Panasonic TC-L42D2 Technical Manual page 52

1 Blink SOS Troubleshooting
Start
Is the Inverter_on
command (3V) at
pin 3 of CN A03 before the
TV shuts down?
Yes
Does pin 4 of
CN A03 remain high
before the TV shuts
down?
Yes
Is there AC output
at pin 1 and 2 of CN P5, P6,
P7 and P8 before the TV
shuts down?
Yes
LCD Panel
Power supply has no problem.
Is there DTV12V
No
at pin 4 of CN P2 before the
TV shuts down?
No
A board
No
P board
The inverter circuit is malfunctioning.
No
Yes
P board
Without DTV12V, the
inverter circuit does not work
Slide # 52