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Slide #41
Troubleshooting 2 Blinks Error Code
When troubleshooting a PDP TV that is shutting down and the power LED blinks 2
times:
Find out if 15V is output at pin 1 of connector P6 of the P board. If 15V is present,
it’s likely that the A board is defective.
If no voltage is output, determine if this is caused by the P board or the boards
using the P15V.
The boards connected to the P15V can only affect the P15V if there is a short
circuit drawing excessive current.
To check for a short circuit, measure the resistance between pin 1 of connector P6
and ground (Chassis). If P15V is shorted, find out if the short is coming from the P
board or if it’s coming from any of the other boards that the 15V volt is connected
to.
If the P board is OK, disconnect the connectors providing the P15V to all these
boards while measuring resistance between pin 1 of connector P6 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.