detection voltage generated byR70, R71 and R72 are fed to the APC differential amplifier (IC2).

The voltage in proportion to the difference betweenreference voltage and detection voltage is output from theBOUT terminal (pin 7) of IC2 as an APC voltage.

Q10

Q15

Q11

Q12

VG

G

Q58

VD

D

LPF

ANT

D12

D13

RX

5T

B

1AOUT

IC2APC AMP

2A–IN

3A+IN

4

8

7

6

5GND

V+

BOUT

B–IN

B+IN

R72

R71

R70

Q14

B

Q13

+

TH

1

–t

Q55

7KAPC

51

6BPF/APC

THERM

16FINAL

IC8MPU

D10

L19

Fig. 7 APC and Temperature protection circuit

The transmission/reception switching circuit consists of D10,L19, D12 and D13. These diodes are turned ON in transmitmode and OFF in receive mode to switch signals.

TH-K2AT/K2E/K2ET

9

CIRCUIT DESCRIPTION

The APC voltage controls the gate voltage of Q11 and Q12,and keeps transmission output stable.

The MPU detects power supply voltage and controls Q58by transmission power supply voltage and transmission power.For example, if the power supply voltage during transmission,is equal to or higher than approx. 10.5 V and if power is at Midor Low level, the APC voltage level applied to Q12 is reducedby Q58.

Temperature Protection Circuit

To prevent thermal destruction of the power amplifier (Q12),this circuit reduces APC voltage when Q12 temperature rises.

The MPU (IC8) detects temperature with a thermistor (TH1)and controls reference voltage to the APC circuit.

PLL System

PLL Circuit

A reference frequency of 5 kHz or 6.25 kHz is produced bydividing the 12.8 MHz reference frequency of the TCXO (X1)with PLL IC (IC1). Comparison frequency is produced by

TCXOPLL IC

IC1

LOOPFILTER

TO

TCXO5C5/0V

5MS5/0V

PLL5C5/0V

VCX1

12.8MHz

CLOCKDATA

LE

Fo/LDIF Rectifier

LPF Q6

RFAmp

D1,D2

VCO

5C5/0V

LV1~5V

SHIFTH/L

RippleFilter

Q4

OSC

Q1BuffAmp

Q2RF

Amp

Q5

SW

D8,D9

MODSHIFT

SW

Q3

MOD

12.8MHz

TXRX

5T 5/0V5R 5/0V

VR

1

Fig. 8 PLL and VCO circuit

amplifying VCO output with an RF amplifier (Q6) and dividingit with the PLL IC.

The PLL synthesizer with 5 kHz and 6.25 kHz step isconfigured by comparing phases of the reference frequencyand comparison frequency.

The phase difference between reference frequency andcomparison frequency passes through a charge pump in thePLL IC, then ripples are removed with a loop filter with low-range passing characteristics to produce VCO control voltage(lock voltage).

VCO Circuit

The VCO produces a desired frequency directly with aColpits oscillation circuit containing an oscillation transistor (Q1)used for both transmission and reception.

The VCO control voltage is applied to varicap (D1, D2) toproduce a desired frequency.

The SHIFT terminal (pin 113) of the MPU (IC8) goes "H"during reception, and the shift control switch (Q3) is turnedON to change oscillation frequency.

Fo/LD PLL LD

IC8MPU

IC1PLL IC

R32

D16

C40

R3514 102

5C

Fig. 9 Unlock detection circuit

Unlock Detection Circuit

When the PLL is unlocked, the waveform of the pulseoutput from the Fo/LD terminal (pin 14) of the PLL IC (IC1) isrectified with R32, D16, R35 and C40, and the Fo/LD terminalis made “L” level. The voltage at the Fo/LD terminal isdetected by the MPU to control transmission/receptionswitching timing.

TH-K2AT/K2E/K2ET

10

Power Supply Circuit

Charging Circuit

When an external power supply is connected to the DC INterminal, the constant-current circuit consisting of Q33 andD31 provides a constant current of approx. 110 mA to the Ni-MH battery.

If no external power supply is connected to the DC INterminal, the constant-current circuit does not function.

Power Supply Switching Circuit

The voltage supplied through the battery terminal or DC INterminal is branched in the power supply switching circuit asshown in Fig.10 and then supplied to the required components.

Battery Type Recognition Circuit

When the battery pack is attached to the transceiver, thebattery type is recognized with the T terminal on thetransceiver. This battery type recognition activates chargingfor the Ni-MH battery pack and displaying the battery meter.

+

-

T

B

J2

RN2701

XC6202PB 52FR

Q41

D32

D80

5T SW

Q37, Q38

2SK18305M

CHARGESW

RB051L-40

IC6D48,49D42,43,46D47,44

BATT CHARGE

5R SW

TK11250 CUCB

5.0V

TK11250 CM

AVR

5C SW

PROTECT

CPH3317

2SJ347

Q35

CHARGE

BTDET

Q34

Q57D33

IC12

AVR

2SB1184(Q,R)2SC4617(R)

IC4

5MS SW

Q55

5MV SW

Q36

RB521S-30

DC-IN DET

RN2105

AF AMP

2SB1184 (Q,R)

PROTECT5.0V

11.5V

AF/LAMP AVR

RN2105

Q53

PROTECT

THERMDET

2SK1830

B

RB051L-40

Q33

AVR

IC9

B

PROTECT

D36RB521S-30

D35

PROTECT

RB521S-30

PROTECT

D30RB521S-30

IC8MPU

D31DA221

CONSTANTCURRENT

BTEMP

DCDET

BATT TERMINAL7.5V Norminal(6.0 - 9.0V)

DC IN13.8V Norminal(12.0 - 16.0V)

IC1TCXOQ4,5,6D40,41

5R

5T

VR1ENC

5C

Q9,10,13D8,10TH1IC16Q47

5MV

IC3,17D9,14Q16,17Q22,23,24Q59

IC5Q30

5MS

Fig. 10 Charging and Power supply switching circuit

Control System

Reset and Backup Circuit

When power is supplied to the transceiver, the 5M voltagegoes “H” as C303 is charged.

A rising edge of the 5M voltage is detected by the voltagedetection IC (IC11) and when its output (RESET) goes “H”,the reset status of the MPU is released.

D35 R244 5M

5C

C307

R243

L63BATT 5V

AVR

IC9

IC8MPU

IC15EEPROM

Timing chart

PowerON

5V5M

0

PowerOFF

IN OUT

C303

+IC11

IN OUTRESET

IC10

IN OUT INT

5VRESET

0

5VINT

0

If the supplied voltage to the transceiver is reduced andthe 5M voltage falls below the detection voltage of the voltagedetection IC (IC10), the MPU detects it by an interruptprocessing, backs up data in EEPROM (IC15) and turns thepower off.

Fig. 11 Reset and Backup circuit

CIRCUIT DESCRIPTION

TH-K2AT/K2E/K2ET

11

Voltage Detection Circuit

Various voltages are input to the A/D port of the MPU (IC8)for processing.

Battery voltage is divided with resistors (R240, R241) andenters the BATT terminal (pin 52) of the MPU.

Battery voltage is used for battery meter indication duringtransmission or for alert tone processing when an abnormalpower supply voltage (approx. 16.5 V or higher) is applied.

Squelch voltage becomes DC voltage by detecting changesin noise voltage in the FM IC (IC3), and the signal is used forsquelch control.

The S meter voltage is output from the RSSI pin of the FMIC to control S meter display.

Detection of thermistor voltage (temperature) in the Ni-MHbattery during charging, detection of remote microphone keypressing and VOX voltage monitoring are performed througheach A/D port of the MPU.

Battery Save Circuit

If there is no signal (squelch off, scan off or no key operation)for longer than 10 seconds, the transceiver will enter thebattery save mode.

Battery save operation is performed by controlling Q57 withan output signal from the 5C (SAVE) terminal (pin 15) of theMPU.

The 5C ON/OFF cycle ratio during battery saving can be setfrom a transceiver menu.

5MS 5C

5MQ41

Q57

37

15

5MS

5C (SAVE)

IC8MPU

Fig. 12 Battery save circuit

LED Drive Circuit

The LCD and key illumination LEDs are lighted by controllingQ51 for the LCD and Q50 for keys according to the outputvoltage from the AF/LAMP AVR (Q37).

The BUSY and TX illumination LEDs are lighted by controllingQ47.

B

AF AMP

D33

Q38

Q37

56LAMP

IC8MPU

99RX LED

D48

D49

D42

D43

D46

Q50

D41BUSY LED

R227

D40

TX LED

R226

5C

5T

D42

D43

Q51

Q47

D42

D43

D44

D47

Fig. 13 LED drive circuit

CIRCUIT DESCRIPTION

TH-K2AT/K2E/K2ET

12

Key and Encoder Input Circuit

The POWER key is assigned to the interrupt port (pin 95) ofthe MPU.

The PTT key is assigned to the dedicated port (pins 13, 14)of the MPU.

SETCALL#0∗

MONIMR987

LAMPVFO654

MENUF321

KIN0 KOUT0 KOUT1 KOUT2 KOUT3 PWRSW

95

S7POWERSW

J3

ROTARYENCODER

KIN1 KIN2 KIN3 KIN4

IC8MPU

PTTI

14

PTTE

13

ENCB

36

ENCA

35

SET

MONI

LAMP

MENUCALLMRVFOF

KIN0 KOUT0 KOUT1 KOUT2 KOUT3

95

S7

J3

KIN1 KIN2 KIN3 KIN4

IC8MPU

PTTI

14

PTTE

13

ENCB

36

ENCA

35

PWRSW

POWERSW ROTARY

ENCODER

Other keys composes a matrix and key presses are detectedby scanning them by software.

The encoder reads data using the interrupt port (pins 35and 36) of the MPU.

16 key (K, K2, M, M2 and E3 types)

Fig. 14 Key and Encoder input circuit

4 key (E type)

CIRCUIT DESCRIPTION

TH-K2AT/K2E/K2ET

13

CTCSS/DCS

The encode signal is generated by the MPU (IC8) and outputfrom the TONE terminal (pin 41) of the MPU.

The unwanted high-frequency components of the encodesignal output from the MPU are removed with a low-pass filter,and applied to VCO modulation input (MOD) and TCXO VCterminal for modulation.

The VCO and TCXO modulation levels are adjusted by VR6to produce flat modulation characteristics in low and highranges.

The decode signal is input to the SIGIN pin (pin 47) of theMPU after the waveform of the audio signal from the FM IC isrectified with a CTCSS/DCS filter (IC17). Then the set CTCSStone frequency and DCS code are detected by digital signalprocessing in the MPU to control muting.

LPFVR6

VCO

VOL OUT

MOD

X1TCXO

VC

IC16

1

6

MICAMP

IC5

HPF

MIC

IC6AF AMP

Vin

IC8MPU

TONE41

40

47

111

9SIG INVOX IN

NOAA K, K2 types only

DTMF/BEEP

IC17D24Q30 IC3

CTCSS/DCSFILTER

FMIC

50

VR

5

AMP

DTMF

The DTMF signal is generated by the MPU (IC8) and isoutput from the DTMF/BEEP terminal (pin 40) of the MPU.

The DTMF signal is mixed with an audio signal at the inputside of the AF amplifier (IC6), and is output as a monitor tone.

The DTMF signal is mixed with a modulation signal at theinput side of pre-emphasis in the microphone amplifier (IC16)and used as a transmit signal.

VOX

The IC5 and Q30 amplify the audio signal captured in themicrophone, and then the signal is converted into the DCVoltage D24 rectifies.

The DC voltage activates the MPU (IC8), and the VOX starts.

Weather Alert (K and K2 types only)

The IC17 apmlifies the detected signal from the FM IC (IC3),and the MPU (IC8) processes the signal. This signal processingactivates Weather Alert function.

Fig. 15 CTCSS/DCS, DTMF, VOX, Weather alert

Serial Control

Serial control must be enabled from a transceiver menu sothat the REM/TXD pin of the speaker jack (J4) and the PTT(RXD) pin of the microphone jack (J3) function as TXD andRXD, respectively, when communicating with a personalcomputer.

SP

POUT10

HPF

IC5

IC6AF AMP

PTTE

TXD

RXD

REM

IC8MPU

SPKAFO

SPGREM/TXD

13

46J4

SP JACK

IM

5MS

+

–

PTTMIC

J3MIC JACK

5MC

12

11

MIC

Fig. 16 Serial control

CIRCUIT DESCRIPTION

TH-K2AT/K2E/K2ET

14

MPU : 90522BPFFG139 (IC8)

Pin function

1 CLOCK O Common serial clock output2 DATA O Common serial data output3 EEPDI I Data input from EEPROM4 EEPCS O Chip select output to EEPROM5 VOX O VOX power supply switch L:ON

6 BPF/APC OBPF tuning voltage output, APC voltageoutput (PWM)

7 KAPC O APC ON/OFF switch L:APC ON8 VCC - Positive power supply9 AFM O AF mute switch L:Mute10 SPM O Speaker mute switch H:Mute11 RXD I UART data input line from PC (9600bps)12 TXD O UART data output line to PC (9600bps)13 PTTE I External [PTT] key input L:ON14 PTTI I [PTT] key input L:ON15 5C(SAVE) O Save power supply switch L:ON

16 FINAL OGate bias control of TX final amplifier

L:Bias ON17 SEG0 O LCD segment output 018 SEG1 O LCD segment output 119 SEG2 O LCD segment output 220 SEG3 O LCD segment output 321 SEG4 O LCD segment output 422 SEG5 O LCD segment output 523 SEG6 O LCD segment output 624 SEG7 O LCD segment output 725 SEG8 O LCD segment output 826 SEG9 O LCD segment output 927 SEG10 O LCD segment output 1028 SEG11 O LCD segment output 1129 SEG12 O LCD segment output 1230 SEG13 O LCD segment output 1331 SEG14 O LCD segment output 1432 SEG15 O LCD segment output 1533 VSS - GND

34 COR1- Power supply stabilization (Connected to

VSS through 0.1uF)35 ENCA I Encoder A side input36 ENCB I Encoder B side input37 5MS O 5MS main power supply switch L:ON38 DVCC - Reference voltage input for DAC39 DVSS - Ground for DAC

40DTMF/

OEncode waveform output of DTME/BEEP/

BEEP 1750Hz (D/A)

41 TONE OEncode waveform output of CTCSS/DCS(D/A)

42 AVCC - Positive power supply for ADC43 AVRH - Reference voltage input for ADC44 AVRL - Ground reference voltage input for ADC45 AVSS - Ground for ADC

46 REM IRemote control microphone key voltageinput (A/D)

47 SIGIN IDecode waveform input of CTCSS/DCS(A/D)

Pin Pin I/O FunctionNo. NamePin Pin I/O FunctionNo. Name48 SQ I Noise voltage input for squelch (A/D)49 SM I RSSI voltage input for S-meter (A/D)50 VOXIN I Microphone voltage input for VOX (A/D)51 THERM I TX temperature compensation input(A/D)52 BATT I Battery voltage input (A/D)

53 BTEMP IDetection of thermistor voltage (temperature)in the Ni-MH battety (A/D)

54 VCC - Positive power supply

55 CHARGE OBattery charge circuit power supply switch

H:ON56 LAMP O Lamp power supply switch H:ON

57 AFAMP OAF amplifier/Lamp AVR power supplyswitch H:ON

58 NAR O Wide/Narrow switching H:Narrow59 COM0 O LCD common output 060 COM1 O LCD common output 161 COM2 O LCD common output 262 COM3 O LCD common output 363 VSS - GND64 SEG16 O LCD segment output 1665 SEG17 O LCD segment output 1766 SEG18 O LCD segment output 1867 SEG19 O LCD segment output 1968 SEG20 O LCD segment output 2069 SEG21 O LCD segment output 2170 SEG22 O LCD segment output 2271 SEG23 O LCD segment output 2372 SEG24 O LCD segment output 2473 NC - Not used74 NC - Not used75 SEG25 O LCD segment output 2576 SEG26 O LCD segment output 2677 SEG27 O LCD segment output 2778 SEG28 O LCD segment output 2879 SEG29 O LCD segment output 2980 SEG30 O LCD segment output 3081 SEG31 O LCD segment output 3182 V0 - Not used83 V1 - Not used84 V2 - Not used85 V3 - LCD drive power supply 386 HST(VCC) I Not used (VCC)87 MD2 I L fixed88 MD1 I H fixed89 MD0 I H fixed90 RESET I Reset input L:Reset91 VSS - GND92 X0 I System clock (7.9872MHz)93 X1 O System clock (7.9872MHz)94 VCC - Positive power supply95 PWRSW I Power switch interrupt input (↓)96 INTUP I Power supply voltage interrupt input (↑)97 INTDW I Power supply voltage interrupt input (↓)

SEMICONDUCTOR DATA

TH-K2AT/K2E/K2ET

15

98 DCDET IDC IN detection interrupt input (↓) L:DC IN connected

99 RXLED O Busy LED output H:ON100 BSFT O Beat shift swiching output H:ON101 PLLEN O Serial enable output to PLL IC102 PLLLD I Lock detection input from PLL IC H: Lock103 KIN0 I Key matrix input 0104 KIN1 I Key matrix input 1105 KIN2 I Key matrix input 2106 KIN3 I Key matrix input 3107 KIN4 I Key matrix input 4108 TYPE I Market code bit input109 VUKEY I Detection of 4 key or 16 key110 MICM O Microphone mute switch H:Mute111 NOAA I 1050Hz tone detection input112 5R O RX power supply switch L:ON113 SHIFT O VCO shift switch L:TX, H:RX114 5T O TX power supply switch L:ON115 KOUT0 O Key matrix output 0116 KOUT1 O Key matrix output 1117 KOUT2 O Key matrix output 2118 KOUT3 O Key matrix output 3119 VSS - GND120 BTDET O Battery detection switch L:ON

SEMICONDUCTOR DATA / COMPONENTS DESCRIPTION

Pin Pin I/O FunctionNo. Name

IC1 PLL IC

IC2APC differentialamplifier

IC3 FM ICIC4 11.5V AVRIC5 HPF Active filterIC6 AF amplifierIC8 MPUIC9 5.0V AVR

IC104.4V voltage

MPU INT voltage detectiondetection

IC113.3V voltage

MPU Reset voltage detectiondetection

IC12 5.0V AVRIC15 EEPROMIC16 MIC amplifier Limiter, splatter filter

IC17CTCSS/DCS/WX

Active filterfilter

Q1 VCOQ2 RF amplifier

Q3VCO shift

On RXcontrol switch

Q4 Ripple filterQ5,6,9 RF amplifierQ10,11 Drive amplifier

Q12 Power amplifier

Q13APC circuit

On TXoperation switch

Q14APC output

On TXswitch

Q15Q10 operation

On TXswitch

Q16 1st mixerQ17 RX 1st amplifier

Q20Audio mute

Audio mute when offswitch

Q21 Audio filter Active filter

Q22Wide/narrow

On when wide is selectedchangeover switch

Q23 Tripler 2nd localQ24 IF amplifier 1st IF 38.85MHz

Q27Wide/narrow

On when wide is selectedchangeover switch

Q29MIC mute

Mutes when ONswitch

Q30VOX detectionamplifier

Q31Q56 operation

Off when the speaker outputs audioswitch

Q33 Charge switch

Ref. No. Use/Function Operation/Condition/Compatibility

TX-RX UNIT (X57-674X-XX)

COMPONENTS DESCRIPTION

TH-K2AT/K2E/K2ET

16

D33Reverse current

Batteryprevention

D34AVRconstant-voltage

D35Reverse current

Batteryprevention

D36Reverse current

DC INprevention

D40 TX LED Lights on TXD41 BUSY LED Lights on RX

D42-44 Key illuminationKey backlight illumination

D46,47 LED

D48,49LCD illumination

LCD backlight illuminationLED

D60Key typedetection

D62-65market codedetection

D69-72Reverse current

Key matrixprevention

D73 Voltage dropD74,79 Limiter

D80Reverse currentprevention

COMPONENTS DESCRIPTION

Q34Q33 operation

On when chargingswitch

Q35 DC IN detection H: DC IN detection

Q36Ni-MH temperature On when temperature detection isdetection activated

Q37AF amplifier/Lamp AVR

Q38Q37 operation On when the speaker outputs audio orswitch lamp lights

Q41 5MS switch On when 5MS is applied

Q47TX/BUSY LEDswitch

Q50 Key LED switch On when the key LED lightsQ51 LCD LED switch On when the LCD LED lightsQ52 Beat shift switchQ53 5R/5MV switch On when 5R or 5MV is appliedQ55 5T switch On when 5T is applied

Q56Speaker muteswitch

Q57 5C switch On when 5C is applied

Q58Q12 gate

Off when High power is selectedvoltage switch

Q59WX detectionamplifier

D1,2VCO frequencycontrol

D5 Frequency shiftD6 VCO modulationD7 Speed up Ripple filterD8 RF switch On TXD9 RF switch On RX

D10-13 Antenna switch On TX

D14Reverse current

APC reference voltageprevention

D15APC outputvoltage limiter

D16 PLL lock detection

D17Over inputprotection

D18-21 RX BPF tuningD22 MIC mute control

D24VOX detectionrectification

D25Speaker mutespeed up

D26 C246 discharge

D27MIC ALCrectification

D30Reverse current

Charge currentprevention

D31Constant-current

Constant-current chargecircuit

D32Reverse current

DC INprevention

Ref. No. Use/Function Operation/Condition/Compatibility Ref. No. Use/Function Operation/Condition/Compatibility

TH-K2AT/K2E/K2ET

17

∗ New Parts. indicates safety critical components.Parts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.

L: Scandinavia K: USA P: CanadaY: PX (Far East, Hawaii) T: England E: EuropeY: AAFES (Europe) X: Australia M: Other Areas

Parts No. DescriptionAddressNewpartsDestination Destination

TH-K2AT/K2E/K2ET

Ref. No. Parts No. DescriptionAddressNewparts

TH-K2AT/K2E/K2ET (Y50-580X-XX)TX-RX UNIT (X57-674X-XX)

Ref. No.

PARTS LIST

E : TH-K2E K : TH-K2AT M : TH-K2ATE3 : TH-K2ET K2 : TH-K2AT M2 : TH-K2AT

1 3A,2G * A02-3817-02 CABINET ASSY(BATTERY CASE) K2,M22 1C * A02-3818-23 CABINET ASSY(4KEY) E3 1A * A02-3819-23 CABINET ASSY(16KEY) K,K2,M3 1A * A02-3819-23 CABINET ASSY(16KEY) M2,E34 3A,3C * A10-4066-11 CHASSIS

5 3B,3D * A82-0053-02 REAR PANEL

6 1B,1D * B09-0675-03 CAP(SP/MIC/DC IN)7 1A,1C * B10-2746-03 FRONT GLASS8 1B,1D * B11-1805-03 ILLUMINATION GUIDE(LCD)9 2B,2D * B11-1806-04 FILTER(LCD)10 1B,1D * B38-0881-05 LCD

11 1G * B62-1695-00 INSTRUCTION MANUAL(CHINESE) M211 1E,1G * B62-1696-00 INSTRUCTION MANUAL(ENGLISH)11 1E,1G * B62-1697-00 INSTRUCTION MANUAL(SPANISH) K,K2,E11 1E * B62-1697-00 INSTRUCTION MANUAL(SPANISH) E311 1E * B62-1699-00 INSTRUCTION MANUAL(GERMAN) E,E3

11 1E * B62-1702-00 INSTRUCTION MANUAL(ITALIAN) E,E311 1E * B62-1757-00 INSTRUCTION MANUAL(FRENCH) E,E311 1E * B62-1758-00 INSTRUCTION MANUAL(DUTCH) E,E312 3A * B72-2128-04 MODEL NAME PLATE(TH-K2AT) K,K2,M12 3A * B72-2128-04 MODEL NAME PLATE(TH-K2AT) M2

12 3C * B72-2129-04 MODEL NAME PLATE(TH-K2E) E12 3A * B72-2193-04 MODEL NAME PLATE(TH-K2ET) E3

13 2B,2D * E04-0443-05 RF COAXIAL RECEPTACLE(SMA)14 2A,2C * E23-1234-04 TERMINAL(BATTERY)15 2B,2D * E29-1199-04 INTER CONNECTOR(LCD)16 1A,1C * E37-1106-05 LEAD WIRE WITH CONNECTOR(SP)

17 2A,2C * F10-2464-04 SHIELDING COVER(FINAL FET)18 2A,2C * F10-2465-04 SHIELDING COVER(ANT TERMINAL)19 2B,2D * F15-1008-04 SHADOW PLATE(LCD)

- * G10-1317-04 FIBROUS SHEET(SP NET)21 3B,3D G53-1529-04 PACKING(VOL/ENC)22 2A,2C * G53-1572-02 PACKING(CASE)23 2B,2D * G53-1589-03 PACKING(SP/MIC)

24 3E * H52-1960-02 ITEM CARTON CASE(TH-K2AT) K,M24 3E * H52-1961-02 ITEM CARTON CASE(TH-K2E) E24 3E * H52-1962-02 ITEM CARTON CASE(TH-K2ET) E325 2H * H52-2009-02 ITEM CARTON CASE(TH-K2AT) K2,M226 2F * H12-3146-01 PACKING FIXTURE K,M,E

26 2F * H12-3146-01 PACKING FIXTURE E327 3G * H12-3147-03 PACKING FIXTURE K2,M2

28 2A,2C * J19-5451-03 HOLDER(TERMINAL)29 1B,1D * J21-8456-03 HARDWARE FIXTURE(LCD)30 2E,3G * J29-0709-04 BELT HOOK ASSY ACCESSORY31 2A,2C * J30-1284-04 SPACER(PTT KNOB)32 3E,2G J69-0342-05 HANDSTRAP ACCESSORY M,M2,E

32 3E J69-0342-05 HANDSTRAP ACCESSORY E333 2B,2D J82-0076-05 FPC(VOL/ENC)45 3A,3C J99-0376-04 ADHESIVE TAPE34 1B,1D K29-5150-03 KNOB(VOL)35 1B,1D K29-5159-03 KNOB(ENC)

36 1A * K29-9272-02 KEY TOP(16KEY) K,K2,M36 1A * K29-9272-02 KEY TOP(16KEY) M2,E337 1A,1C * K29-9274-03 KNOB(PTT/LAMP/MONI)38 1C * K29-9276-02 KEY TOP(4KEY) E

A 2B,2D N09-1492-05 PAN HEAD SCREW(SMA)B 1B,1D N14-0569-04 CIRCULAR NUT(VOL/ENC)C 1B,1D N14-0573-04 CIRCULAR NUT(SMA)D 1A,1C N79-2035-46 PAN HEAD TAPTITE SCREW(PCB)E 2A,2C N79-2040-45 PAN HEAD TAPTITE SCREW(HOLDER,R PANEL)

F 3A,3C N82-2007-46 PAN HEAD TAPTITE SCREW(CASE)G 2A,2C N09-2433-05 PAN HEAD TAPTITE SCREW(FINAL FET)

39 2B,2D R39-0602-05 VARIABLE RESISTOR

40 1A,1C T07-0341-15 SPEAKER41 2F,3G * T90-1018-25 HELICAL ANTENNA ACCESSORY

42 2F * W08-0959-15 CHARGER(230V/13.8V) ACCESSORY M,E,E343 2E * W08-0960-15 CHARGER(120V/13.8V) ACCESSORY K44 2E * W09-0991-05 BATTERY ASSY(7.2V/1100MAH) ACCESSORY K,M,E44 2E * W09-0991-05 BATTERY ASSY(7.2V/1100MAH) ACCESSORY E3

D40 B30-2156-05 LED(RED)D41 B30-2157-05 LED(YELLOW)D42-44 B30-2205-05 LED(YG) E3D42-44 B30-2205-05 LED(YG) K,K2,MD42-44 B30-2205-05 LED(YG) M2

D42,43 B30-2205-05 LED(YG) ED46 B30-2205-05 LED(YG) ED46,47 B30-2205-05 LED(YG) E3D46,47 B30-2205-05 LED(YG) K,K2,MD46,47 B30-2205-05 LED(YG) M2

D48,49 B30-2237-05 LED(YG)

C1 CK73HB1C103K CHIP C 0.010UF KC2 CK73HB1H102K CHIP C 1000PF KC3 CC73GCH1H030B CHIP C 3.0PF BC4 CK73HB1H102K CHIP C 1000PF KC5 CK73HB1A104K CHIP C 0.10UF K

C6 CK73HB1H102K CHIP C 1000PF KC7 CC73HCH1H0R5B CHIP C 0.5PF BC8,9 CC73GCH1H270G CHIP C 27PF GC10 CK73HB1C103K CHIP C 0.010UF KC11 CK73HB1H102K CHIP C 1000PF K

C13 CC73GCH1H0R5B CHIP C 0.5PF BC14 CK73HB1H102K CHIP C 1000PF KC15 CC73HCH1H120J CHIP C 12PF JC17,18 CK73HB1H102K CHIP C 1000PF KC19 CC73HCH1H150J CHIP C 15PF J

C20 CC73HCH1H080D CHIP C 8.0PF DC21 CK73HB1H102K CHIP C 1000PF KC22 CC73HCH1H180J CHIP C 18PF JC24-26 CK73HB1H102K CHIP C 1000PF KC27 C92-0628-05 CHIP-TAN 10UF 10WV

C30 CK73HB1H102K CHIP C 1000PF K

TX-RX UNIT (X54-674X-XX)0-11 : K, K2 0-21 : M, M2 2-71 : E 2-72 : E3

TH-K2AT/K2E/K2ETPARTS LIST

18


DestinationRef. No. Parts No. DescriptionAddressNewparts DestinationRef. No. Parts No. DescriptionAddress

Newparts


C33 C92-0002-05 CHIP-TAN 0.22UF 35WVC34 C92-0714-05 TANTALUM 4.7UF 6.3WVC35 C92-0001-05 CHIP-C 0.1UF 35WVC37 CK73HB1H102K CHIP C 1000PF KC38 CK73HB1C103K CHIP C 0.010UF K

C40 CK73HB1A104K CHIP C 0.10UF KC41 C92-0507-05 CHIP-TAN 4.7UF 6.3WVC42 CK73HB1H102K CHIP C 1000PF KC43 CK73HB1C103K CHIP C 0.010UF KC44-46 CC73HCH1H101J CHIP C 100PF J

C50 CC73HCH1H220J CHIP C 22PF JC51 CC73GCH1H220J CHIP C 22PF JC52 CC73HCH1H100D CHIP C 10PF DC54 CK73HB1H102K CHIP C 1000PF KC55 CK73HB1C103K CHIP C 0.010UF K

C56 CK73HB1H102K CHIP C 1000PF KC57 CC73HCH1H100D CHIP C 10PF DC61 CK73HB1H102K CHIP C 1000PF KC64 CK73HB1H102K CHIP C 1000PF KC65 CC73HCH1H180J CHIP C 18PF J

C66 CK73GB0J105K CHIP C 1.0UF KC67 CK73HB1H102K CHIP C 1000PF KC68 CC73HCH1H180J CHIP C 18PF JC69 CC73HCH1H040C CHIP C 4.0PF CC70 CK73GB0J105K CHIP C 1.0UF K

C71 CK73HB1H102K CHIP C 1000PF KC72 CK73GB1C104K CHIP C 0.10UF KC73 CK73HB1H102K CHIP C 1000PF KC74 CC73HCH1H330J CHIP C 33PF JC75 CK73HB1H102K CHIP C 1000PF K

C76 CC73GCH1H390J CHIP C 39PF JC78 CK73HB1H102K CHIP C 1000PF KC82 CK73HB1H102K CHIP C 1000PF KC83 CK73HB1C103K CHIP C 0.010UF KC84 CK73HB1A104K CHIP C 0.10UF K

C85 ∗ C93-0766-05 CERAMIC C 56PF JC88 CC73GCH1H560J CHIP C 56PF JC89 CK73GB1H102K CHIP C 1000PF KC90-92 CK73HB1H102K CHIP C 1000PF KC93 CC73HCH1H080D CHIP C 8.0PF D

C94 CK73GB1H102K CHIP C 1000PF KC95-97 CC73GCH1H120G CHIP C 12PF GC98 CC73GCH1H080B CHIP C 8.0PF BC99 CC73GCH1H130G CHIP C 13PF GC100 CC73GCH1H070B CHIP C 7.0PF B

C101 CC73GCH1H240G CHIP C 24PF GC105-107 CK73HB1H102K CHIP C 1000PF KC108 CC73HCH1H101J CHIP C 100PF JC109-115 CK73HB1H102K CHIP C 1000PF KC116 C92-0544-05 CHIP-TAN 10UF 4WV

C117,118 CK73HB1H102K CHIP C 1000PF KC124 CK73HF1C104Z CERAMIC C 0.1UF ZC125 CC73HCH1H1R5C CHIP C 1.5PF CC126 CC73HCH1H100D CHIP C 10PF DC128 CK73HB1C103K CHIP C 0.010UF K

C129 CC73HCH1H110J CHIP C 11PF JC130 CK73HB1H102K CHIP C 1000PF KC131-133 CK73HB1C103K CHIP C 0.010UF KC134 CK73HB1H102K CHIP C 1000PF KC135 CC73HCH1H120J CHIP C 12PF J

C136 CC73HCH1H100D CHIP C 10PF DC137 CC73HCH1H050C CHIP C 5.0PF CC138 CK73HB1H102K CHIP C 1000PF KC141,142 CK73HB1H102K CHIP C 1000PF KC145 CC73HCH1H220G CHIP C 22PF G

C147 CK73HB1H102K CHIP C 1000PF KC148 CC73HCH1H220G CHIP C 22PF GC152,153 CK73HB1H102K CHIP C 1000PF KC158 CC73HCH1H220G CHIP C 22PF GC159 CC73HCH1H020B CHIP C 2.0PF B

C160 CC73HCH1H270G CHIP C 27PF GC161 CK73HB1H102K CHIP C 1000PF KC162 ∗ CC73HCH1H470G CHIP C 47PF GC163 CK73HB1H102K CHIP C 1000PF KC166 CK73HB1C103K CHIP C 0.010UF K

C167,168 CK73HB1A104K CHIP C 0.10UF KC169,170 CK73HB1A683K CHIP C 0.068UF KC171 CK73HB1H102K CHIP C 1000PF KC172 CK73HB1H182K CHIP C 1800PF KC173,174 ∗ CC73HCH1H181J CHIP C 180PF J

C175 CC73HCH1H220J CHIP C 22PF JC176 CK73HB1A104K CHIP C 0.10UF KC177 C92-0712-05 CHIP-TAN 22UF 6.3WVC178 CK73HB1C103K CHIP C 0.010UF KC179 CK73HB1A104K CHIP C 0.10UF K

C180 CC73HCH1H121J CHIP C 120PF JC182,183 CK73HB1A104K CHIP C 0.10UF KC186 CC73HCH1H240J CHIP C 24PF JC187 CC73HCH1H020C CHIP C 2.0PF CC188 CC73HCH1H240J CHIP C 24PF J

C189 CK73HB1H102K CHIP C 1000PF KC190-192 CK73HB1C103K CHIP C 0.010UF KC193 C92-0507-05 CHIP-TAN 4.7UF 6.3WVC194 CK73HB1A104K CHIP C 0.10UF KC195 C92-0628-05 CHIP-TAN 10UF 10WV

C196,197 CK73HB1C682K CHIP C 6800PF KC198 CK73EF1C105Z CHIP C 1.0UF ZC201 CK73HB1H122K CHIP C 1200PF KC202 CK73HB1H271K CHIP C 270PF KC203 CC73HCH1H121J CHIP C 120PF J

C204 CK73HB1A333K CHIP C 0.033UF KC205 CK73HB1A473K CHIP C 0.047UF KC206 CK73HB1C153K CHIP C 0.015UF KC207 CK73HB1C103K CHIP C 0.010UF KC208 CC73HCH1H820J CHIP C 82PF J

C209 CK73HB1H102K CHIP C 1000PF KC210 CK73HB1C103K CHIP C 0.010UF KC211 CK73HB1H222K CHIP C 2200PF KC212 CK73HB1C123K CHIP C 0.012UF KC213 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C218 CK73HB1H102K CHIP C 1000PF KC219 CK73HB1A473K CHIP C 0.047UF KC220 CK73HB1E472K CHIP C 4700PF KC221,222 CK73HB1C103K CHIP C 0.010UF KC223 CK73HB1H102K CHIP C 1000PF K

C224 CK73HB1A104K CHIP C 0.10UF KC225 CK73GB0J105K CHIP C 1.0UF KC226 CK73HB1A104K CHIP C 0.10UF KC227 C92-0587-05 CHIP-TAN 2.2UF 4WVC228,229 CK73HB1A104K CHIP C 0.10UF K


19



Newparts


C230 CK73FB1C105K CHIP C 1.0UF KC231,232 CK73HB1H102K CHIP C 1000PF KC235,236 CK73HB1C103K CHIP C 0.010UF KC237 C92-0628-05 CHIP-TAN 10UF 10WVC238-241 CK73HB1H102K CHIP C 1000PF K

C242 CK73HB1C103K CHIP C 0.010UF KC243 CK73HB1H102K CHIP C 1000PF KC246 C92-1327-05 CHIP-TAN 100UF 10WVC247,248 CK73HB1A104K CHIP C 0.10UF KC249 CK73HB1H102K CHIP C 1000PF K

C250 CK73EF1C105Z CHIP C 1.0UF ZC252 CC73HCH1H101J CHIP C 100PF JC253 C92-0628-05 CHIP-TAN 10UF 10WVC255 C92-0628-05 CHIP-TAN 10UF 10WVC256,257 CK73HB1H102K CHIP C 1000PF K

C258 CK73HB1A104K CHIP C 0.10UF KC270,271 CK73HB1H102K CHIP C 1000PF KC272 CK73HB1H471K CHIP C 470PF KC276 CK73HB1H102K CHIP C 1000PF KC279-285 CK73HB1H102K CHIP C 1000PF K

C286 CK73FB1C105K CHIP C 1.0UF KC290,291 CK73HB1H102K CHIP C 1000PF KC293 CC73HCH1H470J CHIP C 47PF JC294,295 CC73HCH1H050C CHIP C 5.0PF CC297 CK73HB1A104K CHIP C 0.10UF K

C298 CK73HB1H102K CHIP C 1000PF KC299 CK73FB1C105K CHIP C 1.0UF KC300 CK73HB1H102K CHIP C 1000PF KC302 CK73HB1H102K CHIP C 1000PF KC303 C92-0605-05 TANTALUM C 150UF 6.3WV

C304-306 CK73HB1H102K CHIP C 1000PF KC307 CK73HB1A104K CHIP C 0.10UF KC308 CK73HB1H102K CHIP C 1000PF KC309 CK73FB1C105K CHIP C 1.0UF KC310 CK73EF1C105Z CHIP C 1.0UF Z

C311 CK73GB1C104K CHIP C 0.10UF KC312,313 CK73HB1A393K CHIP C 0.039UF KC314 CK73HB1H102K CHIP C 1000PF KC316 CK73GB1C104K CHIP C 0.10UF KC317,318 CK73HB1H102K CHIP C 1000PF K

C319 C92-0628-05 CHIP-TAN 10UF 10WVC320,321 CK73HB1C822K CHIP C 8200PF K K,K2C323-326 CK73HB1H102K CHIP C 1000PF KC327 CK73HB1A104K CHIP C 0.10UF KC328 CK73GB0J105K CHIP C 1.0UF K

C329 CC73FCH1H560J CHIP C 56PF JC330,331 CK73HB1H102K CHIP C 1000PF KC332 CK73HB1A104K CHIP C 0.10UF KC335,336 CK73HB1A104K CHIP C 0.10UF KC338 CK73FB1C105K CHIP C 1.0UF K

C339 CK73HB1A473K CHIP C 0.047UF KC344-348 CK73HB1H102K CHIP C 1000PF KC349 CK73HB1A104K CHIP C 0.10UF K M,M2,EC349 CK73HB1A104K CHIP C 0.10UF K E3C349,350 CK73HB1A104K CHIP C 0.10UF K K,K2

C351 CK73HB1C103K CHIP C 0.010UF KC352-354 CK73HB1H102K CHIP C 1000PF KC355,356 CK73HB1C103K CHIP C 0.010UF KC357 CK73EF1C105Z CHIP C 1.0UF ZC358 CK73HB1A473K CHIP C 0.047UF K

C359,360 CK73HB1A104K CHIP C 0.10UF KC366 ∗ CC73GCH1H101G CHIP C 100PF GC500,501 CC73HCH1H1R5B CHIP C 1.5PF BC502 CC73HCH1H030B CHIP C 3.0PF BC503 ∗ CC73GCH1H101G CHIP C 100PF G

C504 CC73HCH1H020B CHIP C 2.0PF BC505 CK73HB1A473K CHIP C 0.047UF KC506 CK73HB1H102K CHIP C 1000PF KC510 CC73HCH1H101J CHIP C 100PF J E,E3C511,512 CK73HB1H471K CHIP C 470PF K E,E3

C514 CK73GB1H471K CHIP C 470PF K E,E3C515-517 CK73HB1H471K CHIP C 470PF K E,E3

CN1 E40-5915-05 FLAT CABLE CONNECTORCN2 E40-5929-05 PIN ASSYCN6 ∗ E40-6327-05 PIN ASSYCN7 E40-5630-05 PIN ASSY SOCKETCN8 ∗ E40-6308-05 PIN ASSY

CN9 ∗ E40-6309-05 PIN ASSY SOCKETCN15 E23-1081-05 TERMINALCN17 E23-1081-05 TERMINAL E,E3J2 E03-0190-05 DC JACKJ3 ∗ E11-0484-05 3.5D PHONE JACK(3.5D)

J4 ∗ E11-0483-05 2.5D PHONE JACK(2.5D)

CN10 ∗ F01-1032-05 RADIATION PLATEF1 ∗ F53-0286-05 FUSE(2.5A/32V)F3 ∗ F53-0287-05 FUSE(0.5A/32V)

CD1 L79-1474-05 TUNING COILCF1 L72-0968-05 CERAMIC FILTERL1 L40-1001-86 SMALL FIXED INDUCTOR(10UH)L2 L41-4778-14 SMALL FIXED INDUCTORL3 L41-8278-14 SMALL FIXED INDUCTOR

L5,6 L40-1001-86 SMALL FIXED INDUCTOR(10UH)L8 ∗ L40-1285-71 SMALL FIXED INDUCTOR(120NH)L9-11 ∗ L40-8275-71 SMALL FIXED INDUCTOR(82NH)L12 L40-1075-71 SMALL FIXED INDUCTOR(10NH)L13 L92-0149-05 FERRITE CHIP

L14 ∗ L41-4778-14 SMALL FIXED INDUCTORL15 L41-6868-14 SMALL FIXED INDUCTORL16 L34-4577-05 AIR-CORE COILL17 L34-4606-05 AIR-CORE COILL18 ∗ L41-2285-14 SMALL FIXED INDUCTOR

L19 L34-4569-05 AIR-CORE COILL20 L34-4567-05 AIR-CORE COILL21-23 L34-4569-05 AIR-CORE COILL26 ∗ L41-4785-14 SMALL FIXED INDUCTORL27 ∗ L41-6885-14 SMALL FIXED INDUCTOR

L28 L40-2775-71 SMALL FIXED INDUCTOR(27NH)L29 L40-2275-71 SMALL FIXED INDUCTOR(22NH)L32 L41-8278-14 SMALL FIXED INDUCTORL35 L41-8278-14 SMALL FIXED INDUCTORL38 L41-8278-14 SMALL FIXED INDUCTOR

L40 L41-6878-14 SMALL FIXED INDUCTORL41 L41-1878-14 SMALL FIXED INDUCTORL45,46 ∗ L41-5685-14 SMALL FIXED INDUCTORL49 L92-0131-05 FERRITE CHIPL50 L92-0137-05 FERRITE CHIP

L53 L40-1575-71 SMALL FIXED INDUCTOR(15NH)L54 ∗ L40-5675-71 SMALL FIXED INDUCTOR(56NH)


20



Newparts


L55 L41-1078-14 SMALL FIXED INDUCTORL56 ∗ L41-2278-14 SMALL FIXED INDUCTORL58 ∗ L41-8285-14 SMALL FIXED INDUCTORL63 L92-0140-05 FERRITE CHIPL64 L40-4795-85 SMALL FIXED INDUCTOR(4.7UH)

L66 ∗ L40-1285-71 SMALL FIXED INDUCTOR(120NH)L68 L92-0161-05 BEADS COREX1 ∗ L77-1931-05 TCXO(12.8MHZ)X3 ∗ L77-1940-05 CRYSTAL RESONATOR(7.982MHZ)XF1 ∗ L71-0619-05 MCF(38.85MHZ)

CP1 ∗ RK75HA1J272J CHIP-COM 2.7K J 1/16WCP2 RK75GB1J392J CHIP-COM 3.9K J 1/16WCP31 RK75GB1J392J CHIP-COM 3.9K J 1/16WCP32-35 RK75HA1J102J CHIP-COM 1.0K J 1/16WR4 RK73HB1J102J CHIP R 1.0K J 1/16W

R5 RK73HB1J104J CHIP R 100K J 1/16WR6 RK73HB1J102J CHIP R 1.0K J 1/16WR7 RK73HB1J473J CHIP R 47K J 1/16WR8 RK73HB1J104J CHIP R 100K J 1/16WR9 RK73HB1J271J CHIP R 270 J 1/16W

R10 RK73HB1J470J CHIP R 47 J 1/16WR11 RK73HB1J154J CHIP R 150K J 1/16WR12 RK73HB1J470J CHIP R 47 J 1/16WR13 RK73HB1J682J CHIP R 6.8K J 1/16WR14 RK73HB1J332J CHIP R 3.3K J 1/16W

R15 RK73HB1J562J CHIP R 5.6K J 1/16WR16 RK73HB1J471J CHIP R 470 J 1/16WR17 RK73HB1J332J CHIP R 3.3K J 1/16WR18 RK73HB1J100J CHIP R 10 J 1/16WR19 RK73HB1J124J CHIP R 120K J 1/16W

R20 RK73HB1J102J CHIP R 1.0K J 1/16WR21 RK73HB1J472J CHIP R 4.7K J 1/16WR22 RK73HB1J822J CHIP R 8.2K J 1/16WR24 RK73HB1J471J CHIP R 470 J 1/16WR30 RK73HB1J122J CHIP R 1.2K J 1/16W

R31 RK73HB1J222J CHIP R 2.2K J 1/16WR32 RK73HB1J102J CHIP R 1.0K J 1/16WR33 RK73HB1J220J CHIP R 22 J 1/16WR34 RK73HB1J332J CHIP R 3.3K J 1/16WR35 RK73HB1J124J CHIP R 120K J 1/16W

R36 RK73HB1J100J CHIP R 10 J 1/16WR37,38 RK73HB1J563J CHIP R 56K J 1/16WR39 RK73HB1J271J CHIP R 270 J 1/16WR41 RK73HB1J271J CHIP R 270 J 1/16WR42 RK73HB1J101J CHIP R 100 J 1/16W

R45 RK73HB1J332J CHIP R 3.3K J 1/16WR46 RK73HB1J103J CHIP R 10K J 1/16WR47 RK73HB1J562J CHIP R 5.6K J 1/16WR49 RK73HB1J331J CHIP R 330 J 1/16WR50 RK73HB1J330J CHIP R 33 J 1/16W

R51 RK73HB1J471J CHIP R 470 J 1/16WR52 RK73HB1J102J CHIP R 1.0K J 1/16WR53,54 RK73HB1J101J CHIP R 100 J 1/16WR55 RK73HB1J471J CHIP R 470 J 1/16WR56 RK73HB1J102J CHIP R 1.0K J 1/16W

R58 RK73HB1J100J CHIP R 10 J 1/16WR59 RK73HB1J123J CHIP R 12K J 1/16WR60 RK73HB1J563J CHIP R 56K J 1/16WR61,62 RK73HB1J221J CHIP R 220 J 1/16WR64 R92-1368-05 CHIP R 0 OHM

R70-72 RK73EB2ER39K CHIP R 0.39 K 1/4WR74,75 RK73HH1J104D RESISTOR 100K D 1/16WR76-79 RK73HH1J154D RESISTOR 150K D 1/16WR80 RK73HB1J103J CHIP R 10K J 1/16WR81 RK73HB1J394J CHIP R 390K J 1/16W

R82 RK73HB1J273J CHIP R 27K J 1/16WR83 RK73HB1J563J CHIP R 56K J 1/16WR84 RK73HB1J104J CHIP R 100K J 1/16WR85 RK73GB1J561J CHIP R 560 J 1/16WR86 RK73HB1J562J CHIP R 5.6K J 1/16W

R88 RK73HB1J331J CHIP R 330 J 1/16WR90 RK73HB1J331J CHIP R 330 J 1/16WR91 RK73HB1J102J CHIP R 1.0K J 1/16WR92 RK73HB1J332J CHIP R 3.3K J 1/16WR93 RK73HB1J470J CHIP R 47 J 1/16W

R94 RK73HB1J331J CHIP R 330 J 1/16WR95 RK73HB1J104J CHIP R 100K J 1/16WR96-98 RK73HB1J823J CHIP R 82K J 1/16WR99,100 RK73HB1J105J CHIP R 1.0M J 1/16WR101 RK73HB1J470J CHIP R 47 J 1/16W

R102 R92-1368-05 CHIP R 0 OHMR103 RK73HB1J272J CHIP R 2.7K J 1/16WR104 RK73HB1J560J CHIP R 56 J 1/16WR110,111 RK73HB1J105J CHIP R 1.0M J 1/16WR115 RK73HB1J562J CHIP R 5.6K J 1/16W

R116 RK73HB1J124J CHIP R 120K J 1/16WR117 RK73HH1J272D RESISTOR 2.7K D 1/16WR118 RK73HB1J273J CHIP R 27K J 1/16WR119 RK73HB1J182J CHIP R 1.8K J 1/16WR120 RK73HB1J272J CHIP R 2.7K J 1/16W

R122 RK73HB1J272J CHIP R 2.7K J 1/16WR123 RK73HB1J182J CHIP R 1.8K J 1/16WR124 RK73HB1J332J CHIP R 3.3K J 1/16WR125 RK73HB1J561J CHIP R 560 J 1/16WR126 RK73HB1J273J CHIP R 27K J 1/16W

R127 RK73HB1J470J CHIP R 47 J 1/16WR128 RK73HB1J332J CHIP R 3.3K J 1/16WR130 RK73HB1J101J CHIP R 100 J 1/16WR131 RK73HB1J334J CHIP R 330K J 1/16WR132 RK73HB1J222J CHIP R 2.2K J 1/16W

R133 RK73HB1J102J CHIP R 1.0K J 1/16WR134 RK73HB1J394J CHIP R 390K J 1/16WR135 RK73HB1J474J CHIP R 470K J 1/16WR137 RK73HB1J472J CHIP R 4.7K J 1/16WR140 RK73HB1J184J CHIP R 180K J 1/16W

R141 RK73HB1J183J CHIP R 18K J 1/16WR142 RK73HB1J472J CHIP R 4.7K J 1/16WR143 RK73HB1J471J CHIP R 470 J 1/16WR144 R92-1368-05 CHIP R 0 OHMR145 RK73HB1J472J CHIP R 4.7K J 1/16W

R146 RK73HB1J183J CHIP R 18K J 1/16WR147 RK73HB1J471J CHIP R 470 J 1/16WR148 RK73HB1J154J CHIP R 150K J 1/16WR149 RK73HB1J473J CHIP R 47K J 1/16WR151 RK73HB1J681J CHIP R 680 J 1/16W

R152 RK73HB1J154J CHIP R 150K J 1/16WR153 RK73HB1J102J CHIP R 1.0K J 1/16WR155,156 RK73HB1J104J CHIP R 100K J 1/16WR157,158 RK73HB1J334J CHIP R 330K J 1/16WR159 RK73HB1J124J CHIP R 120K J 1/16W


21



Newparts


R160 RK73HB1J472J CHIP R 4.7K J 1/16WR161 RK73HB1J102J CHIP R 1.0K J 1/16WR162 RK73HB1J184J CHIP R 180K J 1/16WR163 RK73HB1J564J CHIP R 560K J 1/16WR164 RK73HH1J103D CHIP R 10K D 1/16W

R165,166 RK73HB1J824J CHIP R 820K J 1/16WR167,168 RK73HB1J184J CHIP R 180K J 1/16WR169 RK73GH1J104D CHIP R 100K D 1/16WR170 RK73HH1J473D RESISTOR 47K D 1/16WR171 ∗ RK73HH1J563D RESISTOR 56K D 1/16W

R172 RK73HB1J103J CHIP R 10K J 1/16WR173 RK73HB1J153J CHIP R 15K J 1/16WR174 RK73HB1J564J CHIP R 560K J 1/16WR175 RK73HB1J222J CHIP R 2.2K J 1/16WR176 RK73HB1J824J CHIP R 820K J 1/16W

R177 RK73HB1J103J CHIP R 10K J 1/16WR178 R92-1368-05 CHIP R 0 OHMR179 RK73HB1J224J CHIP R 220K J 1/16WR180 RK73HB1J393J CHIP R 39K J 1/16WR181 RK73HB1J471J CHIP R 470 J 1/16W

R182 RK73HB1J102J CHIP R 1.0K J 1/16WR183 RK73HB1J333J CHIP R 33K J 1/16WR185 RK73HB1J274J CHIP R 270K J 1/16WR186 RK73GB1J683J CHIP R 68K J 1/16WR188 RK73HB1J470J CHIP R 47 J 1/16W

R189 R92-1368-05 CHIP R 0 OHMR190,191 RK73HB1J473J CHIP R 47K J 1/16WR192 RK73HB1J471J CHIP R 470 J 1/16WR193 RK73HB1J182J CHIP R 1.8K J 1/16WR194 RK73HB1J103J CHIP R 10K J 1/16W

R195 RK73HB1J101J CHIP R 100 J 1/16WR196 RK73HB1J103J CHIP R 10K J 1/16WR197 RK73HB1J101J CHIP R 100 J 1/16WR198 RK73HB1J103J CHIP R 10K J 1/16WR199 RK73HB1J102J CHIP R 1.0K J 1/16W

R200 RK73HB1J103J CHIP R 10K J 1/16WR201 RK73HB1J472J CHIP R 4.7K J 1/16WR202 RK73HB1J473J CHIP R 47K J 1/16WR203 RK73HB1J474J CHIP R 470K J 1/16WR204 RK73HB1J184J CHIP R 180K J 1/16W

R205 RK73HB1J101J CHIP R 100 J 1/16WR206 RK73HB1J150J CHIP R 15 J 1/16WR207 RK73HB1J102J CHIP R 1.0K J 1/16WR208 RK73HB1J100J CHIP R 10 J 1/16WR209 RK73HB1J104J CHIP R 100K J 1/16W

R210 RK73FB2A120J CHIP R 12 J 1/10WR211 RK73HB1J474J CHIP R 470K J 1/16WR212 RK73HB1J103J CHIP R 10K J 1/16WR213 RK73HB1J223J CHIP R 22K J 1/16WR214 RK73HB1J103J CHIP R 10K J 1/16W

R215 RK73HB1J474J CHIP R 470K J 1/16WR216 RK73HB1J103J CHIP R 10K J 1/16WR217 RK73HB1J821J CHIP R 820 J 1/16WR218 R92-1368-05 CHIP R 0 OHMR223 RK73HB1J224J CHIP R 220K J 1/16W

R224 RK73HB1J183J CHIP R 18K J 1/16WR226 RK73HB1J221J CHIP R 220 J 1/16WR227 RK73HB1J101J CHIP R 100 J 1/16WR230 RK73HB1J221J CHIP R 220 J 1/16W K,K2,MR230 RK73HB1J221J CHIP R 220 J 1/16W M2,E3

R231 RK73HB1J151J CHIP R 150 J 1/16WR235,236 RK73HB1J102J CHIP R 1.0K J 1/16WR237 RK73HB1J104J CHIP R 100K J 1/16WR238,239 RK73HB1J102J CHIP R 1.0K J 1/16WR240 RK73HB1J104J CHIP R 100K J 1/16W

R241-243 RK73HB1J334J CHIP R 330K J 1/16WR244 R92-1252-05 CHIP R 0 OHM J 1/16WR246 RK73HB1J392J CHIP R 3.9K J 1/16WR248 RK73HB1J392J CHIP R 3.9K J 1/16WR252 RK73HB1J104J CHIP R 100K J 1/16W

R253,254 RK73HB1J102J CHIP R 1.0K J 1/16WR255 R92-1368-05 CHIP R 0 OHMR256 RK73HB1J102J CHIP R 1.0K J 1/16WR257 RK73HB1J563J CHIP R 56K J 1/16W K,K2R258 RK73HB1J681J CHIP R 680 J 1/16W K,K2

R258,259 R92-1368-05 CHIP R 0 OHM M,M2,ER258,259 R92-1368-05 CHIP R 0 OHM E3R259 RK73HB1J684J CHIP R 680K J 1/16W K,K2R260 RK73HB1J473J CHIP R 47K J 1/16W M,M2,ER260 RK73HB1J473J CHIP R 47K J 1/16W E3

R260,261 RK73HB1J473J CHIP R 47K J 1/16W K,K2R263 RK73HB1J103J CHIP R 10K J 1/16WR264 R92-1368-05 CHIP R 0 OHM M,M2,ER264 R92-1368-05 CHIP R 0 OHM E3R271 RK73HB1J120J CHIP R 12 J 1/16W

R272 RK73HB1J472J CHIP R 4.7K J 1/16WR273 RK73HB1J102J CHIP R 1.0K J 1/16WR275-277 RK73HB1J473J CHIP R 47K J 1/16WR282,283 R92-1368-05 CHIP R 0 OHMR285,286 R92-1368-05 CHIP R 0 OHM

R290,291 R92-1368-05 CHIP R 0 OHMR310 RK73HB1J392J CHIP R 3.9K J 1/16WR312 RK73HB1J472J CHIP R 4.7K J 1/16WR313 RK73HB1J332J CHIP R 3.3K J 1/16WR318 RK73HB1J102J CHIP R 1.0K J 1/16W

R323 RK73HB1J472J CHIP R 4.7K J 1/16WR324,325 RK73HB1J473J CHIP R 47K J 1/16WR326 R92-1368-05 CHIP R 0 OHMR328 RK73HB1J474J CHIP R 470K J 1/16WR330 RK73HB1J471J CHIP R 470 J 1/16W

R332 RK73FB2A150J CHIP R 15 J 1/10WR335 RK73HB1J102J CHIP R 1.0K J 1/16WR336 RK73HB1J221J CHIP R 220 J 1/16WR337 RK73HB1J471J CHIP R 470 J 1/16WR341 R92-1368-05 CHIP R 0 OHM

R342,343 R92-1252-05 CHIP R 0 OHM J 1/16WR344 RK73HB1J104J CHIP R 100K J 1/16W K,K2R345 R92-1252-05 CHIP R 0 OHM J 1/16WR346 RK73HB1J680J CHIP R 68 J 1/16WR347 RK73HB1J101J CHIP R 100 J 1/16W

R348 RK73HB1J221J CHIP R 220 J 1/16WR349 R92-1368-05 CHIP R 0 OHMR351 RK73HB1J221J CHIP R 220 J 1/16WR353 RK73HB1J333J CHIP R 33K J 1/16WR354 R92-1368-05 CHIP R 0 OHM

VR1 ∗ R32-0686-05 SEMI FIXED VARIABLE RESISTOR(500K)VR5 R32-0668-05 SEMI FIXED VARIABLE RESISTOR(50K)VR6 R32-0658-05 SEMI FIXED VARIABLE RESISTOR(100K)

S7 ∗ S70-0485-05 TACT SWITCH (PTT)


22



Newparts


MIC1 T91-0580-05 MIC ELEMENT

D1,2 1SV325 VARIABLE CAPACITANCE DIODED5 HSC277 DIODED6 1SV305 VARIABLE CAPACITANCE DIODED7 MA2S111 DIODED8,9 HSC277 DIODE

D10 XB15A709 DIODED12,13 HVC131 DIODED14 MA2S111 DIODED15 MA8039 ZENER DIODED16 MA2S111 DIODE

D17 HSM88AS DIODED18-21 1SV305 VARIABLE CAPACITANCE DIODED22 1SS361 DIODED24 MA742 DIODED25 MA2S111 DIODE

D26 1SS388 DIODED27 RB706F-40 DIODED30 RB521S-30 DIODED31 DA221 DIODED32,33 RB051L-40 DIODE

D34 ∗ MAZS0270H ZENER DIODED35,36 RB521S-30 DIODED60 MA2S111 DIODE ED62 MA2S111 DIODE E,E3D62-65 MA2S111 DIODE K,K2

D63-65 MA2S111 DIODE M,M2D64,65 MA2S111 DIODE E,E3D69-73 MA2S111 DIODED74 DA221 DIODED79 DA221 DIODE

D80 RB521S-30 DIODEIC1 LMX2316TMX MOS ICIC2 NJM2904V MOS ICIC3 TA31136FN MOS ICIC4 ∗ XC6202PB52FR MOS IC

IC5 NJM2107F MOS ICIC6 TA7368F MOS ICIC8 ∗ 90522BPFFG139 MPUIC9 ∗ TK11250CM MOS ICIC10 ∗ S-80844CNNBB85 MOS IC

IC11 ∗ S-80930CNNBG80 MOS ICIC12 ∗ TK11250CUCB MOS ICIC15 AT25160N10SI27 ROM ICIC16 NJM2904V MOS ICIC17 NJM2902V MOS IC

Q1 2SC5066(O) TRANSISTORQ2 ∗ 2SC5488 TRANSISTORQ3 2SK1830 FETQ4 2SC4617(R) TRANSISTORQ5,6 ∗ 2SC5488 TRANSISTOR

Q9 ∗ 2SC5488 TRANSISTORQ10 2SC4926YD TRANSISTORQ11 2SK2596 FETQ12 2SK3476 FETQ13 2SK1830 FET

Q14 ∗ RN4902 TRANSISTORQ15 2SC4617(R) TRANSISTORQ16 3SK318 FET

Q17 2SK1215(E) FETQ20 2SK1830 FETQ21 2SC4617(R) TRANSISTORQ22 ∗ RN2105 TRANSISTORQ23 KTC4082 TRANSISTOR

Q24 ∗ 2SC5488 TRANSISTORQ27 2SK1830 FETQ29 2SC4919 TRANSISTORQ30 2SC4617(R) TRANSISTORQ31 2SK1830 FET

Q33 2SB1184(Q,R) TRANSISTORQ34,35 2SK1830 FETQ36 2SJ347 FETQ37 2SB1184(Q,R) TRANSISTORQ38 2SC4617(R) TRANSISTOR

Q41 ∗ RN2105 TRANSISTORQ47 RN1701 TRANSISTORQ50 2SK1830 FETQ51 ∗ RN4902 TRANSISTORQ52 ∗ RN1107 TRANSISTOR

Q53 RN2701 TRANSISTORQ55 ∗ CPH3317 FETQ56 ∗ CPH3417 FETQ57 ∗ RN2105 TRANSISTORQ58 2SK1830 FET M,M2,E

Q58 2SK1830 FET E3Q58,59 2SK1830 FET K,K2TH1 ∗ B57331V2103J THERMISTORTH3,4 B57331V2104J THERMISTOR

TH-K2AT/K2E/K2ET

23

EXPLODED VIEW (TH-K2AT / K2ET)

Parts with the exploded numbers larger than 700 are not supplied.

A B

1

2

3

3

7C

B34

35

6

40

16D

DD

29

10

8

9

15

191817

36

37

D

TX-RX Unit (B/3)

TX-RX Unit (C/3)

TX-RX Unit (A/3)

Dx2D

D EEx2D

Dx2

D

2333

39

28

14

22

Ax2

1321

E

E

54

12702. STANDARD LABEL : K, K2

701. STICKER

Fx2

1 (K2, M2)

Gx2

A : N09-1492-05B : N14-0569-04C : N14-0573-04D : N79-2035-46E : N79-2040-45F : N82-2007-46G : N09-2433-05

31

45

TH-K2AT/K2E/K2ET

24 Parts with the exploded numbers larger than 700 are not supplied.

EXPLODED VIEW (TH-K2E)C D

1

2

3

2

7C

B34

35

6

40

16D

DD

29

10

8

9

15

191817

38

37

D

TX-RX Unit (B/3)

TX-RX Unit (C/3)

TX-RX Unit (A/3)

DD D

2333

39

28

14

22

1321

E

E

54

12

A : N09-1492-05B : N14-0569-04C : N14-0573-04D : N79-2035-46E : N79-2040-45F : N82-2007-46G : N09-2433-05

31

Dx2EEx2

D

Dx2

Ax2

701. STICKER

Fx2

Gx2

45

TH-K2AT/K2E/K2ET

25

E F

1

2

3

704. PAMPHLET

11.INSTRUCTION MANUAL(B62-1696-00)(B62-1697-00):K,E,E3(B62-1699-00):E,E3(B62-1702-00):E,E3(B62-1757-00):E,E3(B62-1758-00):E,E3

41.HELICAL ANTENNA(T90-1018-25)

43.CHARGER (120V/13.8V)(W08-0960-15) : K

42.CHARGER (230V/13.8V)(W08-0959-15) : M, E, E3

30. BELT HOOK ASSY(J29-0709-04)

32.HANDSTRAP(J69-0342-05): M, E, E3

24.ITEM CARTON CASE(H52-1960-02):K,M(H52-1961-02):E(H52-1962-02):E3

706. UK PLUG ATTACHMENT: E, E3

26.PACKING FIXTURE(H12-3146-01)

705. WARRANTY CARD : K, E, E3

PACKING (K, M, E and E3 types)


703. PAMPHLET (R & TTE) : E, E3

44.BATTERY ASSY(7.2V/1100mAh)(W09-0991-05)

TH-K2AT/K2E/K2ET

26

PACKING (K2 and M2 types)


G H

1

2

3

11.INSTRUCTION MANUAL(B62-1695-00):M2(B62-1696-00)(B62-1697-00):K2

704. PAMPHLET

25.ITEM CARTON CASE(H52-2009-02)41.HELICAL ANTENNA

(T90-1018-25)

32.HANDSTRAP(J69-0342-05) : M2

27.PACKING FIXTURE(H12-3147-03)

30.BELT HOOK ASSY(J29-0709-04)

705. WARRANTY CARD : K2

1.CABINET ASSY(BATTERY CASE)(A02-3817-02)

TH-K2AT/K2E/K2ET

27

ADJUSTMENT

Single Tone Mode

This mode is used to check the DTMF deviation.

Operation

16key (K, K2, M, M2 and E3 types)

1. Press the [PTT] key on the transceiver to switch to thetransmission mode.

2. Press the [MONI] key to enter the single tone mode.3. Press any key from [1] to [8] keys to transmit a single tone.

The single tone is consisting of eight frequencies.[1] 697Hz[2] 770Hz[3] 852Hz[4] 941Hz[5] 1209Hz[6] 1336Hz[7] 1477Hz[8] 1633Hz

4. When the [MONI] key is pressed again during thetransmission, the transceiver switches to the receptionmode, the single tone mode turns OFF.

4key (E type)

1. Press the [PTT] key on the transceiver to switch to thetransmission mode.

2. Press the [MONI] key to enter the single tone mode.3. When the [VFO] key is pressed during the transmission, a

DTMF “D” dual tone (combination of 1633 Hz and 941 Hzfrequencies) is transmitted.

4. When the [MR] key is pressed during the transmission,single-tone 1633 Hz is transmitted.

5. When the [MONI] key is pressed again during thetransmission, the transceiver switch to the reception mode,the single tone mode is turned OFF.

• The single tone mode can be enabled only during thetransmission.

• When DTMF memory is transmitted in the single tonemode, the single tone mode turns OFF.

Adjustment Mode

This mode is used to replace or readjust the IC15 (EEPROM).Adjust the following adjustment items after setting the

transceiver to “Adjustment Mode”.

Adjustment Items

A. Overvoltage warning reference voltage (14.8V [DC IN])B. Battery terminal reference voltage (7.5 V [Battery terminal])C. Squelch (SQL1, SQL2)D. S-meter (Two segments in S-meter light, all segments in S-

meter light)E. RX BPF (Lower limit frequency, center frequency, upper

limit frequency)F. 7.5V TX H power (Lower limit frequency, center frequency,

upper limit frequency)

G. 7.5V TX M power (Lower limit frequency, center frequency,upper limit frequency)

H. 7.5V TX L power (Lower limit frequency, center frequency,upper limit frequency)

I. 13.8V TX H power (Lower limit frequency, center frequency,upper limit frequency)

J. 13.8V TX M power (Lower limit frequency, center frequency,upper limit frequency)

K. 13.8V TX L power (Lower limit frequency, center frequency,upper limit frequency)

L. DCS modulation balanceM.Tone deviation (Lower limit frequency, center frequency,

upper limit frequency)N. DCS deviation (Lower limit frequency, center frequency,

upper limit frequency)O. VOX sensitivity (Level 1, level 9)

Operation in Adjustment Mode

1. Turn the transceiver ON.2. Set the tone frequency to 151.4 Hz and the DCS code to

023 in Menu Mode to adjust tone and DCS modulation.3. Set Adjustment Mode by shorting two lands (SET) on the

component side of the TX-RX unit (A/3).

4. When the Adjustment Mode is set, the “Overvoltagewarning reference voltage (14.8V [DC IN])” adjustment itemis displayed. (The “ ” icon on the upper side of the LCDblinks while the transceiver is in the Adjustment Mode.)The current adjustment value is displayed at the lower digitsof the frequency display, and the value stored in theEEPROM is displayed on the memory channel numberdisplay.

5. The functions of transceiver keys in Adjustment Mode areas follows:

Short these two lands

SET

Adjustment item

Blink

The value stored in theEEPROM. (00-FE)

Current adjustmentvalue (00-FE)

TH-K2AT/K2E/K2ET

28

6. To exit the Adjustment Mode, turn the transceiver OFF.Note:

• When you press [LAMP] or [MONI] key, ensure the bossesof rubber keys align with the LAMP and MONI contacts ofthe PTT PCB (C/3).

• In the Adjustment Mode, Transmission and Receptionfrequencies becomes extensive.

A. Overvoltage warning reference voltage (14.8V [DC IN])

(1) Press the [LAMP] or [MONI] key on the transceiver to display“DC” on the LCD.The current voltage value is displayed at the lower digits ofthe frequency display, and the value stored in the EEPROMis displayed on the memory channel number display.

(2) Press the [MENU] key to write the current voltage valueinto the EEPROM.

B. Battery terminal reference voltage (7.5 V [Battery

terminal])

(1) Press the [LAMP] or [MONI] key on the transceiver to display“BAT” on the LCD.Press the [F] key and then the [PTT] key repeatedly to turnthe “ ” icon ON. The current voltage value is displayed atthe lower digits of the frequency display, and the valuestored in the EEPROM is displayed on the memory channelnumber display.

(2) Press the [PTT] key to enable the transmit mode.(3) Adjust the output voltage from DC power supply until the

voltage at the battery terminal becomes 7.5V while thetransceiver is transmitting.

(4) Press the [MENU] key to write the current voltage valueinto the EEPROM.

C. Squelch (SQL1, SQL2)

1Squelch (SQL1)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“SQ1” on the LCD.The detected DC voltage value to the current noise level isdisplayed at the lower digits of the frequency display, andthe value stored in the EEPROM is displayed on the memorychannel number display.

(2) Press the [MENU] key to write the current noise level valueinto the EEPROM.

2Squelch (SQL2)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“SQ2” on the LCD.

(2) Press the [MENU] key to write the current noise level valueinto the EEPROM.

Key name

PTT

LAMP

MONI

MENU

F

VFO

MR

CALL

Encoder

ADJUSTMENT

[key]

Transmit while this key is held down.Changes adjustment items. (Forward)When this key is pressed on the frequency display, it switches to the adjustment display.Changes adjustment items. (Back)When this key is pressed on the frequency display, it switches to the adjustment display.Write adjustment values (adjustment display)Sound error tone (frequency display)Function mode/MHz mode ONVFO modeWhen this key is pressed on the adjustment display, it switches to the frequency display.Memory modeWhen this key is pressed on the adjustment display, it switches to the frequency display.Switch between frequency display and adjustment display.Each time this key is pressed, the LCD switches between the frequency display andadjustment display.Increase or decrease adjustment values (00 - FE). (adjustment display)Increase or decrease frequency and memory channel number. (frequency display)

[F] key → [key]

Selecting a TX power (High/Mid/Low)

Lamp always ON

Squelch level setting mode

-

Function mode/MHz mode OFF

M→V (Memory shift)

M.IN (Memory registration)

-

Increase or decrease frequency (1MHzstep). (frequency display)

TH-K2AT/K2E/K2ET

29

D. S-meter (Two segments in S-meter light, all segments

in S-meter light)

1S-meter (Two segments in S-meter light)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“S1” on the LCD.The current RSSI level value is displayed at the lower digitsof the frequency display, and the value stored in theEEPROM is displayed on the memory channel numberdisplay.

(2) Press the [MENU] key to write the current RSSI level valueinto the EEPROM.

2S-meter (All segments in S-meter light)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“S9” on the LCD.

(2) Press the [MENU] key to write the current RSSI level valueinto the EEPROM.

E. RX BPF (Lower limit frequency, center frequency, upper

limit frequency)

1RX BPF (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“BPL” on the LCD.The current BPF tuning value is displayed at the lower digitsof the frequency display, and the value stored in theEEPROM is displayed on the memory channel numberdisplay.

(2) Press the [VFO], [MR] or [CALL] key to switch to thefrequency display.

(3) Turn the encoder to display the lower limit frequency onthe LCD.

(4) Press the [CALL] key to switch to the adjustment display.(5) Turn the encoder to change the current BPF tuning value

and adjust RX BPF.(6) Press the [MENU] key to write the current BPF tuning value

into the EEPROM.

2RX BPF (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“BPC” on the LCD.


(3) Turn the encoder to display the center frequency on theLCD.

(4) Repeat steps (4) to (6) of “1RX BPF (Lower limitfrequency)” described on page 29.

3RX BPF (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“BPH” on the LCD.


(3) Turn the encoder to display the upper frequency on theLCD.

(4) Repeat steps (4) to (6) of “1RX BPF (Lower limitfrequency)” described on page 29.

F. 7.5V TX H power (Lower limit frequency, center

frequency, upper limit frequency)

17.5V TX H power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P7L” on the LCD.In this case, the “ ” icon appears.The current APC value is displayed at the lower digits ofthe frequency display, and the value stored in the EEPROMis displayed on the memory channel number display.



(4) Press the [CALL] key to switch to the adjustment display.(5) Press the [PTT] key to enable the transmit mode.(6) Adjust the output voltage from DC power supply until the


(7) Turn the encoder to change the current APC value and adjustthe transmission power.

ADJUSTMENT

TH-K2AT/K2E/K2ET

30

(8) Press the [MENU] key to write the current APC value intothe EEPROM.

27.5V TX H power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P7C” on the LCD.In this case, the “ ” icon appears.



(4) Repeat steps (4) to (8) of ”17.5V TX H power (Lower limitfrequency)” described on page 29.

37.5V TX H power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P7H” on the LCD.In this case, the “ ” icon appears.


(3) Turn the encoder to display the upper limit frequency onthe LCD.

(4) Repeat steps (4) to (8) of ”17.5V TX H power (Lower limitfrequency)” described on page 29.

G. 7.5V TX M power (Lower limit frequency, center


17.5V TX M power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display




(4) Press the [CALL] key to switch to the adjustment display.

(5) Press the [PTT] key to enable the transmit mode.(6) Adjust the output voltage from DC power supply until the




27.5V TX M power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display




(4) Repeat steps (4) to (8) of ”17.5V TX M power (Lower limitfrequency)” described on page 30.

37.5VTX M power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display



(3) Turn the encoder to display upper limit frequency on theLCD.

(4) Repeat steps (4) to (8) of ”17.5V TX M power (Lower limitfrequency)” described on page 30.

H. 7.5V TX L power (Lower limit frequency, center


17.5V TX L power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display


ADJUSTMENT

TH-K2AT/K2E/K2ET

31



(4) Press the [CALL] key to switch to the adjustment display.(5) Press the [PTT] key to enable the transmit mode.(6) Adjust the output voltage from DC power supply until the




27.5V TX L power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display




(4) Repeat steps (4) to (8) of ”17.5V TX L power (Lower limitfrequency)” described on page 30.

37.5V TX L power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display





I. 13.8V TX H power (Lower limit frequency, center


113.8V TX H power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P13L” on the LCD.In this case, the “ ” icon appears.

The current APC value is displayed at the lower digits ofthe frequency display, and the value stored in the EEPROMis displayed on the memory channel number display.



(4) Press the [CALL] key to switch to the adjustment display.(5) Press the [PTT] key to enable the transmit mode.(6) Turn the encoder to change the current APC value and adjust

the transmission power.(7) Press the [MENU] key to write the current APC value into

the EEPROM.

213.8V TX H power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display



(3) Turn the encoder to display center frequency on the LCD.(4) Repeat steps (4) to (7) of ”113.8V TX H power (Lower

limit frequency)” described on page 31.

313.8V TX H power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display



(3) Turn the encoder to display upper limit frequency on theLCD.

(4) Repeat steps (4) to (7) of ”113.8V TX H power (Lowerlimit frequency)” described on page 31.

ADJUSTMENT

TH-K2AT/K2E/K2ET

32

J. 13.8V TX M power (Lower limit frequency, center


113.8V TX M power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P13L” on the LCD. In this case, the “ ” icon appears.The current APC value is displayed at the lower digits ofthe frequency display, and the value stored in the EEPROMis displayed on the memory channel number display.



(4) Press the [CALL] key to switch to the adjustment display.(5) Press the [PTT] key to enable the transmit mode.(6) Turn the encoder to change the current APC value and adjust

the transmission power.(7) Press the [MENU] key to write the current APC value into

the EEPROM.

213.8V TX M power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P13C” on the LCD. In this case, the “ ” icon appears.



(4) Repeat steps (4) to (7) of “113.8V TX M power (Lowerlimit frequency)” described on page 31.

313.8V TX M power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P13H” on the LCD. In this case, the “ ” icon appears.



(4) Repeat steps (4) to (7) of “113.8V TX M power (Lowerlimit frequency)” described on page 32.

K. 13.8V TX L power (Lower limit frequency, center


113.8V TX L power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P13L” on the LCD. In this case, the “ ” icon appears.The current APC value is displayed at the lower digits ofthe frequency display, and the value stored in the EEPROMis displayed on the memory channel number display.



(4) Press the [CALL] key to switch to the adjustment display.(5) Press the [PTT] key to enable transmit mode.(6) Turn the encoder to change the current APC value and adjust

transmission power.(7) Press the [MENU] key to write the current APC value into

the EEPROM.

213.8V TX L power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display





313.8V TX L power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display


ADJUSTMENT

TH-K2AT/K2E/K2ET

33




L. DCS modulation balance

(1) Press the [LAMP] or [MONI] key on the transceiver to display“DCS.BAL” on the LCD. Press the [F] key and then the[PTT] key repeatedly to turns the “ ” icon ON.

(2) When the [PTT] key is pressed to enable transmit mode, a100Hz square waveform is internally generated andmodulated.

(3) While observing the waveforms on the oscilloscope, turnthe semi-fixed volume (VR6) to adjust the DCS modulationwaveform to a square waveform.

(4) When the DCS modulation waveform becomes a squarewaveform, release the [PTT] key.

M.Tone deviation (Lower limit frequency, center


1Tone deviation (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVL” on the LCD.In this case, the “ ” icon appears. Press the [F] key andthen the [PTT] key repeatedly to turn the “ ” icon ON.The current adjustment value is displayed at the lower digitsof the frequency display, and the value stored in theEEPROM is displayed on the memory channel numberdisplay.



(4) Press the [CALL] key to switch to the adjustment display.(5) When the [PTT] key is pressed to enable transmit mode, a

preset tone frequency (151.4Hz) is internally generated andmodulated.

(6) Turn the encoder to change the current adjustment valueand adjust tone deviation.

(7) Press the [MENU] key to write the current adjustment valueinto the EEPROM.

2Tone deviation (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVC” on the LCD.In this case, the “ ” icon appears. Press the [F] key andthen the [PTT] key repeatedly to turn the “ ” icon ON.



(4) Repeat steps (4) to (7) of ”1Tone deviation (Lower limitfrequency)” described on page 33.

3Tone deviation (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVH” on the LCD.In this case, the “ ” icon appears. Press the [F] key andthen the [PTT] key repeatedly to turn the “ ” icon ON.



(4) Repeat steps (4) to (7) of ”1Tone deviation (Lower limitfrequency)” described on page 33.

N. DCS deviation (Lower limit frequency, center frequency,

upper limit frequency)

1DCS deviation (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVL” on the LCD.In this case, the “ ” icon appears. Press the [F] key andthen the [PTT] key repeatedly to turn the “ ” icon ON.The current adjustment value is displayed at the lower digitsof the frequency display, and the value stored in theEEPROM is displayed on the memory channel numberdisplay.



ADJUSTMENT

TH-K2AT/K2E/K2ET

34

ADJUSTMENT

(4) Press the [CALL] key to switch to the adjustment display.(5) When the [PTT] key is pressed to enable transmit mode, a

preset DCS code (023) is internally generated andmodulated.

(6) Turn the encoder to change the current adjustment valueand adjust DCS deviation.

(7) Press the [MENU] key to write the current adjustment valueinto the EEPROM.

2DCS deviation (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVC” on the LCD.In this case, the “ ” icon appears.



(4) Repeat steps (4) to (7) of ”1DCS deviation (Lower limitfrequency)” described on page 33.

3DCS deviation (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVH” on the LCD.In this case, the “ ” icon appears.



(4) Repeat steps (4) to (7) of ”1DCS deviation (Lower limitfrequency)” described on page 33.

O. VOX sensitivity (Level 1, level 9)

1VOX sensitivity (Level 1)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“VOX1” on the LCD.Press the [F] key and then the [PTT] key repeatedly to turnthe “ ” icon ON.The current microphone input level value is displayed atthe lower digits of the frequency display, and the valuestored in the EEPROM is displayed on the memory channelnumber display.

(2) Input a specified AG signal to microphone input.(3) Press the [MENU] key to write the current microphone input

level value into the EEPROM.

2VOX sensitivity (Level 9)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“VOX9” on the LCD.(2) Input a specified AG signal to microphone input.(3) Press the [MENU] key to write the current microphone input

level value into the EEPROM.

TH-K2AT/K2E/K2ET

35

ADJUSTMENT

1.Setting and Connect the optional PG-2W LCD total illumination display Initial configuration displayed afterresetting DC cable to the power supply. the full-reset.

DC IN terminal voltage: 13.8V1) Total illumination display

confirmationTurn the Transceiver Power ON by pressing the power switch while the [F] key is pressed.While the [F] key is pressed, all LCD segments light.

2) Full-resettingAfter confirming that all LCD segments have lighted described in the Step 1 above, releasethe [F] key, and then press the [F] key twice while “FL.RST?” appears on the display.

2 VCO After removing 3 screws fixingLock voltage the TX-RX unit (B/3), removeCheck the TX-RX (B/3) unit from the

CN9 connector of the TX-RXunit (A/3).1) Frequency: 136.000MHz DVM TX-RX LV Check 0.7V or more

RX 2) Frequency: 173.990MHz (A/3) 4.3V or less TX TX power: Low

1) Frequency: 136.000MHz 0.7V or morePTT: ON

2) Frequency: 173.990MHz 4.3V or lessPTT: ONAfter observing the VCOlock voltage, connect theTX-RX unit (B/3) to theoriginal position.

3.TX frequency 1) TX power: Low f. counter ANT TX-RX VR1 145.990MHz ±150HzAdjust Frequency: 145.990MHz (A/3)

PTT: ON4.Overvoltage Switch to Adjustment mode

warning and carry out the operationsreference for adjustment item A.voltage (Refer to page 28)Adjust/Check 1) LCD display: DC DC power supply [MENU] Write

Frequency: 145.050MHz(E, E3)

Frequency: 146.050MHz(K, K2, M, M2)

DC IN terminal voltage: 14.8VTo exit from the AdjustmentMode, turn the transceiverpower OFF and then ON.2) Frequency: 145.050MHz Check Alarm sound and

(E, E3) display “DC ERR”Frequency: 146.050MHz message.

(K, K2, M, M2)DC IN terminal voltage: 17.5V

Common Section

Item ConditionMeasurement Adjustment Specifications/

Test equipment Unit Terminal Unit Parts Method Remarks

TH-K2AT/K2E/K2ET

36

ADJUSTMENT

Receiver section



1.RX BPF Squelch level: 0 Adjust 1) Frequency: 145.050MHz SSG TX-RX ANT VOL Turn the VOL knob 0.63V

(E, E3) Oscilloscope (A/3) SP knob to obtain 0.63V AFFrequency: 146.050MHz Distortion meter output.

(K, K2, M, M2) AF V.MSSG output: –53dBm (501 uV) Dummy loadSSG MOD: 1kHzSSG DEV: 3kHz

Switch to Adjustment modeand carry out the operationsfor adjustment item E.(Refer to page 29)2) LCD display: BPL Encoder Write Max Sensitivity

Frequency: 136.050MHz [MENU]SSG: –119dBm (0.25 uV)

3) SSG: –113dBm (0.501 uV) Check 12dB SINAD ormore

4) LCD display: BPC Encoder Write Max SensitivityFrequency: 146.050MHz [MENU]SSG: –119dBm (0.25 uV)

5) SSG: –120dBm (0.22 uV) Check 12dB SINAD ormore

6) LCD display: BPH Encoder Write Max SensitivityFrequency: 160.050MHz [MENU]SSG: –119dBm (0.25 uV)

7) SSG: –113dBm (0.501uV) Check 12dB SINAD ormore

2.IF response 1) Frequency : 144.050MHz SSG Check 12dB SINAD orCheck SSG Frequency: 221.750MHz Oscilloscope less

SSG output: –60dBm (224uV) Distortion meter Note: If theSSG MOD: 1kHz specification is notSSG DEV: 3kHz satisfied, repeat theAF output: 0.63V/8Ω operations for

“1. RX BPFAdjust”.

3.Squelch / Switch to Adjustment mode SSG ANTS-meter and carry out the operationsWrite for adjustment item C.

(Refer to page 28)1) LCD display: SQ1 [MENU] Write Note: In the

Frequency: 145.050MHz Squelch adjust(E, E3) ments, all 4

Frequency: 146.050MHz adjusting points(K, K2, M, M2) including the S-

SSG: –125dBm (0.126uV) meter must be2) LCD display: SQ2 [MENU] Write adjusted.

Frequency: 145.050MHz

Squelch(E, E3)


SSG: –120dBm (0.22uV)

TH-K2AT/K2E/K2ET

37

ADJUSTMENT



Switch to Adjustment modeand carry out the operationsfor adjustment item D.(Refer to page 29)

S-meter 3) LCD display: S1 SSG TX-RX ANT [MENU] WriteFrequency: 145.050MHz (A/3)

(E, E3)Frequency: 146.050MHz

(K, K2, M, M2)SSG: –120dBm (0.22uV)

4) LCD display: S9 [MENU] WriteFrequency: 145.050MHz


(K, K2, M, M2)SSG: –105dBm (1.26uV)

4.Squelch Squelch level: 1 Check 1) Frequency: 145.050MHz SSG Check Open Squelch

(E, E3) OscilloscopeFrequency: 146.050MHz Distortion meter

(K, K2, M, M2)SSG output: –123dBm (0.158uV)SSG MOD: 1kHzSSG DEV: 3kHz

2) SSG: OFF Close Squelch5.S-meter 1) Frequency: 145.050MHz SSG Check Two segments

Check (E, E3) in S-meterFrequency: 146.050MHz light.

(K, K2, M, M2)

SSG output: –120dBm (0.22uV)2) SSG output: –105dBm (1.26uV) All segments in

S-meter light.

6.Hum and 1) Frequency: 145.050MHz SSG TX-RX ANTnoise ratio (E, E3) Oscilloscope (A/3) SPCheck Frequency: 146.050MHz Distortion meter

(K, K2, M, M2) AF V.MSSG output: –53dBm (501uV)SSG MOD: 1kHzSSG DEV: 3kHzAF Output: 0.63V/8ΩAF V.M = 0dB

2) SSG DEV: OFF Check –38dB or less7.AF distortion 1) Frequency: 145.050MHz Check 5% or less

Check (E, E3)Frequency: 146.050MHz

(K, K2, M, M2)SSG output: –53dBm (501uV)SSG MOD: 1kHzSSG DEV: 3kHzAF Output: 0.63V/8Ω

TH-K2AT/K2E/K2ET

38

ADJUSTMENT



8.AF output 1) Frequency: 145.050MHz SSG TX-RX ANT Check 400mW or moreCheck (E, E3) Oscilloscope (A/3) SP

Frequency: 146.050MHz Distortion meter(K, K2, M, M2) AF V.M

SSG output: –53dBm (501uV)SSG MOD: 1kHzSSG DEV: 3kHzAF distortion: 10%

9.Current Squelch level: 5Drain 1) Frequency: 145.050MHz SSG Check 80mA or lessCheck (E, E3) Am meter


SSG output: OFF2) Frequency: 145.050MHz 400mA or less


(K, K2, M, M2)SSG output: –53dBm (501uV)SSG MOD: 1kHzSSG DEV: 3kHzVOL knob: Max

Transmitter section



1.TX powerWrite (Batteryterminal: 7.5V)

High power

Mid power

Battery terminal voltage:7.5V

Switch to Adjustment modeand carry out the operationsfor adjustment item F.(Refer to page 29)1)LCD display: P7L,

Frequency: 144.000MHzPTT: ON

2)LCD display: P7C, Frequency: 145.000MHzPTT: ON

3) LCD display: P7H, Frequency: 145.995MHz PTT: ONSwitch to Adjustment modeand carry out the operationsfor adjustment item G.(Refer to page 30)4)LCD display: P7L,


5) LCD display: P7C, Frequency: 145.000MHz PTT: ON

DC power supplyDVM

Power meterAm meter

TX-RX(A/3)

BGND

ANT Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Write

Write

Write

Write

Write

Note: Do notuse the DC INterminal.

4.8W ±0.05W2.0A or less

1.5W ±0.05W1.4A or less

Note: Adjust the output voltage from DC power supply until the voltage at the battery terminal be-comes 7.5V while the transceiver is transmitting.

TH-K2AT/K2E/K2ET

39

ADJUSTMENT



Mid power

Low power

2.TX powerWrite (DC INterminal: 13.8V)

High power

Mid power

Low power

6) LCD display: P7H, Frequency: 145.995MHz PTT: ONSwitch to Adjustment modeand carryout the operationsfor adjustment item H.(Refer to page 30)7)LCD display: P7L,



9)LCD display: P7H, Frequency: 145.995MHzPTT: ON

Connect the optional PG-2WDC cable to the power supply.DC IN terminal voltage: 13.8VSwitch to Adjustment modeand carry out the operationsfor adjustment item I.(Refer to page 31)1)LCD display: P13L,



3)LCD display: P13H, Frequency: 145.995MHz PTT: ONSwitch to Adjustment modeand carry out the operationsfor adjustment item J.(Refer to page 31)4)LCD display: P13L,



6)LCD display: P13H, Frequency: 145.995MHzPTT: ON

Switch to Adjustment modeand carry out the operationsfor adjustment item K.(Refer to page 32)7) LCD display: P13L, Frequency: 144.000MHz PTT: ON

Power meterAm meter

DC power supplyDVM

Power meterAm meter

TX-RX(A/3)

TX-RX(A/3)

ANT

DC IN

ANT

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Write

Write

Write

Write

Write

Write

Write

Write

Write

Write

Write

0.5W ±0.05W0.8A or less

5.0W - 5.1W2.0A or less

1.5W ±0.05W1.4A or less

0.5W ±0.05W0.8A or less

TH-K2AT/K2E/K2ET

40

ANT

ANT

ANTMIC

Encoder[MENU]

Encoder[MENU]

[MENU]LCD

LCD

VR6

VR5

Write

Write

WriteCheck

Check

By tuning theVR6, adjustthe modulationwave untilif becomes thesquare wave.4.2kHzAccording to thelarger +, –.

0.5W ±0.05W0.8A or less

All segmentsare lighted.

4 to 6 seg-ments arelighted. ~

±0.1kHz



Low power

3.BatteryterminalreferencevoltageAdjust/Check

4.DCSmodulationbalance

5.MAX DEV

8) LCD display: P13C, Frequency: 145.000MHz PTT: ON9) LCD display: P13H, Frequency: 145.995MHz PTT: ONSwitch to Adjustment modeand carry out the operationsfor adjustment item B.(Refer to page 28)TX power: Low1)LCD display: BAT



PTT: ONBattery terminal voltage: 7.5V

To exit from the AdjustmentMode, turn the transceiverpower OFF and then ON.2)Frequency: 145.000MHz


(K, K2, M, M2)PTT: ONBattery terminal voltage: 6.4V

Switch to Adjustment modeand carry out the operationsfor adjustment item L.(Refer to page 32)Detector: +P, –PHPF: OFF LPF: 3kHzDe-emphasis: OFFTX power: Low1)LCD display: DCS.BAL



PTT: ONTo exit from the AdjustmentMode, turn the transceiverpower OFF and then ON.MIC terminal inputAG: 1kHz/80mVDetector: +P, –PHPF: OFF LPF: 15kHzDe-emphasis: OFFTX power: Low

Power meterAm meter

DC power supplyDVM

Linear detectorOscilloscope

Linear detectorAGOscilloscope

TX-RX(A/3)

TX-RX(A/3)

ADJUSTMENT

(Adjust the output voltage from DC power supply until the voltage at thebattery terminal becomes 7.5V while the transceiver is transmitting.)

(Adjust the output voltage from DC power supply until the voltage at thebattery terminal becomes 6.4V while the transceiver is transmitting.)

TH-K2AT/K2E/K2ET

41



6.MICsensitivity

Check

7.Tonedeviation

8.DCSdeviation

1)Frequency: 145.000MHz(E, E3)


PTT: O NMIC terminal inputAG: 1kHzDetector: P-P/2HPF: OFFLPF: 15kHzDe-emphasis: OFFTX power: Low1)Frequency: 145.000MHz


(K, K2, M, M2)PTT: ON

Switch to Adjustment modeand carry out the operationsfor adjustment item M.(Refer to page 33)Detector: P-P/2HPF: OFFLPF: 3kHzDe-emphasis: OFFTX power: Low1)LCD display: DVL,


2)LCD display: DVC, Frequency: 145.000MHzPTT: ON

3)LCD display: DVH, Frequency: 145.990MHz PTT: ONSwitch to Adjustment modeand carry out the operationsfor adjustment item N.(Refer to page 33)Detector: +P HOLDHPF: OFFLPF: 3kHzDe-emphasis: OFFTX power: Low1)LCD display: DVL,


2)LCD display: DVC, Frequency: 145.000MHzPTT: ON

3)LCD display: DVH, Frequency: 145.990MHzPTT: ON

Linear detectorAGOscilloscope

Linear detector

TX-RX(A/3)

ANTMIC

ANT

VR5

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

4.2kHzAccording to thelarger +, –.

Change the AGoutput level toobtain 3kHzdeviation.

Write

Write

Write

Write

Write

Write

±0.1kHz

4mV - 12mV

0.8kHz ±50Hz

0.8kHz ±50Hz

ADJUSTMENT

TH-K2AT/K2E/K2ET

42

9.VOXSensitivityWrite

10. VOXOperationCheck

11. DTMFDEVCheck

12. 1750HzTone DEVCheck

(E, E3 typesonly)

13. ProtectionCheck

(DC INterminal: 13.8V)

Switch to Adjustment modeand carry out the operationsfor adjustment item O.(Refer to page 34)TX power: Low1)LCD display: VOX1



AG: 1kHz/80mV2)LCD display: VOX9



AG: 1kHz/1.5mVTo exit from the AdjustmentMode, turn the transceiverpower OFF and then ON.1)Frequency: 145.000MHz


(K, K2, M, M2)VOX Gain: 4AG: OFF

2)AG: 1kHz/100mVDetector: P-P/2HPF: OFFLPF: 15kHzDe-emphasis: OFFTX power: Low

1)Frequency: 145.000MHz(E, E3)


Send DTMF code “D”

Detector: P-P/2HPF: OFFLPF: 15kHzDe-emphasis: OFFTX power: Low1)Frequency: 145.000MHz

(E, E3)Send 1750Hz Tone

TX power: High1)Frequency: 145.000MHz


(K, K2, M, M2)ANT: OPENPTT: ON

AG

Linear detector

Am meter

Write

Write

Check

Check

Check

Check

Does nottransmit.

Transmits.

2.0kHz - 4.2kHz

2.5kHz - 4.5kHz

2.4A or less



MIC

ANT

TX-RX(A/3)

[MENU]

[MENU]

ADJUSTMENT

Note: For details of sending DTMF code “D”,refer to the “Single Tone Mode” on page 27.

TH-K2AT/K2E/K2ET

43

ADJUSTMENT / TERMINAL FUNCTION

Adjustment points

TX-RX unit (A/3)

Component side view

J2DC IN

J3MIC

J4SP

VR1

VR5

VR6

LV

B

LCD

ANT

BTEMP

GND

SET

TX-RX UNIT (A/3)Component side view

CN1 1 GND GND2 Vol-OUT RX audio volume output3 Vol-IN RX audio volume input4 EN2 Encoder 25 GND GND6 EN1 Encoder 1

CN2 1 SPK Internal speaker audio2 SPG Audio ground

CN6, 1 PTT PTTCN7 2 KIN4 Key matrix input

3 KYO2 Key matrix output (MONI key)4 KYO1 Key matrix output (LAMP key)5 BL LCD backlight control6 GND GND

CN8, 1 KIN1 Key matrix inputCN9 2 IM Internal microphone

3 KYO3 Key matrix output4 8M 8V power supply5 KIN4 Key matrix input6 MIG Microphone ground7 LAMP Key illumination control8 GND GND9 KYO0 Key matrix output10 KIN2 Key matrix input11 KYO1 Key matrix output12 KIN0 Key matrix input13 KYO2 Key matrix output14 KIN3 Key matrix input

CN No. Pin No. Pin Name Function

TX-RX UNIT (A/3) : TX-RX↔VOL/ENC

TERMINAL FUNCTION

TX-RX UNIT (A/3) : TX-RX↔Internal speaker

TX-RX UNIT (A/3) : TX-RX↔TX-RX UNIT (B/3) : 10KEY

TX-RX UNIT (A/3) : TX-RX↔TX-RX UNIT (C/3) : PTT

VR1 : TX frequencyVR5 : MAX DEVVR6 : DCS modulation valanceLV : VCO lock voltage terminal

GMC

Downloaded

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C20

C21

C22

C24

R210

C25

R211

C26

R212

C27

R213

R214

R215

R216

R218

C30

C33

C34

C35

C37

C38

C40

C41

C42

C43

C44

C45

R231

C46

C50

C51 C

52

C203

C54

C204

C55

C56

C57

C211 C212

C213

R252

Q12

C66

Q13

Q14

R255

Q15

R257 R

258

R259

C70

R260

Q20

R261

Q21Q22

Q23

C78

Q24

R264

Q27

C85

R272

Q34

Q35

Q36

C1 Q51

Q59

D7

C271

C272

F1F3

XF1

TH1

TH3

D14

D15

D16

R115

R116

R117

R118R119

R120

R122

R123

R124

R125

R126

R127

R128

D31

R323

R324

R131

R132

R133

R134

R135

R137

R330

R332

R140

R141

C105

R142

C106

R143

C107

R144

C108

R145

C109

R146

R147

R148

R149

C110

IC1

C111 IC2

C112

IC3

C113

C114

R344

R151

C115

R152

C116

R153

C117

C

R157

D60

R158

R159

C506

D62

D63

D64

R351

D65

C318

C125

D69

C126

C510

C128

R18

R165

R19

R166

R167

C514

D70

R168

C320

C515

D71

C321

C516

D72

R20

L45

R21

L46

C328

R17

R24

+

+

+

+

+

R171

Q4

Q6

D80

C331

L53

R30

R31

R32

R33

L58

R34

C339

R35

R36

R37

R38

R188

R189

L64

L68

VR1

C349

VR

5

VR6

C350

C351

C161

C356

C166

C167

C168

R58

C169

C170

C171

C172

C173

C174

C175

C176

C180

R70

R71

C182

R72

C183

R74

R75

C186

R76

C187

R77

C188

R78

C189

R79

C190 R80

C191

R81

C192 R82

R83

C193

R84

C194

C195

R85

C196

R86

C197

C198

R90

CN9

X1

CP

1

CP

2

IC17

178 14

LV

BB

TE

MP

GN

D

1

8 9

16

D

G

G

S

S D

+

134 6

DS

G

1

8 9

16 1 13K

YO

2K

YO

1K

YO

0LA

MP

KIN

4K

YO

3K

IN1

KIN

3K

IN0

KIN

2G

ND

MIG

8MIM

142

+

DCS BAL

1

45

8

DS

G

DS G

J2DC IN

FREQ

+

DS

G

MA

X D

EV

SET

134 6

1 5

2 6G

ND

KY

O1

KIN

4

BL

KY

O2

PT

T

CN6

G D

S

S

+

G SD

44

TH-K2AT/K2E/K2ET PC BOARD

TX-RX UNIT (X57-674X-XX) (A/3) Component side view (J72-0883-09 A/3)0-11 : K,K2 0-21 : M,M2 2-71 : E 2-72 : E3

Ref. No. Address

IC1 4D

IC2 8F

IC3 9B

IC6 6M

IC9 9P

IC10 6P

IC11 6Q

IC15 7P

Ref. No. Address

IC17 9J

Q4 4C

Q6 3E

Q12 5J

Q13 7F

Q14 9E

Q15 5E

Q20 10E

Ref. No. Address

Q21 10D

Q22 10D

Q23 6B

Q24 8D

Q27 6H

Q31 6L

Q34 9F

Q35 10F

Ref. No. Address

Q36 10E

Q37 8L

Q38 7K

Q41 9Q

Q47 7S

Q51 4H

Q53 9Q

Q55 5P

Ref. No. Address

Q56 7L

Q57 8Q

Q59 8J

D7 4B

D14 8E

D15 9D

D16 4D

D25 6K

Ref. No. Address

D26 7L

D31 9F

D34 7L

D40 7S

D41 7S

D60 3H

D62 3H

D63 3H

Ref. No. Address

D64 4H

D65 4H

D69 3G

D70 3H

D71 3H

D72 3G

D80 10G

R172

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R217

R223

R224

R226

R227

R236

R237

R238

C203

204

R242

R243

R246 R248

3

R252

12

R260

R261

R263

R264

C85

Q31

R276

Q38

Q41

C246

C247

C248

C249

Q47

C250

C252

C253

C255

C256

Q53

C257

C258

Q55

Q57

Q59

C279

C280

C290

C291TH1

D25

D26

D34

CP

34C

P35

R328

D40

D41

R335

C300

C302

C304

C305

C306

C307

C308

R344

C309

IC6

C118

R349

IC9

R157

R158

C310

C311

R159

C312

C313

C317

R354

C318

C319

C510

R165

R166

R170

L49

–+

R171

C331

R244

L63

C344

C345

C346

C347

C348

C354

C355

C359

C360

R86

R202

R203

IC10R204

IC11

R205

R206

R207

R208

R209

IC17

114

1 5

2 6G

ND

KY

O1

KIN

4

BL

KY

O2

PT

T

CN6

D

S

S

+

G SD

J3MIC

Q37

B

E

C

G

S

D

Q56

G

SD

+

+

POWER

156 10

CN

2IN

T. SP

+

J4SP

1 346

1

23

4

G

S

D

123 4

+

1

4 5

8

IC15

1

34

5

1 345

J72-0883-09 (A/3)

COM3

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

SEG20

SEG21

SEG22

SEG23

SEG24

SEG25

SEG26

SEG27

SEG28

SEG29

SEG30

SEG3136

COM01

COM1

COM2LCD

ANT

45

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4


PC BOARD TH-K2AT/K2E/K2ET

R172

GMC

Downloaded

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R235

R239 C297

R240R241

C206

C207

R253

R254

R256

Q17

C223

C224

C226

C227

C228

C229

Q29

C230

C231

C232

C82

Q30

C235

C236

C237

C88

C238

R275

C89

C239

R277

C90

C240

C91

C241

C92

C242

C93

C94

C95

R282

C96

R283

C97

C98

R285

C99

R286

R290

R291

Q52

C281

C283

C284

C285

C286

C293 C294

C295

C298

C299

TH

4

CN

10

R102

SD

G

R103

R104

CN15

CN

17D10

D12

D13

D17

R110

R111

D20

D21

D22

R310

D24

R312

R313

D27

R318

CP

31

D36

CP32 CP33

R325

R326

C100

C101

L16

L17

L18

L19

L20

L21

L22

L23

C303

R342

R343

IC4

R345C502

C503

C504

C505

C314

C316

R353

L38

R

R162

R

C511

C512

L40

L41

C517

D74

D79R17

C330

R179C332 C335 C336

R180

R181

R182

R183

R186

R185

C152

C153

R190

R191

R192

R193

R194

C158

C159

R195

R196

R197

R198

R199

C160C162

C163

C357

C358

R61

C366

R62

CN1

X3

R200

R201

IC12

1

43

6

1 6E

NC

AG

ND

EN

CB

VO

L INV

OL O

UT

GN

D

+ 1

2

3

4

IC8

3031

1120

90

91

6061

+

15

J72-0883-09 (A/3)

46


TX-RX UNIT (X57-674X-XX) (A/3) Foil side view (J72-0883-09 A/3)0-11 : K,K2 0-21 : M,M2 2-71 : E 2-72 : E3

Ref. No. Address

IC4 10E

IC5 10K

IC8 7E

IC12 6B

IC16 8L

Q1 4P

Q2 3O

Q3 3P

Ref. No. Address

Q5 3N

Q9 4N

Q10 5N

Q11 6M

Q16 4L

Q17 3J

Q29 10J

Q30 8J

Ref. No. Address

Q33 9N

Q52 7G

Q58 6L

D1 3R

D2 3R

D5 2Q

D6 3Q

D8 4M

Ref. No. Address

D9 3M

D10 3G

D12 3G

D13 3G

D17 3F

D18 2L

D19 2K

D20 3I

Ref. No. Address

D21 3H

D22 10J

D24 8I

D27 9J

D30 8N

D32 8M

D33 8N

D35 7N

Ref. No. Address

D36 9D

D73 7N

D74 11I

D79 11I

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C201

C202

C205

C206

C207

C208

C209

C210

C61

C64

Q10

C65

Q11

C67

C218

C68

C69

C219

Q16

Q17

C220

C71

C221

C222

C72

C73

C223

C74

C224

C75

C225

C76

C226

C227

C228

29

Q29

C231

C82

C83

C84

Q30

R271

R273

Q33

C90

C2

C3

C4

C5

C6

C7C

8

C9

D1

D2

Q58

D5

D6

D8

D9

C270

C276

C282

R100

CN

10R

101

R102

SD

G

R103

R104

D18

D19

D27

L1

L2

L3

L5

L6

L8

D30

L9

D32

D33

D35

R130

L10C

D1

L11

L12

L13

L14

L15

L16

R341

L26

L27

L28

5

IC5

L29

R346

R347

R348

C500 C501

R155 R156

C503

CF1

L32

R10

L35

R11

R12

R13

C124

R160

R14

R161

R15

R162

R16

R163

R17

R164

C129

D73

C323

C324

C130

C325

C131

C326

C132

R22

C327

C133

C134C329

C135

Q1

C136

Q2

R173

C137

Q3

C138

R174

R175

Q5

R176

R177

R178

L50

R179

Q9

L54

L55

C141

L56

C142

C338

R180

R181

C145

R182

C147

183

C148

R4R5

R39

R6

R7

R8

R9

R41

L66

C152

R42

C153

R45

R46

R47

R49

C352

C353

R50

R51

R52

R53

R54

C358

R55R56

R59

R60

C366

R62

R64

C177

C178

C179

R88

R91

R92R93

R94

R95

R96

R97

R98

R99

C10

C11

C13

C14

C15

C17C18

C19

1 345

IC16

1

45

8

DSG

1

23

4

1

2 3

4

GSD

E

B

C

+

DSG

LV

B

R169

47

Component side

Foil side


PC BOARD TH-K2AT/K2E/K2ETTX-RX UNIT (X57-674X-XX) (A/3) Foil side view (J72-0883-09 A/3)0-11 : K,K2 0-21 : M,M2 2-71 : E 2-72 : E3

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C20

C21

C22

C24

R210

C25

R211

C26

R212

C27

R213

R214

R215

R216

R217

R218

C30

C33

C34

C35

C37

R223

C38

R224

R226

R227

C40

C41

C42

C43

C44

C45

R231

C46

R236

R237

R238

C50

C51 C

52

C203

C54

C204

C55

R242

C56

R243

C57

R246 R248

C211 C212

C213

R252

Q12

C66

Q13

Q14

R255

Q15

R257 R

258

R259

C70

R260

Q20

R261

Q21Q22

R263

Q23

C78

Q24

R264

Q27

C85

Q31

R272

Q34

Q35

R276

Q36

Q38

Q41

C246

C247

C248

C249

C1

Q47

C250

C252

C253

C255

Q51

C256

Q53

C257

C258

Q55

Q57

Q59

D7

C271

C272

C279

F1F3

C280

C290

C291

XF1

TH1

TH3

D14

D15

D16

R115

R116

R117

R118R119

D25

D26

R120

R122

R123

R124

R125

R126

R127

R128

D31

D34

R323

CP

34

R324

CP

35

R131

R132

R133

R328

R134

R135

R137

D40

D41

R330

R332

R140

R141

C105

R335

R142

C106

R143

C107

R144

C108

R145

C109

R146

R147

R148

C300

R149

C302

C110

C304

IC1

C111

C305

IC2

C112

C306

IC3

C113

C307

C114

C308

R344

C309

R151

C115

R152

IC6

C116

R153

C117

C118

R349

IC9

R157

D60

R158

C310

C311

R159

C506

D62

C312

D63

C313

D64

R351

D65

C317

R354

C318

C319

C125

D69

C126

C510

C128

R18

R165

R19

R166

R167

C514

D70

R168

C320

C515

D71

C321

C516

D72

R20

L45

R21

L46

C328

R170

R24

+

+

+

+

+

L49

–+

R171

Q4

Q6

D80

C331

R244

L53

R30

R31

R32

R33

L58

R34

C339

R35

R36

R37

R38

R188

R189

L63

L64

C344

C345

C346

C347

L68

C348

VR1

C349

VR

5

VR6

C350

C351

C354

C161

C355

C356

C359

C166

C167

C168

R58

C169

C360

C170

C171

C172

C173

C174

C175

C176

C180

R70

R71

C182

R72

C183

R74

R75

C186

R76

C187

R77

C188

R78

C189

R79

C190 R80

C191

R81

C192 R82

R83

C193

R84

C194

C195

R85

C196

R86

C197

C198

R90

CN9

X1

CP

1

CP

2

R202

R203

IC10R204

IC11

R205

R206

R207

R208

R209

IC17

178 14

LV

BB

TE

MP

GN

D

1

8 9

16

D

G

G

S

S D

+

134 6

DS

G

1

8 9

16 1 13K

YO

2K

YO

1K

YO

0LA

MP

KIN

4K

YO

3K

IN1

KIN

3K

IN0

KIN

2G

ND

MIG

8MIM

142

+

DCS BAL

1

45

8

DS

G

DS G

J2DC IN

FREQ

+

DS

G

MA

X D

EV

SET

134 6

1 5

2 6G

ND

KY

O1

KIN

4

BL

KY

O2

PT

T

CN6

G D

S

S

+

G SD

J3MIC

Q37

B

E

C

G

S

D

Q56

G

SD

+

+

POWER

156 10

CN

2IN

T. SP

+

J4SP

1 346

1

23

4

G

S

D

123 4

+

1

4 5

8

IC15

1

34

5

1 345

J72-0883-09 (A/3)

COM3

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

SEG20

SEG21

SEG22

SEG23

SEG24

SEG25

SEG26

SEG27

SEG28

SEG29

SEG30

SEG3136

COM01

COM1

COM2LCD

ANT

44 45


Component side

Foil side





Ref. No. Address

IC1 4D

IC2 8F

IC3 9B

IC6 6M

IC9 9P

IC10 6P

IC11 6Q

IC15 7P

Ref. No. Address

IC17 9J

Q4 4C

Q6 3E

Q12 5J

Q13 7F

Q14 9E

Q15 5E

Q20 10E

Ref. No. Address

Q21 10D

Q22 10D

Q23 6B

Q24 8D

Q27 6H

Q31 6L

Q34 9F

Q35 10F

Ref. No. Address

Q36 10E

Q37 8L

Q38 7K

Q41 9Q

Q47 7S

Q51 4H

Q53 9Q

Q55 5P

Ref. No. Address

Q56 7L

Q57 8Q

Q59 8J

D7 4B

D14 8E

D15 9D

D16 4D

D25 6K

Ref. No. Address

D26 7L

D31 9F

D34 7L

D40 7S

D41 7S

D60 3H

D62 3H

D63 3H

Ref. No. Address

D64 4H

D65 4H

D69 3G

D70 3H

D71 3H

D72 3G

D80 10G

R172

GMC

Downloaded

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R235

R239 C297

C201

C202

R240R241

C205

C206

C207

C208

C209

C210

C61

C64

Q10

C65

Q11

C67

R253

C218

C68

R254

C69

C219

R256

Q16

Q17

C220

C71

C221

C222

C72

C73

C223

C74

C224

C75

C225

C76

C226

C227

C228

C229

Q29

C230

C231

C232

C82

C83

C84

Q30

R271

C235

C236

R273

C237 Q33

C88

C238

R275

C89

C239

R277

C90

C240

C91

C241

C92

C242

C93

C94

C95

R282

C96

R283

C97

C98

R285

C99

R286

C2

C3

C4

C5

C6

C7C

8

C9

R290

R291

Q52

D1

D2

Q58

D5

D6

D8

D9

C270

C276

C281

C282

C283

C284

C285

C286

C293 C294

C295

C298

C299

TH

4

R100

CN

10R

101

R102

SD

G

R103

R104

CN15

CN

17

D10

D12

D13

D17

D18

R110

D19

R111

D20

D21

D22

R310

D24

R312

R313

D27

L1

L2

L3

R318

L5

L6

L8

D30

L9

D32

D33

D35

CP

31

D36

CP32 CP33

R130

R325

R326

L10C

D1

L11

L12

L13

L14

C100

L15

C101

L16

L17

L18

L19

L20

L21

L22

L23

C303

R341

R342

L26

R343

L27

IC4

L28

R345

IC5

L29

R346

R347

R348

C500 C501

R155

C502

R156

C503

C504

C505

CF1

L32

C314

R10

L35

R11

C316

R12

R353

R13

C124

R160

L38

R14

R161

R15

R162

R16

R163

R17

R164

C511

C129

C512

L40

L41

C517

D73

C323

D74

C324

C130

C325

C131

C326

C132

R22

C327

C133

C134

D79

C329

C135

Q1

C136

Q2

R173

C137

Q3

C138

R174

R175

Q5

R176

R177

C330

R178

L50

R179

Q9

C332

L54

C335

L55

C141

C336L56

C142

C338

R180

R181

C145

R182

C147

R183

C148

R4

R186

R185

R5

R39

R6

R7

R8

R9

R41

L66

C152

R42

C153

R190

R191

R45

R192

R46

R193

R47

R194

C158

C159

R195

R49

R196

R197

R198

R199

C352

C353

C160

R50

R51

C162

R52

C163

R53

C357

R54

C358

R55R56

R59

R60

R61

C366

R62

R64

C177

C178

C179

R88

CN1

R91

R92R93

R94

R95

R96

X3

R97

R98

R99

C10

C11

C13

C14

R200

C15

R201

C17C18

C19

IC12

1

43

6

1 6E

NC

AG

ND

EN

CB

VO

L INV

OL O

UT

GN

D

+ 1

2

3

4

IC8

3031

1120

90

91

6061

+

1 345

IC16

1

45

8

DSG

1

23

4

1

2 3

4

GSD

E

B

C

+

DSG

LV

B

J72-0883-09 (A/3)R169

46 47


Component side

Foil side


PC BOARD TH-K2AT/K2E/K2ETTX-RX UNIT (X57-674X-XX) (A/3) Foil side view (J72-0883-09 A/3)0-11 : K,K2 0-21 : M,M2 2-71 : E 2-72 : E3

TX-RX UNIT (X57-674X-XX) (A/3) Foil side view (J72-0883-09 A/3)0-11 : K,K2 0-21 : M,M2 2-71 : E 2-72 : E3

Ref. No. Address

IC4 10E

IC5 10K

IC8 7E

IC12 6B

IC16 8L

Q1 4P

Q2 3O

Q3 3P

Ref. No. Address

Q5 3N

Q9 4N

Q10 5N

Q11 6M

Q16 4L

Q17 3J

Q29 10J

Q30 8J

Ref. No. Address

Q33 9N

Q52 7G

Q58 6L

D1 3R

D2 3R

D5 2Q

D6 3Q

D8 4M

Ref. No. Address

D9 3M

D10 3G

D12 3G

D13 3G

D17 3F

D18 2L

D19 2K

D20 3I

Ref. No. Address

D21 3H

D22 10J

D24 8I

D27 9J

D30 8N

D32 8M

D33 8N

D35 7N

Ref. No. Address

D36 9D

D73 7N

D74 11I

D79 11I

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

*

MIC1

+ –

D42

D43

D44

D46

D47

S7PTT

MENU

1/F 2/VFO 3/MR F/CALL

VFO654

7 8 9 MR

CALL#0

LAMPMONI

J72-0883-09 (B/3)

J72-0883-09 (C/3)

48


Component side

Foil side


TX-RX UNIT (X57-674X-XX) (B,C/3) Component side view (J72-0883-09 B,C/3)0-11 : K,K2 0-21 : M,M2 2-71 : E 2-72 : E3

Ref. No. Address

D42 4D

D43 5D

D44 8D

D46 5G

D47 8G

A B C D E F G H I J

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J72-0883-09 (B/3)

J72-0883-09 (C/3)

R230

C243

+–

Q50

DG

12

14 13

S

D48

D49

R336

R337

CN7

1P

TT

KY

O2

BL

5

2K

IN4

KY

O1

GN

D6

CN8

KIN3KIN0KIN2GNDMIG8MIM

KYO2KYO1KYO0LAMPKIN4

KYO3KIN1

49


Component side

Foil side


TX-RX UNIT (X57-674X-XX) (B,C/3) Foil side view (J72-0883-09 B,C/3)0-11 : K,K2 0-21 : M,M2 2-71 : E 2-72 : E3

Ref. No. Address

Q50 3I

D48 11C

D49 11B

50

TH-K2AT/K2E/K2ET SCHEMATIC DIAGRAM

A B C D E

1

2

3

4

5

6

7

X57-674 1/5

-t

5MS

5R

F1

2.5A

J2 L50D32

RB051L-40

R210 12

D31DA221

R22

6

220

D40

B30

-215

6-05

D41

B30

-215

7-05

R22

7

100

R190

47k

C236

0.01u

C235

0.01u

R191

47k

2SB1184(Q,R)Q37

D34

MA

ZS

0270

H

C246

100u10

R21

7

820

R167

180k

C212

0.012u

R165

820k

C21

1

2200

pR144

0

C228

0.1u

C20

7

0.01

u

C220

4700p

C221

0.01u

R192

470

2SC4617(R)Q30

R156

100k

C201

1200p

D24

MA742

C219

0.047u

2SK1830Q27

2SC4919Q29

C23

01u

R18

527

0kR

181

470

R147

470

R13

7

4.7k

R18

0

39k

R17

9

220k

R14

8

150k

C209 1000p

R15

1

680

R197

100

R15

215

0kR

173

15k

R182

1k

C22

60.

1u

R161

1k

C206

0.015u

R195

100

C229

0.1u

R17

4

560k

R14

0

180k

C195

10u10

R141

18kC

196

6800

p

C19

7

6800

p

R146

18k

R207

1k

R145

4.7k

CN21

2

IC6 TA7368F

1

2

3

4

56NF

7PHASE

8PRE-GND

9PW-GND

10POUT

C25

5

10u1

0R206

15

C253

10u10

C252

100p

L49

R20

5

100

C24

9

1000

p

D26

1SS

388

C24

8

0.1u

2SK1830Q31

C24

7

0.1u

R203

470k

D25

MA2S111

R20

4

180kR20

2

47k

R199

1k

R16

0

4.7k

C205

0.047u

R178

0

C225

1u

IC5NJM2107F

1

2

3 4

5V+

C202

270p

R155

100k

R153

1k

R168

180k

C20

3

120p

R157

330k

R158

330k

C20

4

0.03

3u

R15

9

120k

CN1

1

2

3

4

5

6

C210 0.01u

R16

6

820k

C21

3

4.7u

6.3

C25

6

1000

p

C25

7

1000

p

C258

0.1u

R209

100k

R20

810

F3

0.5A

C198

1u

C25

0

1u

C24

0

1000

p

C2701000p

C27

1

1000

p

C27

9

1000

p

C28

0

1000

p

R257*

R25

8*

R25

9*

R26

0

47k

R26

1*

C23

8

1000

p

C24

1

1000

p

R201

4.7k

C24

2

0.01

u

C23

7

10u1

0

R19

3

1.8k

R224

18k

R223

220k

C23

9

1000

p

2SB1184(Q,R)Q33

2SK1830Q34

R211

470k

D33

RB051L-40

C27

6

1000

p

2SJ347Q36

R27

24.

7k

C27

2

470p

C290

1000p

C291

1000p

C320*

C321*

R17

7

10k

R21

210

k

R21

4

10k

R16

2

180k

R163

560k

R196

10k

R21

6

10k

R200

10k

R194

10k

R21

3

22k

IC17NJM2902V

1

2

3

4V+

5

6

7 8

9

10

11GND

12

13

14

CPH3417Q56

C331

1000p

R21

5

470k

R27

3

1k

2SC4617(R)Q38

Q47

RN

1701

C208

82p

IC16NJM2904V

1

2

3

4GND

5

6

7

8V+

C338

1u

J3

MIC

J4

SP

R324

47k

C33

9

0.04

7u

R330

470

C193

4.7u6.3

R332 15

C349

0.1u

C350*

C35

1

0.01

u

C352

1000p

C353 1000p

R33

5

1k

D27

RB706F-40

TH

3

100k

D30RB521S-30

2SK1830Q35

R17

1

56k

(D) R170

47k(D)

D221SS361

C358

0.047u

VR550k

VR6

100k

R14

2

4.7k

R14

9

47k

R143

470

C23

1

1000

p

C22

3

1000

pC

224

0.1u

R17

6

820k

R175

2.2k

C22

2

0.01

u

D36

RB521S-30

D35

RB521S-30

C28

61u

C28

310

00p

C282 1000p

C2851000p

C284

1000p

C281 1000p

IC4

XC

6202

PB

52F

R

124

GN

D

3

R264*

Q59*

R344*

C51

1* C

512

*

C51

7*

R34

90

D74DA221

D79DA221

C505

0.047u

R35

40

D80RB521S-30

C506

1000p

C23

2

1000

p

C21

8

1000

p

R21

8

0

R19

8

10k

R164

10k(D)

CHARGE SW

DC IN

TX LED BUSY LED

SP MUTE SW

DCS BAL

SPG

AFOSPKREM/TXD

IM

MAX DEV

DT

MF

/175

0

MICPTT

T0

SP

MO

D

VOLOUT

MICMUTESW

WX1050Hz

5MV5MV

VOXDETECTION AMP

DTMF/BEEP/1750/W-ALT

AF AMP/LAMP AVR

8V

5C/5R/5T AVR

5MS

RXD

RE

M

TXD

PTTE

BTEMPCHARGE

VO

LIN

8 OHM

SPG

SPK

BATTERYTERMINAL

5MS

11.5V AVR

RXDPTTE

IM

TXDSPM

MIG

EN

CA

EN

CB

5MS

IM

VO

LOU

T

MIG MICM

NA

R

W/N

TX-RX UNIT (X57-674X-XX)(A/3)

5C/5R/5T AVR

HPF

AF AMP

MIC AMP

CTCSS/DCS/WX FILTER

REM

DTMF/BEEP

WIDE/NARROWCHANGEOVER SW

Q56 OPERATION SWQ31

CONSTANT-CURRENTCIRCUIT

Q33 OPERATION SW

NI-MHTEMPERATUREDETECTION

DC INDETECTION

REVERSECURRENTPREVENTION

D33,35,36

Q36

AVRCONSTANT-VOLTAGE

Q37 OPERATION SWQ38

Q37

TX/BUSYLED SW

WX DETECTION AMP

MIC MUTECONTROL

MIC ALCRECTIFICATION

D27

D24

VOX DETECTIONRECTIFICATION

SP MUTESPEED UP

C246 DISCHARGE

D26

REVERSE CURRENTPREVENTION


LIMITER

D74,79


D80

5T

VO

UT

VS

S

VIN

1

VCC

VIN

RIPPLE

VOLIN

ENCA

NAR

ENCB

MOD

TO

5MS

QT/DQT

ENCBENCA

QT/DQT5R

5T5MS

5C

MOD

TONAR

VOLIN

VOXIN

SIGIN

TONEREM

5MV

RXLED

NOAA

MICM

+B

5MAFAMP

CHARGEBTEMP

BTDETDCDET

+B

RXD

SPMTXD

IMPTTE

MIG

8V

ROTARYENCODER

&VOL KNOB

VOLOUT

VOLIN

ENCB

GND

ENCA

GND

R16

9

100k

(D)

R18

6

68k

-t

C22

7

2.2u

4

R183

33k

TH

4

100k

R35

3

33k

R17

2

10k

13.43V

13.8V

T:0VR:4.89V

11.45V

7.07V13.58V

4.80V

7.07V

3.23V

T:4.92VR:0V

2.08V

T:73mVR:3.39V

T:3.29VR:110mV

T:4.96VR:0V

4.31V

TH-K2AT/K2E/K2ETSCHEMATIC DIAGRAM

F G H I J

X57-674 2/5

C29

5

5p

C29

4

5p

C293

47p

R25

41k

R25

61k

R25

31k

CP313.9k

Q52RN1107

IC8

90522BPFFG139

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

313233343536373839404142434445464748495051525354555657585960

61COM2

62COM3

63VSS

64SEG16

65SEG17

66SEG18

67SEG19

68SEG20

69SEG21

70SEG22

71SEG23

72SEG24

73NC

74NC

75SEG25

76SEG26

77SEG27

78SEG28

79SEG29

80SEG30

81SEG31

82V0

83V1

84V2

85V3

86HST(VCC)

87MD2

88MD1

89MD0

90RESET

91V

SS

92X

0

93X

1

94V

CC

95P

WR

SW

96IN

TU

P

97IN

TD

W

98D

CD

ET

99R

XLE

D

100

BS

FT

101

PLL

EN

102

PLL

LD

103

KIN

0

104

KIN

1

105

KIN

2

106

KIN

3

107

KIN

4

108

TY

PE

109

VU

KE

Y

110

MIC

M

111

NO

AA

112

5R

113

SH

IFT

114

5T

115

KO

UT

0

116

KO

UT

1

117

KO

UT

2

118

KO

UT

3

119

VS

S

120

BT

DE

T

X3

7.98

2MH

z

R27

7

47k

C3320.1u

C3350.1u

C336

0.1u

R282

0

R283

0

R285

0

R28

6

0

CP

321k

CP

331k

CP

341k

CP

351k

R310

3.9k

R313

3.3k

R318

1k

R32

547

k

R32

6

0

R342 0

R343 0

R235

1k

C359

0.1u C3600.1u

R31

2

4.7k

R27

6

47k

R27

5

47k

R32

3

4.7k

LCD (B38-0881-05)

1C

OM

0

2C

OM

1

3C

OM

2

4C

OM

3

5S

EG

0

6S

EG

1

7S

EG

2

8S

EG

3

9S

EG

4

10S

EG

5

11S

EG

6

12S

EG

7

13S

EG

8

14S

EG

9

15S

EG

10

16S

EG

11

17S

EG

12

18S

EG

13

19S

EG

14

20S

EG

15

21S

EG

16

22S

EG

17

23S

EG

18

24S

EG

19

25S

EG

20

26S

EG

21

27S

EG

22

28S

EG

23

29S

EG

24

30S

EG

25

31S

EG

26

32S

EG

27

33S

EG

28

34S

EG

29

35S

EG

30

36S

EG

31

SEG30

SEG31

SEG29

SEG28

SEG27

SEG26

SEG25

SEG24

SEG23

SEG22

SEG21

SEG20

SEG19

SEG18

SEG17

SEG16

COM3

COM2

COM1

COM0

SEG13

SEG12

SEG11

SEG10

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

SEG0

SEG14

SEG15

SE

G26

SE

G25

SE

G28

SE

G30

SE

G27

SE

G31

SE

G29

SE

G24

SE

G19

SE

G16

SE

G18

SE

G22

SE

G23

SE

G17

SE

G21

SE

G20

CO

M1

CO

M2

CO

M0

CO

M3

SE

G4

SE

G2

SE

G1

SE

G6

SE

G3

SE

G5

SE

G7

SE

G10

SE

G8

SE

G11

SE

G0

SE

G9

SE

G13

SE

G12

SE

G14

SE

G15

ENCAENCB

5C/5R/5T AVR 5C/5R/5T AVR

MPU

DTMF/BEEP

BEAT SHIFT SW

SQVSMV

5MV

+B

TEMP

5T

VOLIN

ENCA

NAR

ENCB

MOD

TO

5C5R

5MS

QT/DQT

VOXIN

5MV

TONE

SIGIN

REM

RXLED

NOAA

MICM

+B

AFAMP

BTEMP

TXDMIG

+B

CHARGE

5M

DCDET

PTTE

SPM

IM

RXD

BTDET

8V

SE

G14

SE

G15

VS

S

C0R

1

EN

CA

EN

CB

5MS

DV

CC

DV

SS

DT

MF

/BE

EP

TON

E

AV

CC

AV

RH

AV

RL

AV

SS

RE

M

SIG

INSQ

SM

VO

XIN

TH

ER

M

BAT

T

BT

EM

P

VC

C

CH

AR

GE

LAM

P

AFA

MP

NA

R

CO

M0

CO

M1

CLOCK

DATA

EEPDI

EEPCS

VOX

BPF/APC

KAPC

VCC

AFM

SPM

RXD

TXD

PTTE

PTTI

5C(SAVE)

FINAL

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

AFMKAPC

PLLLD

SMVSQV

CLOCK

5MV

DATA

5T

VOLIN

NAR

MOD

TO

5C5R

5MS

QT/DQT

SHIFT

PLLEN

+B

TEMPFINAL

5M

BATT

5MS SWLAMP

5C SWVOX

5R SW5T SW

PTTI

5M

EEPDI

EEPCS

BPF/APC

MIGIM

+B

5M

8V

VUKEY

KIN3

KOUT0

TYPE

KIN2

KOUT3

KOUT1

KIN1KIN0

KIN4

KOUT2

RESETPWR SW

INT0

ON:4.76V

4.83V



R237 100k

D49

B30-2237-05

R23

1

150

R238 1k

D48

B30-2237-05

R236 1k

D60

R25

2

100k

D62

D63

D65D64

C31

3

0.03

9u

C30

410

00p

R239

1k

R241

330k

C30

7

0.1u

R242

330k

C29

91u

R243

330k

R24

010

0k

C31

8

1000

p

C31

7

1000

p

R25

5

0

C29

810

00p

C30

010

00p

C30

2

1000

p

C30

510

00p

C30

610

00p

C30

8

1000

p

CPH3317Q55

D69

MA

2S11

1

D70

MA

2S11

1

D71

MA

2S11

1

D72

MA

2S11

1

IC15AT25160N10SI27

1CS

2SO

3WP

4GND

5

6

7

8

R26

3

10k

C30

3

150u

6.3

IC11S-80930CNNBG80

1VSS

2VDD

4OUT

3CD

IC10S-80844CNNBB85

12

4V

SS

3N

C

CN61

2

3

4

5

6

CN71

2

3

4

5

6

CN91234567891011121314

R32

8

470k

C34

410

00p

C34

5

1000

pC34

6

1000

p

C347

1000pC348

1000p

C35

4

1000

p

C35

5

0.01

u

S7S70-0485-05

Q51RN4902

Q41RN2105

Q57RN2105

IC12

TK

1125

0CU

CB

1N

P

2G

ND

3C

ON

T4

VIN

6V

OU

T

IC9

TK

1125

0CM

1 2 34

VO

UT

5G

ND

2

6V

IN

C30

91u

C311

0.1u

C31

4

1000

p

C33

0

1000

p

C316

0.1u

C31

9

10u1

0

Q53

RN

2701

C51

5*

C51

6*C

514

*

C24

3

1000

pD

46

B30

-220

5-05

D44

*

CN81234567891011121314

MIC1

D47

*R

230

*

2SK1830Q50

R33

7

470

R33

6

220

D42

B30

-220

5-05

D43

B30

-220

5-05

R248

3.9k

C31

2

0.03

9u

R246

3.9k

C31

0

1u

L63

R244

0

C29

70.

1u

EEPROM

SET

INT0 RESET

BIT

3

MONI

JUM

PE

R

PTT

LAMP

KE

Y

TYPE

BIT

2

BIT

1

BIT

0

PTT BOARD

5.0V AVR

PTT

KIN4

KYO2

KYO1

BL

GND

KIN

3

KY

O2

KIN

0

KY

O1

KIN

2

KY

O0

GN

D

LAM

P

MIG

KIN

4

8M KY

O3

IM KIN

1

5C/5R/5T AVR

5.0V AVR

4.4V VOLTAGE DETECTION 3.3V VOLTAGE DETECTION

5R/5MVSW

10KEY BOARD

TX-RX UNIT(X57-674X-XX)(B/3)

MENU

TX-RX UNIT(X57-674X-XX)(C/3)

5MS SW5C SW

5T SW

LCD LED SW

KEY LED SW

KEYILLUMINATIONLED

D42-44,46,47

D48,49

LCDILLUMINATIONLED

KEY TYPEDETECTION

D60 D62-65

MARKET CODEDETECTION


D69-72

PO

WE

R S

W

BPF/APC

+B

5MS

AFM

PLLLD

KAPCDATA

SMVSQV5MV

CLOCK

QT/DQT

VOLIN

5C5R

MOD

TO

5MS5T

NAR

SHIFT

PLLEN

+B

TEMPFINAL

5M

SI

SCK

HOLD

VCC

BATT

5MS SWLAMP

5C SWVOX

5R SW5T SW

PTTI

5M

EEPDI

EEPCS

BPF/APC

MIGIM

+B

5M

8V

KIN3

KIN0

KIN2KIN1

KIN4TYPE

KOUT3KOUT2KOUT1KOUT0VUKEY

INT0PWR SWRESET

*

7

1/F

4

2/VFO

5

8

0

6

9

#

3/MR

MR

F/CALL

VFO

CALL

* * *

CO

NT

GN

D1

NP

OU

T

VD

D

5T

VOLIN

NAR

MOD

TO

5R

5MS

QT/DQT

SQVSMV

CLOCKDATAKAPCAFM

PLLENPLLLDSHIFT

+B

5C

FINALTEMP

MA

2S11

1

MA

2S11

1

ON:6.90V

4.83V 4.66V

4.92V

4.68V 4.69V

T:4.95VR:0V

T:4.95VR:0V

5.01V

T:0VR:4.90V

ON:4.78V

K L M N O

X57-674 3/5


TH-K2AT/K2E/K2ETSCHEMATIC DIAGRAM

5C

D16

MA2S111

C41

4.7u

6.3

R36 10

R35 120k

C40 0.1u

R30

1.2k

R31

2.2k

C33

0.22

u35

C35

0.1u

35

KTC4082Q23

R132

2.2k

R131 330k

R13

010

0

IC3TA31136FN

123456789 10 11 12 13 14 15 16

C174

180p

R13

5

470k

C17

6

0.1u

C180

120p C191

0.01u2SC5488

Q24

R134390k

R13

3

1k

R1243.3k

C17

2

1800

p

C18

2

0.1u

C13

0.5p(B)

C20

8p

C22

18p

R19 120k

2SC4617(R)Q4

R21

4.7k

D7

MA

2S11

1

C27

10u1

0

R12

5

560

C45

100p

C46

100p

C44

100p

C52

10p

R38

56k

R20 1k

C34

4.7u

6.3

R24

470

C167

0.1u

R11

827

k

2SC4617(R)Q21

C16

8

0.1u

2SK1830Q20

C169

0.068u

C170

0.068u

R116

120k

R12

6

27k

R123

1.8k

C17

1

1000

p

C18

6

24p

C187

2p C18

824

pC

189

1000

p

C19

2

0.01

u

C18

3

0.1u

R128

3.3k

R122

2.7k

R119

1.8k

C50 22p

C51

22p

2SK1830Q3

R6

1k

C54

1000

p

C55

0.01

u

C38

0.01uC

43

0.01

u

R5

100k

C14

1000

p

C15

12p

C17

8

0.01

u

C17

7

22u6

.3

R12

7

47

C11

1000

p

C26

1000

p

C25

1000

p

C30

1000

p

C21

1000

p

C371000p

C42

1000

p

C190

0.01u

CP23.9k

2SC5488Q6

C17

9

0.1u

L812

0n

R12

47

C17

5

22p

C173

180p

L46

560n

CD1450kHz

2SC5488Q5

R18 10

C19

15p

R15

5.6k

C17

C18

R14

R17

3.3k

R16

CF1L72-0968-05

L58

820n

L64

4.7u

C57

10p

R18

847

R8

100k

R18

9

0

C56

1000

p

VR1

500k

C1

0.01

u

C4

1000p

D5

HSC277

C5

0.1u

C6

1000

p

R4

1k

R11 150k

C10

0.01

u

2SC5488Q2

R10 47

L982

n

IC1

LMX

2316

TM

X

123456789

GN

D3

10C

E11

CLK

12D

ATA

13LE

14F

O/L

D15

VC

C2

16V

P

CP

12.

7k

C24

1000p

R117

2.7k (D)

L53 15n

R32

1k

C19

4

0.1u

R120

2.7k

C166

0.01u

L45

560n

L1

10u

D1

1SV325

D2

1SV

325

L2 47n

L610

u

C2

1000p

L3 82n2SC5066(O)

Q1

C8

27p

(G)

C9

27p

(G) R9

270

L5 10u

R13 6.8k

R22

8.2k

C3

3p(B

)

C7

0.5p (B

)D

6

1SV

305

R7

47k

C12

4

0.1u

R11

55.

6k

R37 56k

Q22RN2105

L68

X1

12.8MHz

L77-1931-05

VC

GND

R348

220

C16

1

1000

p

CN15 CN17*

LV

PLL IC

FM IC

450kHz

PLLLDCLOCKDATAPLLEN

2nd L.O.

SHIFT


AF MUTE SW SQ

V

SM

V

5R

SQ FILTER

IF AMP

FREQ

VCO

RF AMPRF AMP

VCO SHIFT CONTROL SW

RIPPLE FILTER

RF AMP

SPEED UP

TRIPLER

AF FILTER

5T+B

AF

MV

OLI

N

5R 5R

5R

KAPC

FINAL

TEMP

BPF/APC

BPF/APC

5T

VOLIN

NAR

MOD

TO

5R

5MS

QT/DQT

SMVSQV

DATACLOCK

AFMKAPC

SHIFT

PLLENPLLLD

+B

5C

FINALTEMP

MO

D

SQ

VS

MV

QT

/DQ

T

NA

R

PLL

EN

5MS

AF

M

SH

IFT

5CP

LLLD

TO

CLO

CK

5R DAT

A

VO

LIN

DAT

A

5R

CLO

CK

PLL

LD5CAF

M

PLL

EN

NA

R

QT

/DQ

T

SM

VS

QV

VO

LIN

BP

F/A

PC

5RNA

RS

MV

SQ

VB

PF

/AP

C

VCO FREQUENCY CONTROL

D1,2

VCO MODULATION

D6

D5

FREQUENCY SHIFT

FLO

CP

O

GN

D1

GN

D2

FIN

FIN

VC

C1

OS

CI

PLL LOCK DETECTION

D16

OUTPUT

VCC

FINAL

KAPC

TEMP

1000

p

1000

p

3.3k

470

OS

CIN

OS

CO

UT

MIX

OU

T

VC

C

IFIN

DE

C

FIL

OU

T

FIL

INA

FO

UT

QU

AD

IFO

UT

RS

SI

N-D

ET

N-R

EC

GN

D

MIX

IN

4.45V

4.63V1.58V

3.63V

4.45V

T:0VR:4.63V

W:111mVN:4.79V

4.76V

0.53V

4.82V

0.72V


X57-674 4/5

P Q R S T


YXWVU

1

2

3

4

5

6

7

-t

C83

0.01

u

C84

0.1u

L13

R53

100

R47

5.6k

D8

HSC277

D9

HSC277

IC2 NJM2904V

1AOUT

A-IN

A+IN4

GND5

8

2 7

3 6

C10

9

1000

p

C11

1

1000

p

R77

150k

(D)

R76 150k (D)

R74100k

(D)

R75

100k(D)

R78

150k

(D)

R79

150k (D)

R80

10k

R81 390k

R82 27

k

R83 56kC110 1000p

R70

0.39 R71

0.39 R72

0.39

R86

5.6k

C136

10p

R91

1k

R46

10k

C128

0.01u

C12

5

1.5p

C12

6

10p

R90330

R45

3.3k

C13

512

p

D15

MA

8039

C11

7

1000

p

C11

3

1000

p

2SK2596Q11

C13

3

0.01

u

R102

0

R55

470

C97

12p

(G)

C99

13p

(G)

C10

124

p

(G)

C96 12p

(G)

R93

47

R94

330

C1592p

(B)

C98 8p

(B)

C88

56p

R85 560

R84

100k

C108

100p

D14

MA

2S11

1

D10

XB15A709

C11

4

1000

p

L19

9T

L16

R97

82k

C69

4p

R56

1k

R58 10

R60

56k C95

12p

(G)

C11

6

10u4

C11

5

1000

p

2SK3476Q12

R51

470

C12

9

11p

C65 18p

C11

8

1000

p

C76

39p

C89

1000p

C93

8p

C100 7p

(B)

R92

3.3k

R54

100

R59

12k

C13

2

0.01

u

Q14RN4902

D12

HV

C13

1

D13

HV

C13

1

3SK318Q16

D18

1SV

305

D19

1SV

305

D20

1SV

305

D21

1SV

305

R50

33

R49

330

C10

7

1000

p

2SK1830Q13

C61

1000

p C64

1000

p

C67

1000

p

C71

1000

p

C75

1000p

C74

33p

C78

1000

p C82

1000

p

C941000p

C162

47p(G)

C16

3

1000

p

C15

3

1000

p

C14

7

1000

p

C13

4

1000

p

C13

0

1000

p

C13

10.

01u

2SC5488Q9

C91

1000

p

R61 220

R62 220

C90

1000

p

R98

82k

R96

82k

R95

100k

C14

1

1000

pL17

18.5n L20

7T

L21

9T

L10

82n

L11

82n

L54

56n

2SK1830Q58

C32

310

00p

C32

5

1000

p

R41

270

R39

270

R271

12

C326

1000p

C32

7

0.1u

C32

8

1u

C329

56p

XF1L71-0619-05

L41

18n

L40

68n

L38

82n

L35

82n

L32

82n

C14

8

22p

(G)

C15

8

22p

(G)

C14

5

22p

(G)

C16

0

27p

(G)

C50

42p

(B)

L66

120n

R10

3

2.7k

R10

147

R10

4

56

2SK1215(E)Q17

L12

10n

L15

6.8n

L55

10n

L56

22n

R64 0

C32

4

1000

p

C10

6

1000

p

C10

5

1000

p

C15

2

1000

p

C5023p

(B)

C5011.5p

(B)

C5001.5p

(B)

R290

0

R88

330

C356 0.01u

C35

71u

L18

220n

TH

1

10k

L14

47n

L27680n

C85

56p

C36

610

0p

C50

310

0p

C73

1000

p

C137

5p

C13

8

1000

p

L29 22nL28

27n

D73

MA

2S11

1

R52

1k

R11

11.

0M

R10

0

1.0M

R99

1.0M

R11

01.

0M

C68

18p

L23

9T

L22

9T

2SC4926YDQ10

R42

100

2SC4617(R)Q15

R33 22

R34

3.3k

C66 1u

R341

0

C142

1000p

C112 1000p

C72

0.1u

C70 1u

C92

1000

p D17

HSM88AS

C51

0*

R345

0

R34

668

R347

100

R35

1

220 L2

6

470n

R291

0

CN10

VDD

APC DIFFERENTIALAMP

DC SWTEMPCOMPENSATION

TX PATH

1st MIXER

1st IF

38.85MHz

VGG

APC

ANT

KAPC

5T

RF AMP

DRIVEAMP DRIVE

AMP

POWERAMP

APC CIRCUITOPERATION SW

APC OUTPUT SW

APC OUTPUTVOLTAGE LIMITTER

Q12 GATEVOLTAGE SW

OVER INPUTPROTECTION

ANTENNA SW

D12,13ANTENNA SW

RX 1st AMP

Q10 OPERATION SW

VOLTAGEDROP

RF SW

RF SW

RX BPF TUNING

D18,19

D20,21

RX BPF TUNING

5T

5T

5T

+B

+B

5R

5R

5R

5T

KAPC

VGG

FINAL

TEMP

BPF/APC

REVERSE CURRENT PREVENTIOND14

B+IN

B-IN

BOUT

V+

TH-K2E

TH-K2AT

TH-K2ET

NO

R230

220

220

R257

56k

NO

NO

0

0

R258

680

R259

0

0

680k

R261

47k

NO

NO

NO

R264

0

0

R344

100k

NO

NO

E23-1081-05

NO

E23-1081-05

CN17

TH-K2AT 220 NO 0 0 NO 0 NO NO

TH-K2AT

TH-K2E

TH-K2ET

TH-K2AT

D44

B30-2205-05

B30-2205-05

NO

B30-2205-05

2-72

0-11

2-71

0-21

2-72

0-11

0-21

2-71

X57-674X-XX

X57-674X-XX

E

K,K2

E3

M,M2

E

M,M2

K,K2

E3

NO

B30-2205-05

B30-2205-05

B30-2205-05

D47 D60

NO

NO

NO

MA2S111

D62

MA2S111

MA2S111

MA2S111

NO

MA2S111

NO

NO

MA2S111

D63

NO

Q59

NO

2SK1830

NO

NO

NO

NO

C321

8200p

NO

C320

NO

NO

8200p

NO

0.1u

NO

C350

NO

NO

C510

100p

100p

NO

NO

NO

C511

470p

470p

C512

470p

470p

NO

NO

NO

NO

C514

470p

470p

NO

NO

470p

C515

470p

470p

470p

C516

NO

NO

470p

NO

470p

C517

NO

T:4.23VR:0V

T:4.85VR:0V

1.30V

12.46V

12.29V

2.00V

1.40V

4.90V

2.29V(HIGH POWER)

4.71V

2.68V

2.42V 4.66V

0.27V

Reference voltage value are measured when the power supply voltage is 13.8V(DC IN).

T:0VR:0V

X57-674 5/5


Note : The components marked with adot ( ) are parts of layer1.

-t

-t

5C

5MS

5R

D16

MA2S111

C41

4.7u

6.3

R36 10

R35 120k

C40 0.1u

R30

1.2k

R31

2.2k

C33

0.22

u35

C35

0.1u

35

KTC4082Q23

R132

2.2k

R131 330k

R13

010

0

C83

0.01

u

C84

0.1u

L13

R53

100

R47

5.6k

D8

HSC277

D9

HSC277

IC2 NJM2904V

1AOUT

A-IN

A+IN4

GND5

8

2 7

3 6

C10

9

1000

p

C11

1

1000

p

R77

150k

(D)

R76 150k (D)

R74100k

(D)

R75

100k(D)

R78

150k

(D)

R79

150k (D)

R80

10k

R81 390k

R82 27

k

R83 56kC110 1000p

R70

0.39 R71

0.39 R72

0.39

R86

5.6k

C136

10p

R91

1k

R46

10k

IC3TA31136FN

123456789 10 11 12 13 14 15 16

C174

180p

R13

5

470k

C17

6

0.1u

C180

120p

C128

0.01u

C191

0.01u

C12

5

1.5p

C12

6

10p

2SC5488Q24

R90330

R134390k

R13

3

1k

R1243.3k

C17

2

1800

p

C18

2

0.1u

C13

0.5p(B)

C20

8p

C22

18p

R19 120k

2SC4617(R)Q4

R21

4.7k

D7

MA

2S11

1

C27

10u1

0

R45

3.3k

C13

512

p

F1

2.5A

D15

MA

8039

C11

7

1000

p

C11

3

1000

p

R12

5

560

2SK2596Q11

C45

100p

C46

100p

C44

100p

C52

10p

R38

56k

R20 1k

C13

3

0.01

u

R102

0

R55

470

C97

12p

(G)

C99

13p

(G)

C10

124

p

(G)

C96 12p

(G)

R93

47

R94

330

C1592p

(B)

C98 8p

(B)

C88

56p

R85 560

R84

100k

C108

100p

D14

MA

2S11

1

D10

XB15A709

C11

4

1000

p

L19

9T

L16

R97

82k

C69

4p

R56

1k

R58 10

R60

56k C95

12p

(G)

C11

6

10u4

C11

5

1000

p

C34

4.7u

6.3

R24

470

2SK3476Q12

J2 L50D32

RB051L-40

R210 12

D31DA221

C29

5

5p

C29

4

5p

C293

47p

R237 100k

D49

B30-2237-05

R23

1

150

R238 1k

R22

6

220

D40

B30

-215

6-05

D41

B30

-215

7-05

D48

B30-2237-05

R22

7

100

R236 1k

R190

47k

C236

0.01u

C235

0.01u

R191

47k

2SB1184(Q,R)Q37

D34

MA

ZS

0270

H

C246

100u10

R21

7

820

C167

0.1u

R11

827

k

2SC4617(R)Q21

R167

180k

C212

0.012u

C16

8

0.1u

R165

820k

2SK1830Q20

C169

0.068u

C170

0.068u

R116

120k

C21

1

2200

p

R144

0

C228

0.1u

C20

7

0.01

u

C220

4700p

C221

0.01u

R192

470

2SC4617(R)Q30

R156

100k

C201

1200p

D24

MA742

C219

0.047u

2SK1830Q27

2SC4919Q29

C23

01u

R18

527

0kR

181

470

R147

470

R13

7

4.7k

R18

0

39k

R17

9

220k

R14

8

150k

C209 1000p

R15

1

680

R197

100

R15

215

0kR

173

15k

R182

1k

C22

60.

1uR161

1k

C206

0.015u

R195

100

C229

0.1u

R17

4

560k

R14

0

180k

C195

10u10

R141

18k

C19

6

6800

p

C19

7

6800

pR146

18k

R207

1k

R145

4.7k

CN21

2

IC6 TA7368F

1

2

3

4

56NF

7PHASE

8PRE-GND

9PW-GND

10POUT

C25

5

10u1

0R206

15

C253

10u10

C252

100p

L49

R20

5

100

C24

9

1000

p

D26

1SS

388

C24

8

0.1u

2SK1830Q31

C24

7

0.1u

R203

470k

D25

MA2S111

R20

4

180kR20

2

47k

R12

6

27k

R123

1.8k

C17

1

1000

p

C18

6

24p

C187

2p C18

824

pC

189

1000

p

C19

2

0.01

u

C18

3

0.1u

R128

3.3k

R199

1k

R16

0

4.7k

C205

0.047u

R178

0

C225

1u

IC5NJM2107F

1

2

3 4

5V+

C202

270p

R155

100k

R153

1k

R168

180k

C20

3

120p

R157

330k

R158

330k

C20

4

0.03

3u

R15

9

120k

CN1

1

2

3

4

5

6

C210 0.01u

R16

6

820k

C21

3

4.7u

6.3

C25

6

1000

p

C25

7

1000

p

C258

0.1u

R209

100k

R20

810

D60

R122

2.7k

R119

1.8k

F3

0.5A

R51

470

C12

9

11p

C198

1u

C25

0

1u

C65 18p

C11

8

1000

p

C76

39p

C89

1000p

C93

8p

C100 7p

(B)

R92

3.3k

R54

100

R59

12k

C50 22p

C51

22p

2SK1830Q3

R6

1k

C13

2

0.01

u

C54

1000

p

C55

0.01

u

C38

0.01u

C43

0.01

u

Q14RN4902

R25

41k

R25

61k

R25

2

100k

D62

D63

D65

R25

31k

D64

D12

HV

C13

1

D13

HV

C13

1

3SK318Q16

D18

1SV

305

D19

1SV

305

D20

1SV

305

D21

1SV

305

C31

3

0.03

9u

R50

33

R49

330

C30

410

00p

R239

1k

R241

330k

C30

7

0.1u

R242

330k

C29

91u

R243

330k

R24

010

0k

C10

7

1000

p

2SK1830Q13

R5

100k

CP313.9k

C14

1000

p

C15

12p

C17

8

0.01

u

C17

7

22u6

.3

R12

7

47

C11

1000

p

C26

1000

p

C25

1000

p

C30

1000

p

C21

1000

p

C371000p

C42

1000

p

C190

0.01u

C61

1000

p C64

1000

p

C67

1000

p

C71

1000

p

C75

1000p

C74

33p

C78

1000

p C82

1000

p

C941000p

C162

47p(G)

C16

3

1000

p

C15

3

1000

p

C14

7

1000

p

C13

4

1000

p

C13

0

1000

p

C13

10.

01u

C24

0

1000

p

C2701000p

C27

1

1000

p

C27

9

1000

p

C28

0

1000

p

C31

8

1000

p

C31

7

1000

p

R257*

R25

8*

R25

9*

R26

0

47k

R26

1*

C23

8

1000

p

C24

1

1000

p

R201

4.7k

C24

2

0.01

u

C23

7

10u1

0

R19

3

1.8k

R224

18k

R223

220k

Q52RN1107

C23

9

1000

p

CP23.9k

R25

5

0

2SC5488Q9

2SC5488Q6

C91

1000

p

R61 220

R62 220

C90

1000

p

R98

82k

R96

82k

R95

100k

C14

1

1000

p

2SB1184(Q,R)Q33

2SK1830Q34

R211

470k

D33

RB051L-40

C27

6

1000

p

2SJ347Q36

R27

24.

7k

C27

2

470p

C290

1000p

C291

1000p

C29

810

00p

C30

010

00p

C30

2

1000

p

C30

510

00p

C30

610

00p

C30

8

1000

p

C320*

C321*

L17

18.5n L20

7T

L21

9T

C17

9

0.1u

L812

0n

R12

47

CPH3317Q55

C17

5

22p

C173

180p

R17

7

10k

R21

210

k

R21

4

10k

R16

2

180k

R163

560k

R196

10k

R21

6

10k

R200

10k

R194

10k

R21

3

22k

D69

MA

2S11

1

D70

MA

2S11

1

D71

MA

2S11

1

D72

MA

2S11

1

IC8

90522BPFFG139

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

313233343536373839404142434445464748495051525354555657585960

61COM2

62COM3

63VSS

64SEG16

65SEG17

66SEG18

67SEG19

68SEG20

69SEG21

70SEG22

71SEG23

72SEG24

73NC

74NC

75SEG25

76SEG26

77SEG27

78SEG28

79SEG29

80SEG30

81SEG31

82V0

83V1

84V2

85V3

86HST(VCC)

87MD2

88MD1

89MD0

90RESET

91V

SS

92X

0

93X

1

94V

CC

95P

WR

SW

96IN

TU

P

97IN

TD

W

98D

CD

ET

99R

XLE

D

100

BS

FT

101

PLL

EN

102

PLL

LD

103

KIN

0

104

KIN

1

105

KIN

2

106

KIN

3

107

KIN

4

108

TY

PE

109

VU

KE

Y

110

MIC

M

111

NO

AA

112

5R

113

SH

IFT

114

5T

115

KO

UT

0

116

KO

UT

1

117

KO

UT

2

118

KO

UT

3

119

VS

S

120

BT

DE

T

X3

7.98

2MH

z

IC15AT25160N10SI27

1CS

2SO

3WP

4GND

5

6

7

8

L10

82n

L11

82n

L54

56n

2SK1830Q58

C32

310

00p

R26

3

10k

C32

5

1000

p

R41

270

R39

270

R271

12

C326

1000p

C32

7

0.1u

C32

8

1u

C329

56p

XF1L71-0619-05

L41

18n

L40

68n

L38

82n

L35

82n

L32

82n

C14

8

22p

(G)

C15

8

22p

(G)

C14

5

22p

(G)

C16

0

27p

(G)

C50

42p

(B)

L66

120n

R10

3

2.7k

R10

147

R10

4

56

IC17NJM2902V

1

2

3

4V+

5

6

7 8

9

10

11GND

12

13

14

CPH3417Q56

C331

1000p

L46

560n

R21

5

470k

R27

3

1k

2SC4617(R)Q38

Q47

RN

1701

C30

3

150u

6.3

IC11S-80930CNNBG80

1VSS

2VDD

4OUT

3CD

IC10S-80844CNNBB85

12

4V

SS

3N

C

2SK1215(E)Q17

L12

10n

L15

6.8n

L55

10n

L56

22n

C208

82p

R64 0

IC16NJM2904V

1

2

3

4GND

5

6

7

8V+

CD1450kHz

R27

7

47k

2SC5488Q5

R18 10

C19

15p

R15

5.6k

C17

C18

R14

R17

3.3k

R16

C32

4

1000

p

CN61

2

3

4

5

6

CN71

2

3

4

5

6

C3320.1u

C10

6

1000

p

C10

5

1000

p

CF1L72-0968-05

L58

820n

C15

2

1000

p

C3350.1u

C336

0.1u

R282

0

R283

0

R285

0

R28

6

0

L64

4.7u

C57

10p

R18

847

C338

1u

J3

MIC

J4

SP

C5023p

(B)

C5011.5p

(B)

C5001.5p

(B)

R290

0

CN91234567891011121314CP

321k

CP

331k

CP

341k

CP

351k

R310

3.9k

R313

3.3k

R318

1k

R8

100k

R18

9

0

R324

47k

C33

9

0.04

7u

R32

547

k

R32

6

0

R342 0

R343 0

R32

8

470k

R330

470

C193

4.7u6.3

C56

1000

p

R332 15

C34

410

00p

C34

5

1000

pC34

6

1000

p

C347

1000pC348

1000p

R88

330

C349

0.1u

C350*

C35

1

0.01

u

C352

1000p

C353 1000p

R33

5

1k

C35

4

1000

p

C35

5

0.01

u

C356 0.01u

C35

71u

L18

220n

R235

1k

VR1

500k

D27

RB706F-40

C359

0.1u C3600.1u

C1

0.01

u

C4

1000p

D5

HSC277

C5

0.1u

C6

1000

p

R4

1k

R11 150k

C10

0.01

u

2SC5488Q2

R10 47

S7S70-0485-05

TH

3

100k

TH

1

10k

L982

n

L14

47n

L27680n

C85

56p

C36

610

0p

C50

310

0p

C73

1000

p

C137

5p

C13

8

1000

p

L29 22nL28

27n

D73

MA

2S11

1

IC1

LMX

2316

TM

X

123456789

GN

D3

10C

E11

CLK

12D

ATA

13LE

14F

O/L

D15

VC

C2

16V

P

CP

12.

7k

C24

1000p

D30RB521S-30

2SK1830Q35

R52

1k

R11

11.

0M

R10

0

1.0M

R99

1.0M

R11

01.

0M

R117

2.7k (D)

R17

1

56k

(D) R170

47k(D)

L53 15n

C68

18p

D221SS361

L23

9T

L22

9T

R32

1kC358

0.047u

VR550k

VR6

100k

R14

2

4.7k

R14

9

47k

R143

470

Q51RN4902

C19

4

0.1u

R120

2.7k

C166

0.01u

L45

560n

2SC4926YDQ10

R42

100

2SC4617(R)Q15

R33 22

R34

3.3k

C66 1u

L1

10u

D1

1SV325

D2

1SV

325

L2 47n

L610

u

C2

1000p

L3 82n2SC5066(O)

Q1

C8

27p

(G)

C9

27p

(G) R9

270

L5 10u

R13 6.8k

R22

8.2k

C3

3p(B

)

C7

0.5p (B

)D

6

1SV

305

R7

47k

R341

0

C142

1000p

C112 1000p

C72

0.1u

C70 1u

C23

1

1000

p

C12

4

0.1u

C22

3

1000

pC

224

0.1u

R17

6

820k

R175

2.2k

C22

2

0.01

u

R11

55.

6k

R37 56k

C92

1000

p D17

HSM88AS

R31

2

4.7k

Q41RN2105

Q57RN2105

IC12

TK

1125

0CU

CB

1N

P

2G

ND

3C

ON

T4

VIN

6V

OU

T

IC9

TK

1125

0CM

1 2 34

VO

UT

5G

ND

2

6V

IN

C30

91u

C311

0.1u

C31

4

1000

p

C33

0

1000

p

C316

0.1u

C31

9

10u1

0

D36

RB521S-30

D35

RB521S-30

C28

61u

C28

310

00p

C282 1000p

C2851000p

C284

1000p

C281 1000p

R27

6

47k

R27

5

47k

Q53

RN

2701

IC4

XC

6202

PB

52F

R

124

GN

D

3

R264*

Q59*

R344*

Q22RN2105

C51

0*

C51

5*

C51

6*

C51

1* C

512

*

C51

7*

L68

R345

0

X1

12.8MHz

L77-1931-05

VC

GND

R34

668

R347

100

R348

220

R34

90

D74DA221

D79DA221

C505

0.047u

R35

1

220 L2

6

470n

R35

40

D80RB521S-30

C506

1000p

R32

3

4.7k

C23

2

1000

p

C21

8

1000

p

C16

1

1000

p

R291

0

R21

8

0

CN10

C51

4*

CN15 CN17*

LCD (B38-0881-05)

1C

OM

0

2C

OM

1

3C

OM

2

4C

OM

3

5S

EG

0

6S

EG

1

7S

EG

2

8S

EG

3

9S

EG

4

10S

EG

5

11S

EG

6

12S

EG

7

13S

EG

8

14S

EG

9

15S

EG

10

16S

EG

11

17S

EG

12

18S

EG

13

19S

EG

14

20S

EG

15

21S

EG

16

22S

EG

17

23S

EG

18

24S

EG

19

25S

EG

20

26S

EG

21

27S

EG

22

28S

EG

23

29S

EG

24

30S

EG

25

31S

EG

26

32S

EG

27

33S

EG

28

34S

EG

29

35S

EG

30

36S

EG

31

R19

8

10k

SEG30

SEG31

SEG29

SEG28

SEG27

SEG26

SEG25

SEG24

SEG23

SEG22

SEG21

SEG20

SEG19

SEG18

SEG17

SEG16

COM3

COM2

COM1

COM0

SEG13

SEG12

SEG11

SEG10

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

SEG0

SEG14

SEG15

SE

G26

SE

G25

SE

G28

SE

G30

SE

G27

SE

G31

SE

G29

SE

G24

SE

G19

SE

G16

SE

G18

SE

G22

SE

G23

SE

G17

SE

G21

SE

G20

CO

M1

CO

M2

CO

M0

CO

M3

SE

G4

SE

G2

SE

G1

SE

G6

SE

G3

SE

G5

SE

G7

SE

G10

SE

G8

SE

G11

SE

G0

SE

G9

SE

G13

SE

G12

SE

G14

SE

G15

LV

C24

3

1000

pD

46

B30

-220

5-05

D44

*

CN81234567891011121314

MIC1

D47

*R

230

*

2SK1830Q50

R33

7

470

R33

6

220

D42

B30

-220

5-05

D43

B30

-220

5-05

R248

3.9k

C31

2

0.03

9u

R246

3.9k

C31

0

1u

R164

10k(D)

L63

R244

0

C29

70.

1u

PLL IC

VDD

APC DIFFERENTIALAMP

DC SWTEMPCOMPENSATION

FM IC

TX PATH

1st MIXER

1st IF

38.85MHz

450kHz

VGG

PLLLDCLOCKDATAPLLEN

APC

2nd L.O.

ANT

CHARGE SW

DC IN

TX LED BUSY LED

EEPROM

SP MUTE SW

DCS BAL

SPG

AFOSPKREM/TXD

IM

MAX DEV

DT

MF

/175

0

MICPTT

T0

SP

MO

D

VOLOUT

SHIFT

SET

KAPC

INT0 RESET


AF MUTE SW SQ

V

SM

V

5R

SQ FILTER

IF AMP

MICMUTESW

WX1050Hz

5MV5MV

VOXDETECTION AMP

DTMF/BEEP/1750/W-ALT

5T

AF AMP/LAMP AVR

8V

5C/5R/5T AVR

5MS

BIT

3

RXD

RE

M

TXD

PTTE

BTEMP

MONI

JUM

PE

R

PTT

CHARGE

VO

LIN

LAMP

8 OHM

KE

Y

TYPE

BIT

2

BIT

1

BIT

0

PTT BOARD

FREQ

SPG

SPK

BATTERYTERMINAL

5MS

11.5V AVR

5.0V AVR

RXDPTTE

IM

TXDSPM

MIG

EN

CA

EN

CB

5MS

PTT

KIN4

KYO2

KYO1

BL

GND

KIN

3

KY

O2

KIN

0

KY

O1

KIN

2

KY

O0

GN

D

LAM

P

MIG

KIN

4

8M KY

O3

IM KIN

1

IM

VO

LOU

T

MIG MICM

NA

R

W/N


ENCAENCB

5C/5R/5T AVR 5C/5R/5T AVR 5C/5R/5T AVR 5C/5R/5T AVR

HPF

AF AMP

MPU

5.0V AVR

4.4V VOLTAGE DETECTION 3.3V VOLTAGE DETECTION

5R/5MVSW

MIC AMP

CTCSS/DCS/WX FILTER

VCO

RF AMPRF AMP

VCO SHIFT CONTROL SW

RIPPLE FILTER

RF AMP

RF AMP

DRIVEAMP

10KEY BOARD

TX-RX UNIT(X57-674X-XX)(B/3)

MENU

TX-RX UNIT(X57-674X-XX)(C/3)

REM

DTMF/BEEP DTMF/BEEP

DRIVEAMP

POWERAMP

APC CIRCUITOPERATION SW

APC OUTPUT SW

APC OUTPUTVOLTAGE LIMITTER

Q12 GATEVOLTAGE SW

OVER INPUTPROTECTION

ANTENNA SW

D12,13ANTENNA SWSPEED UP

TRIPLER

RX 1st AMP

Q10 OPERATION SW

VOLTAGEDROP

AF FILTER


Q56 OPERATION SWQ31

CONSTANT-CURRENTCIRCUIT

Q33 OPERATION SW

NI-MHTEMPERATUREDETECTION

DC INDETECTION


D33,35,36

Q36

AVRCONSTANT-VOLTAGE

Q37 OPERATION SWQ38

Q37

5MS SW5C SW

5T SW

BEAT SHIFT SW

LCD LED SW

KEY LED SW

TX/BUSYLED SW

WX DETECTION AMP

RF SW

RF SW

RX BPF TUNING

D18,19

D20,21

RX BPF TUNING

MIC MUTECONTROL

MIC ALCRECTIFICATION

D27

D24

VOX DETECTIONRECTIFICATION

SP MUTESPEED UP

C246 DISCHARGE

D26


KEYILLUMINATIONLED

D42-44,46,47

D48,49

LCDILLUMINATIONLED

KEY TYPEDETECTION

D60 D62-65

MARKET CODEDETECTION


D69-72

5T5T

5T

5T

+B +B

+B

SQVSMV

5MV

AF

MV

OLI

N


+B

5R 5R

5R 5R

5R

5R

5T

PO

WE

R S

W

KAPC KAPC

VGG

LIMITER

D74,79


D80

5T

FINALFINAL

TEMPTEMP

BPF/APCBPF/APC

BPF/APCBPF/APC

TEMP

+B

5MS

VO

UT

VS

S

VIN

1

VCC

VIN

RIPPLE

VOLIN

ENCA

NAR

ENCB

MOD

TO

5MS

QT/DQT

ENCBENCA

QT/DQT5R

5T5MS

5C

MOD

TONAR

VOLIN

5T

VOLIN

ENCA

NAR

ENCB

MOD

TO

5C5R

5MS

QT/DQT

VOXIN

SIGIN

TONEREM

5MV

RXLED

NOAA

VOXIN

5MV

TONE

SIGIN

REM

RXLED

NOAA

MICM

+B

MICM

+B

5MAFAMP

CHARGEBTEMP

BTDETDCDET

+B

RXD

SPMTXD

IMPTTE

MIG

8VAFAMP

BTEMP

TXDMIG

+B

CHARGE

5M

DCDET

PTTE

SPM

IM

RXD

BTDET

8V

SE

G14

SE

G15

VS

S

C0R

1

EN

CA

EN

CB

5MS

DV

CC

DV

SS

DT

MF

/BE

EP

TON

E

AV

CC

AV

RH

AV

RL

AV

SS

RE

M

SIG

INSQ

SM

VO

XIN

TH

ER

M

BAT

T

BT

EM

P

VC

C

CH

AR

GE

LAM

P

AFA

MP

NA

R

CO

M0

CO

M1

CLOCK

DATA

EEPDI

EEPCS

VOX

BPF/APC

KAPC

VCC

AFM

SPM

RXD

TXD

PTTE

PTTI

5C(SAVE)

FINAL

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

AFMKAPC

PLLLD

SMVSQV

CLOCK

5MV

DATA

5T

VOLIN

NAR

MOD

TO

5C5R

5MS

QT/DQT

SHIFT

PLLEN

+B

TEMPFINAL

5M

AFM

PLLLD

KAPCDATA

SMVSQV5MV

CLOCK

QT/DQT

VOLIN

5C5R

MOD

TO

5MS5T

NAR

SHIFT

PLLEN

+B

TEMPFINAL

5M

SI

SCK

HOLD

VCC

BATT

5MS SWLAMP

5C SWVOX

5R SW5T SW

BATT

5MS SWLAMP

5C SWVOX

5R SW5T SW

PTTI

5M

PTTI

5M

EEPDI

EEPCS

BPF/APC

EEPDI

EEPCS

BPF/APC

MIGIM

+B

5M

8V

VUKEY

KIN3

KOUT0

TYPE

KIN2

KOUT3

KOUT1

KIN1KIN0

KIN4

KOUT2

RESETPWR SW

INT0

MIGIM

+B

5M

8V

KIN3

KIN0

KIN2KIN1

KIN4TYPE

KOUT3KOUT2KOUT1KOUT0VUKEY

INT0PWR SWRESET

*

7

1/F

4

2/VFO

5

8

0

6

9

#

3/MR

MR

F/CALL

VFO

CALL

* * *

CO

NT

GN

D1

NP

OU

T

VD

D

5T

VOLIN

NAR

MOD

TO

5R

5MS

QT/DQT

SQVSMV

CLOCKDATAKAPCAFM

PLLENPLLLDSHIFT

+B

5C

FINALTEMP

5T

VOLIN

NAR

MOD

TO

5R

5MS

QT/DQT

SMVSQV

DATACLOCK

AFMKAPC

SHIFT

PLLENPLLLD

+B

5C

FINALTEMP

MO

D

SQ

VS

MV

QT

/DQ

T

NA

R

PLL

EN

5MS

AF

M

SH

IFT

5CP

LLLD

TO

CLO

CK

5R DAT

A

VO

LIN

DAT

A

5R

CLO

CK

PLL

LD5CAF

M

PLL

EN

NA

R

QT

/DQ

T

SM

VS

QV

VO

LIN

BP

F/A

PC

5RNA

RS

MV

SQ

VB

PF

/AP

C

VCO FREQUENCY CONTROL

D1,2

VCO MODULATION

D6

D5

FREQUENCY SHIFT

FLO

CP

O

GN

D1

GN

D2

FIN

FIN

VC

C1

OS

CI

PLL LOCK DETECTION

D16

OUTPUT

VCC

REVERSE CURRENT PREVENTIOND14

B+IN

B-IN

BOUT

V+

ROTARYENCODER

&VOL KNOB

FINAL

KAPC

TEMP

VOLOUT

VOLIN

ENCB

GND

ENCA

GND

R16

9

100k

(D)

R18

6

68k

-t

C22

7

2.2u

4

R183

33k

TH

4

100k

R35

3

33k

TH-K2E

TH-K2AT

TH-K2ET

NO

R230

220

220

R257

56k

NO

NO

0

0

R258

680

R259

0

0

680k

R261

47k

NO

NO

NO

R264

0

0

R344

100k

NO

NO

E23-1081-05

NO

E23-1081-05

CN17

TH-K2AT 220 NO 0 0 NO 0 NO NO

TH-K2AT

TH-K2E

TH-K2ET

TH-K2AT

D44

B30-2205-05

B30-2205-05

NO

B30-2205-05

2-72

0-11

2-71

0-21

2-72

0-11

0-21

2-71

X57-674X-XX

X57-674X-XX

E

K,K2

E3

M,M2

E

M,M2

K,K2

E3

NO

B30-2205-05

B30-2205-05

B30-2205-05

D47 D60

NO

NO

NO

MA2S111

D62

MA2S111

MA2S111

MA2S111

NO

MA2S111

NO

NO

MA2S111

D63

NO

Q59

NO

2SK1830

NO

NO

NO

NO

C321

8200p

NO

C320

NO

NO

8200p

NO

0.1u

NO

C350

NO

NO

C510

100p

100p

NO

NO

NO

C511

470p

470p

C512

470p

470p

NO

NO

NO

NO

C514

470p

470p

NO

NO

470p

C515

470p

470p

470p

C516

NO

NO

470p

NO

470p

C517

NO

1000

p

1000

p

3.3k

470

MA

2S11

1

MA

2S11

1

OS

CIN

OS

CO

UT

MIX

OU

T

VC

C

IFIN

DE

C

FIL

OU

T

FIL

INA

FO

UT

QU

AD

IFO

UT

RS

SI

N-D

ET

N-R

EC

GN

D

MIX

IN

R17

2

10k

ON:6.90V

4.83V 4.66V

4.92V

4.68V 4.69V

T:4.95VR:0V

T:4.95VR:0V

5.01V

T:0VR:4.90V

4.45V

13.43V

13.8V

T:0VR:4.89V

11.45V

7.07V13.58V

4.80V

7.07V

3.23V

T:4.92VR:0V

2.08V

ON:4.78V

ON:4.76V

T:73mVR:3.39V

T:3.29VR:110mV

4.83V

T:4.23VR:0V

T:4.85VR:0V

1.30V

12.46V

12.29V

2.00V

1.40V

4.90V

2.29V(HIGH POWER)

4.63V1.58V

3.63V

4.45V

T:0VR:4.63V

W:111mVN:4.79V

4.76V

0.53V

4.82V

0.72V

4.71V

2.68V

2.42V 4.66V

0.27V

Reference voltage value are measured when the power supply voltage is 13.8V(DC IN).

T:4.96VR:0V

4.31V

T:0VR:0V

Note :The components marked with adot ( ) are parts of layer1.


GMC

Downloaded

TH-K2AT/K2E/K2ET

55

BPF

Q9

Q11

Q16

Q10

Q12

Q17

BPF

Q24

MIC AMP

vco

ANTFILTER

50Ω

ANT

9.74Vrms

0.84Vrms

-18.68dBm

10.50dBm

4.17dBm

15.17dBm

11.00dBm

24.67dBm

20.83dBm

30.50dBm

AF(1kHz)

RF(145.99MHz)

ANTFILTER

-59.33dBm

-62.50dBm

-31.83dBm

-47.83dBm

vco

-35.83dBm

-17.33dBm

FM IC

IC3

IC6 AMP

RF(145.99MHz)

AF(1kHz)

IF(38.85MHz)

-53.00dBm

0.26Vrms

12.09mVrms

0.66Vrms

0.58Vrms

MIC

ANT

SP

-9.83dBm

IC16

LEVEL DIAGRAM

All

volta

ge le

vels

mus

t be

mea

sure

d at

Hig

h po

wer

tra

nsm

issi

on.

The

RF

and

IF s

ectio

ns a

re m

easu

red

by u

sing

a s

pect

rum

ana

lyze

r.A

fter

set

ting

the

stan

dard

(1 k

Hz,

3 k

Hz

Dev

.) de

viat

ion,

eac

h vo

ltage

of t

he A

F se

ctio

n is

mea

sure

d by

usi

ng a

n A

F V

TVM

or

osci

losc

ope.

The

leve

l for

eac

h po

int i

s m

easu

red

with

out r

emov

ing

part

s or

cut

ting

the

patt

ern.

All

volta

ge le

vels

mus

t be

mea

sure

d af

ter

sett

ing

the

AF

outp

ut v

olt-

age

at 0

.58V

rm

s.Th

e R

F an

d IF

sec

tions

are

mea

sure

d by

usi

ng a

spe

ctru

m a

naly

zer.

Eac

h vo

ltage

of

the

AF

sect

ion

is m

easu

red

by u

sing

an

AF

VTV

M o

ros

cilo

scop

e.Th

e le

vel f

or e

ach

poin

t is

mea

sure

d w

ithou

t rem

ovin

g pa

rts

or c

uttin

gth

e pa

tter

n.

Tra

nsm

itte

r S

ecti

on

Rec

eive

r S

ecti

on

TH-K2AT/K2E/K2ET

56

BLOCK DIAGRAM

Q23TCXO

LOOP FILTER

LPF

Q6

D1, D2

Q1

Q3

SHIFT SW

OSC

12.8MHz

D74,D75

IC5

HPF

Q30

VOX AMP

Q29,D22,D27

MIC AGC

IC16

SPLATTER FILTER

LIMITTER AMP

Q27

WIDE/NARR

IC8

MPU

1SV325

2SC5066(O)

2SK1830

KTC4082

2SK18302SC4617(R)2SC49191SS361RB706F-40

NJM2107F NJM2904V

DA221

TRIPLER

2nd Local

INT

S-80844 CNNBB85

IC10

RESET

IC11S-80930CNNBG80

IC15AT25160N

10SI27EEPROM

BEAT SHIFT

Q52RN1107

LCD

1SV305D6

REM,SQ,SM,BATT

DTMF/BEEP,TONE

BPF/APC

SEG0~31COM0~3

RXD,PTTE,PTTI,ENCA,ENCB,PWRSW,KIN0~4,TYPE

AFM,SPM,MICM,KAPC,FINAL,CHARGE,AFAMP,RXLED,BTDET,TXD5MS,5R,5T,5C(SAVE),VOX,KYO0~3,VUKEY

VCC,DVCCAVCC,AVRHHST(VCC),V3RESET

INTUPINTDW

CLOCKDATAEEPCSEEPDI

BSFT

X0

X1

PLLENPLLLDCLOCKDATA

BTEMP

KEY ILLMI

B30-2205-05

D42,43,46D44,47

2SK1830Q50

KEY ILLMI SW

LAMP

PTT

LAMP

MONI

D48,49RN4902

LCD ILLMI SW

Q51B30-2205-05

LCD ILLMI

DCDET

MOD

PTTIKIN4

KYO1KYO2

2SC5488

RF AMP

SIGIN

NAR

X57-674 B/3

NAR5MV

5R

5C

SHIFT

5C

Q47RN1701

TX/BUSYLED SW

TX/RX LED

B30-2156-05D40,41

B30-2157-05

5T

RXLED

5C

D24MA742

VOX DET

VOXIN

5T

5MV

VR1

5MS

VR5

VR6

TONE

TONE

KIN0~3

KYO0~3

VR6

VSS,DVSS,AVSS,AVRL

MICM

DTMF/BEEP

X57-674 C/3

H/L

H/L

D/A

A/D

PWM

X1

SWLIMITTER

PTTE/RXD

5M

X57-674 A/3

NOAA

J3

IC1

PLL IC

LMX2316TMX

GMC

Downloaded

TH-K2AT/K2E/K2ET

57

BLOCK DIAGRAM

J4

Q24

XF1 Q16

Q2 Q5

Q4,D7

LIPPLE FILTER

RF AMP RF AMP

D8, D9 Q9 Q10 Q11 Q12 D10

LPF

FINAL AMP ANT SW

Q58

BIAS SW

DRIVE AMPPRE-DRIVERF AMPTX/RX SW

Q17D18,D19 D20,D21

IC3

CD1

CF1

TA31136FN

FM IC IF AMP

MCF

RF AMPBPF BPF

SP MUTE SWAF AMP

IC6 Q56Q20

AF MUTE SW

Q21

AF FILTER

LPF

WIDE/NARR SW

Q22

Q15

SW

B

IC2

APC AMP

NJM2904V

Q14RN4902

APC SWAPC KILL SW

2SK1830

38.85MHz

3SK318

2SK12151SV305 1SV305

XB15A7092SK34762SK25962SC4926YD

2SC4617(R)

HSC277 2SC54882SC54882SC5488

2SC4617 2SK1830 TA7368FRN2105

SW

Q132SK1830

5T

5T

CPH3417

2SK1830

MUTE SW

Q31

38.4MHz

DE-EMPH

+

-

T

2SC5488

CT/DCS/WXA FILTER

IC17NJM2902V

5C5R

5C

5R

5R5R 5R BPF/APC

B

5R AFM AF AVR

BPF/APC

SPM

TEMP DET

TH1B57331V

2103J

5R

5R

APC V

D14MA2S111

FINAL

DTMF/BEEP

SQ,SM

J2

REM

/TXD

AMP

450kHz

(R)

BATT TERMINAL7.5V Norminal(6.0 - 9.0V)

WXA SW

2SK1824Q59

DC IN13.8V Norminal(12.0 - 16.0V)

RN2701

XC6202PB 52FR

IC1TCXOQ4,5,6D40,41

Q41

D32

D80

5T SW

Q37, Q38

2SK1830

5R

5T

5M

CHARGE SW

RB051L-40

IC6D48,49D42,43,46D47,44

BATT CHARGE

5R SW

TK11250 CUCB

5.0V

TK11250 CM

VR1ENC

AVR

5C SW

PROTECT

CPH3317

2SJ347

Q35

5C

CHARGE

BTDET

Q34

Q9,10,13D8,10TH1IC16Q47

Q57 D33

IC12

AVR

2SB1184(Q,R)2SC4617(R)

IC4

5MS SW

Q55

5MV SW

Q36

RB521S-30

5MV

DC-IN DET

RN2105

AF AMP

2SB1184 (Q,R)

PROTECT5.0V

11.5V

IC3,17D9,14Q16,17Q22,23,24Q59

AF/LAMP AVR

RN2105

Q53

PROTECT

THERM DET

IC5Q30

5MS

2SK1830

B

RB051L-40

Q33

AVR

IC9

ANT SW

D17HSM88AS

HVC131

ANT SW

D12,D13

BPF/APC

(Ktype only)

VR

ANT

D261SS388

D25MA2S111

CN2

B

PROTECT

D36RB521S-30

D35

PROTECT

RB521S-30

PROTECT

D30RB521S-30

TH-K2AT/K2E/K2ET

58

BC-21 (WALL CHARGER) / PB-43N (Ni-MH BATTERY PACK)

BC-21 External View

Rated output voltage ......... DC 13.8V ±5%Rated output current ......... 150mACharging time .................... Approx. 12 hours (PB-43N)

Photo is K type.

BC-21 Specifications

PB-43N External View

PB-43N Schematic diagram

T

Discharge terminal side

Rear charge terminal side

Thermister(DTN-103F3H-SYS)

T

Diode(ERB83-004)

Breaker(BBS80A2Y-01 80˚C)

Breaker(BBS70 A1N-01 70˚C)

(4N) (2N)

Thermister(DTN-103F3H-SYS)

Voltage .......................................... 7.2V (1.2V x 6)Charging current ............................ 1100mAhDimensions (Projections included) ... 58W x 100.8H x 16.8D (mm)Charger and charging time

KSC-24 (Rapid charger) ............. Approx. 60 minutesWeight ........................................... 210g

PB-43N Specifications

TH-K2AT/K2E/K2ET

59

BT-14 (BATTERY CASE) / PG-4Y (PROGRAMMING INTERFACE CABLE) /MCP-1A (MEMORY CONTROL PROGRAM)

BT-14 (6 AA/LR6)

External View

PG-4Y

External View

MCP-1A

• Available free for downloading from the Kenwood website:http://www.kenwood.com/i/products/info/amateur.html

TH-K2AT/K2E/K2ETSPECIFICATIONS

KENWOOD CORPORATION2967-3, Ishikawa-machi, Hachioji-shi, Tokyo 192-8525, Japan

KENWOOD U.S.A. CORPORATIONP.O. BOX 22745, 2201 East Dominguez Street, Long Beach, CA 90801-5745,U.S.A.

KENWOOD ELECTRONICS CANADA INC.6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

KENWOOD ELECTRONICS DEUTSCHLAND GMBHRembrücker Str. 15, 63150 Heusenstamm, Germany

KENWOOD ELECTRONICS BELGIUM N.V.Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium

KENWOOD ELECTRONICS FRANCE S.A.13, Boulevard Ney, 75018 Paris, France

KENWOOD ELECTRONICS U.K. LIMITEDKENWOOD House, Dwight Road, Watford, Herts., WD18 9EB, United Kingdom

KENWOOD ELECTRONICS EUROPE B.V.Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands

KENWOOD ELECTRONICS ITALIA S.p.A.Via G. Sirtori, 7/9 20129 Milano, Italy

KENWOOD IBERICA S.A.Bolivia, 239-08020 Barcelona, Spain

KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.(A.C.N. 001 499 074)16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113, Australia

KENWOOD ELECTRONICS (HONG KONG) LTD.Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road,Kwai Fong, N.T., Hong Kong

KENWOOD ELECTRONICS TECHNOLOGIES(S) PTE LTD.Sales Marketing Division1 Ang Mo Kio Street 63, Singapore 569110

Market code K, K2 M, M2 E E3

Number of memory channels 100 (50) + 9 specialfunction memories 100 (50) + 8 special function memories

Antenna impedance (Connector type) 50 Ω (SMA)

Operating VoltageDC IN Jack DC 12.0 ~ 16.0 V (13.8 V nominal)

Battery terminal DC 6.0 ~ 9.0 V (7.2 V nominal)

Grounding method Negative ground

Current

Transmit with H, 13.8 V (DC IN) 1.8 A or less

Transmit with H, 7.2 V (PB-43N) 2.0 A or less

Transmit with M, 7.2 V (PB-43N) 1.5 A or less

Transmit with L, 7.2 V (PB-43N) 0.8 A or less

Receive (no signal) 100 mA or less

Battery Saver ON (Average) 30 mA or less

Usable temperature range –20° C ~ 60° C (–4° F ~ 140° F)–10° C ~ 60° C (+14° F ~ 140° F) with PB-43N

Frequency stability Within ±5 ppm (–20° C ~ 60° C)

Dimensions (W x H x D Projections not included) 58 x 110 x 28.4 mm / 2 7/16" x 4 6/16" x 1 2/16" with PB-43N58 x 110 x 29.6 mm / 2 7/16" x 4 6/16" x 1 5/32" with BT-14

weight Approx. 320 g / 11.3 oz with PB-43NApprox. 320 g / 11.3 oz with BT-14

Transmission Mode F3E (FM) / F2D (FM)

Frequency range 144 ~ 148 MHz 136 ~ 174 MHz 144 ~ 146 MHz

Output Power

DC-IN jack (13.8 V) H: 5.0 W (approx.) M: 1.5 W (approx.) L: 0.5 W (approx.)

PB-43N (7.2 V) H: 5.0 W (approx.) M: 1.5 W (approx.) L: 0.5 W (approx.)

BT-14 (9.0 V) H: 3.5 W (approx.) M: 1.2 W (approx.) L: 0.3 W (approx.)

Modulation Reactance

Maximum frequency deviation ±5 kHz (FM) / ±2.5 kHz (NFM)

Squrious emissions –60 dB or less (H and M power), –50 dB or less (L power)

Microphone impedance 2 kΩ

Reception Mode F3E (FM) / F2D (FM)

Frequency range 136 ~ 174 MHz 144 ~ 146 MHz

Intermediate Frequency (IF) 1st IF : 38.85 MHz2nd IF : 450kHz

Circuit type Double super - heterodyne

Sensitivity FM (12 dB SINAD)2m amateur radio band: 0.18 µV or less

Squelch Sensitivity 0.13 µV or less (within 2m amateur radio band)

Selectivity –6 dB / 10 kHz or less–40 dB / 28 kHz or less (within 2m amateur radio band)

Audio output (10% distortion) 400 mW or higher (7.2 V, 8 Ω load)

Note: All specifications (General, Transmitter and Receiver) are guaranteed within the amateur radio band.

General TH-K2AT TH-K2E TH-K2ET

Transmitter

Receiver

GMC

Downloaded

Documents

Kenwood - TH-K2AT K2E K2ET Service manual · 2018-02-13 · TH-K2AT/K2E/K2ET 3 DISASSEMBLY FOR REPAIR Soldering the antenna terminal 1. With the shield cover removed from the antenna