SAT-40100 CI-Manual.pdf

ARION STB

Service Manual

VER 4.3

AF-8100CI

CONTENTS

* Basic Test (System working failure)

- Power of SMPS and MAIN B/D ---------------------------------------

- VCXO 27MHZ STI5518 CLOCK --------------------------------------

- STI5518 REST ----------- ---------------------------------------

- FLASH TEST ---------------------------------------------------

- SDRAM TEST ---------------------------------------------------

- I2C BUS TEST --------------------------------------------------

* MPEG and A/V TEST

- VIDEO OUT -------------------------------------------------

- AK4702 R,G,B VIDEO INPUT --------------------------------------

- AK4702 R,G,B VIDEO OUTPUT ------------------------------------

- AUDIO OUTPUT (AUDIO SIGRAL NOT GENERATING)-------------------

- DAC PCM1725 AUDIO OUTPUT(AUDIO SIGNAL NOT GENERATING)-------

- AK4702A AUDIO IN OUTPUT(AUDIO SIGNAL NOT GENERATING)--------

* TUNER TEST

- Channel Part Servicing FLOW(Each Pin of Tuner Servicing check point) -------

- Tuner working voltage and tuning voltage (Locking Failure)-----------------

- 13V/18V LNB Working Voltage Failure (Locking Failure.)------------------

- 22KHz TONE Frequency (Locking Failure)------------------------------

- TS Stream (Failure of Screen display)------------------------------

* RF-Modulator TEST

- RF A/V Output(RF Video & Audio Failure.)------------------------------

* SCART Control Test

- ScartVideo16:9 4:3 Slow Blanking (Video 16:9 4:3 Failure.)-----------------

- Scart Video Ouput Fast Blanking (Video OUT CVBS & RGB Select Failure)-----

*0/12 Output TEST

- 0/12 TEST (0/12V OUTPUT Failure.) ---------------------------------

* Digital Audio S/PDIF

- S/PDIF Output Test (S/PDIF Output Failure.)-----------------------------

* Front

- Front 7-Segment Test (7-Segment Display failure)---------------------

- Remote controller Test (Remote control failure)--------------------------

* COMMON INTERFACE

- TS STREAM (Failure of Screen Display after Stream Locking)----------------

- PCMCIA (PCMCIA CAM Insert시 SET Down. )----------------------------

- PCMCIA (CAM BAD MODULE & CAM BAD MODULE OSD Flickering)----------

- PCMCIA (PCMCIA CAM Recognition Failure) --------------------------

- PCMCIA (Mosaic symptoms of Scrambled Channel & Failure of Video Display)---

*Others

* Circuit Diagram -------------------------------------------------

*PART LIST ----------------------------------------------------

SECTION Basic Test

Item : Power of SMPS and MAIN B/D

Symptom : System Working Failure

Check each terminal of CN901 Power supply connector on Circuit Diagram page 1

3.3V in 7Pin is main power. In case of 3.3V disorder, system doesn’t work at all

Item : SMPS Connector (An error range of each power voltage is within ±5%)

- Check Point(CN901): Circuit Diagram Page 1

1Pin : 30V RF &Tuner Tuning Voltage.

2Pin : 23V LNB Horizontal (13/18V) Regulator Input Voltage.

3Pin : 23V LNB Horizontal (13/18V) Regulator Input Voltage.

4Pin : 12V AK4702 & 0/12V Voltage. (Audio)

5Pin : 7.5V Tuner, Front, RS-232, TTL IC, CI CHIP

7Pin : 3.3V Tuner & STi5518 Main Voltage. CI CHIP

GND : 6,9Pins

Symptoms & Trouble shooting

Check each terminal of CN901 using a Voltmeter. In case of insufficiency of proper voltage

for each terminal, replace SMPS

Item : Regulator & Diode (An error range of each power voltage is within ±5%)

- Check Point(U901) : Circuit Diagram Page 1/Pin3 7.5V Pin1 5V

A/V, RS-232, Front & Tuning do not work in case

of U901 Regulator is dead

- Check Point(U902) : Circuit Diagram Page 1/Pin3 7.5V Pin1 5V

CI Chip(CIMAX) do not work in case of

U901 Regulator is dead

- Check Point(D301) : Circuit Diagram Page 6/Pin1 3.3V Pin2 2.5V

Main STi5518 doesn’t work in case of D301 Diode is dead

Symptoms & Trouble shooting:

Check each terminal of Regulator & Diode In/Out using a Voltmeter. In case of insufficiency

of proper voltage for each terminal, replace a conforming component

SECTION Basic Test

Item : VCXO 27MHz STI 5518 CLOCK

Symptom : System Working Failure

VCXO CLOCK 27MHz is System CLOCK of STi5518

When 3.3V power is applied, VCXO 27MHz makes an output of 27MHz CLOCK

8Pin wave of U302 120Pin wave of U301

Check Point : Circuit Diagram page 4

- Gauge the Pin #8 of VCXO => 27MHz

- Gauge the Pin #120 of U301

- Gauge 3.3V of the Pin #8 of U302

Symtoms & Trouble shooting

- In case of failure of an output of not-reset wave in U303 Pin #1, Front displays

“8888.”

- VCXO can be damaged by a severe physical shock or static electricity

- Check the neighboring circuit of U302 & Soldering status, then in case of not being found

any disorder of them, replace U302 (Neighboring components : B301,R316,BD301)

SECTION Basic Test

Item : STI 5518 RESET

Symptom : System Not Working

When the power is applied, NOT-RESET is output to U303 #1

1. Not Reset wave 2.Power on wave

Check Point:

- Reset Chip : Circuit Diagram page 4 / Gauge U303 #1 using Oscilloscope

- STi5518 Reset : Circuit Diagram page 4 / Gauge U301 #124

- Flash Reset : Circuit Diagram page 5 / Gauge U381 #12

- Tuner Reset : Circuit Diagram page 2 / Gauge TU101 #26

Symptoms & Trouble Shooting

- In case of no output of Not-Reset wave in U303 Pin #1, Front displays “8888”

- Check the neighboring circuit of U303 & Soldering status, then in case of not being found

any disorder of them, replace U303

(Neighboring components : R320, CB324)

Item : FLASH TEST

Symptom : System working failure

All the information is stored in Flash memory that is necessary for the operation of receiver

When you turn on the power, FLASH CE/OE show the wave as below;

After completing Booting, it remains in high status without movement.

Check Point:

- FLASH CE : Circuit Diagram Page4 / U301 Pin132 , RA310, R385

- FLASH OE : Circuit Diagram Page4 / U301 Pin117 , R311

- INTEL or NOT INTEL Flash OPTION : Circuit Diagram Page5 “05-MEMORY/u-COM”

INTEL FLASH :

R383(RC1608 0R) R326(RC1608 0R)

U381(AMD FLASH)

R326(RC1608 0R)

U381(INTEL FLASH)

AMDFLASH

INTELFLASH

R381(RC1608 0R)

AMD FLASH :

U381(INTEL FLASH)

R381(RC1608 0R)

U381(AMD FLASH)

HY29LV160TT90, MX29LV160ATTC, M29W160DT

DELETE

R383(RC1608 0R)

TE28F160C3T, M28W160CT

INSERT

Symptoms & Trouble Shooting :

1. Check soldering status of the above Check Point components

2. In case of no output of Check Point(CE/OE) in Power on reset status, it means that U301 is

dead

Flash CE wave

CVBS Check Point:

Circuit Diagram Page5/U381

Pin 26

Flash OE wave

CVBS Check Point:


Pin 28

SECTION System Test

Item : SDRAM TEST

Symptom : System working failure

When STi5518 U301 works normally, SD RAM CLOCK waves between 27Mhz and 121 Mhz

Check Point:

- SD RAM CLOCK : Circuit Diagram Page4/U301 Pin82 ,95, R321

Circuit Diagram Page5/U371 Pin38

- SD RAM CS : Circuit Diagram Page1/U301 Pin74

Circuit Diagram Page5/U371 Pin19, R119


1. Check soldering status of the above Check Point components

SDRAM CLOCK wave Check Point:


Pin 82,95 (check 121Mhz)

SDRAM CS wave Check Point:


Pin 74

SECTION System Test

Item : I2C BUS TEST

Symptom: System working failure & Rebooting.

I2C BUS is a signal to control each device. In case of disorder in a line or a Ground short, it

makes the system down or rebooted

Check Point:

- I2C1 CLOCK : Circuit Diagram Page1/U301 Pin195 (STI5518)

Circuit Diagram Page6/U721 Pin44(AK4702)

Circuit Diagram Page1/TU101 Pin8 (TUNER)

Circuit Diagram Page2/U72101 Pin30 (CI Chip)

- I2C1 DATA : Circuit Diagram Page1/U301 Pin194(STI5518)

Circuit Diagram Page2/U721 Pin43 (AK4702)

Circuit Diagram Page1/TU101 Pin9 (TUNER)

Circuit Diagram Page2/U201 Pin31 (CI Chip)

- I2C2 CLOCK : Circuit Diagram Page7/RF801 Pin3 (RF-MODULATOR)

Circuit Diagram Page5/U391 Pin14 (Copy Protect MCU)

- I2C2 DATA : Circuit Diagram Page7/RF801 Pin3 (RF-MODULATOR)

Circuit Diagram Page5/U391 Pin13 (Copy Protect MCU)

I2C CLOCK wave Check Point:


Pin 195(I2C1), Pin 21(I2C2)

I2C DATA wave Check Point:


Pin 194(I2C1), Pin 20(I2C2)

Symptoms & Trouble shooting

1. Check the above Check Point components or soldering status of Serial resistor 100 Ohm

(Serial resistor : R393,R394,R805,R806,R101,R102,R202,R203,R721,R722)

2. In case of low voltage in a Line, check the 3.3V Pull up

(R322,R323,R301,R302 2.7K Ohm)

3. In case everything is in an order but LINE voltage is under 2V, it means that Main Chip(U301

STI5518) is dead or I2C Device trouble.

SECTION MPEG and A/V

Test

Item : Video Output

Symptom : Video signal generating failure.

In order to test it, make the Color Bar displayed by pressing numeric buttons “42125” on the

remote controller in turn in Standby status

The video signal is output from Main Chip STi5518(U301) to TV SCART, VCR SCART and

RCA through AK4702(U721)


1. Check the neighboring circuit of U721 or soldering status

2. When AK4702 input is OK but there’s not output of it, check U721 power and its neighboring

circuit. And check Resister, Capacitor value in case output is OK but wave is abnormal

3. The above wave of AK4702 Output is same as the one of VCR CVBS and TV CVBS

AK4702 input wave

CVBS Check Point:


(Check pk-pk volt. 1V ±0.1V)

AK4702 Output wave

CVBS Check Point:




Test

Item : Video Output

Symptom: Video signal generating failure.



The last-end wave of CVBS Output is same as below

(The below picture shows 75 Ohm lode status to TV when you gauge TV SCART, VCR

SCART and RCA wave)


1. AK4702 Output is normal but in case the last-end wave is distorted or the range of it is

below 1V ±0.1, check output platform Resistor, Capacitor value

2. VCR SCART & TV SCART CVBS output platform wave is same as the above

CVBS Check Point:

Circuit Diagram Page6/ R785



Test

Item: AK4702 R, G, B Video input.

Symptom: R, G, B Video signal generating failure



R, G, B Video signal is output from Main Chip STi5518(U301) to TV SCART through

AK4702(U721)

AK4702 U721 input wave


When STi5518 R,G,B Output is normal but AK4702 Input wave is in disorder, check C, R value

in RGB Filter

Red wave Check Point:

Circuit Diagram Page6/

U721 Pin11 (or CB704)

Green wave Check Point:


U721 Pin10 (or CB705)

Blue wave Check Point:


U721 Pin9 (or CB706)


Test

Item : AK4702 R, G, B Video Output.

Symptom : R, G, B Video signal generating failure



R, G, B Video signal is output from Main Chip STi5518(U301) to TV SCART through

AK4702(U721)

The last-end wave


1. When AK4702 R, G, B Output is normal but the last-end output wave is in disorder, check

R753,R755,R756 value

2. When AK4702 input is normal but output is abnormal : U721 material defect

Red wave Check Point:

Circuit Diagram Page6/ Check

R756, 700mV ±0.1V

Green wave Check Point:


R755, 700mV ±0.1V

Blue wave Check Point:


R753, 700mV ±0.1V


Test

Item: Audio Output

Symptom: Audio signal generating failure.

Check Point in case Receiver works normally but there’s no Audio output


1. Check the Array resistor RA312 and soldering status of U301

2. If it doesn’t not output the wave as the above, U301 may be defective

PCM DATA Check Point:

Circuit Diagram Page4/U301, Pin52

PCM DATA Check Point:

DAC_PCMCLK Check Point:


(Check frequency 12Mhz )

DAC_LRCLK Check Point:


(Check frequency 48Khz)

DAC_SCLK Check Point:


(Check frequency 1.5Mhz)


Test

Item : AK4702 Audio Output

Symptom : Audio signal generating failure

Pin #41, PCM_DATA, Pin #40, DAC_SCLK, Pin #42, DAC_LRCLK, Pin #39 and PCM_CLK of

U1 are normal


remote controller in turn in Standby status. When Color Bar displays on TV, Audio (1Khz)

wave is output

Check Point

- Audio Left Out : Circuit Diagram Page6/U721, Pin32 (or R751)

- Audio Right Out : Circuit Diagram Page6/U721, Pin31 (or R752)

Symptoms & Trouble Shooting

1. Check the soldering status of U721,RA312,R751,R752 Soldering

2. In case the frequency as the above is not output, U721 material is defective

3. Check of Output terminal Resistors.

Audio Left 1Khz out

Audio Right 1Khz out

SECTION Tuner Test

Item : Channel Part Servicing FLOW (TUNER TEST)

Symptom: Check Point for each Pin Servicing of Tuner

The function of each Pin of Tuner (Circuit Diagram page 7)

1) Use Pin #1. LNB-OUTPUT terminal as LNB Loop Through

- Voltage : 13/18V ±1V (MAX 25V)

- Current : MAX 600mA

- Frequency Range : 950MHz ~ 2150MHz

2) Use Pin #2. LNB-INPUT terminal as Satellite Antenna Input

- Voltage : 13/18V ±1V (MAX 25V)

- Current : MAX 600mA

- Frequency Range : 950MHz ~ 2150MHz

3) Pin #3. RF Booster AMP Voltage

- Voltage : : +3.3V (+3.135V ~ +3.465V Max 30mA)

4) Pin #4. Front-end section Voltage

- Voltage : +3.3V (+3.135V ~ +3.465V )

5) Pin #11. LINK IC Voltage

- Voltage : +3.3V (+3.135V ~ +3.465V )

6) Pin #12. LINK IC Voltage

- Voltage : +2.5V (+2.375V ~ +2.625V )

7) 12Pin 22Khz Frequency Output

- Frequency : 22Khz +-1Khz

- Wave Voltage : 600mV(400mV ~ 900mV)

8) Pin #9. Tuner Control I2C CLOCK Output

9) Pin #8. Tuner Control I2C DATA In/Output

10) Pin #14~#21. Mpeg Stream Data Out

11) Pin #22. (BCLK)Transport stream byte clock out

12) Pin #23. (D/P) Output”1”for the output of data,”0” for the output of parity.

13) Pin #24. (STR OUT) Output”1”for the output of synchronization byte signal.

14) Pin #25. (ERROR) Output”1” for the incorrect error occurred.

15) Pin #26. (RES) Reset. Please input “0” for Reset “1” for the correct operation

SECTION Tuner Test

Item: Tuner working voltage and tuning voltage.

Symptom: Locking Failure

+3.3V and +2.5V are applied for Tuner power. Only if all of the power voltage are input

properly, Tuner works normally.

Picture 1.

Picture 2.


1. Check soldering status of the neighboring circuit such as resistors and condensers

(B101,B102,B103 DI01, etc.)

Check +3.3V of U901 7805 input voltage. In case of disorder of the Input Voltage, check

SMPS.

2. Check +2.5V of D101 1N4004 Input Voltage. In case of disorder of the Input Voltage,

check SMPS.

Check Point: Circuit Diagram Page

1/TU101 3,4,11Pin+3.3V

Check Point: Circuit Diagram

Page 1/TU101 13Pin +2.5V

SECTION Tuner Test

Item: 13V/18V LNB Working Voltage Failure.


13V/18V voltage is for the operation of a LNB of a satellite antenna. In case the voltage is not

applied properly to a LNB, a screen is broken and it fails to lock channels

LNB Power Control Signal

18V LNBP_EN (High 3.3V),LNBP_VOLT (High 3.3V)

13V LNBP_EN (High 3.3V),LNBP_VOLT (Low 0V)

Check Point

- LNB_LOOP: Circuit Diagram Page 1 / R152

- LNB_ON/OFF : Circuit Diagram Page 1 / R154, TR Input terminal

- LNB_13/18V: Circuit Diagram Page 1 / R161, TR Input terminal


1. Check soldering status of the neighboring circuit(Q153, Q155) such as resistors and

condensers

2. Check the input voltage of Q153 (+23V). In case of its disorder, check SMPS

3. Check U151 LM317 In/Out

4. Check Q152 TIP42 In/Out (LNB POWER ON/OFF TR)

- Q152 Base = 0.6~0.7V => Q152 working

LNB POWER (+13V)

(+12.5V~+14V)

LNB POWER (+18V)

(+17.5V~+19V)

SECTION Tuner Test

Item: 22KHz TONE Frequency.


22Khz Tone is a signal to control DiSEqC

In case of a disorder of 22Khz Tone, it fails to lock and do DiSEqC Selection

Check Point

- 22Khz (Input): Circuit Diagram Page 1/ R163 TR Input terminal

- 22Khz (Output): Circuit Diagram Page 1/ B151 TU101Pin 2


1. Check soldering status of the neighboring circuit (Q156, Q157 etc.) such as resistors and

condensers

2. In case of no output of 22Khz clock in 22Khz Input terminal, check Tuner(TU101)

3. If the voltage in Q157 Base terminal is 0.6~0.7V, (R156,R157,R158,R155,C153 LNB control

value.)

22 Khz Output

22 Khz Input

SECTION Tuner Test

Item : TS Stream

Symptom: No Screen Display

TS Signal is input to STi5518 through Common Interface Chip when Tuner locks channels.


1. Check Tuner(TU101) Power and Reset, Soldering status

2. Check I2C Line of Tuner(TU101)

TS Valid


Page 1/TU101, Pin23 or R104

TS STR



TS CLK



SECTION Tuner Test

Item : TS Stream

Symptom: No Screen Display

TS Signal is input to STi5518 through Common Interface Chip when Tuner locks channels.

Check Point

- Check RA101, RA102. The above DATA must show the wave from D0 to D7.


1. Check Tuner(TU101) Power and Reset, Soldering status

2. Check I2C Line of Tuner(TU101)

3. Check the RA101, RA102 Soldering status

TS DATA Data0~Data7


Page 1/TU101, Pin14~21

SECTION RF-Modulator

TEST

Item : RF A/V Output

Symptom: RF Video & Audio Failure

RF Video & Audio signal is input to RF-Modulator getting DATA from STI6412 U721


1. Check RF(RF801) Power and Soldering status of I2C Line

2. In case Input wave is not formed, check AK4702(U721) works properly.

RF Input Video wave


Page 6/RF801, Pin6

(Check Video Level pk-pk 1V )

RF Input Audio wave


Page 6/RF801, Pin2

(Audio Level 1.8V ~ 2V 1Khz)

SECTION SCART Control

Test

Item : ScartVideo16:9 4:3 Slow Blanking.

Symptom: Screen Video 16:9 4:3 Failure

In order to test it, select 4:3/16:9 screen mode in Output Setting

AK4702(U721) controls Slow Blanking


1. Check AK4702, U301 Power and I2C Line Soldering status.

Screen Video 4:3 wave


Page 6/U721, Pin23

(No Lode Level 9.5V ~ 12V)

Screen Video 16:9 wave


Page 6/ U721, Pin23

(No Lode Level 5V ~ 8V)

SECTION SCART Control

Test

Item : Scart Video Ouput Fast Blanking

Symptom: Video OUT CVBS & RGB Select Failure.

In order to test, select CVBS/RGB for Video output in Output Setting

AK4702(U721) Controls Fast Blanking


1. Check AK4702, U301 Power and I2C Line Soldering status.

Screen Video CVBS wave


6/U721, Pin48

(No Lode Level 0V ~ 0.4V)

Screen Video RGB wave


6/U721, Pin48

(No Lode Level 1V ~ 4V)

SECTION 0/12 Output TEST

Item : 0/12 TEST

Symptom: 0/12V OUTPUT Failure.

In order to test, select 0Volt/12Volt in Antenna Setting

Check Point

- When Circuit Diagram Page 4/ U301 Pin #20 is in High(3.3V) status, 12V is out.

- When Circuit Diagram Page 6/Q773 Pin2(Base) is in High(0.6V) status and 12V is input to

Q772 Pin1, PB12 output 12V

- Circuit Diagram Page 4/U301 Pin20 High(3.3V) 12Volt Out

- Circuit Diagram Page 4/U301 Pin20 Low(0V) 0Volt Out


1. Check the circuit near Q772, Q773 and soldering status

2. When 12V is not input to Q772, check SMPS.

0/12Volt wave


6/R780

(No Lode Level 11V~13V 50mA)

SECTION Digital Audio

S/PDIF

Item : S/PDIF Output Test

Symptom: S/PDIF Output Failure.

Digital Audio (Dolby AC-3) signal flows out from STI5518(U301) and output as optical signal

through RCA JACK(Coaxial)

Even if there’s no AC-3 signal, Audio is always output to PCM DATA

Check Point

- Circuit Diagram Page 6/R786

- Check CB772, R774(Must Insert)


1. Check SPDIF Sub board Soldering status

2. Input is ok in Check Point but no optical output

- Replace Q771, Insert R786, Remove R780

SPDIF wave


Page 4/U3 Pin57

SECTION Front

Item : Front 7-Segment Test

Symptom : 7-Segment Display failure

The signal flows out from STI5518 then output to Front 7-Segment

Check Point

- Circuit Diagram Page 4/U301 Pin43, 44, 45, 46

- Circuit Diagram Page 4/B351,B352,B353,B354

- Circuit Diagram Front Page 1/FR20, FR21, FR22, FR23


1. Check U301, Resistors, Bead Soldering status

2. Check U301, in case of no wave output from U301

Digit1 wave Check Point:

Circuit Diagram Page 4/JP3 Pin2







SECTION Front


Symptom : 7-Segment Display failure.

The output wave from Main STV5518 is the one of FQ3, 4, 5, 6(TR)

When only one out of four Digit is in disorder, the Digit can’t be output

Check Point

- Circuit Diagram Front Page 1/SEG1 Pin1, Pin2, Pin6, Pin8

Symptoms & Trouble Shooting:

1. Check TR FQ3,FQ 4,FQ5, FQ6 Soldering status

2. Input to TR Base is ok, but no wave output

- Check and replace TR


Circuit Diagram FrontPage

1/SEG1 Pin1


Circuit Diagram FrontPage

1/SEG1 Pin2, Pin6, Pin8

SECTION Front


Symptom : 7-Segment Display failure.

When 4 Digit is displayed but numbers are in disorder, check the below wave.


1. In case of no wave output in Check Point, check U301 Soldering status

2. When Input is ok but the numbers are broken, check FU1

3. when Input is ok but LED(Standby, Lock Remote) doesn’t work, check FU2

4. When Key Switch doesn’t work, check the wave input when you press switch in Circuit

Diagram Page 1/U301 Pin39

5. When Front 7-Segment doesn’t emit light, check Front Power 5v

Serial Data wave Check Point:

Circuit Diagram FrontPage 1/FU1

Serial clock wave Check Point:


Serial clear wave Check Point:


SECTION Front

Item : Remote controller Test

Symptom: Remote control failure

The signal from RCU is accepted in optical (SEN1) sensor, then goes into Main MCU

STI5518(U301)

Check Point

- Check Circuit Diagram Front Page 1/ SEN1 Pin3 5V


1. When the wave like A isn’t input, check SEN1 Soldering status then it is ok, replace SEN1

2. When Input is ok but no output to TR Collector

- Check LB17,R65,U301 Pin22 Soldering then it is ok, replace Tr(FQ1)

Remote Controller Input wave Check Point:

Circuit Diagram FrontPage 1/FQ1 Pin2

A.(holding on pressing “1”)

Remote Controller Output wave Check Point:

Circuit Diagram Page 4/U301 Pin22

B.( holding on pressing “1”)

SECTION COMMAN NTERFACE

Item : TS STREAM

Symptom: Locking is ok, but no screen display

When Tuner locks TS Signal, it is input to STi5518 Main Chip through Common

Interface Chip and SUB Board

Check Point

- Check Circuit Diagram Page 2/ U201 Pin40~47 DATA Input (cf. Page 21)

- Check Circuit Diagram Page 2/ U201 Pin35 27Mhz Clock Input, PIN34 RESET(LOW)

- Check Circuit Diagram Page 2/ STAR CI Chip(B204 Insert, B202 Remove)

- Check Circuit Diagram Page 2/ CIMAX Chip(B202 Insert, B204 Remove)

- Check the circuit Soldering status near U4 CIMAX Chip

TS Valid

Check Point: Circuit Diagram Input

Point Page 2/U201, Pin48

Output Point Page 2/U4, Pin61

TS STR


Input Point Page 2/U201, Pin49

Output Point Page 2/ U201, Pin62

TS CLK


Input Point Page 2/ U201, Pin50

Output Point Page 2/ U201, Pin63

SECTION COMMAN INTERFACE

Item : PCMCIA

Symptom : PCMCIA CAM Insert시 SET Down.

When you insert PCMCIA CAM, you can see the wave as below.


1. Check U301 and U201 CIMAX Chip(Check Point) Soldering status

2. Check I2C LINE (cf. Page 7 I2C BUS TEST)

CI MAX _OE wave


Page 2/U201, Pin17

CI MAX _CE wave


Page 2/U201, Pin18

CI MAX _Wait wave


Page 2/U201, Pin15

CI MAX _BE wave


Page 2/U201, Pin16


Item : PCMCIA

Symptom : CAM BAD MODULE & CAM BAD MODULE OSD flickering


Check Point

- Check Circuit Diagram Page 2/ U202 Pin2~Pin9 DATA Input

- Check Circuit Diagram Page 2/ U202 Pin11~Pin18 DATA Output

- Check Circuit Diagram Page 2/ U203, U204 Pin2,5,6,9,12,15,16,19 ADD Input

- Check Circuit Diagram Page 2/ U203, U204 Pin3,4,7,8,13,14,17,18 ADD Output.


1. Check PCMCIA Connector& U202, U203, U204 Soldering status.

2. In case of no output wave of U202, U203, U204 Output, replace U202, U203, U204

DATOE wave


Page 2/U202, Pin19

DATDI wave


Page 2/U202, Pin1

ADOE wave


Page 2/U203, U204 Pin1

ADLE wave


Page 2/ U203, U204 Pin11


Item : PCMCIA

Symptom : PCMCIA CAM Recognition Failure



1. Check PCMCIA Connector& U201 Soldering status

2. Check PCMCIA Connector connection

CAM Reset wave

CheckPoint: Circuit Diagram

Page 2/U201,Pin120, 119

CAM Detect wave


Page 2/ U201, Pin6, 7,

CAM Chip Enable wave


Page 2/ U201, Pin81, 82,

CAM OUT Enable wave


Page 2/ U201, Pin88


Item : PCMCIA

Symptom: PCMCIA CAM Recognition Failure




2. Check PCMCIA Connector connection

3. In case of no wave output shown as Check Point on PCMCIA, U201 is dead.

4. Check CI CHIP ( CIMAX or STARCI)

CAM REG wave


Page 2/U201, Pin123

CAM WE wave


Page 2/U201, Pin97

CAM IOR wave


Page 2/U201, Pin89

CAM IOW wave


Page 2/U201, Pin90


Item : PCMCIA

Symptom : Scramble Channel Mosaic and No Video

1. PCMCIA CAM 1

Check Point : Circuit Diagram Page 2/U201

- Check input in Pin110 MICLK PCMCIA CAM

- Check input in Pin92 MISTART PCMCIA CAM

- Check input in Pin105 MIVAL PCMCIA CAM

- Check input in Pin94,96,99,103,107,112,114,116 MIDATA PCMCIA CAM

- Check output in Pin118 MOCLK PCMCIA CAM

- Check output in Pin127 MOSTART PCMCIA CAM

- Check output in Pin125 MOVAL PCMCIA CAM

- Check output in Pin1,3,5,74,76,78,80,84 MODATA PCMCIA CAM

Symptoms & Trouble Shooting:


2. In case of Solder Short in the above Check Point, you can see Mosaic and no Video

1. PCMCIA CAM 2

Check Point : Circuit Diagram Page 2/U201

- Check input in Pin108 MICLK PCMCIA CAM

- Check input in Pin91 MISTART PCMCIA CAM

- Check input in Pin104 MIVAL PCMCIA CAM

- Check input in Pin93,95,98,102,106,111,113,115 MIDATA PCMCIA CAM

- Check output in Pin117 MOCLK PCMCIA CAM

- Check output in Pin126 MOSTART PCMCIA CAM

- Check output in Pin124 MOVAL PCMCIA CAM

- Check output in Pin128,2,4,73,75,77,79,83 MODATA PCMCIA CAM



2. In case of Solder Short in the above Check Point, you can see Mosaic and no Video

Documents

SAT-40100 CI-Manual.pdf