Cvbs Video Output - LG S92T2-C Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE
5. NO CVBS VIDEO OUTPUT
No CVBS / COMPOSITE
video on display
YES
Is there
CVBS signal
on L2V1?
YES
Is there
CVBS signal out
of L2V1?
YES
Is there
signal on D201?
YES
Check JK251
and RCA cable connection.
NO
Check IC501's VCC
or replace IC501.
NO
Replace L2V1.
NO
D201
5 V OK?
Replace D201.
2-55
NO
YES
Check IC153.