Viera Plasma Display PC Board Recycling. Component Level Repair. Troubleshooting Hints / Common Symptoms презентация

Содержание

1. Model: TH37PX50 PCB designation: SC Board Part #: TNPA3573 Symptom: Dead/LED off (no blinking code). Cause: Vsus voltage line shorted to ground due to shorted transistors. Remedy:

Слайд 1
Viera Plasma Display PC Board Recycling
Component Level Repair
Course 4
Troubleshooting Hints

/ Common Symptoms

Слайд 21. Model: TH37PX50
PCB designation: SC Board
Part #: TNPA3573

Symptom: Dead/LED off (no

blinking code).

Cause: Vsus voltage line shorted to ground due to shorted transistors.

Remedy: Replace Q6611, Q6612, Q6613, Q6613, D6609, open R6710 & R6708. After replacement, check that Vsus line is no longer shorted to ground.

Common Problems


VSUS





R6708 & R6710:
Part No.ERX2FJSR22D

D6609:
Part No.B0HBSN000008

Q6611-Q6613:
Part No.B1JADN000002

Please refer to the attached Technical Bulletin TT-08-02

Слайд 32. Model: TH42PD50
PCB designation: SC Board
Part #: TNPA3543

Symptom: Picture pixelized @

area horizontally across the screen.

Cause: Initialization pulse T2’s level settings is misadjusted.

Remedy: Adjust VR6557 to obtain specified level settings (T2=184 µsec).
(Please refer to service manual for complete Initialization Pulse Adjustment
procedure).




(1)

(2)

(3)

Common Problems

Please refer to the attached Technical Bulletin TT-08-05

Слайд 43. Model: TH42PD50
PCB designation: C1 Board
Part #: TNPA3545

Symptom: Blue vertical line

@ right most edge of the screen.

Cause: Missing data line.

Remedy: Open R7125


R7125:
Part No.ERJ6GEYJ102

Common Problems

Please refer to the attached Tech Bulletin TT-08-03


Слайд 54. Model: TH42PD50
PCB designation: SC Board
Part #: TNPA3543

Symptom: After pressing power

button, unit shutdown then LED blinks 7X

Cause: SOS protection circuitry detects problem in scan output waveform Vf due to shorted scan output transistor Q6511.

Remedy: Replace both Q6511 and Q6512 at the same time.



Common Problems

Please refer to the attached Tech Bulletin TB-08-04

Слайд 65. Model: TH42PX50 / TH42PX500
PCB designation: SC Board
Part #: TNPA3557

Symptom: Distorted

picture.

Cause: Missing TPVSET voltage due to open R6602 & shorted C6526

Remedy: Replace R6602 & C6526.



Parts list
1. R6602:
Part No. ERG1FJS471D
2. C6526:
Part No. ECA2AHG470

Common Problems

Please refer to the attached Tech Bulletin TB-08-09

Слайд 76. Model: TH42PX50 / TH42PX500
PCB designation: SC Board
Part #: TNPA3557

Symptom: After

pressing power button, unit shutdown then LED blinks 7X

Cause: SOS protection circuitry detects problem in scan output waveform Vf due to shorted scan output transistor Q6511.

Remedy: Replace both Q6511 and Q6512 at the same time.



Common Problems

Please refer to the attached Technical Bulletin TT-08-08

Слайд 87. Model: TH42PX50 / TH42PX500
PCB designation: P Board
Part #: ETXMM563MDK

Symptom: Dead/relay

will not click & LED remains off (no blinking code).

Cause: No output from power output control module.

Remedy: Replace MC701.



MC701 (Power Output Control Module)
Part No.IXMM564M-D-9


Common Problems

Please refer to the attached Technical Bulletin TT-08-07

Слайд 98. Model: TH42PX50 / TH42PX500
PCB designation: P Board
Part #: ETXMM563MDK

Symptom: Dead/relay

will not click &
LED remains off (no blinking code).

Cause: No standby voltage.

Remedy: Replace IC501.



Parts list
IC501
Part No.MIP3E30MP

Common Problems

Please refer to the attached Technical Bulletin TT-08-06

Слайд 109. Model: TH50PX50 / TH50PX500
PCB designation: SC Board
Part #: TNPA3567

Parts list
Q6604

& Q6654:
Part No.B1DFFM000003

Symptom: After pressing power button, unit shuts down then LED blinks 7X

Cause: SOS protection circuitry detects problem in scan output waveform Vf due to shorted scan output transistor Q6604 & Q6654.

Remedy: Replace Q6604 and Q6654.



Common Problems

Please refer to the attached Technical Bulletin TT-08-12

Слайд 1110. Model: TH50PX50 / TH50PX500
PCB designation: SS Board
Part #: TNPA3568

Symptom: Upon

power ON, relay clicks then LED blinks 8X.

Cause: No sustain pulse output waveform due to shorted D6020 and/or D6021.

Remedy: Replace both: D6020 & D6021 at the same time.



Parts list
D6020 & D6021:
Part No.B0HBSN000008

Common Problems

Please refer to the attached Technical Bulletin TT-08-01

Слайд 1211. Model: TH50PX50 / TH50PX500
PCB designation: P Board
Part #: ETXMM564MEK

Symptom: Dead/relay

will not click &
LED remains off (no blinking code).

Cause: No primary supply to T501
thereby no secondary voltage outputs.
Due to open in-rush current limiter K601
& open RF601.

Remedy: Replace K601 & RF601.



Parts list
K601:
Part No. DG12D1-0
RF601:
Part No.HUF5K100J14

Common Problems

Please refer to the attached Technical Bulletin TT-08-11

Слайд 1312. Model: TH50PX50 / TH50PX500
PCB designation: P Board
Part #: ETXMM564MEK

Parts list
MC501:
Part

No.IXMM564M-C-9

Symptom: Upon power ON, relay clicks then LED blinks 10X.

Cause: No switching voltage output from F14_ON or 12V/15V_ON pins..

Remedy: Replace power module MC501.



Common Problems

Please refer to the attached Technical Bulletin TT-08-10

Слайд 1413. Model: TH50PX60 / TH50PX600
PCB designation: SC Board
Part #: TXNSC1BHTUJ

Symptom: Very

intermittently unit shutdown and
LED blinks 7X.

Cause: No solder @ pin 4 of IC6773.

Remedy: Resolder pin 4 of IC6773.







SC BOARD

IC6773

Common Problems

Слайд 1514. Model: TH42PD60
PCB designation: P Board
Part #: TXN/P1ZQTUS

Symptom: Shuts down with

power LED blinking 10x.

Cause: Missing 395Vdc output due to shorted Q412 & Q413.

Remedy: Replace Q412, Q413, Q408, Q409, R478 & PR401 on the P board.

Common Problems

Parts list
1. Q412 & Q413:
Part # - B1DAGQ000013

2. Q408 & Q409:
Part # - B1DHCD000034

3. R478:
Part # - ERJ8GEYJ220

4. PR401:
Part # - K5Y502BA0001


Q412

Q413

Q408

R478

Q409

PR401

Слайд 1615. Model: TH42PD60
PCB designation: P Board
Part #: TXN/P1ZQTUS

Symptom: Dead/power LED off

(no blinking code).

Cause: No primary AC voltage inputs due to open fuses caused by Q406 shorting out.
Remedy: Replace F401, F402, Q406 & check/replace thermal resistor (R410) on the P board.

Common Problems

Parts list
1.Q406:
Part # - B1DEHQ000014
2.R410:
Part # - D1F5100E0003
3.F401 & F402:
Part # - K5D802BNA005

F401 & F402

R410

Q406


Слайд 1716. Model: TH42PX60
PCB designation: D Board
Part #: TNPA3810AHS

Symptom: Picture disappears after

few minutes but sound is OK.

Cause: Low Ldo_5V supply to IC9800 (DC to DC Converter) due to leaky D9801.

Remedy: Replace D9801 on the D board.

Common Problems

Parts List
D9801:
Part # - B0JCDD000002


D9801



Слайд 1817. Model: TH42PX60
PCB designation: P Board
Part #: TXN/P1BFTUS & TXN/P1BFTU
Symptom:

Shuts down with power LED 10 blinks.

Cause: Missing 395Vdc output due to shorted Q412 & Q413.

Remedy: Replace Q412, Q413, Q408, Q409 & PR401 on the P board.

Common Problems

Parts list
1. Q412 & Q413:
Part # - B1DAGQ000070

2. Q408 & Q409:
Part # - B1DHCD000034

3. PR401:
Part # - K5Y502BA0001


Q412

Q413

Q408

Q409

PR401

Слайд 1918. Model: TH37/42PX60&42PX600
PCB designation: P Board

Part #: TXN/P1BKTU (for TH37PX60),TXN/P1BJTUS (for TH42PX60)
& TXN/P1BFTUS (for TH42PX600)

Symptom: Dead/power LED off (no blinking code).

Cause: No primary AC voltage inputs due to open fuses caused by Q406 shorting out.

Remedy: Replace F401, F402, Q406 & check/replace thermal resistor (R410) on the P board.

Common Problems

Parts list
1.Q406:
Part # - B1DEKQ000003
2.R410:
Part # - D1F5100E0003
3.F401 & F402:
Part # - K5D802BNA005

F401 & F402

R410

Q406


Слайд 20
Thank You
For Completing Course Four
-END –
HAVE A NICE DAY

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