4. One color is missing
One color is missing
Yes
Is the OSD color
normal?
Yes
Is the input
signal normal?
Yes
Are the
R,G,B Digital values
(every eight bits) correct
on ADC output
stage?
Yes
Trouble in the soldering
of R,G,B data lines
from output of ADC
to Scaler(U9).
No
Check the output
signal of Scaler.
Check the video signal
No
cable or R,G,B
con-ass'y.
No
Check the ambient
circuit of ADC.
25