Panasonic TC-L42D2 Technical Manual page 58

2010-lcd hd/fhd tv (13th generation)
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4 Blinks SOS Troubleshooting
Start
Is there 12V at pin 4
of CN P2 before the
TV shuts down?
Yes
A board
No
Is pin 4 of
No
CN P2
shorted?
Yes
Disconnect the
connector A03.
Is pin 4 of
CN P2
shorted?
Yes
P board
P board
DTV 12V
supply problem.
No
A board
Slide # 58

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