Sharp XV-C100A Service Manual page 24

XV-C100A/M/E
TROUBLE SHOOTING TABLE (Continued)
No colour or poor
tint with PAL
signal
Is there video signal input at pin (29)
of IC801?
Are R-Y and B-Y signals put out of
pins (45) and (46) of IC801?
Check IC802, IC804 and their
peripheral circuits.
No colour or poor
tint with SECAM
signal
Is there chroma signal input at pin
(20) of IC803?
Are there R-Y and B-Y signal outputs
at pins (11) and (12) of IC803?
Is voltage of over 4V fed to pin (49)
of IC801?
Check IC801, IC802, IC804 and their
peripheral circuits.
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
24
Check IC401 and its
peripheral circuits.
Check IC801 and its
peripheral circuits (X802 and
C811 in particular).
Check IC401 and its peripheral
circuits.
Check IC803 and its peripheral
circuits.
Check IC803 and its peripheral
circuits.