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SERVICE MANUAL DUAL BAND FM TRANSCEIVIER

SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

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Page 1: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

SERVICEMANUAL

DUAL BAND FM TRANSCEIVIER

Page 2: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

INTRODUCTION

DANGER

ORDERING PARTS

REPAIR NOTES

This service manual describes the latest service informationfor the IC-T7H DUAL BAND FM TRANSCEIVER at the timeof publication.4 version of the IC-T7H have been designed. This servesmanual cover each versions.

NEVER connect the transceiver to an AC outlet or to a DCpower supply that uses more than 16 V. This will ruin thetranscever.DO NOT expose the transceiver to rain, snow or any liquids.DO NOT reverse the polarities of the power supply whenconnecting the transceiver.DO NOT apply an RF signal of more than 20 dBm (100mW)to the antenna connector. This could damage the transceiv-er’s front end.

Be sure to include the following four points when orderingreplacement parts:

1. 10-digit order numbers2. Component part number and name3. Equipment model name and unit name4. Quantity required

<SAMPLE ORDER>

1110002700 S.IC NJM2904M-T1 IC-T7H 1F UNIT 5pieces8810008750 Screw PH BO 2 x 15 ZK IC-T7H Chassis 10pieces

Addresses are provided on the inside back cover for yourconvenience.

1. Make sure a problem is internal before disassembling the transceiver.2. DO NOT open the transceiver until the transceiver is disconnected from its power source.3. DO NOT force any of the variable components. Turn them slowly and smoothly.4. DO NOT short any circuits or electronic parts. An insulated turning tool MUST be used for all adjustments.5. DO NOT keep power ON for a long time when the transceiver is defective.6. DO NOT transmit power into a signal generator or a sweep generator.7. ALWAYS connect a 40 dB to 50 dB attenuator between the transceiver and a deveiation meter or spectrum analyzer when

using such test equipment.8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver.

To upgrade quality, all electrical or mechanical parts andinternal circuits are subject to change without notice orobligation.

MODEL

IC-T7H

VERSION SYMBOLEurope

ItalySE AsiaU.S.A.

EURITASEA

USA-3

Page 3: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

SECTION 1 SPECIFICATIONS

SECTION 2 INSIDE VIEWS

SECTION 3 DISASSEMBLY INSTRUCTIONS

SECTION 4 CIRCUIT DESCRIPTION4 - 1 RECEIVER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1

4 - 2 TRANSMITTER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 2

4 - 3 PLL CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 3

4 - 4 POWER SUPPLY CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 4

4 - 5 OTHER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 4

4 - 6 PORT ALLOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 5

SECTION 5 ADJUSTMENT PROCEDURES5 - 1 PLL AND TRANSMITTER ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1

5 - 2 RECEIVER ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 3

SECTION 6 PARTS LIST

SECTION 7 MECHANICAL PARTS AND DISASSEMBLY

SECTION 8 SEMI-CONDUCTOR INFORMATION

SECTION 9 BOARD LAYOUTS9 - 1 LOGIC UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 1

9 - 2 2F UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 3

9 - 3 1F UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 5

SECTION 10 BLOCK DIAGRAM

SECTION 11 VOLTAGE DIAGRAM

TABLE OF CONTENTS

Page 4: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

SECTION 1 SPECIFICATIONS

1 - 1

All stated specifications are subject to change without notice or obligation.

Frequencycoverage

Mode

Frequency stability(–30 ˚C to +50 ˚C;+32 ˚F to +122 ˚F)

Tuning steps

Antenna connector

External DC power

High power

Low power

Rated audio

Power saved(at 9.6 V)

Usable temperature range

Dimensions(Projections not included)

Weight

RF output power(at 13.5 V DC)

Modulation system

Max. frequency deviation

External mic.connector

Spurious emissions

Receive system

Intermediate frequencies

Sensitivity

Squelch sensitivity

Selectivity

Spurious and image rejectionratio

Audio output power ( at 13.5 V)

External speaker connector

144 MHz band 430 MHz band

RE

CE

IVE

RT

RA

NS

MIT

TE

RG

EN

ER

AL

Tx: 144 MHz–148 MHz Tx: 430 MHz–450 MHz*2

Rx: 118 MHz–174 MHz*1 Rx: 400 MHz–470 MHz*2

144 MHz–146 MHz 430 MHz–440 MHz

Tx: 140 MHz–148 MHz*1

430 MHz–440 MHzRx: 118 MHz–174 MHz*1

136 MHz–174 MHz*1 400 MHz–470 MHz*3

F3 / F2

± 5 ppm

5, 10, 12.5, 15, 20, 25, 30 or 50 kHz

BNC (50 Ω)

4.5 to 16 V DC

1.6 A (typical) 1.6 A (typical)

0.6 A (typical) 0.7 A (typical)

180 mA (typical) 190 mA (typical)

16 mA (typical) 18 mA (typical)

–10 ˚C to +60 ˚C (+14˚F to +140˚F)

57(W) × 110(H) × 27(D) mm; 21⁄4(W) × 45⁄16(H) × 11⁄16(D) inch (with BP-170)57(W) × 122(H) × 29(D) mm; 21⁄4(W) × 413⁄16(H) × 15⁄32(D) inch (with BP-173/180)

285 g; 10.1 oz (with BP-170 and dry cell batteries)320 g; 10.8 oz (with BP-180)405 g; 10.8 oz (with BP-173)

High: 6.0 W High: 6.0 WLow: 0.5 W Low: 0.5 W

Variable reactance frequency modulation

± 5.0 kHz

3-conductor 2.5 mm (1⁄10 in) (2 kΩ)

Less than 60 dB

Double-conversion super heterodyne

1st: 45.150 MHz, 2nd 450 kHz

Less than 0.16 µV (typical) for 12 dB SINAD

Less than 0.18 µV

More than 7.5 kHz / –60 dB, Less then 15 kHz / –6 dB

More than 60 dB More than 50 dB(More than 50 dB at 1⁄2 IF)

More than 500 mW at 10 % distortion with an 8 Ω load

3-conductor 3.5 mm (1⁄8 in) (8 Ω)

USA-3

Europe

SE Asia

Italy

Cur

rent

dra

in(a

t 13

.5 V

) Tx

Rx

Guaranteed frequency range: *1144 MHz–148 MHz, *2440 MHz–450 MHz, *3430 MHz–440 MHz

Page 5: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

SECTION 2 INSIDE VIEWS

• LOGIC UNIT AND 2F UNIT

2 - 1

• 1F UNIT

CPU system clock(X1: CR534 5.03MHz)

CPU system clock(IC1: M38267M8L-165GP)

Speaker

Initial matrixMicrophone amplifier/lpf(IC2: BA4510F)

UHF band pass filter(FI201: EFCH445MWN)

UHF RF amplifier*(Q201: 2SC4226)

* Located under side of these points

AF power amplifier(IC151: 2SC5226)

VHF RF amplifier*(Q51: 2SC5226)

1st IF filter(FI401: FL244)

2nd IF filter(FI101: CFWM450E)

+3V regulater(IC2: S-81335HG-K)

2F UNIT LOGIC UNIT

CPU system clock(IC1: M38267M8L-165GP)

DUAL VCO board

Power amplifier(Q402: 2SK3075)

PA board

Drive amplifier(Q401: 2SK3074)

Page 6: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

SECTION 3 DISASSEMBLY INSTRUCTIONS

3 - 1

• DISASSEMBLING PANELS1 Unscrew 4 screws, A from the rear panel and 2 screws, B

from the rear plate to separate front and rear panels.2 Unscrew 4 screws, C from the rear plate to remove it.

• REMOVING LOGIC UNIT1 Unscrew 4 screws, D from the LOGIC Unit.2 Unsolder jumper wires from the speaker as shown below.

• REMOVING 2F UNIT1 Unscrew 1 screw, E from the 2F unit.2 Unsolder the point, F, then remove the 2F unit with the

contact base.(Disconnect J1 on reverse side of the 2F unit to remove).

Rear panel

C

Front panel

Rear panel

A

A

B

C

Ground lug

Front panel

SpeakerLOGIC unit

Unsolder

D

D

2F unit

F

E

Rear panel

Contact base

J1

• REMOVING 1F UNIT1 Pull the 2 knobs off and then unscrew the nut.2 Unscrew 3 screws, G and 2 screws, H from the 1F unit.3 Unsolder 2 points, I then remove the 1F unit.

Ground lug

Knob

1F unit

Nut

I

HG

Rear panel

Page 7: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

SECTION 4 CIRCUIT DESCRIPTION

4 - 1

4-1 RECEIVER CIRCUITS4-1-1 DUPLEXER CIRCUIT (1F UNIT)The transceiver has a duplexer (low-pass and high-pass fil-ters) on the first stage from the antenna connector to sepa-rate the signals into VHF and UHF signals. The low-pass fil-ter (L10–L12, C16–C22) for VHF signals and high-pass filter(L1–L3, C1–C5) for UHF signals. The separated signals areapplied to each RF circuit.

4-1-2 VHF ANTENNA SWITCHING CIRCUIT (1F UNIT)

The antenna switching circuit functions as a low-pass filterwhile receiving. However, Its impedance becomes very highwhile transmitting by applying a current to D51 and D52.Thus, transmit signals are blocked from entering the receiv-er circuits. The antenna switching circuit employs a 1/4 λtype diode switching system. The passed signals are thenapplied to the RF amplifier circuit on the 2F unit.

4-1-3 VHF RF CIRCUIT (2F UNIT)The RF circuit amplifies signals within the range of frequen-cy coverage and filters out-of-band signals.

The signals from the antenna switching circuit are applied tothe limitter (D55), and are then passed through the band-pass filter (D52, L53). The filtered signal is applied to the RFamplifiers (Q51, Q52). The amplifier consists of a cascadecircuit. The amplified signals are passed through the nextstage band-pass filter (D53, D54, L54, L55) to suppressunwanted signals. The filtered signals are then applied tothe mixer circuit (Q401).

D53 and D54 track the band-pass filters and are controlledby the PLL lock voltage. These diodes tune the center fre-quency to obtain good image response rejection.

4-1-4 UHF RF CIRCUIT (2F UNIT)The signals from the antenna switching circuit (1F unit;D551, D552, D722–D724 and Q204) are applied to the limit-ter (D201), and are then amplified at the the RF amplifier(Q201). The amplified signals are passed through the band-pass filter (FI201), and are then applied to another RF ampli-fier (Q202). The amplified signals are applied to the 1stmixer circuit (Q401).

Common circuits with VHF band are used later stage fromthe 1st mixer.

4-1-5 1ST MIXER AND 1ST IF CIRCUITS(2F UNIT)

The mixer circuit converts the received signal to a fixed fre-quency of the 1st IF signal with a 1st LO (VCO output) fre-quency. By changing the PLL frequency, only the desiredfrequency will be passed through a crystal filter at the nextstage of the mixer.

The received signals from the VHF or UHF RF circuit aremixed with the 1st LO signal (VCO output signal) at the 1stmixer (Q401) to produce a 45.15 MHz 1st IF signal.

The 1st IF signal is applied to a crystal filter (FI401) to sup-press out-of-band signals. The filtered 1st IF signal is ampli-fied at the IF amplifier (Q101) and is then applied to the 2ndmixer circuit (IC101, pin 16).

4-1-6 2ND IF AND DEMODULATOR CIRCUITS(2F UNIT)

The 2nd mixer circuit converts the 1st IF signal to a 2nd IFsignal. A double superheterodyne system (which convertsreceive signals twice) improves the image rejection ratio andobtains stable receiver gain.

The FM IF IC (IC101) contains the 2nd mixer, 2nd localoscillator, limiter amplifier, S-meter detector and quadraturedetector circuits.

• 2nd IF AND DEMODULATOR CIRCUITS

Mix

er

16

Limiteramp.

2nd IF filter450 kHz

PLL ICIC851

X115.2 MHz

RSSI IC2 TA31136FN13

2nd IF (45.15 MHz)from Q101 (1F unit)

"SD" signal to the CPU pin 3 (Logic unit: IC1)

11109

8 7 5 3 2

17 16

Activefilter

FI101

Noisedetector

FMdetector Noise

comp.

"NOISE" signal to the CPU pin 12 (Logic unit: IC1)

12C107

C115R112

C501

C112

C111

C113R104

L21

AF signal "DETO"to the LOGIC unit

3

Q356

2nd localoscillator

C116R113

R106

L102

R111

R112

"LO" signal from Q852 on the LOGIC unit

1F unit

2F unit

Page 8: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

4 - 2

The 1st IF signal (45.15 MHz) from the IF amplifier (Q101)is applied to the 2nd mixer section of IC101 (pin 16), and ismixed with the 2nd LO signal (45.6 MHZ) for conversion toa 450 kHz 2nd IF signal at the 2nd mixer section.

The 2nd IF signal (450 kHz) from the 2nd mixer section(IC101, pin 3) passes through the ceramic filter (FI101)where unwanted signals are suppressed. It is then amplifiedat the limiter amplifier section (IC101, pin 5) and applied tothe quadrature detector section to demodulate the 2nd IFsignal into AF signals.

AF signals output from IC101 (pin 9) are applied to the AFdrive amplifier (Q12) on the LOGIC unit. The S-meter out-put “SD” signal from IC101 (pin 12) is applied to the CPU(LOGIC unit; IC1, pin 3).

4-1-7 AF AMPLIFIER CIRCUIT (LOGIC UNIT)The AF amplifier circuit, including an AF mute switch, ampli-fies the demodulated signals to drive a speaker.

The demodulated AF signals (“DETO” signals) from the FMIF IC (IC101) on the 2F unit are applied to the drive amplifi-er (Q12, pin 3) via the band-pass filter (C44, C45). Theband-pass filter suppresses subaudible tones and highernoise signal components.

The amplified signals from Q12 (pin 1) pass through the AFmute switch (Q10) and are then applied to the AF volumecontrol on the 1F unit via the “AF” signal line.

4-1-8 AF POWER AMPLIFIER CIRCUIT(2F UNIT)

The AF signals from the AF volume control (“AFV” signals)are amplified at the AF power amplifier IC (IC151, pin4). Theamplified AF signals are applied to the loud speaker via theexternal speaker jack (1F unit; J902).

4-1-9 NOISE SQUELCH UNIT (2F UNIT)A noise squelch circuit cuts out AF signals when no RF sig-nal is received. By detecting noise components in the AFsignals, the squelch circuit switches the AF mute switch.

Some of the noise components in the AF signals from theFM IF IC (IC101, pin 9) are applied to the active filter section(IC101, pins 7 and 8). The variable register (R504) adjuststhe active filter input level.

The active filter section amplifies noise components with fre-quencies of 20 kHz and above. The filtered signals are rec-tified at the noise detector section and converted into“NOlSE” (pulse type) signals at the noise comparator sec-tion. The “NOISE” signal is applied to the CPU (LOGIC unit;IC1, pin 12).

The CPU (LOGIC unit; IC1) detects the signal level from thenumber of the pulses, and outputs an “MM/RM” signal fromIC1 pin 44 on LOGIC unit. This signal controls the AF muteswitch (LOGIC unit; Q10) to cut the AF signal line.

4-2 TRANSMITTER CIRCUITS4-2-1 MICROPHONE AMPLIFIER CIRCUIT

(LOGIC AND 2F UNIT)The microphone amplifier circuit amplifies audio signals with+6 dB/octave pre-emphasis from the microphone to a levelneeded for the modulation circuit.

The AF signals from the built-in condenser microphone(LOGIC unit; MC1), or from the [MIC] Jack (1F unit; J901)via the “EXT MIC” line are applied to the limiter amplifier(LOGIC unit; IC12, pin 3) which has +6 dB/octave pre-emphasis characteristics.The amplified AF signals pass through the splatter filter(IC12, pins 5–7). The filtered signals are applied to frequen-cy deviation pots (2F unit; R308 for VHF, R314 for UHF) andare then applied to the modulation circuit on the DUAL VCOboard.

Q32 on the LOGIC unit is the PTT control circuit and outputsa “High” signal to the CPU when transmitting.

4-2-2 MODULATION CIRCUIT(DUAL VCO BOARD)

The modulation circuit modulates the VCO oscillating signal(RF signal) using the microphone audio signals.

The “VMOD” signals change the reactance of a diode(D304) to modulate the oscillated signal at the VHF-VCO cir-cuit (Q304, Q305 and D303).

The “UMOD” signals are applied to the UHF-VCO circuit viathe “USHIFT” line. The applied signals change the reac-tance of a diode (D302) to modulate the oscillated signal atthe UHF-VCO circuit (Q301, Q302 and D301).

The VCO output is buffer-amplified at Q306 and thenapplied to the band switch (D351 and D352) via the LOamplifiers (Q852 and Q351).

4-2-3 POWER AMPLIFIER CIRCUIT (1F UNIT)Q401 is a drive and Q402 is a power amplifier. They aredesigned to use both VHF and UHF commonly. They pro-vide more than 6 W for VHF and 6 W for UHF with a 13.5 VDC power source via one power amplifier system.

An RF signal from the band switch (D351 and D352) isbuffer-amplified at Q201 (for VHF) or Q701 (for UHF) andthen applied to the drive amplifier (PA board; Q401) via theother band switch (D201 and D701). The applied RF signalfrom the band switch is amplified at a drive amplifier (Q401)and then amplified again at the power amplifier (Q402).

The amplified RF signal is passed through the low-pass fil-ter (VHF) or high-pass filter (UHF), and then applied to theantenna connector via the transmit/receive switching circuit(Q51, D52 and Q202 are for VHF, D551, D552, D722–D724and Q204 are for UHF).

Page 9: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

4 - 3

4-2-4 APC CIRCUIT (1F AND 2F UNITS)The APC circuit stabilizes transmit output power and selectsHIGH and LOW output power. The APC circuit consists ofAPC sensor, APC control (1F unit) and APC set (2F unit) cir-cuits.

The APC sensor circuit (1F unit; R250) detects a driving cur-rent from a drive voltage at the PA board. The detected cur-rent is applied to the ope-amplifier IC (1F unit; IC250, pin 2)in the APC control circuit, and compared with a “PSET” volt-age which is supplied from the APC set circuit (2F unit;IC301). The output voltage from pin 1 of IC250 is applied tothe APC control circuit (1F unit; Q255 base) to control“VGGC” voltage.

The “VGGC” APC control signal is separated for VHF(VGG1) and UHF (VGG2) by resistors. The VGG1 line is forthe APC control signal for the drive amplifier and the VGG2line is for the power amplifier.

Low output power is obtained by changing the “PSET” volt-age coming from pin 1 of IC301 on the 2F unit. The “PSET”voltage is controlled by power set pots (2F unit; R302 forVHF, 2F unit; R304 for UHF) and an “H/L” signal via the CPU(LOGIC unit; IC1, pin 56). A thermistor (R266) controls APCreference voltage (“PREF” voltage) to reduce the outputpower when the temperature is increased.

4-2-5 ANTENNA SWITCHING CIRCUIT(1F UNIT)

The antenna switching circuit applies receive signals to thereceiver circuit and transmit signals to the antenna connec-tor.

(1) VHF ANTENNA SWITCHING CIRCUITWhen transmitting, D51 D52 and D202 are turned ON. Thesignal passes through the low-pass filter (L10–L12,C16–C22) and is then applied to the antenna connector. Thelow-pass filter suppresses high harmonic components.

(2) UHF ANTENNA SWITCHING CIRCUITWhen transmitting, D722-D724, D551, D552 and Q204 areturned ON. The signal passes through the low-pass (L7–L9,C9–C15) and high-pass (L1–L3, C1–C5) filters and is thenapplied to the antenna connector. The high-pass filter sup-presses low harmonic components.

4-3 PLL CIRCUITS4-3-1 VHF PLL CIRCUIT (1F UNIT)The oscillated signal at the VCO circuit (DUAL VCO board;Q304, Q305 and D303) is amplified at a buffer-amplifier(Q306) and is again amplified at another buffer-amplifier(Q352). The amplified signal is applied to the PLL IC (IC851,pin 2), and then divided by serial data from the CPU andphase-detected with the divided reference frequency. Thephase difference is output as pulses.

The output signals from IC851 (pin 8) are converted to DCvoltages (lock voltage) by the loop filter (R366–R368, C362,and C364) and are then fed back to the VHF VCO circuit tostabilize the VCO frequency.

The DC voltage is also applied to the receiver tuned band-pass filters as a “VTUNE” signal.

4-3-2 UHF PLL CIRCUIT (1F UNIT)The oscillated signal at the VCO circuit (DUAL VCO board;Q301, Q302, D301 and D302) is amplified at a buffer-ampli-fier (Q306) and is again amplified at another buffer-amplifier(Q352). The amplified signal is applied to the PLL IC (IC851,pin 19), and then divided by serial data from the CPU. It isthe phase-detected with the divided reference frequencyand the phase difference is output as pulses.

The output signals from IC851 (pin 13) are converted to DCvoltages (lock voltage) by the loop filter (R866–R868, C862and C864) and are then fed back to the UHF VCO circuit tostabilize the VCO frequency.

• APC CIRCUIT

R303

R302

R304

IC250

"H/L" signal fromthe LOGIC unit

"PREF" signal from the 1F unit

2F unit1F unit

67 3

2

APC control

APC set

R401

R281

From UHF buffer amp. (Q701)

From VHF buffer amp. (Q201)D201

D701Q401

6, 7 2, 3

1, 45, 8

C401

T8

L102

R284

R403

L203

R250VCC

MRF9742Q402MRF5007

L405

C411

to VHF RF circuit

to UHF RF circuit

Page 10: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

4 - 4

4-5 OTHER CIRCUITS4-5-1 TONE SQUELCH CIRCUIT (LOGIC UNIT)A portion of the detected audio signals from the “DETO” lineare passed through the low-pass filter (IC13). The filteredsignal is then applied to the CPU (IC1, pin 4), and is com-pared with the programmed tone signal. The CPU (IC1) out-puts control signals to the AF mute and AF regulator circuitsto open the squelch when a matched tone signal is received.

The programmed subaudible tone signal is output from theCPU (LOGIC unit; IC1, pin 9) directly when transmitting witha tone.

LINE

HV

VCC

VHT2V

UHT2V

R3V

+3S

DESCRIPTION

The voltage from the external power supply orattached battery pack.

The same voltage as the HV line (external powersupply or battery pack) which is controlled by thepower switch ([POWER] control).

Common 3 V converted from the VCC line by the+3CPU regulator IC (LOGIC unit; IC2). The out-put voltage is supplied to the +3C, R3 and T4regulator circuits, etc.

Common 3 V converted from the VCC line by the+3C regulator circuit (LOGIC unit; Q4, Q5, Q40and D3) using the +3CPU regulator (LOGIC unit;IC2).

3 V for receiver circuit converted from the VCCline by the R3 regulator circuit (2F unit; Q4, Q5and D402).

4 V for transmitter circuit converted from theVCC line by the T4 regulator circuit (1F unit;Q702, Q703 and D702). The T4 regulator circuitis controlled by the CPU (LOGIC unit; IC1, pin45) via T4 control regulator circuit (1F unit;Q704).

4-4 POWER SUPPLY CIRCUITSVOLTAGE LINE

• PLL circuit

Shift register

PrescalerPhasedetector

Loopfilter

Programmablecounter

Programmabledivider

Ref. osc. X1(15.2 MHz)

"2NDLO" signal to the FM IF IC (2F unit)

Q304, Q305, D303, D304

V VCO

U VCO

Buffer

Buffer

Buffer

Q852

Q352

Q306

345

PSTB

IC851 (PLL IC)

CLKDATA

17

16

13

19

Q301, Q302, D301, D302

DUAL VCO BOARD

PrescalerProgrammablecounter

Phasedetector

3

8

Loopfilter

"VTUNE" signal to VHF RF circuit (2F unit)

2

Buffer

Q351D351

D352

to VHF buffer amp. circuit

to UHF buffer amp. circuit

Page 11: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

Pin PortDescriptionnumber name

Pin PortDescriptionnumber name

4 - 5

4-5 PORT ALLOCATIONS4-5-1 CPU (LOGIC UNIT; IC1)

2

3

4

5

6

7

8

9

10

12

17

21

22

23

24

28–31

32

33

39

40

41

REMOTE

SD

CTCIN

PCON

PLST

PLCK/ECK

PDA/UL

CTCSS

DTMF

NOISE

LOCK

DIUD

DICK

POWER

CONT

KR3–KR0

PTT

RESET

CFC

ESIO

BLED

Input port for remote control signalfrom an optional HM-75A microphonevia the [EXT MIC] jack.

Input port for detected S-meter signalsfrom the IC101 (pin 12) on the 2F unit.

Input port for received CTCSS tonesignals.

Output port for +3C regulator circuitcontrol signals.“HIGH” : Power ON.

Output PLL strobe signals.

Output port for clock signals to PLLand EEPROM ICs.

DATA bus line for PLL.• Outputs PLL DATA when PLL is

locked.• When PLL is unlocked, PLL IC

releases the port being pulled up,therefore, the CPU receives “HIGH”level signal.

Output port for CTCSS tone signals.

Output port for:• Beep audio signals while receiving.• DTMF signals or 1,750 Hz tone sig-

nal while transmitting.(According to versions)

Input pulse signals for noise squelchfrom the IC101 (pin 13) on the 2F unit.

Input port for the [LOCK] switch.“LOW” : [LOCK] switch is ON.

Inputs up/down signals from the[DIAL] control.

Input port for dial clock signals.

Input port for the [POWER] switch.“Low” : [POWER] switch is pushed.

Outputs LCD contrast control signals.

Input port for key matrix.

Input port for the PTT control circuit.“HIGH” : When transmitting.

Input port for reset circuit (LOGIC unit;IC3, pin 1).

Outputs control signals to the powersupply of the CTCSS band-pass filter(LOGIC unit; Q45).“LOW” : Activates the BPF.

DATA bus line for the EEPROM(LOGIC unit; IC15) data signals.

Outputs [BUSY] LED control signals.“HIGH” : The [BUSY] LED lights.

42

43

44

46

47

48

49

55

56

Outputs LCD backlight control signals.“High” : The backlight lights.

Output port for the microphone ampli-fier (LOGIC unit; IC12).“LOW” : Activates the mic. amplifier.

Output a mute signal.[MM] : Microphone mute for DTMF

or 1,750 Hz tone whiletransmitting.

[RM] : Audio mute for squelch cir-cuit while receiving.

“HIGH” : To mute one of above.

Outputs transmit frequency band con-trol signals.“HIGH” : UHF band.“LOW” : VHF band.

Output port for the UHF band VCO(DUAL-VCO board; Q301, Q302 andD301) control signals.“HIGH” : Activates the UHF-VCO.

Output port for the VHF band VCO(DUAL-VCO board; Q304, Q305 andD303) control signals.“HIGH” : Activates the VHF-VCO.

Output port for SHIFT signals to theshift switches (1F unit; Q354, Q854).“HIGH” : Transmit on VHF.“LOW” : Transmit on UHF.

Outputs control signals to the AF reg-ulator circuit (2F unit; Q151,Q152).“HIGH” : Activates the AF amplifier.

Output port for the TX output power(HIGH or LOW) select signals.“LOW” : HIGH power is selected.

LIGHT

MICC

MM/RM

TXSEL

HVCO

LVCO

SHIFT

AFON

H/L

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5 - 1

SECTION 5 ADJUSTMENT PROCEDURES

5-1 PLL AND TRANSMITTER ADJUSTMENT

PLL LOCKVOLTAGE(VHF)

(UHF)

PLLREFERENCEFREQUENCY

OUTPUTPOWER

FMDEVIATION

DTMFDEVIATION(USA-3,SEAonly)

TONE CALLDEVIATION(EUR, ITAonly)

ADJUSTMENT

ADJUSTMENT ADJUSTMENT CONDITIONMEASUREMENT

VALUE POINT

UNIT LOCATION UNIT ADJUST

1

2

1

2

1

1

2

3

4

1

2

1

1

• Displayed frequency : 145.000 MHz

• Receiving

• Transmitting

• Displayed frequency : 440.000 MHz [USA-3]430.000 MHz [Other]

• Receiving

• Transmitting

• Displayed frequency : 445.000 MHz [USA-3]435.000 MHz [Other]

• Transmitting

• Displayed frequency : 145.000 MHz

• Output power: High• Transmitting

• Output power: Low• Transmitting

• Displayed frequency :445.000 MHz [USA-3]435.000 MHz [Other]

• Output power: High• Transmitting

• Output power: Low• Transmitting

• Displayed frequency :145.000 MHz

• Connect an audio generator tothe [MIC] connector and set as:1 kHz/95 mV

• Set the FM deviation meter as :HPF : OFFLPF : 20 kHzDe-emphasis : OFFDetector : (P–P)/2

• Output power: High• Transmitting

• Displayed frequency :445.000 MHz [USA-3]435.000 MHz [Other]

• Output power: High• Transmitting

• Displayed frequency :445.000 MHz [USA-3]435.000 MHz [SEA]

• Push [D] key while transmitting

• Displayed frequency: 435.000 MHz

• Push [TONE] key while transmit-ting

1F

Toppanel

Toppanel

Toppanel

Toppanel

Toppanel

Connect a digitalmultimeter or anoscilloscope to the“VLV”.

Connect a digitalmultimeter or anoscilloscope to the“ULV”.

Loosely couple afrequnecy counterto the antenna con-nector.

Connect an RFpower meter to theantenna connector.

Connect an FMdeviation meter tothe antenna con-nector through anattenuator.

Connect an FMdeviation meter tothe antenna con-nector through anattenuator.

Connect an FMdeviation meter tothe antenna con-nector through anattenuator.

1.3 V

0.9 V – 1.7 V

2.2 V

1.9 – 2.5 V

445.0000 MHz [USA-3]435.0000 MHz[Other]

5.5 W

0.5 W

5.5 – 6.0 W

0.5 W

± 4.3 kHz

± 4.3 kHz

± 3.5 kHz

± 3.5 kHz

DUAL-VCO

1F

2F

2F

LOGIC

LOGIC

L303

Verify

L301

Verify

C369

R302

R316

R304

R313

R308

R314

R147

R147

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5 - 2

PLL frequency adjustment(Adjustable via openings on the 2F unit)

C369

ULV*PLL lock voltage check point for UHF

L303PLL lock voltage adjustment for VHF

L301PLL lock voltageadjustment for UHF

VLV*PLL lock voltage checkpoint for VHF

DC POWER SUPPLY13.5 V / 3 A

*Located on the underside of the 1F unit.

FREQUENCY COUNTER

100 MHz–500 MHz

• 1F UNIT

• 2F UNIT

RF POWER METER10 W 50 Ω

FREQUENCYCOUNTER

100 MHz–500 MHz

R302

R304

VHF output poweradjustment (High)

UHF output poweradjustment (High)

ATTENUATOR 40 or 50 dB

FM DEVIATION METER100–500 MHz

AUDIO GENERATOR 300–3000 Hz 1–500 mV

DC POWER SUPPLY 13.5 V / 3 A

R314UHF frequencydeviation adjustment

R308VHF frequencydeviation adjustment

• LOGIC UNIT

R147DTMF or Tone calldeviation adjustment

R313UHF output poweradjustment (Low)

R316VHF output poweradjustment (Low)

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5 - 3

5-2 RECEIVER ADJUSTMENT

VHFSENSITIVITY

UHFSENSITIVITY

SQUELCHLEVEL

S-METER

ADJUSTMENT

ADJUSTMENT ADJUSTMENT CONDITIONMEASUREMENT

VALUE POINT

UNIT LOCATION UNIT ADJUST

1

1

1

1

2

• Displayed frequency :145.000 MHz [EUR]146.000 MHz [Other]

• Connect an SSG to the antennaconnector and set as :

Level : 1.0 mV*(–47 dBm)

Modulation : 1 kHzDeviation : ±3.5 kHz

• Receiving

• Displayed frequency : 445.000 MHz [USA-3]435.000 MHz [Other]

• Connect an SSG to the antennaconnector and set as :

Level : 1.0 mV*(–47 dBm)

Modulation : OFF

• Receiving

• Displayed frequency : any

• Connect an SSG to the antennaconnector and set as :

Level : 0.089 µV*(– 128 dBm)

Modulation : 1 kHzDeviation : ± 3.5 kHz

• Pre-set the R504 to maxmumCW.

• Receiving

• Displayed frequency : 443.000 MHz [USA-3]433.000 MHz [Other]

• Connect an SSG to the antennaconnector and set as :

Level : 0.5 µV*(– 113 dBm)

Modulation : 1 kHzDeviation : ± 3.5 kHz

• Connect a terminator to the [EXTSP] jack.

• Receiving

• Set an SSG output level for the S-meter to S3 (4 dots).

2F

2F

Seaker

Frontpanel

SSG

Connect a digitalmultimeter or oscil-loscope to thecheck point “S”.

Connect a digitalmultimeter or oscil-loscope to thecheck point “CP1”.

Output level

Maximum DC voltage

1.0 V

At the point where theAF signal just disap-pears.

0.28 to 0.89 µV(– 118 to – 108 dBm)

2F

2F

Adjust insequence

L53, L54, L55

L102

R504

Verify

*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.

Push and holdthe [CALL] key.

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5 - 4

Terminator for the S-meter adjustment

8 Ω speaker

68 kΩ

STANDARD SIGNAL GENERATOR (SSG) 100–500 MHz

–127 to – 17 dBm (0.1 µV to 32 mV)

CAUTION: DO NOT transmit while the signal generator is connected.

L102

CP1

UHF sensitivityadjustment

UHF sensitivitycheck point

L53

L54

L55

VHF sensitivityadjustment

SVHF sensitivitycheck point

R504Squelch level adjustment

• 2F UNIT

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S.=Surface mount

IC250 1110002700 S.IC NJM2904M-T1IC851 1130007610 S.IC µPD3140GS-E1 (DS8)

Q201 1530000371 S.TRANSISTOR 2SC3356 R25-T2BQ202 1510000670 S.TRANSISTOR 2SA1588-GR (TE85R)Q203 1590001140 S.TRANSISTOR UN9210 (TX)Q204 1590002730 S.TRANSISTOR UN921L (TX)Q250 1530002280 S.TRANSISTOR 2SC4081 T107 SQ253 1590001050 S.TRANSISTOR DTC114TUA T106Q255 1520000430 S.TRANSISTOR 2SB1462-R (TX)Q351 1530003310 S.TRANSISTOR 2SC5107-O (TE85R)Q352 1530003310 S.TRANSISTOR 2SC5107-O (TE85R)Q353 1590001690 S.TRANSISTOR UN9115 (TX)Q354 1590001140 S.TRANSISTOR UN9210 (TX)Q355 1560000540 S.FET 2SK880-Y (TE85R)Q356 1530002280 S.TRANSISTOR 2SC4081 T107 SQ357 1590001690 S.TRANSISTOR UN9115 (TX)Q701 1530000371 S.TRANSISTOR 2SC3356 R25-T2BQ702 1520000460 S.TRANSISTOR 2SB1132 T100 RQ703 1540000350 S.TRANSISTOR 2SD2216-S (TX)Q704 1590001150 S.TRANSISTOR UN9211 (TX)Q705 1510000670 S.TRANSISTOR 2SA1588-GR (TE85R)Q852 1530002560 S.TRANSISTOR 2SC4403-3-TLQ853 1590001690 S.TRANSISTOR UN9115 (TX)Q854 1590001140 S.TRANSISTOR UN9210 (TX)

D1 1790001260 S.DIODE MA2S077-(TX)D2 1790001260 S.DIODE MA2S077-(TX)D51 1790001260 S.DIODE MA2S077-(TX)D52 1790001260 S.DIODE MA2S077-(TX)D201 1790001260 S.DIODE MA2S077-(TX)D202 1790001260 S.DIODE MA2S077-(TX)D250 1730002260 S.ZENER MA8030-H (TX)D251 1790001010 S.ZENER MA8043-L (TX)D351 1790001260 S.DIODE MA2S077-(TX)D352 1790001260 S.DIODE MA2S077-(TX)D353 1790001260 S.DIODE MA2S077-(TX)D354 1790000840 S.DIODE MA132WA (TX)D551 1790001260 S.DIODE MA2S077-(TX)D552 1790001260 S.DIODE MA2S077-(TX)D701 1790001260 S.DIODE MA2S077-(TX)D702 1790000860 S.DIODE MA133 (TX)D703 1790001250 S.DIODE MA2S111-(TX)D722 1750000530 S.DIODE 1SV271 (TPH3)D723 1790001260 S.DIODE MA2S077D724 1790001260 S.DIODE MA2S077D725 1750000530 S.DIODE 1SV271 (TPH3)D901 1750000540 S.DIODE RB060L-40 TE-25

X851 6050009430 XTAL CR-515 (15.200000 MHz)

L1 6200007790 S.COIL LQN21A R15J04L2 6200008250 S.COIL 0.30-0.9-7TL 21NL3 6200008760 S.COIL 0.26-0.9-9TR 30NL5 6200004350 S.COIL LL1608-F10NKL6 6200004350 S.COIL LL1608-F10NKL7 6200008240 S.COIL 0.30-0.9-5TL 14NL8 6200008850 S.COIL 0.40-1.1-6TRL9 6200008770 S.COIL 0.28-1.0-5TR 16NL10 6200005890 S.COIL NLH252018T-039J 39NL11 6200008830 S.COIL 0.20-1.0-12TL 60NL12 6200005900 S.COIL NLH252018T-047J 47NL13 6200004480 S.COIL MLF1608D R82K-TL51 6200005910 S.COIL NLH252018T-056J 56NL52 6200005910 S.COIL NLH252018T-056J 56NL201 6200004480 S.COIL MLF1608D R82K-TL202 6200005930 S.COIL NLH252018T-082J 82NL203 6200003590 S.COIL EXCCL3225U1L204 6200003590 S.COIL EXCCL3225U1L205 6200004480 S.COIL MLF1608D R82K-TL206 6200005690 S.COIL ELJRE 18NG-F

L352 6200003550 S.COIL MLF1608A 4R7K-TL353 6200003550 S.COIL MLF1608A 4R7K-TL354 6200004480 S.COIL MLF1608D R82K-TL355 6200004480 S.COIL MLF1608D R82K-TL551 6200008530 S.COIL 0.30-1.0-4TR 12NL552 6200008530 S.COIL 0.30-1.0-4TR 12NL701 6200004370 S.COIL LL1608-F15NKL702 6200005830 S.COIL NLH252018T-012J 12NL703 6200004380 S.COIL LL1608-F18NKL723 6200008080 S.COIL LQN21A R22J04L724 6200008080 S.COIL LQN21A R22J04L725 6200008080 S.COIL LQN21A R22J04L801 6200006980 S.COIL ELJRE R10G-FL900 6200003590 S.COIL EXCCL3225U1L901 6200003590 S.COIL EXCCL3225U1

R1 7030007270 S.RESISTOR ERJ2GEJ 151 X (150 Ω) R201 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R202 7030007270 S.RESISTOR ERJ2GEJ 151 X (150 Ω) R203 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R204 7030005530 S.RESISTOR ERJ2GEJ 100 X (10 Ω) R205 7030007340 S.RESISTOR ERJ2GEJ 153 X (15 kΩ) R207 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R208 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R209 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R210 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R250 7030007330 S.RESISTOR ERJ1WRSJR15U (0.15 Ω)R251 7030005070 S.RESISTOR ERJ2GEJ 683 X (68 kΩ) R252 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R258 7030007340 S.RESISTOR ERJ2GEJ 153 X (15 kΩ) R259 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R260 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R261 7030005160 S.RESISTOR ERJ2GEJ 105 X (1 MΩ) R262 7030005220 S.RESISTOR ERJ2GEJ 223 X (22 kΩ) R263 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R264 7030007290 S.RESISTOR ERJ2GEJ 222 X (2.2 kΩ) R265 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R266 7510001000 S.THERMISTOR TBPS1R154K475H5QR267 7030007340 S.RESISTOR ERJ2GEJ 153 X (15 kΩ) R278 7030005530 S.RESISTOR ERJ2GEJ 100 X (10 Ω) R281 7030005120 S.RESISTOR ERJ2GEJ 102 X (1 kΩ) R282 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R283 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R284 7030007260 S.RESISTOR ERJ2GEJ 330 X (33 Ω) R285 7030005120 S.RESISTOR ERJ2GEJ 102 X (1 kΩ) R350 7030005120 S.RESISTOR ERJ2GEJ 102 X (1 kΩ) R351 7030009200 S.RESISTOR ERJ2GEJ 390 X (39 Ω) R352 7030005030 S.RESISTOR ERJ2GEJ 152 X (1.5 kΩ) R354 7030005220 S.RESISTOR ERJ2GEJ 223 X (22 kΩ) R355 7030007260 S.RESISTOR ERJ2GEJ 330 X (33 Ω) R356 7030005300 S.RESISTOR ERJ2GEJ 150 X (15 Ω) R357 7030005300 S.RESISTOR ERJ2GEJ 150 X (15 Ω) R358 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R359 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R360 7030004990 S.RESISTOR ERJ2GEJ 221 X (220 Ω) R361 7030004970 S.RESISTOR ERJ2GEJ 470 X (47 Ω) R362 7030005100 S.RESISTOR ERJ2GEJ 154 X (150 kΩ) R363 7030005110 S.RESISTOR ERJ2GEJ 224 X (220 kΩ) R364 7030005110 S.RESISTOR ERJ2GEJ 224 X (220 kΩ) R365 7030007280 S.RESISTOR ERJ2GEJ 331 X (330 Ω) R366 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R367 7030005030 S.RESISTOR ERJ2GEJ 152 X (1.5 kΩ) R368 7030005010 S.RESISTOR ERJ2GEJ 681 X (680 Ω) R369 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R370 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R371 7030007280 S.RESISTOR ERJ2GEJ 331 X (330 Ω) R372 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R373 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R374 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R701 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R702 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R704 7030005530 S.RESISTOR ERJ2GEJ 100 X (10 Ω) R705 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R706 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω)

6 - 1

REF ORDER DESCRIPTIONNO. NO.

[1F UNIT]REF ORDER DESCRIPTIONNO. NO.

[1F UNIT]

SECTION 6 PARTS LIST

Page 17: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

S.=Surface mount

R708 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R709 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R710 7030004970 S.RESISTOR ERJ2GEJ 470 X (47 Ω) R721 7030005530 S.RESISTOR ERJ2GEJ 100 X (10 Ω) R724 7030007260 S.RESISTOR ERJ2GEJ 330 X (33 Ω) R726 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R727 7030007270 S.RESISTOR ERJ2GEJ 151 X (150 Ω) R728 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R730 7030005530 S.RESISTOR ERJ2GEJ 100 X (10 Ω) R731 7030007270 S.RESISTOR ERJ2GEJ 151 X (150 Ω) R732 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R858 7030005710 S.RESISTOR ERJ2GEJ 121 X (120 Ω) R859 7030005220 S.RESISTOR ERJ2GEJ 223 X (22 kΩ) R861 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R862 7030005060 S.RESISTOR ERJ2GEJ 333 X (33 kΩ) R863 7030005230 S.RESISTOR ERJ2GEJ 334 X (330 kΩ) R864 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R866 7030005290 S.RESISTOR ERJ2GEJ 682 X (6.8 kΩ) R867 7030007300 S.RESISTOR ERJ2GEJ 332 X (3.3 kΩ) R868 7030005010 S.RESISTOR ERJ2GEJ 681 X (680 Ω) R902 7030003390 S.RESISTOR ERJ3GEYJ 391 V (390 Ω)

C1 4030009720 S.CERAMIC C1005 CH 1E 080D-T-AC2 4030010250 S.CERAMIC C1005 CH 1E 101J-T-AC3 4030009710 S.CERAMIC C1005 CH 1E 070D-T-AC4 4030010280 S.CERAMIC C1005 CH 1E 390J-T-AC5 4030009760 S.CERAMIC C1005 CH 1E 150J-T-AC6 4030011640 S.CERAMIC C1005 CH 1E 010B-T-AC7 4030011640 S.CERAMIC C1005 CH 1E 010B-T-AC8 4030011660 S.CERAMIC C1005 CH 1E 020B-T-AC9 4030011640 S.CERAMIC C1005 CH 1E 010B-T-AC10 4030009720 S.CERAMIC C1005 CH 1E 080D-T-AC11 4030011630 S.CERAMIC C1005 CH 1E 0R5B-T-AC12 4030009730 S.CERAMIC C1005 CH 1E 090D-T-AC13 4030011650 S.CERAMIC C1005 CH 1E 1R5B-T-AC14 4030011700 S.CERAMIC C1005 CH 1E 040B-T-AC15 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC16 4030011670 S.CERAMIC C1005 CH 1E 2R5B-T-AC17 4030009770 S.CERAMIC C1005 CH 1E 220J-T-AC18 4030009700 S.CERAMIC C1005 CH 1E 050C-T-AC19 4030009780 S.CERAMIC C1005 CH 1E 270J-T-AC20 4030011660 S.CERAMIC C1005 CH 1E 020B-T-AC21 4030009760 S.CERAMIC C1005 CH 1E 150J-T-AC22 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC23 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC24 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC51 4030009770 S.CERAMIC C1005 CH 1E 220J-T-AC52 4030009780 S.CERAMIC C1005 CH 1E 270J-T-AC53 4030009750 S.CERAMIC C1005 CH 1E 120J-T-AC101 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC102 4550006470 S.TANTALUM TEMSVB2 1D 106M-8LC206 4030009710 S.CERAMIC C1005 CH 1E 070D-T-AC207 4030009830 S.CERAMIC C1005 CH 1E 180J-T-AC209 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC210 4550006470 S.TANTALUM TEMSVB2 1D 106M-8LC211 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC212 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC213 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC214 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC215 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC216 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC231 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC232 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC233 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC234 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC235 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC236 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC254 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC267 4550006050 S.TANTALUM TEMSVA 0J 106M8LC268 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC270 4550006050 S.TANTALUM TEMSVA 0J 106M8LC301 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC350 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC351 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC354 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC355 4550006120 S.TANTALUM TEMSVA 0G 226M-8LC356 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC357 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC358 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC359 4030009810 S.CERAMIC C1005 JB 1E 102K-T-A

C360 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC361 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC362 4550000530 S.TANTALUM TESVA 1V 104M1-8LC364 4550003080 S.TANTALUM TEMSVA 1A 335M-8LC365 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC366 4030011320 S.CERAMIC C1005 CH 1E 470J-T-AC367 4030011320 S.CERAMIC C1005 CH 1E 470J-T-AC368 4030011320 S.CERAMIC C1005 CH 1E 470J-T-AC369 4610002140 S.TRIMMER CTZ3S-20C-WI-PFC370 4030009770 S.CERAMIC C1005 CH 1E 220J-T-AC371 4030010280 S.CERAMIC C1005 CH 1E 390J-T-AC372 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC373 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC374 4030009730 S.CERAMIC C1005 CH 1E 090D-T-AC375 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC376 4030009710 S.CERAMIC C1005 CH 1E 070D-T-AC377 4030011680 S.CERAMIC C1005 CH 1E 030B-T-AC378 4030009710 S.CERAMIC C1005 CH 1E 070D-T-AC379 4030011700 S.CERAMIC C1005 CH 1E 040B-T-AC380 4030009780 S.CERAMIC C1005 CH 1E 270J-T-AC551 4030009710 S.CERAMIC C1005 CH 1E 070D-T-AC552 4030009740 S.CERAMIC C1005 CH 1E 100D-T-AC553 4030009720 S.CERAMIC C1005 CH 1E 080D-T-AC554 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC701 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC707 4030009700 S.CERAMIC C1005 CH 1E 050C-T-AC709 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC711 4550002890 S.TANTALUM TESVA 1A 225M1-8LC713 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC714 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC715 4030009700 S.CERAMIC C1005 CH 1E 050C-T-AC716 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC717 4030009700 S.CERAMIC C1005 CH 1E 050C-T-AC724 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC727 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC728 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC730 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC732 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC733 4030011320 S.CERAMIC C1005 CH 1E 470J-T-AC734 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC735 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC736 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC851 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC852 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC855 4550006120 S.TANTALUM TEMSVA 0G 226M-8LC856 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC857 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC858 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC859 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC860 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC861 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC862 4550000530 S.TANTALUM TESVA 1V 104M1-8LC863 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC864 4550002960 S.TANTALUM TESVA 1C 155M1-8LC865 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC901 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC903 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC904 4030007090 S.CERAMIC C1608 CH 1H 470J-T-AC905 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC906 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC907 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC908 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC909 4550006050 S.TANTALUM TEMSVA 0J 106M8LC910 4510004630 S.ELECTROLYTIC ECEV1CA100SRC911 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC912 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC913 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC914 4030009810 S.CERAMIC C1005 JB 1E 102K-T-A

J201 6910003840 CONNECTOR IMSA-9230B-1-05Z003-TJ202 6910003840 CONNECTOR IMSA-9230B-1-05Z003-TJ901 6450000130 CONNECTOR HSJ1102-01-540J902 6450001060 CONNECTOR HSJ1493-01-010J903 6450000870 CONNECTOR HEC2711-01-020J904 6510018470 S.CONNECTOR IL-WX-30PB-VF84-B-E900J905 6510017630 S.CONNECTOR 53264-0690

S1 7600000190 ENCODER TP96D96E20-15F-10KA-1810

6 - 2

REF ORDER DESCRIPTIONNO. NO.

[1F UNIT]REF ORDER DESCRIPTIONNO. NO.

[1F UNIT]

Page 18: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

S.=Surface mount

W1 7120000470 JUMPER ERDS2T0W2 7030003860 S.JUMPER ERJ3GE JPW V W5 7030000010 S.JUMPER MCR10EZHJ JPW (000)

EP1 0910051202 PCB B 5215C

Q401 1560001100 S.FET 2SK3074 (TE12L)Q402 1560001060 S.FET 2SK3075 (TE12L)

L401 6200005670 S.COIL ELJRE 12NG-FL402 6200008830 S.COIL 0.20-1.0-12TL 60NL403 6200005600 S.COIL ELJRE 3N3Z-FL404 6200008480 S.COIL 0.30-1.4-5TR 25NL405 6200008220 S.COIL 0.40-1.4-5TR 21NL406 6200008870 S.COIL 0.40-1.1-3TL

R401 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R402 7030004970 S.RESISTOR ERJ2GEJ 470 X (47 Ω) R403 7030003380 S.RESISTOR ERJ3GEYJ 331 V (330 Ω)

C401 4030009760 S.CERAMIC C1005 CH 1E 150J-T-AC402 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC403 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC404 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC405 4030009780 S.CERAMIC C1005 CH 1E 270J-T-AC406 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC407 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC409 4030014520 S.CERAMIC GRH708 CH 200J 200PTC410 4030016720 S.CERAMIC GRH708 CH 560J 100PTC411 4030004720 S.CERAMIC C2012 JB 1H 102K-T-AC412 4030007010 S.CERAMIC C1608 CH 1H 102K-T-A

EP401 0910051222 PCB B 5218B

Q301 1530003260 S.TRANSISTOR 2SC5006-T1Q302 1530003260 S.TRANSISTOR 2SC5006-T1Q304 1530003320 S.TRANSISTOR 2SC5108-Y (TE85R)Q305 1530003320 S.TRANSISTOR 2SC5108-Y (TE85R)Q306 1530003320 S.TRANSISTOR 2SC5108-Y (TE85R)

D301 1720000370 S.VARICAP HVU350TRFD302 1790001260 S.DIODE MA2S077-(TX)D303 1790001290 S.VARICAP MA304 (TX)D304 1790001260 S.DIODE MA2S077-(TX)

L301 6110003180 COIL LA-508L302 6200004480 S.COIL MLF1608D R82K-TL303 6110003190 COIL LA-509L304 6200004480 S.COIL MLF1608D R82K-T

R302 7030007290 S.RESISTOR ERJ2GEJ 222 X (2.2 kΩ) R303 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R304 7030005590 S.RESISTOR ERJ2GEJ 680 X (68 Ω) R305 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R306 7030009200 S.RESISTOR ERJ2GEJ 390 X (39 Ω) R307 7030009200 S.RESISTOR ERJ2GEJ 390 X (39 Ω) R311 7030005120 S.RESISTOR ERJ2GEJ 102 X (1 kΩ) R312 7030005290 S.RESISTOR ERJ2GEJ 682 X (6.8 kΩ)

R313 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R314 7030005290 S.RESISTOR ERJ2GEJ 682 X (6.8 kΩ) R315 7030004990 S.RESISTOR ERJ2GEJ 221 X (220 Ω) R316 7030004970 S.RESISTOR ERJ2GEJ 470 X (47 Ω) R317 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R318 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R319 7030005110 S.RESISTOR ERJ2GEJ 224 X (220 kΩ) R320 7030004990 S.RESISTOR ERJ2GEJ 221 X (220 Ω) R321 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω)

C301 4030009780 S.CERAMIC C1005 CH 1E 270J-T-AC302 4030010080 S.CERAMIC C1005 CH 1E 240J-T-AC303 4030011670 S.CERAMIC C1005 CH 1E 2R5B-T-AC304 4030011670 S.CERAMIC C1005 CH 1E 2R5B-T-AC305 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC306 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC307 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC308 4030011720 S.CERAMIC C1005 CH 1E R75B T000PC311 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC312 4030009780 S.CERAMIC C1005 CH 1E 270J-T-AC313 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC314 4030011670 S.CERAMIC C1005 CH 1E 2R5B-T-AC315 4030011670 S.CERAMIC C1005 CH 1E 2R5B-T-AC316 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC317 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC318 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC319 4030011720 S.CERAMIC C1005 CH 1E R75B T000PC320 4030009770 S.CERAMIC C1005 CH 1E 220J-T-AC321 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC322 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC323 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC324 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC325 4030009810 S.CERAMIC C1005 JB 1E 102K-T-A

J301 6510018640 CONNECTOR IMSA-9230B-1-05Z064-TJ302 6510018640 CONNECTOR IMSA-9230B-1-05Z064-T

EP301 0910051194 PCB B 4731D

IC101 1110003490 S.IC TA31136FN (D,EL)IC102 1130004200 S.IC TC4S66F (TE85R)IC151 1110001810 S.IC TA7368F (TP1)IC301 1130006220 S.IC TC4W53FU (TE12L)IC601 1110003370 S.IC µPC2748T-E3

Q4 1590001170 S.TRANSISTOR XP1501-(TX).ABQ5 1510000670 S.TRANSISTOR 2SA1588-GR (TE85R)Q51 1530003430 S.TRANSISTOR 2SC5226-4-TLQ52 1530002560 S.TRANSISTOR 2SC4403-3-TLQ53 1590001690 S.TRANSISTOR UN9115 (TX)Q101 1530002600 S.TRANSISTOR 2SC4215-O (TE85R)Q102 1590001170 S.TRANSISTOR XP1501-(TX).ABQ103 1540000350 S.TRANSISTOR 2SD2216-S (TX)Q104 1540000350 S.TRANSISTOR 2SD2216-S (TX)Q105 1590001690 S.TRANSISTOR UN9115 (TX)Q151 1520000650 S.TRANSISTOR 2SB1201-S-TLQ152 1590001170 S.TRANSISTOR XP1501-(TX).ABQ201 1530002920 S.TRANSISTOR 2SC4226-T2 R25Q202 1530002560 S.TRANSISTOR 2SC4403-3-TLQ305 1590001140 S.TRANSISTOR UN9210 (TX)Q306 1590001470 S.TRANSISTOR UN9213 (TX)Q307 1590002010 S.TRANSISTOR XP1114 (TX)Q308 1590001770 S.TRANSISTOR XP1213 (TX)Q309 1590001430 S.TRANSISTOR UN9114 (TX)Q310 1590001140 S.TRANSISTOR UN9210 (TX)Q400 1530003310 S.TRANSISTOR 2SC5107-O (TE85R)Q401 1530002560 S.TRANSISTOR 2SC4403-3-TLQ403 1590001690 S.TRANSISTOR UN9115 (TX)Q404 1590001690 S.TRANSISTOR UN9115 (TX)Q601 1530002900 S.TRANSISTOR 2SC4228-T2 R45

6 - 3

REF ORDER DESCRIPTIONNO. NO.

[1F UNIT]REF ORDER DESCRIPTIONNO. NO.

[DUAL-VCO BOARD]

REF ORDER DESCRIPTIONNO. NO.

[PA BOARD]

REF ORDER DESCRIPTIONNO. NO.

[DUAL-VCO BOARD]

REF ORDER DESCRIPTIONNO. NO.

[2F UNIT]

Page 19: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

S.=Surface mount

Q602 1590002380 S.TRANSISTOR XP1115 (TX)Q901 1520000460 S.TRANSISTOR 2SB1132 T100 RQ902 1590002580 S.FET HAT1024R-EL

D52 1790001290 S.VARICAP MA304 (TX)D53 1790001290 S.VARICAP MA304 (TX)D54 1790001290 S.VARICAP MA304 (TX)D55 1750000530 S.DIODE 1SV271 (TPH3)D101 1790001260 S.DIODE MA2S077-(TX)D102 1790001260 S.DIODE MA2S077-(TX)D103 1790001260 S.DIODE MA2S077-(TX)D201 1750000530 S.DIODE 1SV271 (TPH3)D202 1790001260 S.DIODE MA2S077-(TX)D203 1790001260 S.DIODE MA2S077-(TX)D301 1790001250 S.DIODE MA2S111-(TX)D302 1790001250 S.DIODE MA2S111-(TX)D400 1790001260 S.DIODE MA2S077-(TX)D401 1790000840 S.DIODE MA132WA (TX)D402 1790000840 S.DIODE MA132WA (TX)D403 1790001260 S.DIODE MA2S077-(TX)D404 1790001260 S.DIODE MA2S077-(TX)D601 1790001260 S.DIODE MA2S077-(TX)D602 1790001260 S.DIODE MA2S077-(TX)D603 1790001260 S.DIODE MA2S077-(TX)D604 1790001260 S.DIODE MA2S077-(TX)D605 1790000850 S.DIODE MA132WK (TX)D606 1790001260 S.DIODE MA2S077-(TX)D607 1790001260 S.DIODE MA2S077-(TX)D902 1790000860 S.DIODE MA133 (TX)D903 1790001240 S.DIODE MA2S728-(TX)D904 1790000670 S.DIODE SB07-03C-TB

FI101 2020001270 CERAMIC CFWM450EFI201 2040001000 S.SAW EFCH435MWNP1

[EUR], [ITA], [SEA]2040001020 S.SAW EFCH445MWNP1 [USA-3]

FI401 2010001960 MONOLITH 45M15AM FL-244

L53 6150004920 S.COIL LS-518 L54 6150004920 S.COIL LS-518 L55 6150004920 S.COIL LS-518 L101 6200002710 S.COIL ELJFC 1R8K-FL102 6150004840 S.COIL LS-510 L201 6200004370 S.COIL LL1608-F15NKL202 6200004380 S.COIL LL1608-F18NKL203 6200004360 S.COIL LL1608-F12NKL204 6200004360 S.COIL LL1608-F12NKL400 6200006980 S.COIL ELJRE R10G-FL401 6200004340 S.COIL LL1608-F6N8KL403 6200002710 S.COIL ELJFC 1R8K-FL603 6200004370 S.COIL LL1608-F15NKL604 6200004350 S.COIL LL1608-F10NKL605 6200004350 S.COIL LL1608-F10NKL606 6200004390 S.COIL LL1608-F22NKL607 6200004390 S.COIL LL1608-F22NKL609 6200004400 S.COIL LL1608-F47NK

R5 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R51 7030005070 S.RESISTOR ERJ2GEJ 683 X (68 kΩ) R52 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R53 7030005590 S.RESISTOR ERJ2GEJ 680 X (68 Ω) R54 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R55 7030007280 S.RESISTOR ERJ2GEJ 331 X (330 Ω) R56 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R57 7030005060 S.RESISTOR ERJ2GEJ 333 X (33 kΩ) R58 7030004970 S.RESISTOR ERJ2GEJ 470 X (47 Ω) R59 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R60 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R61 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R62 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R63 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R64 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R101 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R102 7030005000 S.RESISTOR ERJ2GEJ 471 X (470 Ω) R103 7030005120 S.RESISTOR ERJ2GEJ 102 X (1 kΩ) R104 7030005080 S.RESISTOR ERJ2GEJ 823 X (82 kΩ) R105 7030005030 S.RESISTOR ERJ2GEJ 152 X (1.5 kΩ) R106 7030005110 S.RESISTOR ERJ2GEJ 224 X (220 kΩ)

R107 7030005220 S.RESISTOR ERJ2GEJ 223 X (22 kΩ) R108 7030007340 S.RESISTOR ERJ2GEJ 153 X (15 kΩ) R110 7030005220 S.RESISTOR ERJ2GEJ 223 X (22 kΩ) R111 7030005220 S.RESISTOR ERJ2GEJ 223 X (22 kΩ) R112 7030005000 S.RESISTOR ERJ2GEJ 471 X (470 Ω) R113 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R114 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R115 7030005230 S.RESISTOR ERJ2GEJ 334 X (330 kΩ) R116 7030005000 S.RESISTOR ERJ2GEJ 471 X (470 Ω) R117 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R118 7030005120 S.RESISTOR ERJ2GEJ 102 X (1 kΩ) R119 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R120 7030005220 S.RESISTOR ERJ2GEJ 223 X (22 kΩ) R121 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R122 7030005110 S.RESISTOR ERJ2GEJ 224 X (220 kΩ) R123 7030005160 S.RESISTOR ERJ2GEJ 105 X (1 MΩ) R151 7030005530 S.RESISTOR ERJ2GEJ 100 X (10 Ω) R152 7030007270 S.RESISTOR ERJ2GEJ 151 X (150 Ω) R153 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R155 7030000140 S.RESISTOR MCR10EZHJ 10 Ω (100)R156 7030000140 S.RESISTOR MCR10EZHJ 10 Ω (100)R157 7030000140 S.RESISTOR MCR10EZHJ 10 Ω (100)R158 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R159 7030005120 S.RESISTOR ERJ2GEJ 102 X (1 kΩ) R160 7030005330 S.RESISTOR RR0816P-562-D (5.6 kΩ)R161 7030005330 S.RESISTOR RR0816P-562-D (5.6 kΩ)R162 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R201 7030005060 S.RESISTOR ERJ2GEJ 333 X (33 kΩ) R202 7030007270 S.RESISTOR ERJ2GEJ 151 X (150 Ω) R203 7030004990 S.RESISTOR ERJ2GEJ 221 X (220 Ω) R204 7030005070 S.RESISTOR ERJ2GEJ 683 X (68 kΩ) R205 7030007280 S.RESISTOR ERJ2GEJ 331 X (330 Ω) R206 7030007300 S.RESISTOR ERJ2GEJ 332 X (3.3 kΩ) R207 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R300 7510000960 S.THERMISTOR TBPS1R104K475H5QR301 7030006020 S.RESISTOR RR0510P-682-D (6.8 kΩ)R302 7310003590 S.TRIMMER EVM-1XSX50 B24 (203)R303 7030005070 S.RESISTOR ERJ2GEJ 683 X (68 kΩ) R304 7310003590 S.TRIMMER EVM-1XSX50 B24 (203)R305 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R306 7030005170 S.RESISTOR ERJ2GEJ 474 X (470 kΩ) R308 7310003630 S.TRIMMER EVM-1XSX50 BQ4 (473)R309 7030005530 S.RESISTOR ERJ2GEJ 100 X (10 Ω) R310 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R311 7030009290 S.RESISTOR ERJ2GEJ 562 X (5.6 kΩ) R312 7030005240 S.RESISTOR ERJ2GEJ 473 X (47 kΩ) R313 7310003610 S.TRIMMER EVM-1XSX50 B14 (103)R314 7310003630 S.TRIMMER EVM-1XSX50 BQ4 (473)R315 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ) R316 7310003610 S.TRIMMER EVM-1XSX50 B14 (103)R401 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R402 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R403 7030005580 S.RESISTOR ERJ2GEJ 560 X (56 Ω) R404 7030005600 S.RESISTOR ERJ2GEJ 273 X (27 kΩ) R405 7030005570 S.RESISTOR ERJ2GEJ 820 X (82 Ω) R406 7030005710 S.RESISTOR ERJ2GEJ 121 X (120 Ω) R407 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R408 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R409 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)R410 7030005120 S.RESISTOR ERJ2GEJ 102 X (1 kΩ) R411 7030005010 S.RESISTOR ERJ2GEJ 681 X (680 Ω) R414 7030005000 S.RESISTOR ERJ2GEJ 471 X (470 Ω) R415 7030005310 S.RESISTOR ERJ2GEJ 124 X (120 kΩ) R502 7030005530 S.RESISTOR ERJ2GEJ 100 X (10 Ω) R504 7310003590 S.TRIMMER EVM-1XSX50 B24 (203)R505 7030007340 S.RESISTOR ERJ2GEJ 153 X (15 kΩ) R506 7510001040 S.THERMISTOR TBPS1R153K460H5QR601 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R602 7030007300 S.RESISTOR ERJ2GEJ 332 X (3.3 kΩ) R603 7030005220 S.RESISTOR ERJ2GEJ 223 X (22 kΩ) R604 7030007280 S.RESISTOR ERJ2GEJ 331 X (330 Ω) R605 7030004980 S.RESISTOR ERJ2GEJ 101 X (100 Ω) R606 7030007290 S.RESISTOR ERJ2GEJ 222 X (2.2 kΩ) R607 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R608 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R609 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R610 7030007290 S.RESISTOR ERJ2GEJ 222 X (2.2 kΩ) R612 7030005040 S.RESISTOR ERJ2GEJ 472 X (4.7 kΩ) R903 7030000180 S.RESISTOR MCR10EZHJ 22 Ω (220)R904 7030000180 S.RESISTOR MCR10EZHJ 22 Ω (220)R905 7030005090 S.RESISTOR ERJ2GEJ 104 X (100 kΩ) R906 7030005050 S.RESISTOR ERJ2GEJ 103 X (10 kΩ)

6 - 4

REF ORDER DESCRIPTIONNO. NO.

[2F UNIT]REF ORDER DESCRIPTIONNO. NO.

[2F UNIT]

Page 20: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

S.=Surface mount

C11 4550002890 S.TANTALUM TESVA 1A 225M1-8LC12 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC54 4030009740 S.CERAMIC C1005 CH 1E 100D-T-AC55 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC56 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC57 4030009750 S.CERAMIC C1005 CH 1E 120J-T-AC58 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC59 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC60 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC61 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC62 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC63 4030009760 S.CERAMIC C1005 CH 1E 150J-T-AC64 4030011640 S.CERAMIC C1005 CH 1E 010B-T-AC65 4030011640 S.CERAMIC C1005 CH 1E 010B-T-AC66 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC67 4030009700 S.CERAMIC C1005 CH 1E 050C-T-AC68 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC69 4030009730 S.CERAMIC C1005 CH 1E 090D-T-AC70 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC71 4030009730 S.CERAMIC C1005 CH 1E 090D-T-AC72 4030009840 S.CERAMIC C1005 CH 1E 060D-T-AC101 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC102 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC103 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC106 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC107 4030009740 S.CERAMIC C1005 CH 1E 100D-T-AC109 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC110 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC111 4030009800 S.CERAMIC C1005 JB 1E 471K-T-AC112 4030009800 S.CERAMIC C1005 JB 1E 471K-T-AC113 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC114 4030009820 S.CERAMIC C1005 JB 1C 103K-T-AC115 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC116 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC117 4030008920 S.CERAMIC C1608 JB 1C 473K-T-AC118 4030009770 S.CERAMIC C1005 CH 1E 220J-T-AC119 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC120 4030009820 S.CERAMIC C1005 JB 1C 103K-T-AC121 4030009820 S.CERAMIC C1005 JB 1C 103K-T-AC122 4030008920 S.CERAMIC C1608 JB 1C 473K-T-AC123 4030009000 S.CERAMIC C2012 JB 1C 224K-T-AC124 4550003290 S.TANTALUM TESVA 0G 475M1-8LC125 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC126 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC151 4510005370 S.ELECTROLYTIC ECEV1AA221PC152 4030008920 S.CERAMIC C1608 JB 1C 473K-T-AC153 4550003080 S.TANTALUM TEMSVA 1A 335M-8LC154 4030011320 S.CERAMIC C1005 CH 1E 470J-T-AC155 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC156 4510004640 S.ELECTROLYTIC ECEV1CA470SPC157 4550003290 S.TANTALUM TESVA 0G 475M1-8LC158 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC159 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC160 4510007120 S.ELECTROLYTIC ECEV1AA101SPC161 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC162 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC201 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC202 4030011300 S.CERAMIC C1005 CH 1E 121J-T-AC203 4030009740 S.CERAMIC C1005 CH 1E 100D-T-AC204 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC205 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC206 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC207 4030009770 S.CERAMIC C1005 CH 1E 220J-T-AC300 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC301 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC302 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC303 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC400 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC402 4030011660 S.CERAMIC C1005 CH 1E 020B-T-AC403 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC404 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC405 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC406 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC407 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC408 4030009760 S.CERAMIC C1005 CH 1E 150J-T-AC409 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC410 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC411 4030009700 S.CERAMIC C1005 CH 1E 050C-T-AC412 4030011670 S.CERAMIC C1005 CH 1E 2R5B-T-AC413 4030006900 S.CERAMIC C1608 JB 1E 103K-T-AC414 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC415 4030009810 S.CERAMIC C1005 JB 1E 102K-T-A

C416 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC501 4030011320 S.CERAMIC C1005 CH 1E 470J-T-AC601 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC604 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC605 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC606 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC607 4030011660 S.CERAMIC C1005 CH 1E 020B-T-AC608 4030011660 S.CERAMIC C1005 CH 1E 020B-T-AC609 4030011660 S.CERAMIC C1005 CH 1E 020B-T-AC610 4030009720 S.CERAMIC C1005 CH 1E 080D-T-AC611 4030011650 S.CERAMIC C1005 CH 1E 1R5B-T-AC612 4030009700 S.CERAMIC C1005 CH 1E 050C-T-AC613 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC614 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC615 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC616 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC617 4030009710 S.CERAMIC C1005 CH 1E 070D-T-AC618 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC620 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC621 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC622 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC800 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC801 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC802 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC803 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC900 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC901 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC902 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC910 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC911 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC912 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC913 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC914 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC915 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC916 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC917 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC918 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC919 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC920 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC921 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC922 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC923 4030009810 S.CERAMIC C1005 JB 1E 102K-T-A

J1 6510018480 S.CONNECTOR IL-WX-30SB-VF-B-E1000J2 6510018630 S.CONNECTOR 08-6210-030-010-800J3 6510018180 S.CONNECTOR 52365-0690

EP1 0910051211 PCB B 5216A

IC1 1140007770 S.IC M38267M8L-219-GP[USA-3] only

1140005840 S.IC M38267M8L-155-GP [Other]IC2 1180001240 S.IC S-81335HG-KI-T1IC3 1110003380 S.IC S-80730SL-AT-T1IC12 1110004110 S.IC BA4510F-T1IC13 1110002700 S.IC NJM2904M-T1IC15 1140005620 S.IC X25080SI-2.7T6

Q1 1590001140 S.TRANSISTOR UN9210 (TX)Q4 1590001170 S.TRANSISTOR XP1501-(TX).ABQ5 1520000460 S.TRANSISTOR 2SB1132 T100 RQ10 1550000010 S.FET 2SJ364-Q (TX)Q12 1590001190 S.TRANSISTOR XP6501-(TX).ABQ30 1590001690 S.TRANSISTOR UN9115 (TX)Q31 1590001150 S.TRANSISTOR UN9211 (TX)Q32 1520000430 S.TRANSISTOR 2SB1462-R (TX)Q34 1590001860 S.TRANSISTOR UN9215 (TX)Q35 1590001860 S.TRANSISTOR UN9215 (TX)Q36 1590001860 S.TRANSISTOR UN9215 (TX)Q40 1590001470 S.TRANSISTOR UN9213 (TX)Q42 1590001150 S.TRANSISTOR UN9211 (TX)

6 - 5

REF ORDER DESCRIPTIONNO. NO.

[2F UNIT]REF ORDER DESCRIPTIONNO. NO.

[2F UNIT]

REF ORDER DESCRIPTIONNO. NO.

[LOGIC UNIT]

Page 21: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

S.=Surface mount

Q44 1590001860 S.TRANSISTOR UN9215 (TX)Q45 1590001690 S.TRANSISTOR UN9115 (TX)

D1 1790001250 S.DIODE MA2S111-(TX)D3 1790001250 S.DIODE MA2S111-(TX)D4 1790000990 S.ZENER MA8051-H (TX)D6 1790001250 S.DIODE MA2S111-(TX)D7 1790001250 S.DIODE MA2S111-(TX)D8 1790001200 S.DIODE MA6S121 (TX)D11 1160000050 S.DIODE DAP202U T107 [ITA], [SEA]

1750000240 S.DIODE DA112 T107 [EUR], [USA-3]D12 1750000220 S.DIODE DA113W T107 [ITA]

1750000240 S.DIODE DA112 T107 [SEA], [USA-3]D14 1790001250 S.DIODE MA2S111-(TX)

[EUR], [SEA], [USA-3] onlyD15 1160000050 S.DIODE DAP202U T107

[EUR], [SEA], [USA-3]1750000240 S.DIODE DA112 T107 [ITA]

D16 1790001250 S.DIODE MA2S111-(TX) [USA-3] onlyD19 1790001250 S.DIODE MA2S111-(TX)

X1 6050009620 S.XTAL CR-534 (5.039 MHz)

R2 7030003580 S.RESISTOR ERJ3GEYJ 153 V (15 kΩ)R10 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)

[EUR], [ITA], [SEA]R11 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)R12 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)R38 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)R41 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)R42 7030003630 S.RESISTOR ERJ3GEYJ 393 V (39 kΩ)R43 7030003630 S.RESISTOR ERJ3GEYJ 393 V (39 kΩ)R44 7030003550 S.RESISTOR ERJ3GEYJ 822 V (8.2 kΩ)R45 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)R46 7030003580 S.RESISTOR ERJ3GEYJ 153 V (15 kΩ)R47 7030003700 S.RESISTOR ERJ3GEYJ 154 V (150 kΩ)R48 7030003750 S.RESISTOR ERJ3GEYJ 394 V (390 kΩ)R140 7030003620 S.RESISTOR ERJ3GEYJ 333 V (33 kΩ)R141 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)R142 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)R143 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)R144 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)R145 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)R146 7030003400 S.RESISTOR ERJ3GEYJ 471 V (470 Ω)R147 7310002600 S.TRIMMER RV-110 (RH03A3AS4X0AA) 473R148 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 kΩ)R149 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)R151 7030003590 S.RESISTOR ERJ3GEYJ 183 V (18 kΩ)R152 7030003650 S.RESISTOR ERJ3GEYJ 563 V (56 kΩ)R153 7030003650 S.RESISTOR ERJ3GEYJ 563 V (56 kΩ)R154 7030003710 S.RESISTOR ERJ3GEYJ 184 V (180 kΩ)R155 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 kΩ)R156 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)R157 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)R158 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)R159 7030003610 S.RESISTOR ERJ3GEYJ 273 V (27 kΩ)R160 7030003700 S.RESISTOR ERJ3GEYJ 154 V (150 kΩ)R161 7030003200 S.RESISTOR ERJ3GEYJ 100 V (10 Ω)R162 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)R181 7030003760 S.RESISTOR ERJ3GEYJ 474 V (470 kΩ)R183 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)R184 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)R185 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)R186 7030003760 S.RESISTOR ERJ3GEYJ 474 V (470 kΩ)R187 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)R190 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)R196 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)R197 7030005840 S.RESISTOR RR0510R-473-D (47 kΩ)R198 7030005840 S.RESISTOR RR0510R-473-D (47 kΩ)R200 7030003760 S.RESISTOR ERJ3GEYJ 474 V (470 kΩ)R205 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)R207 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)R208 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)R209 7030005840 S.RESISTOR RR0510R-473-D (47 kΩ)R210 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)R211 7030003760 S.RESISTOR ERJ3GEYJ 474 V (470 kΩ)R213 7030003670 S.RESISTOR ERJ3GEYJ 823 V (82 kΩ)R214 7030003670 S.RESISTOR ERJ3GEYJ 823 V (82 kΩ)R215 7030003670 S.RESISTOR ERJ3GEYJ 823 V (82 kΩ)

R216 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)R218 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)R219 7030003840 S.RESISTOR ERJ3GEYJ 225 V (2.2 MΩ)R220 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)R221 7030005520 S.RESISTOR RR0816R-334-D (330 kΩ)R222 7030005970 S.RESISTOR RR0816R-683-D (68 kΩ)R223 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)R224 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)R230 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)R231 7410000710 S.ARRAY EXB-V8V 224JV (220 kΩ)R233 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)R234 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)R235 7030005110 S.RESISTOR ERJ2GEJ 224 X (220 kΩ) R236 7030005110 S.RESISTOR ERJ2GEJ 224 X (220 kΩ) R237 7030005110 S.RESISTOR ERJ2GEJ 224 X (220 kΩ) R238 7030005110 S.RESISTOR ERJ2GEJ 224 X (220 kΩ) R240 7030003690 S.RESISTOR ERJ3GEYJ 124 V (120 kΩ)R241 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)R242 7030003760 S.RESISTOR ERJ3GEYJ 474 V (470 kΩ)R302 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)

[EUR] onlyR304 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)

[ITA] onlyR309 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)

[SEA] onlyR336 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)

[USA-3] only

C5 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC6 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC15 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC17 4510005900 S.ELECTROLYTIC ECEV0GA101SRC18 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC19 4030006900 S.CERAMIC C1608 JB 1E 103K-T-AC20 4550006120 S.TANTALUM TEMSVA 0G 226M-8LC21 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC22 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC23 4550006780 S.TANTALUM TEMSVB2 0J 476M-8RC36 4030008920 S.CERAMIC C1608 JB 1C 473K-T-AC40 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC41 4030006870 S.CERAMIC C1608 JB 1H 222K-T-AC42 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC43 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC44 4030006900 S.CERAMIC C1608 JB 1E 103K-T-AC45 4030006900 S.CERAMIC C1608 JB 1E 103K-T-AC80 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC81 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC82 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC83 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC84 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC87 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC91 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC92 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC93 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC130 4030009800 S.CERAMIC C1005 JB 1E 471K-T-AC131 4030006900 S.CERAMIC C1608 JB 1E 103K-T-AC132 4030008920 S.CERAMIC C1608 JB 1C 473K-T-AC133 4550003290 S.TANTALUM TESVA 0G 475M1-8LC136 4030009000 S.CERAMIC C2012 JB 1C 224K-T-AC137 4030006850 S.CERAMIC C1608 JB 1H 471K-T-AC138 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC139 4030006880 S.CERAMIC C1608 JB 1H 472K-T-AC140 4030006850 S.CERAMIC C1608 JB 1H 471K-T-AC141 4550003290 S.TANTALUM TESVA 0G 475M1-8LC142 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC143 4030007140 S.CERAMIC C1608 CH 1H 121J-T-AC145 4030006880 S.CERAMIC C1608 JB 1H 472K-T-AC146 4030006870 S.CERAMIC C1608 JB 1H 222K-T-AC147 4030010040 S.CERAMIC C1608 JB 1H 561K-T-AC148 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC149 4550006780 S.TANTALUM TEMSVB2 0J 476M-8RC154 4030008920 S.CERAMIC C1608 JB 1C 473K-T-AC155 4030009650 S.CERAMIC C1608 CH 1H 240J-T-AC156 4030007060 S.CERAMIC C1608 CH 1H 270J-T-AC157 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC166 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC167 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC168 4030006860 S.CERAMIC C1608 JB 1H 102K-T-AC169 4030009980 S.CERAMIC C1608 JB 1H 152K-T-AC170 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC171 4030008910 S.CERAMIC C1608 JB 1C 393K-T-A

6 - 6

REF ORDER DESCRIPTIONNO. NO.

[LOGIC UNIT]REF ORDER DESCRIPTIONNO. NO.

[LOGIC UNIT]

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S.=Surface mount

C172 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC173 4030006870 S.CERAMIC C1608 JB 1H 222K-T-AC174 4030009820 S.CERAMIC C1005 JB 1C 103K-T-AC175 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC178 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC179 4030007130 S.CERAMIC C1608 CH 1H 101J-T-AC180 4030011600 S.CERAMIC C1608 JB 1C 104KT-NC181 4030006900 S.CERAMIC C1608 JB 1E 103K-T-AC200 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC201 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC202 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC203 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC204 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC205 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC206 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC207 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC208 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC209 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC210 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC211 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC212 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC213 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC214 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC215 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC216 4030009810 S.CERAMIC C1005 JB 1E 102K-T-AC217 4030009810 S.CERAMIC C1005 JB 1E 102K-T-A

J1 6510018630 S.CONNECTOR 08-6210-030-010-800

DS1 5010000160 S.LED LNJ310M6URADS2 5010000160 S.LED LNJ310M6URADS3 5010000150 S.LED LT1EP53ADS4 5030001230 LCD LD-BU4323J

S1 2220000560 S.SWITCH SSSS812-B1S2 2230000900 S.SWITCH JPM1990-2013R

SP1 2510000840 SPEAKER CS028014-12

W1 8900005320 FFC OPC-519W2 9045995030 WIRE 71/98/020/X98/X98

EP1 0910047181 PCB B 4790AEP2 8930037201 LCD CONTACT SRCN-1600 ZNN-1

6 - 7

REF ORDER DESCRIPTIONNO. NO.

[LOGIC UNIT]

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7 - 1

SECTION 7 MECHANICAL PARTS AND DISASSEMBLY

Screw abbreviations A, B0, BT: Self-tappingPH: Pan headFH: Flat headBiH: Bind headNI: NickelSUS: StainlessZK: Black

REF. NO. ODER NO. DESCRIPTION QTY.

J1 6510018560 Antenna connector BNC-R128 (incl. nut) 1

MP1 8210013462 1600 rear panel (A)-2 1MP2 8310034261 1460 contact base-1 1MP3 8010017660 2207 chassis 1MP4 8930035131 Spring (V)-1 1MP5 8930033760 1460 release plate 1MP6 8930033771 1460 release button 1MP7 8930033820 1460 contact spring 1MP8 8610010171 Knob N248-1 [DAIL] 1MP9 8610010180 Knob N249 [VOL] 1MP10 8930035410 1460 contact rubber 3MP11 8930035520 1459 rear plate 1MP12 8930036200 1600 DC cap 1MP13 8810008750 Screw PH BT 2 x 15 ZK 4MP14 8810008970 Screw FFH BT No.0 2 x 3.5 NI-ZU 2MP15 8810008970 Screw FFH BT No.0 2 x 3.5 NI-ZU 3MP16 8810008970 Screw FFH BT No.0 2 x3.5 NI-ZU 1MP17 8810009180 Screw FFH BT No.0 2 x 5 NI-ZU 2MP18 8810008970 Screw FFH BT No.0 2 x 3.5 NI-ZU 2MP19 8810006790 Screw PH No.0 2 x 3.5 ZK 1MP20 8810008760 Screw PH BT 2 x 8 NI-ZU 2MP21 8830000570 VR nut (A) 1MP23 8810006650 Screw PH B0 No.0 1.4 x 2.5 3MP24 9910005730 Screw BuH 3 x 3 ZK BS 2MP28 8860040300 1810 earth spring 1MP29 8930036190 1600 MIC cap 1MP30 8930039830 Thermal sheet (D) 2MP31 8930040410 Insulating plate (E0) 2MP33 8860001030 1810 ANT rug 1MP34 8930040350 1810 EMC plate 1MP35 8510012130 2207 EMC plate 1

[CHASSIS PARTS]

REF. NO. ODER NO. DESCRIPTION QTY.

J901 6450000130 Connector HSJ1102-01-540 [MIC] 1J902 6450001060 Connector HSJ1493-01-010 [SP] 1J903 6450000870 Connector HEC2711-01-020 [DC13.5V] 1

S1 7600000190 Encoder/VR TP96D96E20-15F-10KA-1810 1[DIAL/VOL]

MP1 8510012060 2207 shield plate 1MP2 8930048430 Insulating plate (F0) 1

[1F UNIT]

REF. NO. ODER NO. DESCRIPTION QTY.

MP401 8410002260 2207 heat sink 1

[PA BOARD]

REF. NO. ODER NO. DESCRIPTION QTY.

W1 8900005320 Flat cable OPC-519 1

DS4 5030001230 LCD LD-BU4323J 1

EP2 8930037201 LCD contact SRCN-1600 ZNN-1 1

MC1 7700001750 Microphone EM-123TH 1

MP1 8210012470 1600 reflector 1MP2 8930039160 1810 10-key 1MP3 8930039130 1810 PTT button 1MP5 8930036150 1600 LCD holder 1MP9 8930039140 1810 PTT plate 1MP10 8810008970 Screw FFH BT No.0 2 x 3.5 NI-ZU 4MP11 8510009790 1600 ground plate 1MP12 8930036630 1600 SP sheet 1MP13 8210015800 1810 front panel 1MP15 8930039120 1810 lock button 1MP16 8860001050 1810 LOGIC rug 1

SP1 2510000840 Speaker CS028014-12 1

[LOGIC UNIT]

REF. NO. ODER NO. DESCRIPTION QTY.

MP301 8510010370 1810 VCO case 1

[DUAL VCO BOARD]

REF. NO. ODER NO. DESCRIPTION QTY.

EP1 Optional product ANTENNA FA-1443B [USA-3] 1Optional product ANTENNA FA-B270C [other] 1

EP2 Optional product BATTERY CASE BP-170 [SEA] 1Optional product BATTERY PACK BP-173 [USA-3] 1Optional product BATTERY PACK BP-180 [EUR], [ITA] 1

EP3 Optional product CHERGER BC-110A [USA-3] 1Optional product CHERGER BC 110D [EUR], [ITA] 1

MP1 8010011960 Handstrap HK-005 1MP3 8010008620 752 belt clip 1

[UNPACKING]

EP1 EP2

EP3

MP1 MP3

Antenna for U.S.A.version differs from that shown above.

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7 - 2

UNIT abbreviation (C): CHASSIS PARTS, (L): LOGIC UNIT, (PA): PA UNIT, (D): DIAL VCO UNIT, (1F): 1F UNIT

MP15 (L)

MP3 (L)

MP9 (L)

MP5 (L)

MP2 (L)

DS4 (L)

EP2 (L)

MP1 (L)

MP16 (L)

MP10 (L)

MP10 (L)

MP33 (C)

MP1 (C)

MP8 (C)

MP9 (C)

MP21 (C)

MP13 (C)

MP13 (C)

MP13 (C)

MP12 (C)

MP29 (C)

MP1 (1F)

MP2 (1F)J902 (1F)

S1 (1F)

J903 (1F)

MP301 (D)

J901 (1F)

MP19 (C)

MP24 (C)

MC1 (L)

W1 (L)

J1 (C)

J1 (C)LOGIC UNIT

MP11 (L)

SP1 (L)

MP12 (L)

MP13 (L)

MP15 (C)

MP401 (PA)

MP28 (C)

MP20 (C)

MP30 (C)

MP31 (C)

MP3 (C)

MP15 (C)

MP14 (C)

MP18 (C)

MP18 (C)

MP17 (C)

MP11 (C)

MP6 (C)

MP2 (C)

MP10 (C)

MP16 (C)

MP23 (C)

MP34 (C)MP7 (C)

MP4 (C)

MP5 (C)

MP20 (C)

2F UNIT

1F UNIT

MP35 (C)

Page 25: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

SECTION 8 SEMI-CONDUCTOR INFORMATION

8 - 1

2SA1588 GR(Symbol: ZG)

2SC4081 S(Symbol: BS)

2SC5006(Symbol: 24)

2SJ346 Q(Symbol: 4MQ)

HAT1024 R(Symbol: 1024)

UN9114(Symbol: 6D)

UN9213(Symbol: 8C)

XP1213(Symbol: 9L)

XP1501(Symbol: 5R)

XP6501 AB(Symbol: 5N)

UN9215(Symbol: 8E)

UN921L(Symbol: 8Q)

XP1114(Symbol: 7Q)

XP1115(Symbol: 9L)

UN9115(Symbol: 6E)

UN9210(Symbol: 8L)

UN9211(Symbol: 8A)

2SK880 Y(Symbol: XY)

2SK3074(Symbol: UW)

2SK3075(Symbol: UB F)

DTC114 TU(Symbol: 04)

2SC5107 O(Symbol: MFO)

2SC5108 Y(Symbol: MC)

2SC5226 4(Symbol: LN4)

2SD2216 S(Symbol: Y)

2SC4215 O(Symbol: QO)

2SC4226 R25(Symbol: R25)

2SC4228 R45(Symbol: R45)

2SC4403 3(Symbol: LY3)

2SB1132 R(Symbol: BARB)

2SB1201 S(Symbol: B1201)

2SB1462 R(Symbol: BR)

2SC3356 R25(Symbol: R25)

• TRANSISTOR AND FET’S

S

D

G

B

E

C

B

E

C

B1

E

B2

C1

C2

E1

E2

B2

C1

B1

C2

B

E

C

D2

D2

D1

D1

G2

S2

G1

S1

B

E

C

B

C

EE

C

B

E

C

B

E

C

B

E

C

B

E

C

B

B

E

C

B

E

C

B

E

C

B

E

C

B

E

C

B

E

C

B

E

C

B

E

C

S

D

G

B

E

C

B

E

C

B

E

C

B

E

C

B

E

C

B1

E

B2

C1

C2

G

S

D

G

S

D

1SV271(Symbol: TG)

MA8051H(Symbol: 5^1)

MA2S077(Symbol: S)

MA8030H(Symbol: 3^0)

MA8043L(Symbol: 8^2)

MA2S111(Symbol: A)

MA2S728(Symbol: B)

MA304(Symbol: 7R)

MA6S121(Symbol: M2D)

HVU350(Symbol: 4)

DA112(Symbol: AZ)

MA132WA(Symbol: MO)

DA113(Symbol: AY)

MA132WK(Symbol: MU)

DAP202U(Symbol: P)

MA133(Symbol: MP)

• DIODES

RB060L-40(Symbol: 36)

C

A

C

A

C1

C2

A

C1

C2

A K

A1

A2

C1,A2

A1

C2

Page 26: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

SECTION 9 BOARD LAYOUTS

9 - 1

DS1

DS

4 MC1

DS3

DS2

C91

C92

C93

S1C

81C

80 C83

C82

9 - 1 LOGIC UNIT • TOP VIEW

Page 27: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

9 - 2

R30

9

R30

7

R30

5

R30

4

R30

2

R30

1R

311

R30

3

R31

6

R31

9

R31

5

R32

1

R32

5

R33

1

R33

6

R33

5

B4790A

10 9 8 7 6 5 4 3 2 1

+10

+20

+30

C23

Q5

C20

IC3

D8

C14

9

C13

6

HD

22

D11

D15

D12

IC2

C22

C21 C44

C45

C40

R46

R44

R190

R45

C42

R48

R47

R41

R38

C41

R43

R42

R146

R142

C173R223

R218R145

C132

C13

9

R14

4

R21

9

R16

0R

157

R16

1

R154

C143Q30

R156

R158

C137

C140

R20

5

Q32

Q31

C13

8 C13

1

C145

C14

2

R14

8

R149

R14

7

R162

C146

R152

R151

C148

C147

R159

R153

R15

5

C133

C36

R19

6

C43

C16

8

R22

4

R11

C18

Q42

C157

D19

C20

7

R207

Q4

C141

Q12

Q10

Q40

C208

R12

C19

C15

C16

9

C17

0

C18

0

Q45

C17

2

C17

8

R216

R240R215

R21

3

R21

4

R24

2

R18

7

C17

9C

181

C15

4

R18

1

R18

6

C206

R24

1

R211

C171

D3

IC13

IC12

HD

17

D13D16

D7

D14

C17

J1

IC1

C20

9

C130

C21

0

R141R210

R197

R19

8

R17

4

R209

C5

C6

R230

C175

R10R14

0

D4R143

C20

2

C20

1

C21

7

C21

6

C21

3

C21

4

C21

2

C21

1

R18

5

Q35 Q34

R184

R22

1

R23

3

R22

2

C20

4

C20

3

C21

5

C200

C16

7 R236

R238

R23

5

R23

7

D1

Q1

R2

SP

E

C16

6

R23

1

IC15

C84

D6

R205

C155

R22

0R

200

R234

R185

R20

8

Q44

Q36

C87

C156

S2

GN

DG

ND

SD

NO

ISE

DE

TO

TX

SE

LH

/LV

CC

SH

IFT

TX

CH

VC

O+

3CLV

CO

VR

3U

R3

AM

DIU

DD

ICK

RE

MO

TE

PD

A/U

LP

LCK

PLS

TA

FO

NIN

TS

PS

PE

EX

TM

ICM

OD

AF

300

800

FROM 2F UNIT J2J1

30 1

• BOTTOM VIEW

Page 28: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

9 - 3

R15

5C152

R15

1

R15

3

C15

5C

154

R16

1

R15

2

R15

6

R15

7

C15

3

Q151 C61

5

R60

9

C156

C160

IC301 L53L54 L55

R50

4

L102

SQL

CP1

IC151

FI201

J2

C92

1

C92

0

C919

R16

1

Q152

C15

9

C15

7

R16

0

R15

9

R158

C15

8 R16

2

C16

2 R31

0

R308 R314R

315

C917

C918

C62

2 C62

1

V U

C300

R30

3

R30

2R

304R31

6R

313

Q30

9

R300

Q30

7Q

310

Q30

6

R31

1

R30

9

R301 C30

3

C90

0 C302C501

R502

C916

C90

1

D30

2

D301

Q30

5R

306

MOD

S

B52

16A

C414

C415

C922

FI101

800300AF

MODEXTMIC

SPEINTSPAFONPLSTPLCK

PDA/ULREMOTE

DICKDIUDAMUR3VR3

LVCO+3C

HVCOTXC

SHIFTVCCH/L

TXSELDETONOISE

SDGNDGND

30

1

TO

LO

GIC

UN

IT J

1J2

FI401

9 - 2 2F UNIT • 2F UNIT (TOP VIEW)

C312

C32

2

C31

3

D304

C317

C314

R314R315

R307

R31

6

Q304

Q30

5

L304

D303

L302

L303

L301

D30

1

C32

5R

313

C31

6

C31

5

C31

9

R319D302

C302 C30

1

R320

C308

R306

R305

R30

2

C311

C304

C306

C305

C30

3

R303

R304

C31

8

C32

3

C30

7

Q302 Q30

1

C32

4

R31

2

R31

1

LO O

UT

VC

O3

GN

D

VV

CO

3

UV

CO

3

VLV

VS

HIF

T

VM

OD

US

HIF

T

ULV

• DUAL VCO BOARD (TOP VIEW)

Page 29: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

9 - 4

• 2F UNIT (BOTTOM VIEW)

C61

4

C60

7 R60

6

C609C608

R60

3

C60

7

R60

4

C605

L605

L604 L6

03

L606

C151

L607

L203

L202

Q60

1

C606

R60

8

R40

7

C617

C61

8

R61

0

C61

6

C611

C620R602

R60

5

C60

4

C20

1

L201

Q52

Q51

D52

R60

1

R20

6 D202

C610

R203

C61

3C

612

C20

3

R201

C55 R52 C58

C57

R51

R61

C69

C56

D902

C910

C913

Q90

1 R90

3

Q30

8

R31

2

R305

C301

R604

C59

R53

R54

R55

R56

R58

R57

R11

1

R10

8

C60

C107

C10

2 C11

9

C11

7

R50

6

C54

R202

C20

2Q

201

D201

Q602

D605

D604

D603

D601 D602

D903

D101

D607

D606

D403

D203

D400 D1

03

D102

D404

L609

L204Q

202

Q40

3 Q53

L401

L400

Q404

IC101

Q902

R406

IC60

1

C800

R401 R403

R405

R411R415

C411

C103

R410

C410

C803

C914

R12

1

R12

0

R12

3

C118

R115

R114

C125 C12

0R

117

R11

6

R11

8R

119

R12

2C12

1

C12

Q10

4

Q10

2

C124

C92

3

Q10

3

Q105

C10

6

D40

2

D401

C11

Q4 Q5

C123 C126

R5

C122

C413

C406

C406

C405

R40

8

R40

6

C40

2

C40

0

R61

2

R40

2

C416

C67

C65

R59

C63

C61

R101

R102

R110

R112 R113

C911

R906

C114

C10

1

C41

2

C11

5

C11

6

R90

5

R50

5

R10

5

R106

C90

2

C11

3C

915

C11

1

C11

0

C10

9

C91

2

D90

4

C11

2

R107

R104R103

R41

4 Q10

1

L101

R60

C40

8

C20

7

C40

3

R64

R62

C70

C71

C62

C72

C64

C68

D54

C66

Q40

1

IC102L403

R63

C20

4

R20

5

R207R

204

C20

5

C206C40

7

R404C404

C80

1C

802

Q40

0

J11

D53

URF

GND

800M

GND

GND

VRF

J3

D55

C60

1

EXTMICSPE

INTSPAFO

REMOTETXSELDIUDDICKAFV

PSETVTUNELVCO+3C

HVCOHV

LOAF

UMODGND

NMODPLSTPLCK

PDA/ULGND

2NDLOBTVCCPREFSHIFTTXCVCC

2

30 29

1

J1T

O IF

UN

IT J

904

J302

J301

Q30

6

R317

C32

1

R31

8

R32

1 C32

0

UV

CO

3V

VC

O3

GN

DV

CO

3LO

OU

TJ3015 1

FROM 1F UNIT

ULV

US

HF

ITM

OD

VS

HIF

TV

LV

J30251

FROM 1F UNIT

• DUAL VCO BOARD (BOTTOM

Page 30: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

9 - 5

L10

L12

L11

L51

Q201

L202

C27

0

L52

C21

0

L13

J905

J905

X851

J202

J902

J901

W5

L1

L725L5

52

C369

C907

R35

0

C16

C1

C733

C732

R731C

905

C736

C73

5

C73

4

R73

0R

732

D72

5

C17

C18

C21C20

C22

C24

C23

R1

D2

C21

6L2

05

C21

5C

209

L206

C21

3

R20

4

R20

2

C21

2 W2 C852 C37

3

R35

6

R35

7

C30

1

C35

4

R355

R37

3 D354

Q357

C360 C860

Q35

4

Q353 Q853 C355

C855

Q85

4

C85

7

C35

7

R364

R864

C37

2

L354

L201

C211

R20

5

R20

1

C206

R20

3

R208

R20

7

D202

C19

C51

C52

C53

R370

R371

R372

C37

5

C37

4

C35

1R

351

R260

C38

0

R374 C376 C37

7

C37

9

C37

8

L355

Q35

6L353

C55

4 C553

R21

0

D552

D201

D51

D351

D52

VR

F

GN

D

GN

D

800M

GN

D

UR

F

C101

Q253

C91

0

C10

2

S1

J904

J904

L900

1

C861

R362

R363

R863

R862

J903

C86

5UOUT

GND

VOUT

GND

VCC2

VGG2

VCC1

VGG1

GND

IN

LO O

UT

VC

O3

GN

D

VV

CO

3

UV

CO

3

VLV

VS

HIF

T

MO

D

US

HIF

T

ULV

EXTMICSPE

INTSPAFO

REMOTETXSELDIUDDICKAFV

PSETVTUNELVCO+3C

HVCOHV

LOAF

UMODGND

VMODPLSTPLCK

PDA/ULGND

2NDLOBTVCCPREFSHIFTTXCVCC

2

3029

1

J904

FR

OM

2F

UN

IT J

1

9 - 3 1F UNIT • 1F UNIT (TOP VIEW)

Q401

L401

R40

3

L403

L402

C401C402

C405

C40

6

C404

R402

C403

C40

7

L404

Q402

L405

L406

C410

C41

1C

409

HC408R40

1

IN

GN

D

VG

G1

VC

C1

VG

G2

VC

C2

GN

D

VO

UT

GN

D

UO

UT

C41

2

• PA UNIT (TOP VIEW)

Page 31: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

9 - 6

• 1F UNIT (BOTTOM VIEW)

R902

C90

9

Q70

3

C903

D702

L5

L6

Q70

2

C713

R701

D703

R702

C70

1

Q705

Q20

3

Q202

Q704C254

R261

R709R

209

C368

C367

C366

C901

C913C912

C914

D90

1L9

01

C23

5

R258

R25

9

R252R251

C232

C23

3

C85

9

R859R858

C851

R354

R35

8R

359

C35

6

R705

C709

L701

L703C

715

R70

6

C71

7

C71

6

C35

8C

359

C70

7

D701R36

1R

360

Q352 Q70

1

L702

Q35

1

L801

L352

Q85

2

D25

0

C23

6

C23

1

Q25

0

R250

C6

C7

IC250

C37

1

C37

0

C90

4

C90

6

R365

C8

D1

C55

1

C15

C13

C14

C552

D551

C5

C4

C2

C3

C9

L2

L7

L8

L9L7

24

L723

L551

L3

C10

C12

R728

R72

1

C72

4

C72

8

R72

6

R727

C911

C730

C727

R724

R262

R26

7

C21

4

R70

4

R70

8

R278 R285

R284

R283

C268

C71

4C26

7 R28

1

R28

2

R26

4

R710

R20

7

R26

3

C725

Q25

5R

266

L204

L203

D251

R265

D722

Q204

C11

D724D723

IC851

C71

1

C908

R86

8

C234

R86

7

R86

6

C86

3

R36

9

R364

Q355

R362

C361

C856

R352

D353

R36

6

R36

8

C35

0

C85

8

R86

1

R36

7

C36

5

C86

2

C86

4

D352

VLV

VS

HIF

T

MO

D

US

HIF

T

ULV

LO O

UT

VC

O3

GN

D

VV

CO

3

UV

CO

3

VGG2

VCC1

VGG1

GND

IN

UOUT

GND

VOUT

GND

VCC2

MP104

• PA UNIT (BOTTOM VIEW)

Page 32: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

SECTION 10 BLOCK DIAGRAM

10 - 1

D51: MA2S077D52: MA2S077PA BOARD

VT4CTRL

Q705: 2SA1588

VT4

D703: MA2S111

Q202: 2SA1588

T4REG+3C

VCCBANDSEL

TXSEL

Q203: UN9210

T4

Q304: 2SC5108Q305: 2SC5108

DUAL VCO BOARDQ702: 2SB1132Q703: 2SD2216D702: MA133

VHFSHIFTSW

Q354: UN9210

SHIFT

Q353:UN9115

LVCO

+3C

Q357:UN9115

LVCOCTRL

Q853:UN9115

VCOCTRL

D354:MA132WA

HVCOCTRLHVCO

Q854:UN9210

UHFSHIFTSW

V VCO

U VCO

Q301: 2SC5006Q302: 2SC5006

D302: MA2S077D301: HVU350

Q306: 2SC5108

Q351: 2SC5107

T4CTRL

TXC

Q704:UN9211

D353: MA2S077

Q852: 2SC4403

UT4CTRL

D352: MA2S077D351: MA2S077

Q701:2SC3356

Q201:2SC3356

BANDSW

VC

C1

VGG1

VGG2

D201: MA2S077Q401: 2SK3074 Q402: 2SK3075

VOUT

UOUT

VC

C2

D551: MA2S077Q204: UN921L

D722: 1SV271

TX RXVERSION

VERSION

144~146430~440EUR

APCSENS

Q201:2SC4226

FI201: EFCH445MWN [USA-3]EFCH435MWN [other]

R250: 0.15 1W

APCSET

VCC

IC301: TC4W53FUQ305: UN9210Q306: UN9213Q307: XP1114Q308: XP1213Q309: UN9114Q310: UN9210

D301: MA2S111D302: MA2S111

Q250: 2SC4081Q253: DTC114TUD250: MA8030

VCCAPC

Q255: 2SB1462D251: MA8043

VCC

Q202: 2SC4403

IC250: NJM2904M

Q400:2SC5107

FI101: CFWM450E

PLL IC

IC851: UPD3140GS

X851: CR-515

Q352: 2SC5107

REF15.2MHz

TUNECTRL

Q355:2SK880

Q356: 2SC4081

15.2MHz

Q4: XP1501Q5: 2SA1588D402: MA132WA

IF IC45.6MHz IC101:

TA31136FN2NDLO

DCSW

CHG

HV

FI401:FL-244

Q101:2SC4215

Q901: 2SB1132D902: MA133D904: SB07-03C

IF: 45.15 MHz

D903: MA2S728Q902: HAT1024R

Q401:2SC4403

D54: MA304Q51: 2SC5226D53: MA304Q52: 2SC4403

ITA

SEA

136~174400~470

140~150430~440

USA-3

EUR

ITA

SEA

USA-3

IC151: TA7368F

2F UNIT

(TO BATT)

+

VCC

Q10:2SJ364Q12: XP6501

CTCIN

R3.5

IC13:NJM2904MIC12:

BA4510F

VCC R3REG+3C

+3C

VCC

MICAMP

MUTESW

IC12:BA4510F

Q31:UN9211

D901: RB060L-40

HV REVERSVOLTPROTECT

MC1:EM-123TH

S2: JPM1990-2013R

SP1:CS028014-12

TXSENS

+3CPUREG

VCC

IC2: S-81335HG-KI

RESET

+3CREG

VCC

+3C

Q4: XP1501Q5: 2SB1132Q40: UN9213D3: MA2S111

D19: MA2S111Q42: UN9211IC3: S-80730SL-AT

LEDDRIVER

LEDDRIVER

VCC

VCC

5.039MHzX1: CR-534

Q34: UN9215

Q36: UN9215Q44: UN9215

Q1: UN9210D1: MA2S111

LIGHT

NO

ISE

DS2: LNJ310M6URADS1: LNJ310M6URA

DS3:LT1EPS3A

AFREG

VCC

AF

ON

Q151: 2SB1201Q152: XP1501

VOL

1F UNIT

TP96D96E20-15F10KA

SENS

INITIALMATRIX

KEY

CPU

EEPROM

IC1M38267M8L-219GP [USA-3] onlyM38267M8L-155GP [Other]

DS4: LD-BU4323J

CTCOUT

DTMF

Q32:2SB1462

LOGIC UNIT LCD

IC15: X25080SI-2.7

D303: MA304D304: MA2S077

BUFF

LOOPFIL

LOOPFIL

BUFF

x3

LPFMIC

PROTECT

D4:MA8051

MICREG

Q30:UN9115

-3C

LPF

LPF

CTCREG

BPF DRIVEAMP

AFMUTE

DETSW

IFAMP

XTALBPF

LOAMP

BPF

RX LOFREQUENCY

LOAMP

LOAMP

TXSW

RXSW

BUFF

BUFF

AF AMP

Q35: UN9215

BPF

BPF

BPFRFAMP

RFAMP

RFAMP

D52: MA304

APCCTRL

DRIVEAMP

PWRAMP

LPF

HPF

D701: MA2S077LPF

LPF HPF

TXSW

ANTSW

ANTSW

D724: 1SV308D723: 1SV308D552: MA2S077

LIMITTER

LIMITTER

CLONESW

VR3VREG

UR3VREG

Q404: UN9115D400: MA2S077

D202: MA2S077Q403: UN9115

D203: MA2S077

R3.5

VR3

VR3V R3.5

UR3UR3V

Q45:UN9115

IC102: TC4S66F

COMMON

RX

DATA BUS

TX

144~148430~450

144~146430~440

136~174400~470

118~174430~440

118~174400~470

FREQUENCY

RX LOFREQUENCY

189.15~191.15384.85~394.85181.15~219.15354.85~424.85163.15~219.15354.85~424.85163.15~219.15384.85~394.85

D202: MA2S077

VT4

D725: 1SV271

D201: 1SV271

D55: 1SV271

REMOTE

T4

D6: MA2S111D7: MA2S111D8: MA2S111

ANT

Page 33: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

SECTION 11 VOLTAGE DIAGRAM

11 - 1

• LOGIC UNIT

SE

G31

SE

G30

SE

G29

SE

G28

SE

G27

SE

G26

SE

G25

SE

G24

SE

G23

SE

G22

SE

G21

SE

G20

SE

G19

SE

G18

SE

G17

SE

G16

SE

G15

SE

G14

SE

G13

SE

G12

SE

G11

SE

G10

SE

G9

SE

G8

SE

G7

SE

G6

SE

G5

SE

G4

SE

G3

SE

G2

SE

G1

SE

G0

S21

S22

S23

S24

S25

S26

S27

S28

S29

S30

S31

S32

S33

S34

S35

S36

S37

S38

S39

S40

S41

S42

S43

S44

S45

S46

S47

S48

S49

S50

S51

S52

C1

C2

C3

C4

1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 1910 20 21 22 23 24 25 26 27 28 29 35 3630 31 32 33 34

DS4 LD-BU4323J

CO

M0

CO

M1

CO

M2

CO

M3

CLO

NE

OU

T

CLONEIN

D1 MA2S111

Q1 UN9210

R215 k

VIN

RE

MO

TE

C212 0.001

C213 0.001

C214 0.001

C215 0.001

123456789101112131415161718192021222324252627282930

J1 0

8-62

10-0

30-8

00

AFMOD

PLCK

UR3

LVCO+3C

800300

PLST

DICKDIUD

VR3

REMOTEPDA/UL

C211 0.001

C1660.001

C1670.001

SP1CS028014-12

R221330 k

R22268 k

VCC

+3C

C2090.001

R11 10 k

C210.1

C180.001

D3 MA2S111

R1210 k

C220.001

321

5

Q4 XP1501 AB

C190.01C168

0.001

Q5 2SB1132 R

C17100

R2241 MR207

220 k

C2022

C2347

IC2 S-81335HG-KI

R1904.7 k

1

VD

D

2

VS

S

3

NC

4

NC

5

IC3S-80730SL-AT

C150.001

AF

ON

AM

UR

3

H/L

300

800

C157 0.1

Q42 UN9211

D19MA2S111

+3CPU

+3C

P67

/AN

7P

66/A

N6

P65

/AN

5P

64/A

N4

P63

/SC

LK22

/AN

3P

62/S

CLK

/21A

N2

P61

/SO

UT

2/A

N1

P60

/SIN

2/A

N0

1 2 3 4 5 6 7 8

P57

/AD

T/D

A2

9

P56

/DA

110

P55

/CN

TR

111

P54

/CN

TR

012

P53

/RT

P1

13

P52

/RT

P0

14

P51

/PW

M1

15

P50

/PW

M0

16

P47

/SR

DY

117

P46

/SLC

K1

18

P45

/TX

D19

P44

/RX

D20

P43

/ /T

OU

R21

P42

/INT

222

P41

/INT

1P

40P

77

23 24 25

VL1100C1 99C2 98VL2 97VL3 96COM0 95COM1 94COM2 93COM3 92AVSS 91VREF 90VCC 89SEG0 88SEG1

87SEG2

86SEG3

85SEG4

84SEG5

83SEG6

82SEG7

81SEG8

80SEG9

79SEG10

78SEG11 77SEG12 76

P7626

P7527

P7428

P7329

P7230

P7131

P70/INT032

RESET33

XCIN34

XCOUT35

XIN36

XOUT37

VSS38

P2739

P2640

P25 41P24

42P23

43P22 44P21 45P20

46P17 47P16 48

P15/SEG39 49P14/SEG38

50

51525354555657585960616263646566676869707172737475

IC1M38267M8L-219GP [USA-3]M38267M8L-155GP [Other]

C50.001

R21010 k

C60.1

R230100 k

CO

NT

C2100.001

R19747 k

R20947 k

SEG12SEG11

COM3COM2 RESET

VR3

LVCO

MM/RM

BLED

I1I2

KR0

KR3

SHIFT

HVCOTXSEL

MICC

LIGHT

PTT

CFC

C15627 P

X1CR-534

R22010 k

C15524 P

ESIO

Q40UN9213

CS 1

SO 2

WP 3

VSS 4

SI5

SCK6

HOLD7

VCC 8

IC15 X25080SI-2.7

PCON

R205100 k

R2341 M

ESIO

C870.001

C2030.001

R2331 M

Q45 UN9115

R1871 M

R186470 k

C2080.001

HVCO

DETONOISE

GNDGND

H/L

SD

TXSEL

C200 0.001

C201 0.001

C202 0.001

C216 0.001

C217 0.001R2161 M

R211470 k

R21582 k

R21482 k

R21382 k

1

5678IC13 NJM2904M

R241100 k

C1810.01

C1800.1

C1720.1

R2192.2 M

C1730.0022

C1690.0015

C1700.1

C1710.039

C179100 P

R183100

DS3LT1EP53A

R240120 k

R242470 k

C1780.1

R208100

R184100

DS2LNJ310M6URA

DS1LNJ310M6URA

R185100

Q36UN9215

Q44UN9215

Q34 UN9215

Q35 UN9215

ECS

ECK

DIU

DD

ICK

PO

WE

R

I3

CO

NT

KS0

KS2KS3

KS1

KS4

CLO

NE

INC

LON

EO

UT

C2040.001

R2234.7 k

C2050.001

C174 0.01

C175 0.1

CT

CIN

VIN

CT

CO

UT

NO

ISE

LOC

K

KS

1K

S0

KS

2K

S3

KS

4D

TM

F

PC

ON

PD

A/U

L

PLS

T

SD

EC

S

PLC

K /E

CK

R19847 k

R30110 k

R31110 k

R32110 k

R33110 k

LOCK

LOC

K

KR3

S6

PO

WE

R

S1 SSSS812-B-1

R200470 k

R1010 k

KR3

R231220 k

R235220 k

R236220 k

R237220 k

R238220 k

Q10 2SJ364 Q

R381 M

R181470 k

C1540.047 R41

4.7 k

CTCIN

CTCOUT

PCON

DTMF

+3C

MM/RM

MICC

C360.047

C420.001

R218100 k

C440.01

C450.01

C430.1

R48390 k

R448.2 k

R4339 k

R4239 k

C400.001

C410.0022

R45 2.2 k R46 15 k

1 2 3

456

Q12 XP6501 AB

R47150 k

R15256 k

C1460.0022

EXTMIC

AF

MOD

R162100

R15927 k

R15356 k

C1360.22R146

470

1 2 3 4

65

78

IC12BA4510F

R149100

C1420.001

R15118 k

C1450.0047C143

120 P

MICC Q30 UN9115

R154180 k

R161 10

C2070.001

C14947

R1486.8 k

C147560 P

Q31 UN9211

MM/RM

MICC

R14033 k

C130470 P

C1310.01D4 MA8051 H

R196100 k

R14747 k

MC1 EM-123TH

C2060.001

BAND1BAND2

BAND3BAND4 TXFH

RXF2

TXFL

D14

D11

KR0KR1KR2

I1I2I3

KS0

KS1

KS2

C930.001

C920.001

C810.001

C800.001

TENKEY

2

5

H/L

D8MA6S121

KR

2

KR

1

KR

0

KSD4

KSD3

KR0KR1KR2

C910.001

VFO

MR

1

4

TONEMONI

KR

3

R33510 k

R32510 k

R33610 k

R30710 k

R30510 k

R30410 k

R30310 k

R30210 k

R31510 k

R31610 k

R31910 k

R30910 k

7

.

8

0

D7 MA2S111

D6 MA2S111

KSD1

KSD0

CALL

S.MW

D15D12

D16 MA2S111 KS3

KS4

C840.001

C830.001

C820.001

D17 MA2S111

R14410 k

R1421 k

AF

R1431 k

R1411 k

C1320.047

S2JPM1990-2013R

C137470 P

C1380.001

R1584.7 k

R1564.7 kC140

470 PC1414.7

C1480.001

Q32 2SB1462 R

R15547 k

R157100 k

C1390.0047C133

4.7

R145220 k

R160150 k

SE

G31

SE

G30

SE

G29

SE

G28

SE

G27

SE

G26

SE

G25

SE

G24

SE

G23

SE

G22

SE

G21

SE

G20

SE

G19

SE

G18

SE

G17

SE

G16

SE

G15

SE

G14

SE

G13

SE

G17

P30

/SE

G18

P31

/SE

G19

P32

/SE

G20

P33

/SE

G21

P34

/SE

G22

P35

/SE

G23

P36

/SE

G24

P37

/SE

G25

P00

/SE

G26

P01

/SE

G27

P02

/SE

G28

P03

/SE

G29

P04

/SE

G30

P05

/SE

G31

P06

/SE

G32

P07

/SE

G33

P10

/SE

G34

P11

/SE

G35

P12

/SE

G36

P13

/SE

G37

SE

G16

SE

G15

SE

G14

SE

G13

TXC

KR1

KR2

SEG10SEG9SEG8SEG7SEG6SEG5SEG4SEG3SEG2

SEG1SEG0

COM1COM0

3

6

9

BAND

KSD2

OU

T

4

OG

I

2 3 4

+

+

-

-

+

+

+

+++

EXTMICSPEINTSPAFON

AM

TXCSHIFTVCC

+-

C : 2.2

C : 13.2

C : 3.5

T: 3.5R: 0

SGLO: 0SGLC: 3.5

C : 3.5

T: 3.5R: 0

0.2 ns

2.0 v

Page 34: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

• 1F UNIT

11 - 2

VCC2R210100

L203 3225 µH

C207 18 P

C2067 P

D351 MA2S077

D352 MA2S077R35422 k

C8560.001

L8010.1 µH

R858120

R315220

R31647

C3160.001

C3180.001

R3146.8 k

VV

CO

3

Q305 2SC5108 Y C3240.001

R318100

C3152.5 P

R868680

C8620.1

R8666.8 k

VLV

C8641.5

R8673.3 k

ULV

C8610.001

C8630.001

D304MA2S077

C3130.001

C3220.001

R311 1 k

D303MA304

R319220 k

R320220

C3250.001

R3126.8 k

L3020.82 µH

VLV

VSHIFT

US

HIF

TU

LVM

OD

US

HIF

T

MO

D

L303LA-509

C3142.5 P

C3042.5 P

Q304 2SC5108 YC31227 P

12345

J302 IMSA-9230B-1-05Z064-T

C3170.001

R313100

VCO3

C3210.001

Q3062SC5108 Y

LOOUT

C32022 P

R31747 k

C3190.75 P

R321100

R30739

R30639

R35715

R35533LOOUT

VV

CO

3

UV

CO

3 UV

CO

3

GN

D

GN

D

C8570.001

C8580.001

R35615

VCO3

Q8522SC4403 3

R85922 k

12345

J301IMSA-9230B-1-05Z064-T

Q7032SD2216 S

Q3512SC5107 O

C7112.2

R7094.7K

D702MA133

C7130.001

Q704UN9211

TXC

+3C

Q7022SB1132 R

D353MA2S077

C3500.001

R861100

R3521.5 k

D201MA2S077

D701MA2S077

C2110.001

R2034.7 k

R208100

L2010.82 µH

C2130.001

R201100 L202

82 nH

R202150

W2

C2120.001

R20410

R20515 K

C2090.001

Q201 2SC3356 R25

L20618 nH

C2140.001

R2074.7 k

C21010

C4030.001

Q4012SK3074

C4040.001

Q4022SK3075

C4070.001 L404

25 nH

C40115 P

L4033.3 nH

C40527 P R403

330

R40247

L40260 nH

R401100

L40112 nH

D202 MA2S077

C2150.001

12345

J202IMSA-9230B-1-05Z003T

C2160.001

GND

GN

D

GND

VOUT

C7300.001

L2050.82 µH

D723MA2S077

D724MA2S077

L7230.22 µH L724

0.22 µHD7221SV271

UOUT

VC

C2

VO

UT

C4110.001

C40920 P

L4060.40-1.1-3TL

L40521 nH

C41056 P

UOUT

R72433

R72110

C9110.001

R28433

12345

J201 IMSA-9230B-1-05Z003T

C7270.001

VCC1

R2811 k

R282100 k

C27010

GND

C4060.001

VGG2

VG

G1

ININ

VCC1

GN

D

VG

G1

VG

G2

C4020.001

MP4012207 PA HEATSINK

PABOARD

C7075 P

L70318 nHC717

5 P

C7155 P

R70410

R70510 K

C7090.001

L2043225 µH

L70212 nH

C10210

Q701 2SC3356 R25R706

100

R71047

Q203UN9210

R2094.7 k

Q7052SA1588 GR

R701 4.7 k

D703MA2S111 C716

0.001

R708100

C7140.001

R7024.7 k

TXSEL

L70115 nH

Q2022SA1588 GR

C7010.001

C3230.001

C3060.001

C3050.001

C3070.001

Q3022SC5006

C308 0.75 P

R3054.7 k

R30468

DUAL VCO BOARD

D302MA2S077

D301 HVU350

R3022.2 k

Q3012SC5006

L3040.82 µH

L301LA-508

C3032.5 P

C30224 P

C30127 P

R3034.7 k

Q354UN9210

R364220 k

Q854 UN9210

C8600.1

R363220 k

C3600.1

R362150 k

R863 330 k

VMOD

SHIFT

UMOD

VSHIFT

R86233 k

R86447 k

C3750.001

Q3562SC4081 S

L3550.82 µH

L3540.82 µH

C3787 P

C3767 P

C3773 P

C3794 P2NDLO

R371330 k

C3749 P

R372100 k

C38027 P

C3110.001

R358100

C85522

C35522

C8650.001

C3540.001

W5

R2500.15

D250MA8030H

C2350.001

C2360.001

C2340.001

R25168 k

R25247 k

1 2 3 4

65

78

IC250 NJM2904M

R2654.7 k

R2611 M

R2642.2 k

C2540.001

R26715 k

R26310 k

Q2552SB1462 R

C2310.001

C2320.001

C1010.001

R26222 k

R266TBPS1R150K

C2680.001

VG

GC

R2851 k

R283100 k

C26710

R27810

C7280.001

R727150

C7240.001

HC725

Q204UN921L

R72610 k

R1 150

C230.001

C240.001

L130.82 µH

R72847 k

C2330.001

VCC

D251MA8043 L

R25815 k

R260100

R25910 k

Q253DTC114TU

PSET

PREF

TXC

Q2502SC4081

C8590.001

C3560.001

C3590.001

C3580.001

R36147

C3570.001

R360220

R35947 k

Q3522SC5107 O

X851CR-515

R365330

C3730.001

C3720.001

C37022 P

C37139 P

L3534.7 µH

C8510.1

C8520.1

C36920 P

VCC1 1

IN1 2

ENB 3

CLK 4

DATA 5

T1 6

LOK 7

CP1 8

FI1 9

FO1 10 FO2 11FI2 12

CP2 13GND2 14XO 15XI

16XB17VCC218IN219GND120

IC851 UPD3140GS

R37010 k

PLSTPLCK

R374 10 k

C36647 P

C36747 P

C36847 P

L352 4.7 µH

R3671.5 k

R368680

R36610 k C362

0.1C3610.001

R369100 k

C3650.001

C3643.3

Q853UN9115

Q3552SK880 Y

VT

UN

E

HV

CO

Q353UN9115 Q357

UN9115

R37347 k

D354MA132WA

LVC

O C3010.001

R3501 k

R35139

C3510.001

1

2

3

4

5

6

J90553264-0690

C5540.001

800M

URF

GND

C5538 P

D551MA2S077

D552MA2S077

C55210 P

C82 P

C150.001

D1MA2S077

D2MA2S077

L916 nH

C144 P

C13 1.5 P

C5517 P

L55112 nH

L55212 nH

C71 P

C61 P

L610 nH

L510 nH

L10.15 µH

C2100 P

C439 P

C129 P

L714 nH

C7320.001 L2

21 nHL330 nH

C18 P

C37 P

C515 P

C108 P

C11 0.5 P

L8

C9 1 P

W1

C2115 P

C1927P

C1722P

C220.001

L1039 nH

L1160 nH

L1247 nH

C162.5 P

C202 P C18

5 P

R73010

L7250.22 µH

D7251SV271

R731150 C734

0.001C7350.001

C73347 P

R73210 K

CHASSISUNIT

D52MA2S077

D51MA2S077

C5312 P

C5227 P

C5122 P

L5256 nH

L5156 nH

C7360.001

VRF

GN

DG

ND

EXTMICSPE

AFVPSET

HVCO

TXSELREMOTE

DIUDDICK

+3C

1357911131517192123252729 30

28262422201816141210

8642

J904 IL-WX-30PB-VF84-B

AFUMOD

VMODPLST

SHIFTTXC

LO

GND

PREFBTVCC

EXTMIC

SPE

HV

+3C

AFO

INTSP

J901HSJ1102-01-540

C90910

R902390

C9010.001

J903HEC2711-01-020

C9080.001

C9050.001

C9060.001

J902HSJ1493-01-010

S1DIUD

DICKAFAFV

L900 3225 µH

L9013225 µH C907

0.001

C9030.001

D901 RB060L-40

C91010

C90447 P

C9000.001

VCC

C9120.001

HV

C9140.001

C9130.001

+

+

+

+

+ +

+

INTSPAFO

VTUNELVCO

PLCKPDA/ULGND2NDLO

1

2

PDA/UL

+

REMOTE

+

+

+

+

+

C : COMMONVT : VHF TXUT : UHF TXVR : VHF RXUR : UHF RX

J1

C41210 P

VT: 0VR: 3.4

UT: 3.5UR: 0

UT: 1.80UR: 0.77

UT: 0.69UR: 0.69

UT: 2.30UR: 2.30

UT: 1.80UR: 1.80

VT: 0.72VR: 0.72

VT: 0.72VR: 0.72

VT: 1.94VR: 1.94

C: 3.5

C: 3.0

VT: 0.7UT: 0.75VR: 0.7UR: 0.8

C: 13.2

C: 0.65

VT: 1.39VR: 1.39

C: 0.75

VT: 0.7UT: 0.7VR: 0.7UR: 0.8

VT: 2.3UT: 2.3VR: 0UR: 0

VT: 3.9VR: 0

VT: 4.2UT: 4.2VR: 0UR: 0

VT: 12.5UT: 12.6VR: 13.2UR: 13.2

UT: 3.9UR: 0

VT: 12.4UT: 12.5VR: 13.2UR: 13.2

VT: 12.4UT: 12.5VR: 13.2UR: 13.2

C: 2.82

Page 35: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

• 2F UNIT

C4000.001

R40356

R4074.7 k

C1090.001

C1220.047

R12147 k

Q1032SD2216 S

Q105UN9115

R12022 k

R122220 k

C1210.01

C1130.001

R119100

R1181 k

R116470

Q1042SD2216 S

R11410 k

C1260.1

C1200.01

R11747 k

R115330 k

54

Q102XP1501 AB

C11822 P

C111470 P

C112470 P

R106220 k

R103 1 k

C110 0.1

R10482 k

1

3 4 5

FI101CFWM450E C403

0.001

FI401FL-244R414

470

C4122.5 P

L4031.8 µH

R4101 k

Q4012SC4403 3

Q403UN9115

L20412 nH

R205330

C4160.001

R415120 k

C2060.001

R2074.7 k

D203MA2S077

C20722 P

C202120 P L202

18 nH

C20310 P

R202150

C2040.001

R203220

R20468 k

R20133 k

R2063.3 k

Q4002SC5107 O

C4050.001

L4000.1 µH R404

27 k

C4060.001

C4070.001

R40582

D403MA2S077

L4016.8 nH

D404MA2A077

R4084.7 k

R406120

C402 2 P

C408 15 P

1357911131517192123252729 30

282624222018161412108642

J1 IL-WX-30SB-VF-B

AFUMOD

VMOD

EXTMICSPE

GND

LO

REMOTE

C4040.001

R4014.7 k

PLSTPLCK

SHIFTTXC

AFVPSET

HVCOHV

PREF+3C

DIUDDICK

TXSEL

BTVCC

C8020.001

C8030.001

C8000.001

C8010.001

L20115 nH

C6040.001

R60322 k

1

2

3

4

5

6

J352365-0690

C2010.001

800M

GND

GN

DG

ND

URF

D202MA2S077

R6014.7 k

D602MA2S077

C6010.001

R6023.3 k

D2011SV271

D601MA2S077

Q2012SC4226 R25

L20312 nH

L60315 nH

R604330

R605100

L60510 nH

L60410 nH

L60622 nH

C6130.001

D603MA2S077

R6062.2 k

Q6012SC4228 R45

C2050.001

1 2

345678

FI201EFCH445MWNP1 [USA-3]EFCH435MWNP1 [Other]

C6072 P

C6082 P

C6092 P

L60722 nH

GND 3GND 2

IN 1

OUT 4GND 5VCC 6

IC601UPC2748T D604

MA2S077

D607MA2S077

R6102.2 k

C6160.001

C6180.001

Q2022SC4403 3

R6124.7 k

D400MA2S077

D606MA2S077

L60947 nH

R402100 k

C6177 P

C4115 P

C4130.01

C4100.001

R411680

C10710 P

C1150.001

C1030.001

C1020.001

L1011.8 µH

R102470

R10147 k

C1010.001

Q1012SC4215 O

OS

CIN

1

OS

CO

UT

2

MIX

OU

T

3

VC

C

4

IFIN

5

DE

C

6

FILO

UT

7

FILIN

8

AF

OU

T

9

QU

AD

10

IFO

UT

11

RS

SI

12

N-D

ET

13

N-R

EC

14

GN

D

15

MIX

IN

16

IC101TA31136FN(D)

L102LS-510

54

3

2 1

IC102TC4S66F

R112470

C1160.001

R1051.5 kR123

1 M

C1230.22

C1250.001

C1190.1

C1170.047

C50147 P

C1244.7

C1140.01

R11310 k

R10815 k

R50210

R10722 k

R50515 k

R50615 k

R50420 k

R111 22 k

R11022 k

800

300

D401MA132WA

R64 10 kQ53UN9115

D605MA132WK

3

2

1

4

5

Q602XP1115

C6210.001

C6220.001

R6210 k

R63 10 k

C6060.001R608

4.7 k

R609100 k

C6150.001

C6140.001

R607100 k C605

0.001C6108 P

C611 1.5 P

C6125 P

C6200.001

R6110 k

D101MA2S077

C560.001

R5168 k

D52 MA304

Q512SC5226 4

C580.001

R52 100 kC590.001R53

68

L53 LS-518

VR

F

C55 0.001

C5410 P

D55 1SV271

C699 P

C5712 P

R5733 k

C600.001

R56 10 k

R55330

R54 100

Q522SC4403 3

R5847 C61

0.001

C700.001

D103MA2S077

D102MA2S077

D54MA304

R59100 k

R60100 k

C660.001

C719 P

C726 P

C641 P

C651 P

D53MA304

L54LS-518

C6315 P

C675 P

C680.001

Q404UN9115

R4094.7 k

L55LS-518

UR3

VR3

D402MA132WA

C4150.001

C4140.001

C1060.1

AM

SD

NO

ISE

DE

TO

C1550.001

R1534.7 k

C151220

R15110

1

789

10

IC151 TA7368F

AF

ON

R152150

3

2

1

4

Q4XP1501 AB

R510 k

C4090.001

C112.2

C120.001

R903 22

R904 22

D902MA133

Q52SA1588 GR

C9140.001

Q9012SB1132 R

C9100.001

C9130.001

D904SB07-03C

C9010.001

C9160.001

C620.001

R30910

R31310 k

R31610 k

VTUNE

+3C

R30220 k

R304 20 k

R3115.6 k

R30368 k

R30547 k

PSET

VCC

1234 5

6 7 8

IC301TC4W53FU

C3020.001

R306470 k

C3000.001C301

0.001

R31247 k

Q306UN9213

R31510 k

321

5Q307XP1114

4

C3030.001

R31447 k

Q309UN9114

R3016.8 k

R300TBPS1R104K475H5Q

D301MA2S111

D302 MA2S111Q310UN9210

Q305UN9210

321

5 6

Q308 XP1213

R31010 k

CHG

+

R90610 k

R905100 k

C9120.001

C9000.001

R30847 k

C9150.001

1234

65

78

Q902HAT1024R

D903MA2S728

C9110.001

C9020.001

C1610.001

C1520.047

C15447 P

Q1512SB1201 S

C15647

R1591 k

R1615.6 k

321

5 4

Q152XP1501 AB R158

10 k

C1533.3

R162100 k

C1574.7

C160100

R1605.6 k

R15710

R15610

R15510

800

PDA/UL

UR3VR3

HVCOTXC

PLCK

123456789

101112131415161718192021222324252627282930

J2 0

8-62

10-0

30-8

00

DICKDIUD

REMOTE

+3C

VCC

DETO

SDGND

H/LTXSEL

NOISE

C9230.001

C9210.001

C9220.001

C9200.001

C9190.001

C9180.001

C9170.001

AF

V

SP

E C1580.001

C1590.001

C1620.001

AF

O

VC

C

HV

MO

D

H/LU

MO

D

VM

OD

TXSEL

BT

VC

C

300AFMODEXTMICSPEINTSPAFONPLST

AM

LVCO

SHIFT

GND

2345 6

23 1

+

2

+

++

+

5

+

PDA/ULGND2NDLO

VCC

INTSPAFO

VTUNELVCO

+

C : COMMONVT : VHF TXUT : UHF TXVR : VHF RXUR : UHF RXVTH : VHF TX HI-POWERVTL : VHF TX LOW-POWERUTH : UHF TX HI-POWERUTL : UHF TX LOW-POWERSQLO : SQL OPENSQLC : SQL CLOSE

VT: 0UT: 0VR: 0.5UR: 0.5

VT: 0UT: 0VR: 2.3UR: 2.3

VT: 0UT: 0VR: 3.1UR: 3.1

UT: 0UR: 2.3 UT: 0

UR: 2.4

UT: 0UR: 0.78

UT: 0UR: 0.75

VT: 0UT: 0VR: 0.7UR: 0.7

VTH: 9.6VTL: 9.8UTH: 9.6UTL: 9.8VR: 13.2UR: 13.2

VT: 0VR: 0.9

VT: 0VR: 1.5

VT: 0VR: 3.1

VT: 0VR: 2.3

VT: 0UT: 0VR: 3.1UR: 3.1

VT: 0UT: 0VR: 0.7UR: 0.7

VT: 0UT: 0VR: 0.7UR: 0.7

VT: 0UT: 0VR: 3.6UR: 3.6

C: 13.2

SQRO: 5.7SQLO: 0

VTH: 10.5VTL: 10.8UTH: 10.6UTL: 10.9VR: 13.1UR: 13.1

VTH: 12.1VTL: 12.4UTH: 0UTL: 0VR: 12.5UR: 0

VTH: 0VTL: 13.0UTH: 0UTL: 12.9VR: 0UR: 0

UTH: 12.4UTL: 12.9UR: 13.2

VTH: 12.2VTL: 12.6VR: 13.2

11 - 3

Page 36: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

6-9-16, Kamihigashi, Hirano-ku, Osaka 547-0002, JapanPhone : 06 793 5302Fax : 06 793 0013

<Corporate Headquarters>2380 116th Avenue N.E., Bellevue, WA 98004, U.S.A.Phone : (425) 454-8155 Fax : (425) 454-1509URL : http://www.icomamerica.com

<Customer Service>Phone : (425) 454-7619

Communication EquipmentHimmelgeister Str. 100, D-40225 Düsseldorf, GermanyPhone : 0211 346047 Fax : 0211 333639URL : http://www.icomeurope.com

A.C.N. 006 092 575290-294 Albert Street, Brunswick, Victoria, 3056, AustraliaPhone : 03 9387 0666 Fax : 03 9387 0022

Unit 9, Sea St., Herne Bay, Kent, CT6 8LD, U.K.Phone : 01227 741741 Fax : 01227 741742URL : http://www.icomuk.co.uk

Zac de la Plaine, Rue Brindejonc des MoulinaisBP 5804, 31505 Toulouse Cedex, FrancePhone : 561 36 03 03 Fax : 561 36 03 00URL : http://www.icom-france.com

“Edificio Can Castanyer” Crta. Gracia a Manresa km. 14,75008190 Sant Cugat Del Valles Barcelona, SPAINPhone : (93) 589 46 82 Fax : (93) 589 04 46E-mail : [email protected]

6F No. 68, Sec. 1 Cheng-Teh Road, Taipei, Taiwan R.O.C.Phone : (02) 2559 1899 Fax : (02) 2559 1874

A Division of Icom America Inc.3071 #5 Road, Unit 9, Richmond, B.C., V6X 2T4, CanadaPhone : (604) 273-7400 Fax : (604) 273-1900

Page 37: SERVICE MANUAL - Il Sito di Andrea - IW2NTF Service.pdfINTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service information for the IC-T7HDUAL

6-9-16, Kamihigashi, Hirano-ku, Osaka, 547-0002, Japan

A-5551I-SPrinted in Japan

© 1998 by Icom Inc.