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