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Panasonic gp6d th-42px20u th-50px20u th-42pa20u th-37pa20u update information Service Manual

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Page of 70
Dark picture Flowchart 
 
 
 
YES
Are the video signals 
correct at the D 
Board input? 
Reference the DG Board 
troubleshooting charts 
Are the SS 
board LEDs lit?
The SS board is suspected 
to be defective.
YES
Is the TPSS1 
Waveform incorrect? 
The D Board is suspected to 
be defective.
YES
Are the voltages at connectors 
SS11 and SS12 of the SS 
board correct?
The Power Supply is suspected 
to be defective. 
NO 
NO 
NO
The D Board is suspected to 
be defective.
Are the trigger signals at 
connector SS23 of the SS 
board correct? 
 
 
NO
 
 
 
 
 
 
NO
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
YES
 
 
 
 
 
 
 
YES
 
 
The SS Board is suspected 
to be defective.
 
 
 
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