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Panasonic TH-42PX50UA, Service Manual, Page: 19 / 26

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Panasonic TH-42PX50UA Service Manual Download Page 19

5.7. P-Board (5 of 6) Schematic Diagram

R480

91K

R580

47K

R577

47K

C504

1.0

IC402

C0BBAA000038

1

2

5

3

4

R686
1000

R418

47K

R689
1000

C508
0.01

Q551

B1CBGD000001

R685

100K

R425

3300

R615

10K

D434

MA4082M

C631

0.01

Q550

B1CHGD000006

C421
0.01

R692

4700

R583

47K

R503

100K

D403

MA4051N-MKT

C637

0.1[KB]

R640

10K

Q535

2SD1819A

C609

0.01

R519

100K

R578

47K

R497

24K

C402

100p

R542
1000

R677
220K

R514

100K

Q553

2SD1819A

Q544

XN0440100L

R557

470

R501

22K

R523

1000

C583

1000P

C638

0.01

R575

1000

IC411

C0BBAA000038

1

2

5

3

4

R495
560K

Q417

B1CHND000004

X501

4MHz

R450
1000

R697

100K

R518

100

Q557

2SD1819A

R611

10K

R508

1000

R581

47K

Q537

B1CFQD000001

C418

1.0K

C519

1.0

R525

47K

C507

0.01

R502

100K

Q536

B1CFQD000001

C503

0.01

C405

0.01

C505

1000P

PR503

K5H502Z00003

C623

10/50V

R517

10K

R571

10K

IC403

CNC1S171R

2

1

4

3

C482

0.1

Q421

2SD1819A

C506
0.01

C593

0.22

R536

1000

R510
100K

R625
100K

R486

6800

R504
1000

C612

0.01

R687

10K

IC507

C0CBABE00023

1

2

5

3

4

Q418

2SD1819A

R511

100K

Q403

B1CBGD000001

C639

0.01

IC404

CNC1S171R

2

1

4

3

R623

10K

C635
0.01

Q501

2SD1820A

R416

3300

R568
180

R515

1000

R420

470K

Q502

2SD1820A

C510

0.1

R404

100K

R520

100K

R546
1000

R506
1000

Q552

B1CBGD000001

C502

0.01

R538

100K

R694

100K

C422
0.01

C636

1.0

R653
10K

R688

22K

R487

3300

R541

100K

R617

10K

D402

MA4240-M

D565

MA4160-M

IC401

CNC1S171R

2

1

4

3

R509
100K

R496

560K

D505

B0JAME000081

C471

1.0

D559

B0BA7R200003

R618
100K

C501

0.01

C411

0.01

R606
1200

IC501

C2ABDD000066

VDD

1

VSS

2

XIN

3

XOUT

4

CNVSS

5

Reset

6

P21

7

P20

8

D5

9

D4

10

21

P01

22

P00

D1

13

D0

14

P13

15

P12

16

P11

17

P10

18

P03

19

P02

20

D3

11

D2

12

23

P31

24

P30

R651
47K

Q554

B1DHBD000004

R408

100K

R678

22K

R693
4700

R569

180

C610

1.0

R453

1000

IC502

C0EBH0000190

1

2

3

R610

10K

R516

1000

R586

47K

C607

1.0

R512

22K

R616

10K

R540
1000

C410

1.0

Q503

XN0440100L

R602
3300

R532

100

R494

560K

R505

33

Q561

2SD1819A

C608
0.01

R684

22K

R513

100K

C626

0.01

R690

10K

Q559

2SD1819A

C509

100/25V

Q538

B1CFQD000001

D555

B0BA7R200003

R535

1000

P-BOARD TNPA3724AB (5/6)

HO

T

COLD

HOT

COLD

HOT

COLD

(PFC DET)

COMPARATOR

(AC IN)

COMPARATOR

POWER MCU

RESET

+5V REG

COUPLER

PHOTO 

COUPLER

PHOTO 

COUPLER

PHOTO 

P-BOARD

TO

(3/6)

A

2

D

3

7

4

F

B

8

C

1

E

6

9

5

BA

BB

BE

BC

BD

BG

BF

BJ

BH

BI

BK

BL

31

33

32

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

TH-42PX50U, TH-42PX500U
P-Board (5 of 6) Schematic Diagram

TH-42PX50U, TH-42PX500U
P-Board (5 of 6) Schematic Diagram

TH-42PX50U / TH-42PX500U

19

Summary of Contents for TH-42PX50UA

Page 1: ...Block and Schematic Diagrams 13 5 1 Schematic Diagram Notes 13 5 2 P Board Block Diagram 14 5 3 P Board 1 of 6 Schematic Diagram 15 5 4 P Board 2 of 6 Schematic Diagram 16 5 5 P Board 3 of 6 Schematic Diagram 17 5 6 P Board 4 of 6 Schematic Diagram 18 5 7 P Board 5 of 6 Schematic Diagram 19 5 8 P Board 6 of 6 Schematic Diagram 20 6 Replacement Parts List P board 21 6 1 Replacement Parts List Notes...

Page 2: ...PX500UA New Parts No Parts name Description Remarks F603 K5D102BNA007 TIME LAG FUSE HIGH F601 602 K5D103BMA001 TIME LAG FUSE HIGH F401 402 K5D802BNA005 TIME LAG FUSE HIGH RTL ETXMM563MDK TNPA3724AB CIRCUIT BOARD P CHAP 1 3 1 3 Interchangeability for CIRCUIT BOARD P Using the original P board for early or late production set is recomended when boad exchanging Interchangeability Code The circled ite...

Page 3: ...shown in figure 2 TH 42PX50U was discontinued and TH 42PX50U was introduced from NOV 2005 2 2 TH 42PX500UA 1 Model number is indication in rear cover is only TH 42PX500U only in rear cover as shown in figure 2 TH 42PX500U was discontinued and TH 42PX500U was introduced from NOV 2005 3 TH 42PX50U TH 42PX500U ...

Page 4: ...tage of Vscn is 30V 3V 3 1 2 Adjustments Adjust driver section voltages referring the panel data on the panel data label Name Test Point Voltage Volume Remarks Vsus TPVSUS SS Vsus 2V VR351 P Ve TPVE SS Ve 2V VR6145 SS Vset TPVSET SC 240V 7V Fixed Vad TPVAD SC 105V 1V VR6477 SC Vscn TPVSCN SC Vad 130V 4V Fixed Vda TPVDA SS 70V 1V VR352 P PFC C446 395V 0 5V R443 P Vlow C555 73V 0 1V R661 P Vda load ...

Page 5: ...as follows Picture menu Standard Color temperature Middle Picture 25 3 Connect Oscilloscope to TPSC1 T1 and check for 15 10µ Sec 4 Connect Oscilloscope to TPSC1 T2 and adjust R6557 for 184 5µ 10µ Sec Test point Volume Level T1 TPSC1 SC 15 10µ Sec T2 TPSC1 SC R6557 SC 184 5µ 10µ Sec 5 TH 42PX50U TH 42PX500U ...

Page 6: ...1 P Vda TPVDA SS 70V 1V VR352 P PFC C446 P 395V 0 5V R443 P Vlow C555 P 73V 0 1V R661 P Vda load current 0 4A Csus TPVSUS SS 178V 0 5V R671 P Vsus load current 1 7A SC Board Vad TPVAD SC 105V 1V VR6477 SC SS Board Ve TPVE SS Ve 2V VR6145 SS D DG Board White blance Pedestal and Sub brightness for NTSC PAL HD PC and 625i signals See the Panel label Caution Absolutely do not reduce Vsus below Ve not ...

Page 7: ...3 5 Test Point Location 7 TH 42PX50U TH 42PX500U ...

Page 8: ...8 TH 42PX50U TH 42PX500U ...

Page 9: ...4 Conductor Views 4 1 P Board A 1 3 5 2 4 6 C E G I B D F H P BOARD FOIL SIDE TNPA3724AB TH 42PX50U TH 42PX500U P BOARD TNPA3724AB TH 42PX50U TH 42PX500U P BOARD TNPA3724AB TH 42PX50U TH 42PX500U 9 ...

Page 10: ...507 H 5 IC509 C 5 IC512 D 5 IC520 E 4 IC Q401 F 4 Q403 F 4 Q404 B 1 Q406 C 2 Q407 C 1 Q408 C 3 Q409 C 3 Q412 C 3 Q413 C 3 Q414 G 4 Q415 G 4 Q417 F 3 Q418 F 3 Q420 D 1 Q421 F 3 Q422 D 1 Q423 H 4 Q424 G 4 Q430 G 3 Q431 E 3 Q432 G 3 Q433 G 4 Q434 G 4 Q435 H 4 Q436 G 4 Q438 G 4 Q439 E 2 Q440 E 2 Q441 G 4 Q501 H 5 Q502 H 5 Q503 H 5 Q505 D 5 Q506 B 5 Q507 B 5 Q508 E 5 Q509 E 5 Q510 E 5 Q511 F 4 Q512 F 5...

Page 11: ...A 1 3 5 2 4 6 C E G I B D F H P BOARD COMPONENT SIDE TNPA3724AB TH 42PX50U TH 42PX500U P BOARD TNPA3724AB TH 42PX50U TH 42PX500U P BOARD TNPA3724AB TH 42PX50U TH 42PX500U 11 ...

Page 12: ...TH 42PX50U TH 42PX500U 12 ...

Page 13: ...5 Block and Schematic Diagrams 5 1 Schematic Diagram Notes TH 42PX50U TH 42PX500U 13 ...

Page 14: ...436 L405 L404 F401 F402 1 4 NEUTRAL RL402 RL403 R455 R474 R479 R481 R483 R488 Q430 Q432 Q433 Q441 Q417 IC407 Q438 Q431 Q439 Q440 4 2 4 2 IC409 3 1 1 3 3 14 13 10 18 9 6 15 16 SS12 TO T601 REG IC504 2 1 T410 T404 D539 LIVE P9 2 ERROR DET POWER DC POWER ERROR DET COMPARATOR PFC DET 5V REG COLD HOT AC CORD TO PFC DET STB5V DET ALLOFF SW EXT Isen VIN CE SS CLK FB VSS VlOW DET VlOW DET MAIN ON OFF RUSH...

Page 15: ...EUTRAL 1 ZH11 ZH12 L404 G0B123K00004 1 2 4 3 L405 G0B123K00004 1 2 4 3 C473 680P C476 680P Q422 2SD1819A R490 47K R491 47K Q404 B1BCCF000022 R493 12 R410 10 ZH43 ZH42 ZH40 ZH51 D419 RU30ALF014 D420 RU30ALF014 ZH102 ZH103 ZH104 ZH105 ZH106 ZH107 ZH108 ZH109 ZH110 ZH111 ZH5 ZH6 Q406 B1DELQ000003 C446 390uF 450V ZN403 ERZVA7D511T2 ZH15 ZH16 ZH9 ZH10 F401 T8AH 250V F402 T8AH 250V 1mm 1mm 1mm 1mm Z450 ...

Page 16: ...0 1 ZH53 Q520 B1HFCFA00021 6 1 5 3 4 2 D551 MA4130 M ZH57 D549 B0BA7R200003 R563 2 2 P5 K1KA11AA0194 11 GNDs 10 GNDs 9 GNDs 12Vs 8 12Vs 7 12Vs 6 GND 5 15V 4 GND 3 12V 2 12V 1 D544 MTZJT 7722B R713 4700 ZH63 C643 47 R600 390 R585 33K Q510 B1DHBD000004 R599 390 C625 10 D538 MA3051 MTX R476 180 ZH62 R661 5K C606 1 0 R670 1000 R655 0 39 C546 0 033 R680 0 39 R574 330 R659 30K D569 MA4300 M R645 47K R66...

Page 17: ...20 0 1 C424 1000P R907 27K D509 B0HANM000028 R565 330K C516 0 47 R554 3300 IC412 CNC1S171R 2 1 4 3 R530 33K R522 10 IC409 CNC1S171R 2 1 4 3 IC408 CNC1S171R 2 1 4 3 R904 120K R469 10K R474 100K D412 MA111 D406 MA4200 M D411 B0BB17000010 C529 1 0 R909 10M D511 B0HBSM000043 Q415 2SB1218ARL R915 10K R912 10K Q440 2SD1819A D563 MTZJT 776 2B Q436 B1CEJQ000002 D507 MA4150 M C434 1 0 R703 100 R908 3300K R...

Page 18: ... 1 R634 0 68 ZH28 R627 7500 R695 16K C634 1000P C518 1 0 C640 0 1 R621 12K R652 9 1K R543 2200 R527 220K C616 1000P ZH47 R619 0 68 R657 1000 R620 10K ZH39 Q506 B1CHND000004 P10 K1KA06A00452 F_STB_14V 1 F_STB_14V 2 F_STB_14V 3 GND 4 GND 5 GND 6 R564 470K Q564 2SD1819A R920 100K R558 330K C525 820 25V R707 1000 Q519 B1DEHF000002 D508 MA4150 M C533 0 01 R559 47K R549 1000 Q558 B1CHHG000002 C511 330 R...

Page 19: ...D1820A C510 0 1 R404 100K R520 100K R546 1000 R506 1000 Q552 B1CBGD000001 C502 0 01 R538 100K R694 100K C422 0 01 C636 1 0 R653 10K R688 22K R487 3300 R541 100K R617 10K D402 MA4240 M D565 MA4160 M IC401 CNC1S171R 2 1 4 3 R509 100K R496 560K D505 B0JAME000081 C471 1 0 D559 B0BA7R200003 R618 100K C501 0 01 C411 0 01 R606 1200 IC501 C2ABDD000066 VDD 1 VSS 2 XIN 3 XOUT 4 CNVSS 5 Reset 6 P21 7 P20 8 D...

Page 20: ...19 KILL_SOS 20 P30 K1KA05AA0193 5 FAN_CONT 4 5V 3 FAN_SOS 2 GND 1 15V P BOARD TNPA3724AB 6 6 P BOARD 4 6 TO 14 12 10 13 15 11 18 17 16 D25 D BOARD TO CH CG CA CD CE CF CB CC CM CJ CL CK CN CO CI 36 46 48 52 39 38 33 51 47 31 49 50 45 44 37 34 42 40 43 35 32 41 PB30 PB BOARD TO TH 42PX50U TH 42PX500U P Board 6 of 6 Schematic Diagram TH 42PX50U TH 42PX500U P Board 6 of 6 Schematic Diagram TH 42PX50U...

Page 21: ...6 Replacement Parts List P board 6 1 Replacement Parts List Notes 21 TH 42PX50U TH 42PX500U ...

Page 22: ...1UF K 50V 1 C523 ECJ3YB1E105K C 1UF K 25V 1 C525 F2A1E8210012 E 820UF 25V 1 C527 ECJ3YB1E475K C 4 7UF K 25V 1 Ref No Part No Part Name Description Pcs Remarks C528 29 F1J1C1050011 C 1UF Z 50V 2 C530 ECJ2VB1H333K C 0 033UF K 50V 1 C533 ECJ2XB1H103K C 0 01UF K 50V 1 C534 ECJ2XC1H471J C 470PF J 50V 1 C546 47 ECJ2VB1H333K C 0 033UF K 50V 2 C548 ECJ2XB1H104K C 0 1UF K 50V 1 C550 ECJ2XB1H102K C 1000PF K...

Page 23: ...s Remarks L403 EXCELSA35 BEAD CHOKE 1 L404 05 G0B123K00004 CHOKE COIL 2 L501 EXCELSA35 BEAD CHOKE 1 L502 TALL08N102JA INDUCTION COIL 1 L506 EXCELDR25C BEAD CHOKE 1 L509 J0JBC0000032 CHIP INDUCTOR 1 L510 EXCELDR25C BEAD CHOKE 1 P2 K1KA06AA0192 6P CONNECTOR 1 P5 K1KA11AA0194 11P CONNECTOR 1 P9 K1KA03A00537 3P CONNECTOR 1 P10 K1KA06A00452 6P CONNECTOR 1 P11 K1KA07AA0192 7P CONNECTOR 1 P12 K1KA10AA019...

Page 24: ...32 M 3 3KOHM J 1 10W 1 Ref No Part No Part Name Description Pcs Remarks R472 73 ERJ6ENF5603 M 560KOHM 1 10W 2 R474 ERG1SJ104P M 100KOHM J 1W 1 R475 ERJ6EKF6803 M 680KOHM 1 10W 1 R476 77 ERJ14YJ181U M 181 OHM J 1 4W 2 R478 ERJ8GEYJ220 M 22 OHM J 1 8W 1 R479 ERG1SJ104P M 100KOHM J 1W 1 R480 ERJ6ENF9102 M91 0KOHM 1 10W 1 R481 ERJ6GEYJ106 M 10MOHM J 1 10W 1 R482 ERJ8GEYJ220 M 22 OHM J 1 8W 1 R483 ERJ6...

Page 25: ...M 47KOHM J 1 10W 1 R652 ERJ6ENF9101 M 9 1KOHM 1 10W 1 R653 ERJ6GEYJ103 M 10KOHM J 1 10W 1 R654 ERJ8GEYJ101 M 100 OHM J 1 8W 1 R655 ERJ8RQJR39 M0 39 OHM 1 8W 1 R656 ERJ6ENF4702 M 47KOHM 1 10W 1 Ref No Part No Part Name Description Pcs Remarks R657 ERJ6GEYJ102 M 1KOHM J 1 10W 1 R658 ERJ6GEYJ105 M 1MOHM J 1 10W 1 R659 ERJ6ENF3002 M 30KOHM 1 10W 1 R660 ERJ6ENF1202 M 12KOHM 1 10W 1 R661 EVMAASA00B53 CO...

Page 26: ...CONTROL 2KOHMB 1 X501 H2B400400021 CRYSTAL 1 Z1 Z2 K4ZZ01000206 TERMINAL 2 Z420 TMM23417 CLAMPER 1 Z421 22 TMM7464 2 CLAMPER 2 Z423 TMME047 CLAMPER 1 Z424 25 TMME190 CLAMPER 2 Z450 53 EYF52BCY FUSE HOLDER 4 ZN401 0 2 D4EAD6210001 VARISTOR 2 ZN403 ERZVA7D511T2 VARISTOR 1 ZN404 ERZVGAD681T2 VARISTOR 1 MA4082M ZENER DIODE 1 XYN3 J8FJ SCREW ROHS 1 XYN3 J10FJ SCREW 1 26 TH 42PX50U TH 42PX500U ...

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