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17-1

17-2

CX34L3/51L3/51L4

TROUBLE SHOOTING TABLE

(Continued)

NEITHER VERTICAL NOR

HORIZONTAL SYNCHRONIZATION

CIRCUIT TO BE CHECKED:

Sync. Separator Circuit.

NO VERTICAL SCAN

Vertical linearity and size

abnormal.

Check pins(16), (17) and

(34) of IC801.

DEFECTIVE VERTICAL AMP.

AND VERTICAL LINEARITY

Readjust vertical size.

(Bus Data)

Check IC501.

Check C505 and C509.

Check IC501 bias.

Check R501, R521, R503,

R512, R533 and C533.

TROUBLE SHOOTING TABLE

(Continued)

NO SPECIFIC COLOUR

Is some colour produced in

B/W broadcast reception ?

Is the white balance properly

adjusted ?

Readjust the white balance.

The picture colour is yellow.

The picture colour is magenta.

The picture colour is cyan.

Check (Q870, Q885) - 21"

(Q871, Q883) - 14" and its

adjacent circuits.

Check (Q871, Q883) - 21"

(Q870, Q885) - 14" and its

adjacent circuits.

Check (Q872, Q887) - 21" /

14" and its adjacent circuits.

Check IC801 and bias

control circuit.

NO SPECIFIC COLOUR

“PAL”

(NO COLOUR SYNCHRONIZATION)

Check IC801, R801, R802,

R803, D804, D805, D806

and Q801.

Check X1001(12MHz).

Содержание CX34L3

Страница 1: ...ROUBLE SHOOTING TABLE 16 SOLID STATE DEVICE BASE DIAGRAM 18 WAVEFORMS 19 CHASSIS LAYOUT 21 BLOCK DIAGRAM 24 DESCRIPTION OF SCHEMATIC DIAGRAM 29 SCHEMATIC DIAGRAM Ë MAIN UNIT 30 Ë CRT UNIT 36 Page Ë HEADPHONE UNIT 37 Ë BURST UNIT 38 PRINTED WIRING BOARD ASSEMBLIES 40 REPLACEMENT PARTS LIST Ë ELECTRICAL PARTS MAIN UNIT 47 CRT UNIT 51 HEADPHONE UNIT 51 BURST UNIT 51 Ë SUPPLIED ACCESSORIES 52 Ë PACKIN...

Страница 2: ...continued safety 3 Do not lift picture tube by the neck 4 Handle the picture tube only when wearing shatterproof goggles and after discharging the high voltage completely X RAY This receiver is designed so that any X Ray radiation is kept to an absolute minimum Since certain malfunctions or servicing may produce potentially hazardous radiation with prolonged exposure at close range the following p...

Страница 3: ...embly together and ready to be POWER ON for the FIRST TIME make sure to make a short circuit 137 and 138 switch to the service mode position first and then turn on the main power switch See 2 1 above Precaution If haven t done this initiation it may possibly generate excessive Beam current 3 For reference please check with memory map GA1 Series type RH iX3368CE Attachment Ë SERVICE MODE 1 In the S...

Страница 4: ...A NUMBER OF EXT AV SOURCE AV FM WINDOW SELECTION FMWS SOUND MUTE BIT 0 SM0 SOUND MUTE BIT 1 SM1 THAI LANGUAGE THA ARABIC LANGUAGE ARA MALAY LANGUAGE MAL CHINESE LANGUAGE CHI FRENCH LANGUAGE FRE RUSSIAN LANGUAGE RUS FORCED V SYNC SLICING LEVEL FSL SYNC OF OSD HP2 TUNER CRT CPT B BILINGUAL BIL IF AGC SPEED BIT 0 AGC0 IF AGC SPEED BIT 1 AGC1 FOA Time Constant RF FOA FE FOB Time Constant RF FOB FE FOA...

Страница 5: ...stment 2 2 CDL ADJUST 7 FOR 21 and 5 FOR 14 3 3 123K DEGREE COLOUR TEMP MINUS 7 4 4 AUSTRALIA MODEL ONLY SET S DK 1 _ 0 S I 1 _ 0 P SECAM 1 _ 0 F N443 1 _ 0 F SECAM 1 _ 0 5 5 S COR ADJUST 20 FOR 21 AND 17 FOR 14 6 6 ADJUST COLOUR OFFSET AFTER ADJUST SUB COLOUR COLOUR OFFSET PAL COL OP 8 14 COLOUR OFFSET SECAM COL OS 8 14 COLOUR OFFSET NTSC358 COL 03 4 10 COLOUR OFFSET NTSC443 COL 04 4 10 7 7 SUB C...

Страница 6: ...1 41 10 32 477 25 M 32 294 25 B G 33 693 25 M 33 463 25 B G 34 41 10 34 174 95 B G 35 112 25 B G 35 175 55 B G 36 168 25 B G 36 41 10 37 41 10 37 590 25 B G 38 294 25 B G 38 41 10 39 463 25 B G 39 41 10 40 41 10 40 41 10 41 647 25 B G 41 41 10 42 663 25 B G 42 41 10 43 679 25 B G 43 41 10 44 174 95 B G 44 174 95 B G 45 175 55 B G 45 175 55 B G 46 41 10 46 41 10 99 41 10 99 41 10 INITIAL SETTING 1 ...

Страница 7: ...rm as shown in Fig 2 Note Be sure to keep the tuner cover in position during this adjustment E 9 CH P C 10k 100k 1n60 75ohm IF OUT 1 5 0 8dB 1000p Oscilloscope Fig 2 Fig 3 PURITY ADJUSTMENT NO Adjustment part Adjusting procedure and conditions Waveform and others 1 PURITY ADJ 1 Receive the GREEN ONLY signal Adjust the beam current to 700 µA 21 and 500 µA 14 2 Degauss the CRT enough with the degaus...

Страница 8: ... set before continue the next adjustment CRT CUT OFF BACKGROUND AND SUB CONTRAST ADJUSTMENT NO Adjustment part Adjusting procedure and conditions Waveform and others 1 2 SUB BRIGHTNESS ADJUSTMENT I 2 C BUS CONTROL Line 3 is one step data brighter than line 2 CRT CUTOFF ADJUSTMENT I 2 C BUS CONTROL 3 WHITE BALANCE SERVICE MODE ADJ I 2 C BUS CONTROL 1 Receive the WHITE pattern with BURST signal 2 Pr...

Страница 9: ... ADJUSTMENT NO Adjustment part Adjusting procedure and conditions Waveform and others 1 SUB TINT I 2 C BUS CONTROL 1 Receive the NTSC3 58 Colour Bar signal thru AV in 2 Connect the oscilloscope to TP47B P882 pin 5 BLUE OUT Range 100mV div AC Use Probe 10 1 Sweep time 10 µsec div 3 Call the SUB TINT mode in service mode Adjust the SUB TINT bus data to obtain the waveform shown as Fig 1 1 4 Clear th...

Страница 10: ...l setting value for every mode CONTRAST MAX COLOUR CENTER BRIGHTNESS CENTER TINT CENTER SHARPNESS CENTER Note If nothing is display mean contrast colour bright tint or sharpness are all in nor mal setting 8 White Temp 1 Receive Monoscope Pattern signal 2 Set FUNCTION to select WHITE TEMP 3 Press Volume Up Down key to check WHITE TEMP Option STANDARD NORMAL SETTING WARM for more REDDISH direction c...

Страница 11: ...ON FF 00 FF 2A 2B 2C 2D OSD REFERENCE 0F 00 0F 2E CUTOFF LEVEL OFFSET R 20 00 3F 2F CUTOFF LEVEL OFFSET G 20 00 3F 30 CATHODE DRIVE LEVEL 00 00 0F 31 Y DELAY TV PAL 0C 00 0F 32 Y DELAY TV SECAM 0F 00 0F 33 Y DELAY TV N358 0C 00 0F 34 Y DELAY TV N443 0C 00 0F 35 Y DELAY TV BW 0C 00 0F 36 Y DELAY AV PAL 0C 00 0F 37 Y DELAY AV SECAM 0F 00 0F 38 Y DELAY AV N358 0C 00 0F 39 Y DELAY AV N443 0C 00 0F 3A ...

Страница 12: ...E CHECK DATA CHECK TYPE REMARK ADDRESS DATA HEX D7 D6 D5 D4 D3 D2 D1 D0 40 SHARPNESS OFFSET SECAM 04 00 0F 41 SHARPNESS OFFSET N358 0C 00 0F 42 SHARPNESS OFFSET N443 08 00 0F 43 44 FCO ACL OSO EHT EVG FFI AVL BKS 00 FF 45 SECAM N443 N358 PB SECAM BG I DK M 00 FF 46 SM1 SM0 FMWS AV BTSC HTL VMC VMI 00 FF 47 HP2 FSL RUS FRA CHN MLY ARB THA 00 FF 48 AGC1 AGC0 BIL CPT FOB AV FOA AV FOB FE FOA FE NDF M...

Страница 13: ...ER NO MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL SETTING DATA DEFAULT RANGE WRITE CPU CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK ADDRESS DATA HEX D7 D6 D5 D4 D3 D2 D1 D0 C0 TUNING FREQUANCY LOWER PART POS 25 C1 S SYS AFT auto C SYS C2 TUNING FREQUANCY HIGHER PART POS 26 C3 TUNING FREQUANCY LOWER PART C4 S SYS AFT auto C SYS C5 TUNING FREQUANCY HIGHER PART POS 27 C6 TUNING FREQUANCY...

Страница 14: ...C SYS 149 TUNING FREQUANCY HIGHER PART POS 71 14A TUNING FREQUANCY LOWER PART 14B S SYS AFT auto C SYS 14C TUNING FREQUANCY HIGHER PART POS 72 14D TUNING FREQUANCY LOWER PART 14E S SYS AFT auto C SYS 14F TUNING FREQUANCY HIGHER PART POS 73 150 TUNING FREQUANCY LOWER PART 151 S SYS AFT auto C SYS 152 TUNING FREQUANCY HIGHER PART POS 74 153 TUNING FREQUANCY LOWER PART 154 S SYS AFT auto C SYS 155 TU...

Страница 15: ...l will be the last ch which you received before power off same as normal operation CONDITION When using hotel mode user can control contrast brightness sharpness and tint function But after power off it will return to the initial setting You can t use Preset mode Fine tuning Skip mode System selection The others function is allowed to be used 1 Ch 1 is your selected channel for hotel mode Input 1 ...

Страница 16: ...received Check the tuner supply voltage LB must be approx 5V BT must be approx 32V and CH preset data check Check the tuner AGC at TP201 Does noise or signal appear at pin 38 of IC801 Check IC801 and its related circuit Check pin 1 of SF201 Tuner and related circuit Check pin 37 of IC801 and related circuit Check Q253 Q254 and related circuit Check IC801 Check C356 and peripheral circuit Check pin...

Страница 17: ...R512 R533 and C533 TROUBLE SHOOTING TABLE Continued NO SPECIFIC COLOUR Is some colour produced in B W broadcast reception Is the white balance properly adjusted Readjust the white balance The picture colour is yellow The picture colour is magenta The picture colour is cyan Check Q870 Q885 21 Q871 Q883 14 and its adjacent circuits Check Q871 Q883 21 Q870 Q885 14 and its adjacent circuits Check Q872...

Страница 18: ...X0110BM TX0124BM 2SC3198 2SC3207 DX0476CE BASE COLLECTOR EMITTER BASE COLLECTOR EMITTER B C E KA7808A 1 2 3 CATHODE ANODE RED STRG5653 AN7523 PX0013PE 2SD2586 C4S584F 1 9 ZR BR COLLECTOR COLLECTOR BASE EMITTER BASE EMITTER JC COLLECTOR BASE EMITTER 1 3 5 2 4 9 TDA9302 21 AN5522 14 IX3368CE 2SC2735 1 32 5 VDD NC OUT Y IN Y VSS 4 1 3 2 ...

Страница 19: ... 3 10 Vp p H 4 3 10 Vp p H 5 78 4 Vp p H 2 3 00 Vp p H 6 70 Vp p H 8 3 2 Vp p V 9 2 32 Vp p H 10 122 Vp p H 7 79 2 Vp p H 11 8 8 Vp p H 13 110 Vp p H 14 1100Vp p H 15 480 Vp p 12 50 Vp p V 16 28 Vp p V 17 2 08 Vp p V WAVEFORMS CX34L3 ...

Страница 20: ...11 Vp p H 4 3 11 Vp p H 5 84 8 Vp p H 2 3 17 Vp p H 6 80 Vp p H 8 3 04 Vp p V 9 2 28 Vp p H 10 126 Vp p H 7 80 Vp p H 11 8 8 Vp p H 13 146 Vp p H 14 1 1kVp p H 15 440 Vp p 12 47 2 Vp p V 16 28 Vp p V 17 2 64 Vp p V WAVEFORMS CX51L3 51L4 ...

Страница 21: ...21 CX34L3 51L3 51L4 MODEL CX34L3 CHASSIS LAYOUT ...

Страница 22: ...22 CX34L3 51L3 51L4 MODEL CX51L3 CHASSIS LAYOUT ...

Страница 23: ...23 CX34L3 51L3 51L4 MODEL CX51L4 CHASSIS LAYOUT ...

Страница 24: ...CX34L3 51L3 51L4 CX34L3 51L3 51L4 24 25 BLOCK DIAGRAM MAIN BLOCK ...

Страница 25: ...26 CX34L3 51L3 51L4 BLOCK DIAGRAM CRT UNIT BLOCK DIAGRAM CX34L3 CRT UNIT BLOCK DIAGRAM CX51L3 51L4 ...

Страница 26: ...27 CX34L3 51L3 51L4 BLOCK DIAGRAM HEADPHONE UNIT BLOCK DIAGRAM BURST UNIT BLOCK DIAGRAM ...

Страница 27: ...28 CX34L3 51L3 51L4 M E M O ...

Страница 28: ...NNECTED WITH AC MAINS VOLTAGE WHEN SERVICING THE AREA CONNECT AN ISOLATING TRANS FORMER BETWEEN TV RECEIVER AND AC LINE TO ELIMINATE HAZARD OF ELECTRIC SHOCK NOTES 1 The unit of resistance ohm is omitted K 1000 ohms M Meg ohm 2 All resistors are 1 16 watt unless otherwise noted 3 All capacitors are µF unless therwise noted P µµF VOLTAGE MEASUREMENT CONDITIONS 1 Voltage in parenthesis measured with...

Страница 29: ...CX34L3 51L3 51L4 CX34L3 51L3 51L4 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B C D E F G H I J SCHEMATIC DIAGRAM MAIN UNIT CX34L3 ...

Страница 30: ...CX34L3 51L3 51L4 CX34L3 51L3 51L4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B C D E F G H I J 32 33 MAIN UNIT CX51L3 ...

Страница 31: ...CX34L3 51L3 51L4 CX34L3 51L3 51L4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B C D E F G H I J 34 35 MAIN UNIT CX51L4 ...

Страница 32: ...36 CX34L3 51L3 51L4 CRT UNIT CX34L3 CRT UNIT CX51L3 51L4 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 ...

Страница 33: ...37 CX34L3 51L3 51L4 HEADPHONE UNIT CX34L3 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 HEADPHONE UNIT CX51L3 51L4 ...

Страница 34: ...38 CX34L3 51L3 51L4 BURST UNIT CX51L3 51L4 BURST UNIT CX34L3 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 ...

Страница 35: ...39 CX34L3 51L3 51L4 M E M O ...

Страница 36: ...CX34L3 51L3 51L4 CX34L3 51L3 51L4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B C D E F G H I J 40 41 PWB A MAIN UNIT WIRING SIDE PRINTED WIRING BOARD ASSEMBLIES ...

Страница 37: ...CX34L3 51L3 51L4 CX34L3 51L3 51L4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B C D E F G H I J 42 43 PWB A MAIN UNIT Chip Parts Side FDC1 B1 A2 Z2 Z1 A1 B2 FDC2 ...

Страница 38: ...1L3 51L4 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 PWB B CRT UNIT WIRING SIDE PWB B CRT UNIT Chip Parts Side C880 R894 R892 C872 C871 C873 R881 R893 R880 R879 R888 R898 R896 R895 C883 R878 C884 R877 R876 R899 C885 ...

Страница 39: ...45 CX34L3 51L3 51L4 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 PWB C HEADPHONE UNIT PWB D BURST UNIT ...

Страница 40: ...46 CX34L3 51L3 51L4 M E M O ...

Страница 41: ...1 R KA7808AP AE IC701 VHiSTRG5653 1 R STRG5653 AQ IC801 RH iX3368CEN5 R IX3368CE BE IC1005 VHiM24C04W 1 R M24C04W AG TRANSISTORS VS2SD2586 1E R 2SD2586 AM CX51L3 CX51L4 Q253 VS2SD601A 1 R 2SD601A AC Q254 VS2SD601A 1 R 2SD601A AC Q302 VS2SD601A 1 R 2SD601A AC Q321 VS2SD601A 1 R 2SD601A AC Q352 VS2SD601A 1 R 2SD601A AC Q501 VS2SC3198 G 1 R 2SC3198 AA Q601 VS2SC3207 1 R 2SC3207 Horiz Driver AC Q602 V...

Страница 42: ...Y1HB103K R 0 01 50V Ceramic AA C508 VCFYSA1JB224J R 0 22 63V C509 VCEA0A1CW477M R 470 16V Electrolytic AC C510 VCKYPA2HB102K R 1000p 500V Ceramic AA C514 VCFYSA1JB473J R 0 04763V AC CX51L3 CX51L4 C514 VCFYSA1JB563J R 0 05663V CX34L3 C529 VCKYCY1CB823K R 0 08216V Ceramic AH C531 VCKYCY1HB102K R 1000p 50V Ceramic AA C532 VCKYCY1HB102K R 1000p 50V Ceramic AA C533 VCQYTA1HM104J R 0 1 50V Mylar AA C601...

Страница 43: ... VRN MD2AL223J R 22k 0 1W Metal Film AA R261 VRN MD2AL223J R 22k 0 1W Metal Film AA R262 VRN MD2AL560J R 56 0 1W Metal Film AB R263 VRN MD2AL560J R 56 0 1W Metal Film AB R301 VRN MD2AL101J R 100 0 1W Metal Film AA R302 VRN MD2AL101J R 100 0 1W Metal Film AA R303 VRN MD2AL561J R 560 0 1W Metal Film AA R304 VRN MD2AL100J R 10 0 1W Metal Film AA R305 VRN MD2AL274J R 270k 0 1W Metal Film AA R310 VRN M...

Страница 44: ...81J R 180 0 1W Metal Film AA R1011 VRN MD2AL101J R 100 0 1W Metal Film AA R1012 VRD RA2BE271J R 270 1 8W Carbon AA R1013 VRD RA2BE101J R 100 1 8W Carbon AB R1014 VRN MD2AL101J R 100 0 1W Metal Film AA R1015 VRN MD2AL332J R 3 3k 0 1W Metal Film AA R1016 VRN MD2AL101J R 100 0 1W Metal Film AA R1017 VRN MD2AL332J R 3 3k 0 1W Metal Film AA R1019 VRN MD2AL392J R 3 9k 0 1W Metal Film AA R1020 VRN MD2AL1...

Страница 45: ...L102J R 1k 0 1W Metal Film AA R893 VRN MD2AL102J R 1k 0 1W Metal Film AA R894 VRN MD2AL102J R 1k 0 1W Metal Film AA R895 VRN MD2AL471J R 470 0 1W Metal Film AA CX51L3 CX51L4 R896 VRN MD2AL471J R 470 0 1W Metal Film AA CX51L3 CX51L4 R898 VRN MD2AL471J R 470 0 1W Metal Film AA CX34L3 R899 VRN MD2AL471J R 470 0 1W Metal Film AA MISCELLANEOUS PARTS å SC881 QSOCV0017PEZZ R Socket 9Pin CX34L3 å SC883 QS...

Страница 46: ...acking Foam CX34L3 AL SPAKX2721PEZZ R Packing Foam CX51L3 AN SPAKX2719PEZZ R Packing Foam CX51L4 AP SSAKA0031PEZZ R Polyethylene Bag AB SSAKH0009PEZZ R Polyethylene Bag AD CX34L3 TLABK0002PEZZ R Serial No Label AB TLABM1846PEZZ R Model Label CX51L4 TLABM1847PEZZ R Model Label CX51L3 AC TLABM1900PEZZ R Model Label CX34L3 TLABN0001PEZZ R No Label AD TLABV0386PEZZ R Label CX34L3 TLABV0380PEZZ R Label...

Страница 47: ...o Part No Description Code Ref No Part No Description Code 53 CX34L3 51L3 51L4 CABINET PARTS LOCATION CX34L3 CX51L3 CX51L4 1 5 1 6 1 4 1 3 1 2 2 1 1 1 1 2 1 5 1 4 1 3 1 6 2 1 1 1 1 4 1 5 1 3 1 6 2 1 1 2 1 1 ...

Страница 48: ...acking Case Fix the packing case with 22 staples Number Card Wrapping Paper Polyethylene Bag Mark Not Replacement Item Buffer Material Serial Number Card SPAKP0056PEZZ CX34L3 SPAKP0119PEZZ CX51L3 CX51L4 SPAKC6794PEZZ CX34L3 SPAKC6784PEZZ CX51L3 SPAKC6783PEZZ CX51L4 SPAKX2713PEZZ CX34L3 SPAKX2721PEZZ CX51L3 SPAKX2719PEZZ CX34L4 ...

Страница 49: ...55 CX34L3 51L3 51L4 M E M O ...

Страница 50: ... Tochigi 329 2193 Japan COPYRIGHT 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher D SEM P SYI TQ1227 S Feb 2002 Printed in JAPAN NA DS NR ...

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