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TROUBLE SHOOTING
TABLE (Continued)
No color or poor
tint with PAL
signal
I
Is there video signal input at pin (29)
of IC801?
I
Yes
V
Are R-Y and 6-Y signals put out of
pins (45) and (46) of IC801?
I
Yes
v
r
~~--~~~--
Check IC802, IC804 and its
1
peripheral circuits.
I
No color or poor
tint with SECAM
signal
Is there chroma signal input at pin
1 (20)ofIC803?
, yes
I
Are there R-Y and B-Y signal outputs
at pins (11) and (12) of IC803?
v
r
L
CheclC~l~d~
-1
peripheral circuits.
I
------
4
I
Check IC801 and its
1
peripheral circuits (X802 and
,
C811 in particular).
No
I
Check IC401 and its peripheral
'
*
circuits.
L
--------m
I
No
l
Check IC803 and its peripheral
I
L
circuits.
~~~--I--~
-I
I
Yes
7
/
r
~~~--~~~-
Is voltage of over 4V fed to pin (49)
No
Check IC803 and its peripheral
1
of IC801?
L
circuits.
---------
J
Yes
r
----Am---
1
Check IC801, IC802, IC804 and its
L
peripheral circuits.
---------
J
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