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Panasonic TX-28LD4DP, Service Manual

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Description

Cct Ref

Parts Number

Description

Cct Ref

Parts Number

ELECT

C2113 ECA1HM3R3GB

50V

3.3µF

ELECT

C2114

ECJ2VF1H104Z

350V

100nF

S.M. CAP

C2115 ECUV1H221JCX

50V

220pF

S.M. CAP

C2116 ECUV1H221JCX

50V

220pF

S.M. CAP

C2117 ECUV1H221JCX

50V

220pF

S.M. CAP

C2118 ECUV1H221JCX

50V

220pF

S.M. CAP

C2119 ECUV1H221JCX

50V

220pF

S.M. CAP

C2120 ECUV1H221JCX

50V

220pF

ELECT

C2121 ECA1CM100GB

16V

10µF

ELECT

C2122

ECJ2VF1H104Z

350V

100nF

S.M. CAP

C2123 ECUV1H221JCX

50V

220pF

S.M. CAP

C2124 ECUV1H070DTX

50V

70pF

S.M. CAP

C2125 ECUV1H470JCX

50V

47pF

S.M. CAP

C2126 ECUV1H070DTX

50V

70pF

S.M. CAP

C2127 ECUV1H010CCX

50V

1pF

S.M. CAP

C2128 ECUV1H010CCX

50V

1pF

ELECT

C2129

ECA1CM102B

16V

1pF

ELECT

C2130 ECA1CM331B

16V

330µF

S.M. CAP

C2131 ECUV1H103ZFX

50V

10nF

S.M. CAP

C2132 ECUV1H103ZFX

50V

10nF

S.M. CAP

C2134 ECUV1H103ZFX

50V

10nF

ELECT

C2135 ECA1HM101GB

50V

100µF

ELECT

C2136

ECJ2VF1H104Z

350V

100nF

ELECT

C2137 ECA1CM100GB

16V

10µF

S.M. CAP

C2138 ECUV1H471KBX

50V

470pF

S.M. CAP

C2139 ECUV1H221JCX

50V

220pF

ELECT

C2140 ECA1HM101GB

50V

100µF

S.M. CAP

C2141 ECUV1H152JCX

50V

1.5pF

S.M. CAP

C2301 ECUV1H222JCX

50V

2.2nF

ELECT

C2302 ECA1CM470GB

16V

47µF

S.M. CAP

C2303 ECUV1H222JCX

50V

2.2nF

ELECT

C2304 ECA1CM470GB

16V

47µF

S.M. CAP

C2401 ECUV1H103KBX

50V

10nF

S.M. CAP

C2402 ECUV1H103KBX

50V

10nF

ELECT

C2403 ECA1HM010GB

50V

1µF

ELECT

C2405 ECA1HM010GB

50V

1µF

ELECT

C2406 ECA1HM101GB

50V

100µF

ELECT

C2407 ECA1CM471GB

16V

470µF

ELECT

C2408 ECA1HM010GB

50V

1µF

ELECT

C2409 ECA1CM100GB

16V

10µF

S.M. CAP

C2410

ECUV1H152KBX

50V

10µF

S.M. CAP

C2411

ECUV1H221JX

50V

10µF

S.M. CAP

C2412 ECUV1H471KBX

50V

470pF

S.M. CAP

C2413 ECUV1H102KBX

50V

1nF

S.M. CAP

C2414 ECUV1H102KBX

50V

1nF

S.M. CAP

C2415 ECUV1H102KBX

50V

1nF

S.M. CAP

C2416 ECUV1H102KBX

50V

1nF

S.M. CAP

C2417 ECUV1H102KBX

50V

1nF

ELECT

C2418 ECA1CM220GB

16V

22µF

ELECT

C2419 ECA1CM220GB

16V

22µF

S.M. CAP

C2420

ECUV1H152KBX

50V

22µF

S.M. CAP

C2421 ECUV1H471KBX

50V

470pF

ELECT

C2422 ECA1CM100GB

16V

10µF

ELECT

C2423

ECJ2VB1H104K

350V

100nF

ELECT

C2424 ECA1HM3R3GB

50V

3.3µF

S.M. CAP

C2427

ECUV1H152KBX

50V

3.3µF

S.M. CAP

C2428 ECUV1H471KBX

50V

470pF

ELECT

C2429 ECA1CM100GB

16V

10µF

S.M. CAP

C2430 ECUV1H010CCX

50V

1pF

S.M. CAP

C2431 ECUV1H010CCX

50V

1pF

S.M. CAP

C2432 ECUV1H101JCX

50V

100pF

ELECT

C2434 ECA1HM010GB

50V

1µF

ELECT

C2435 ECA1HM010GB

50V

1µF

S.M. CAP

C2436 ECUV1H101JCX

50V

100pF

S.M. CAP

C2437 ECUV1H101JCX

50V

100pF

ELECT

C2438 ECA1HM010GB

50V

1µF

ELECT

C2439 ECA1HM010GB

50V

1µF

S.M. CAP

C2440 ECUV1H101JCX

50V

100pF

S.M. CAP

C2441 ECUV1H103KBX

50V

10nF

S.M. CAP

C2445 ECUV1H103KBX

50V

10nF

ELECT

C2451 ECA1CM100GB

16V

10µF

ELECT

C2452

ECJ2VF1H104Z

350V

100nF

ELECT

C2453 ECA1HM010GB

50V

1µF

S.M. CAP

C2454 ECUV1H222KBX

50V

2.2nF

ELECT

C2455 ECA1HM010GB

50V

1µF

S.M. CAP

C2456 ECUV1H222KBX

50V

2.2nF

ELECT

C2457 ECA1HM010GB

50V

1µF

S.M. CAP

C2458 ECUV1H222KBX

50V

2.2nF

ELECT

C2459 ECA1HM010GB

50V

1µF

S.M. CAP

C2460 ECUV1H222KBX

50V

2.2nF

ELECT

C2461 ECA1HM010GB

50V

1µF

S.M. CAP

C2462 ECUV1H222KBX

50V

2.2nF

S.M. CAP

C2467 ECUV1H103KBX

50V

10nF

ELECT

C2468 ECA1HM010GB

50V

1µF

ELECT

C2469 ECA1HM010GB

50V

1µF

ELECT

C2470 ECA1CM100GB

16V

10µF

ELECT

C2471

ECJ2VB1H104K

350V

100nF

S.M. CAP

C2472 ECUV1H102JCX

50V

1nF

S.M. CAP

C2473 ECUV1H332KBX

50V

3.3nF

ELECT

C2474 ECA1CM470GB

16V

47µF

ELECT

C2475 ECA1HM010GB

50V

1µF

ELECT

C2476 ECA1HM010GB

50V

1µF

ELECT

C2477 ECA1HM010GB

50V

1µF

ELECT

C2478 ECA1HM010GB

50V

1µF

S.M. CAP

C2479 ECUV1H101JCX

50V

100pF

S.M. CAP

C2480 ECUV1H101JCX

50V

100pF

ELECT

C2481 ECA1HM101GB

50V

100µF

ELECT

C2482 ECA1HM101GB

50V

100µF

ELECT

C2483 ECA1CM470GB

16V

47µF

S.M. CAP

C2484 ECUV1H103KBX

50V

10nF

ELECT

C2707 ECOS2GA101BB

400V

100µF

CERAMIC

C2708 ECKC3D471JB

2KV

470pF

CERAMIC

C2709 ECKC2H103J

50V

10nF

FILM

C2710

ECQM1H333J

50V

10nF

FILM

C2711

ECQM1H683J

50V

10nF

ELECT

C2712 ECA1CM221GB

16V

220µF

ELECT

C2713 ECA1CM221GB

16V

220µF

CERAMIC

C2714 ECKCWS471J

400V

470pF

CERAMIC

C2715 ECKC2H471J

500V

470pF

ELECT

C2717

ECA1VHG331B

35V

330pF

ELECT

C2718

ECA1HHG471E

50V

470µF

FILM

C2719 ECQM1H104J

50V

100nF

ELECT

C2720 ECA1HM010GB

50V

1µF

S.M. CAP

C2721 ECUV1H101JCX

50V

100pF

S.M. CAP

C2722 ECUV1H103KBX

50V

10nF

ELECT

C2723 ECA1HM101GB

50V

100µF

ELECT

C2724

ECJ2VB1H104K

350V

100nF

ELECT

C2725 ECA1VM221B

35V

220µF

S.M. CAP

C2726 ECUV1H103ZFX

50V

10nF

ELECT

C2727 ECA1VM101GB

35V

100µF

ELECT

C2728

ECJ2VB1H104K

350V

100nF

S.M. CAP

C2730 ECUV1H562KBX

50V

5.6nF

FILM

C2732 ECQM1H104J

50V

100nF

ELECT

C2733 ECA1HM010GB

50V

1µF

S.M. CAP

C2734 ECUV1H101JCX

50V

100pF

ELECT

C2735 ECA1HM330B

50V

33µF

S.M. CAP

C2736 ECUV1H103ZFX

50V

10nF

ELECT

C2737 ECA1VM102GB

35V

1nF

S.M. CAP

C2738 ECUV1H222KBX

50V

2.2nF

ELECT

C2739 ECA1VM102GB

35V

1nF

S.M. CAP

C2740 ECUV1H103ZFX

50V

10nF

FILM

C2742 ECQM1H474J

50V

470nF

24

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Summary of Contents for TX-28LD4DP

Page 1: ...rms 1k Selectable output 21 pin AV3 IN Audio RCAx2 500mV rms 10k Video RCAx1 1V p p 75 Dolby Surround Out 5 x Dolby Surround Out RCA Rear External Speaker connections 2 x Rear 1 x Centre 1 x External...

Page 2: ...metallic cabinet part on the receiver such as screw heads aerials connectors control shafts etc When the exposed metallic part has a return path to the chassis the reading should be between 4M ohm and...

Page 3: ...SERVICE HINTS How to remove the rear cover 1 Remove the 12 screws as shown in Fig 2 LOCATION OF CONTROLS 3 SCREWS Fig 2 E BOARD Y BOARD FOCUS SCREEN H BOARD Fig 3 C BOARD K BOARD N BOARD...

Page 4: ...rotate the chassis horizontally through 90 anti clockwise 4 Move the EHT lead around to the left side of the CRT neck 5 Elevate the front of the chassis 6 Clip the chassis frame onto the bead clamper...

Page 5: ...h the TV on 2 Go into Service Mode as explained above The screen will show 3 Press the BLUE button on the remote control The screen will show 4 Press the STR button on the TV The screen will show 5 Al...

Page 6: ...at the front of the set at the same time pressing the STATUS button on the remote control and the screen will show If the CCU ports have been checked and found to be incorrect or not located then wil...

Page 7: ...75mV 64 S 64 S 3V H Out IC601 Pin 50 Vert Out IC601 Pin 31 20mS 0 7V 13 S 3 7V SCL IC1201 Pin 3 R Out E8 Pin 5 64 S 4 6V HFLB IC601 Pin 13 64 S 6 2V R Out IC601 Pin 37 64 S 275mV G Out IC601 Pin 38 27...

Page 8: ...l Linearity V Lin 006 Optimum setting Vertical Symmetry V Sym 002 Optimum setting DVCO DVCO 005 Receive a PAL Colour Bar Pattern For DVCO alignment press Blue button wait until the colours are changin...

Page 9: ...OUT 39 Q305 Q303 Q301 E8 4 3 5 Q353 Q352 Q351 CRT 3 2 1 7 8 9 Y2 4 3 5 IC351 TUNER Q104 5HG OXH UHHQ 9LGHR Q 9 9LGHR 2XW G OUT 38 R OUT 37 G IN 46 R IN 45 Q306 Q304 Q302 Q354 7 7 VM COILS Q905 Q907 Q9...

Page 10: ...DACM_L 25 SC3_IN_R 38 SC1_IN_R 42 SC1_IN_L 41 SC2_OUT_R 27 SC2_OUT_L 28 SC2_IN_R 40 SC2_IN_L 38 Q252 Q251 2 L L 11 HEADPHONE 2 L 3 R 21 DACA_R 22 DACA_L E12 3 4 5 6 7 I2S_DA_IN_2 18 I2S_DA_IN_1 12 I2...

Page 11: ...Audio Left Audio Right Headphone Left Headphone Right Surround Centre Woofer Surround L Centre Surround R JK2402 Woofer Surround L Centre Out Left Front Surround R Right Front Q2427 Q2423 Q2419 Q2418...

Page 12: ...853 74 IC1071 Q1052 81 AV2 8 10 AV1 8 10 12 Q856 75 Q851 Q1106 Q1105 Q1107 Q1104 51 72 73 AV LINK SLOW 2 SLOW 1 SCL 1 SDA 1 59 58 Q3006 Q3007 55 VPROT KEYSCAN ON OFF R C L E D PROT 1 SLOW 2 OUT IN SLO...

Page 13: ...ESSOR AUDIO PROCESSOR VIDEO PROCESSOR EPROM EAROM RESET REG REG REG IC3401 7 VIDEO SWITCHING IC701 6 EW CORRECTION POWER SUPPLY IC451 6 3 1 V OUTPUT AUDIO OUTPUT D801 E BOARD Y BOARD E3 2 Y3 2 N1 2 E1...

Page 14: ...PARTS LOCATION 14 NOTE The numbers on the exploded view below refer to the mechanical section of the Replacement Parts List 17 5 9 12 4 13 11 23 14 10 2 16 24 19 25 22 21 6 7 8 1 18 20 15 3...

Page 15: ...66296706 CRT SOCKET S351 0330550049 INSTRUCTION BOOKS ENGLISH TQB8E2470 1 I C s AUDIO OUTPUT IC251 LA4282 R G B AMPLIFIER IC351 TDA6103Q N3 VERTICAL OUTPUT IC451 LA7845N VIDEO PROCESSOR IC601 VDP3108B...

Page 16: ...4 MA723TA5 DIODE D2401 MA165TA5 DIODE D2402 MA165TA5 DIODE D2403 MTZJT 7712C DIODE D2404 MTZJT 7712C DIODE D2405 MTZJT 7712C DIODE D2406 MTZJT 7712C DIODE D2409 MA165TA5 DIODE D2705 EG01CV0 DIODE D270...

Page 17: ...0K COIL L107 TLTACT6R8K COIL L114 ELJFC2R2KF COIL L115 ELJFC2R2KF COIL L301 TLTACT4R7K COIL L302 TLTACT4R7K COIL L451 EXCELSA35T COIL L501 EXCELSA35V COIL L552 ELH5L4105 COIL L553 ELC08D682E COIL L554...

Page 18: ...JSE17 ERJ8GEY0R00 125W 5 0 S M CARB JA56 ERJ8GEY0R00 125W 5 0 S M CARB JA31 ERJ8GEY0R00 125W 5 0 S M CARB JA30 ERJ8GEY0R00 125W 5 0 S M CARB JA8 ERJ8GEY0R00 125W 5 0 S M CARB JA59 ERJ8GEY0R00 125W 5 0...

Page 19: ...3 0 1W 5 15K S M CARB R659 ERJ6GEY0R00 0 1W 5 0 S M CARB R660 ERJ6GEY0R00 0 1W 5 0 FUSIBLE R701 ERQ12AJ101 0 5W 5 100 FUSIBLE R702 ERQ12HJ8R2 0 5W 5 8R2 METAL R703 ERG2FJ821 2W 5 820 S M CARB R704 ERJ...

Page 20: ...22 0 1W 5 2K2 S M CARB R1163 ERJ6GEYJ222 0 1W 5 2K2 S M CARB R1164 ERJ6GEYJ332 0 1W 5 3K3 S M CARB R1165 ERJ6GEYJ512 0 1W 5 5K1 S M CARB R1166 ERJ6GEYJ912 0 1W 5 9K1 S M CARB R1167 ERJ6GEYJ100 0 1W 5...

Page 21: ...EYJ102 0 1W 5 1K S M CARB R2523 ERJ6GEYJ681 0 1W 5 680 S M CARB R2524 ERJ6GEYJ681 0 1W 5 680 S M CARB R2525 ERJ6GEYJ104 0 1W 5 100K S M CARB R2526 ERJ6GEYJ104 0 1W 5 100K S M CARB R2527 ERJ6GEYJ332 0...

Page 22: ...UV1H103KBX 50V 10nF S M CAP C124 ECUV1H220JCX 50V 22pF S M CAP C125 ECUV1H100DCX 50V 10pF S M CAP C133 ECUV1H104KBX 50V 10pF S M CAP C134 ECUV1H104KBX 50V 10pF S M CAP C135 ECUV1H104KBW 50V 10pF FILM...

Page 23: ...J 500V 470pF ELECT C856 ECA1AHG222B 10V 470pF CERAMIC C857 ECKC2H471J 500V 470pF ELECT C858 ECEA1HGE102 50V 470pF ELECT C859 ECJ2VF1H104Z 350V 100nF ELECT C860 ECA1HM101GB 50V 100 F ELECT C862 ECJ2VF1...

Page 24: ...A1HM010GB 50V 1 F ELECT C2435 ECA1HM010GB 50V 1 F S M CAP C2436 ECUV1H101JCX 50V 100pF S M CAP C2437 ECUV1H101JCX 50V 100pF ELECT C2438 ECA1HM010GB 50V 1 F ELECT C2439 ECA1HM010GB 50V 1 F S M CAP C244...

Page 25: ...X 50V 560pF S M CAP C3104 ECUV1H561JCX 50V 560pF S M CAP C3105 ECUV1H561JCX 50V 560pF S M CAP C3106 ECUV1H561JCX 50V 560pF ELECT C3107 ECA1HM470GB 50V 47 F ELECT C3108 ECA1HM470GB 50V 47 F S M CAP C31...

Page 26: ...ing and are subject to change without notice REMARKS a Do not touch the hot part or the hot and cold parts at the same time as you are liable to a shock hazard b Do not short circuit the hot and cold...

Page 27: ......

Page 28: ......

Page 29: ......

Page 30: ......

Page 31: ......

Page 32: ......

Page 33: ...Q856 F9 D865 I9 IC1104 C9 Q855 J5 D864 I10 IC1103 F8 Q854 B4 D863 G9 IC1102 D10 Q853 B4 D862 N10 IC1101 D8 Q852 B5 D861 J9 IC1051 A10 Q850 F5 D860 I10 IC852 I10 Q701 J5 D859 H5 IC851 G5 Q552 N3 D858 E...

Page 34: ...54 A7 Q353 G6 Q352 F6 Q351 F6 DIODES D906 F1 D905 G4 D904 D3 D902 G4 D901 G3 D364 C9 D363 C8 D362 B9 D361 B7 D360 D8 D359 G6 D358 E7 D357 F7 D356 G7 D355 F7 D354 G7 TEST POINTS TPY6 B8 TPY5 D5 TPY4 E5...

Page 35: ...D2 Q2424 C1 Q2423 C1 Q2422 G6 Q2421 G6 Q2420 G5 Q2419 G5 Q2418 G5 Q2417 F4 Q2416 D2 Q2410 D2 Q2409 B4 Q2407 C4 Q2406 C4 Q2405 D2 Q2404 F1 Q2403 D2 Q2402 E1 Q2401 IC S C5 IC2404 A4 IC2403 E5 IC2402 G2...

Page 36: ...2701 F9 DIODES D2720 E6 D2719 H10 D2718 G10 D2717 F3 D2716 F2 D2715 F6 D2714 F5 D2713 F8 D2712 F8 D2711 E7 D2710 C8 D2709 C2 D2708 C3 D2707 D6 D2706 C3 D2705 B5 IC S IC2704 F3 IC2703 F6 IC2702 G8 IC27...

Page 37: ...f Service Aids which have been made available LUCI interface kit Linked Utility Computer Interface Part number TZS6EZ002 This contains interface and cables for connecting TV service connector and a PC...

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