Panasonic TH-42PX50UA Manuale utente

1 Parts Change Notice 2

1.1. Mechanical Replacement Parts List 2

1.2. Electrical Replacement Parts List 2

1.3. Interchangeability for CIRCUIT BOARD P 2

2 Note 3

2.1. TH-42PX50UA 3

2.2. TH-42PX500UA 3

3 Adjustment Procedure 4

3.1. Driver Set-up 4

3.2. Initialization Pulse Adjust 5

3.3. P.C.B. (Printed Circuit Board) exchange 6

3.4. Adjustment Volume Location 6

3.5. Test Point Location 7

4 Conductor Views 9

rights reserved. Unauthorized copying and

distribution is a violation of law.

TH-42PX50UA

TH-42PX500UA

4.1. P-Board 9

5 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 21

6.2. Replacement Parts List (P-board) 22

7 Schematic Diagram for printing with A4 27

Digital High Definition Plasma Television

Subject : Change P-board

Please file and use this manual together with the service manual for Model No

TH-42PX50U (Main), ORDER NO. ITD0503013CE

TH-42PX500U (Main), ORDER NO. MTNC050632C1

CONTENTS

Page Page

ORDER NO. ITD0510061SE

B19Canada :B07

1 Parts Change Notice

1.1. Mechanical Replacement Parts List

TH-42PX50UA

Ref. No. TH-42PX50U

(Original Parts No.) TH-42PX50UA

(New Parts No.) Parts name & Description Remarks

29 TTUA1149 TTUA1328 REAR COVER Model Name Plate is

different only.

TH-42PX500UA

Ref. No. TH-42PX500U

(Original Parts No.) TH-42PX500UA

(New Parts No.) Parts name & Description Remarks

39 TTUA1172 TTUA1329 REAR COVER Model Name Plate is

different only.

1.2. Electrical Replacement Parts List

Ref. No. TH-42PX50U

TH-42PX500U

(Original Parts No.)

TH-42PX50UA

TH-42PX500UA

(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 item indicates the interchangeability.

Parts Model

OA Original

New TH-42PX50U/500U

TH-42PX50UA/500UA Original or new P-board may be used in early or late production set.

Keep stock the original P-board and use the original for early or late production set. Stock

new parts is not required.

TH-42PX50UA / TH-42PX500UA

2 Note

2.1. TH-42PX50UA

1.Model number is indication in rear cover is only "TH-42PX50U " only in rear cover as 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.

TH-42PX50U / TH-42PX500U

3.1. Driver Set-up

3.1.1. Item / Preparation

1.Input a white signal of the RGB signal generator.

2.Set the picture controls: -

Picture menu: Standard

Color temperature: Middle

Picture: 25

Aspect: Full

Caution

1.First perform Vsus adjustment.

2.Confirmation of Vscn voltage should be performed after

confirmation of Vad adjustment.

When Vad=-90V, Voltage 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

current :

0.4A

Csus TPVSUS

(SS) 178V ± 0.5V R671 (P) Vsus load

current :

1.7A

*See the Panel label.

3 Adjustment Procedure

TH-42PX50U / TH-42PX500U

3.2. Initialization Pulse Adjust

1.Input the White signal to plasma video input.

2.Set the picture controls 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

TH-42PX50U / TH-42PX500U

3.3. P.C.B. (Printed Circuit Board) exchange

3.3.1. Caution

1.To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.

3.3.2. Quick adjustment after P.C.B. exchange

P.C.B. Name Test Point Voltage Volume Remarks

P Board Vsus TPVSUS (SS) Vsus ± 2V VR351 (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 to damage the P.C.B.

3.4. Adjustment Volume Location

TH-42PX50U / TH-42PX500U

3.5. Test Point Location

TH-42PX50U / TH-42PX500U

4 Conductor Views

4.1. P-Board

C E GIBDFH

P-BOARD (FOIL SIDE)

TNPA3724AB

TH-42PX50U

TH-42PX500U

P-BOARD TNPA3724AB

TH-42PX50U

TH-42PX500U

P-BOARD TNPA3724AB

TH-42PX50U / TH-42PX500U

TH-42PX50U

TH-42PX500U

P-BOARD PARTS LOCATION

TH-42PX50U

TH-42PX500U

P-BOARD PARTS LOCATION

Parts Location

P-BOARD (COMPONENT SIDE)

IC406 F-1

IC503 C-4

IC504 C-5

IC509 F-5

IC512 E-6

Q404 G-1

Q406 G-2

Q412 F-3

Q413 F-3

Q430 B-3

Q431 D-3

Q432 C-3

Q434 B-4

Q436 B-4

Q505 F-5

Q507 G-5

Q518 D-4

Q519 C-5

Q527 F-5

TRANSISTOR

Parts Location

P-BOARD (FOIL SIDE)

IC401 G-4

IC402 F-3

IC403 F-4

IC404 F-4

IC406 D-1

IC407 G-4

IC408 G-4

IC409 G-4

IC411 F-3

IC412 G-4

IC501 G-5

IC502 G-5

IC503 F-4

IC504 F-5

IC505 D-5

IC506 C-5

IC507 H-5

IC509 C-5

IC512 D-5

IC520 E-4

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

Q516 E-5

Q517 D-4

Q518 F-4

Q519 F-5

Q520 D-4

Q525 C-5

TRANSISTOR Q527 D-5

Q530 C-5

Q535 H-5

Q536 F-5

Q537 G-6

Q538 G-6

Q541 E-5

Q544 H-5

Q550 G-5

Q551 G-5

Q552 G-5

Q553 E-5

Q554 E-5

Q557 G-5

Q558 F-5

Q559 G-5

Q560 F-5

Q561 G-5

Q562 F-5

Q564 F-5

Q565 G-4

Q567 F-5

TH-42PX50U TH-42PX500U

TH-42PX50U / TH-42PX500U

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