Scart
Is display normal?
Normal
Does the screen appear?
No
No
Yes
Yes
B Display abnormal
Check if voltage of screen F1 and F2 is 3.3V.
Check if voltage of 32 pin of PT6320 is -24V.
Check grounded negative voltage of screen F1 and F2.
Replace PT6320.
Check if connection cord between screen
and decoder ass'y is broken.
Check if PT6320 pin is connected.
check if pin of screen is connected.
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