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OPTICAL IN does not work
OPTICAL in does
not work
Go
Check voltage at P4 PIN1:3.3V on Main
Board whether normal or not
Yes
Check Main Board P4 PIN3 signal input
whether right or not
Yes
Check voltage at U707 PIN5:3.3V on Main
Board whether normal or not
Yes
Check Main Board C108
5-9
No
Refer to Power Board CN502
No
Check Main Board C108,
No
Refer to Power Board CN502
Trouble shooting Chart
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