Troubleshooting 5 Blinks Error Code - Panasonic TH-42PX80U Service Manual

Troubleshooting 5 Blinks Error Code

When troubleshooting a PDP TV that is shutting down and the power LED
blinks 5 times:
Find out if pin 1 of connector P12 is shorted to ground. If it is, possibly the
panel is bad. If there is no short circuit, proceed to check the P5V line.
Find out if 5V is output at pin 5 of connector P25 of the P board.
If no voltage is output, measure resistance between pin 5 of connector
P25 and ground (Chassis). If a shorted 5V is detected, find out if it's
created on the P board or if it's created on any of the other boards that the
5V volt is connected to.
If the P board is OK, disconnect the connectors providing the P5V to all
these boards while measuring resistance between pin 5 of connector P25
and ground.
The defective board is found when the connector that provides the P15V
to that board is removed and the short circuit is no-longer present.
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