Service manual

30
1. Abnormal mode detect
1-2.
Abnormal mode detect for AV Source
Is a input
signal of Decoder
(pin 10 at CVBS or
pin 14, 18 at S-
Video of U5)?
Abnormal mode
detect
No
No
Yes
Is clock of
Decoder (pin 94, U5)
27MHz?
Check CON 4 and
I/O Board.
Trouble in
decoder(U5).
Trouble
in Scaler(U9).
Yes
Yes