Panasonic TH-42PD12E Service Manual ▷ View online
17
TH-42PD12E
7.2.
No Power
First check point
There are following 3 states of No Power indication by power LED.
There are following 3 states of No Power indication by power LED.
1. No lit.
2. Green is lit then turns red blinking a few seconds later.
3. Only red is lit.
2. Green is lit then turns red blinking a few seconds later.
3. Only red is lit.
7.3.
No Picture
18
TH-42PD12E
7.4.
Local screen failure
Plasma display may have local area failure on the screen. Fig - 1 is the possible defect P.C.B. for each local area.
Fig - 1
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TH-42PD12E
8 Service Fixture & Tools
8.1.
SC jig
Purpose:
To find the failure board (SC or SU/SD) when the power LED is blinking 7 times.
SC jig:
Jumper connector to connect to SC50 connector on SC board
Part number:
TZSC09187
How to use:
Caution: Remove SC jig from SC board after inspection.
1. Remove all connector between SC board and SU/SD board to isolate SC board from both SU and SD board electrically.
Note: The board will be damaged if all connector is not removed (for example; remove connector only for SU board
and stay connecting with SD board. The boad will be damaged.)
2. Connect SC jig to connector SC51 at left bottom side of SC board.
3. Turn on the TV/Display Unit and confirm the power LED blinking.
3. Turn on the TV/Display Unit and confirm the power LED blinking.
LED blinking: Possible cause of failure is in SC board
No LED blinking (Lighting or no lighting): Possible cause of failure is in SU or SD board
No LED blinking (Lighting or no lighting): Possible cause of failure is in SU or SD board
4. After inspection, turn off the TV/Display Unit and wait a few minutes to discharge.
5. Remove SC jig from SC board.
5. Remove SC jig from SC board.
Remark: This SC jig can be used for all 2009 Plasma TV and Plasma Display.
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TH-42PD12E
9 Disassembly and Assem-
bly Instructions
• To disassemble P.C.B., wait for 1 minute after power was off
for discharge from electrolysis capacitors.
•
, ,
, and marks indicate screw positions.
9.1.
Removal of Rear Cover
1. Remove screws (
×13 ,
×22 ,
×4 ) and then remove
the Rear Cover.
9.2.
Removal of A/Z-Board Block
1. Disconnect the connectors (A2, A5, A6, A15, A22, A24).
2. Remove 5 screws and then remove the A/Z-Board Block.
2. Remove 5 screws and then remove the A/Z-Board Block.
9.3.
Removal of A-Board
1. Remove the A/Z-Board Block.
(Refer to Removal of A/Z-Board Block)
2. Disconnect the connector (A10).
3. Remove 2 screws (A) and 4 Hexagonal-Head screws.
4. Remove 6 screws and then remove A-Board..
9.4.
Removal of Z-Board
1. Remove the A/Z-Board Block.
(Refer to Removal of A/Z-Board Block)
2. Disconnect the connector (A10).
3. Remove 3 screws (B) .
4. Remove 3 screws and then remove Z-Board.
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