Dark Picture Flowchart - Panasonic TH-42PX20U Service Update Information

Dark picture Flowchart

Are the voltages at connectors
The SS Board is suspected
Are the video signals
correct at the D
Board input?
YES
Are the SS
board LEDs lit?
YES
Is the TPSS1
Waveform incorrect?
YES
SS11 and SS12 of the SS
board correct?
YES
Are the trigger signals at
connector SS23 of the SS
board correct?
YES
to be defective.
NO
Reference the DG Board
NO
The SS board is suspected
NO
The D Board is suspected to
The Power Supply is suspected
The D Board is suspected to
45
troubleshooting charts
to be defective.
be defective.
NO
to be defective.
NO
be defective.