Sansui HDLCD3200C Service Manual page 21

TROUBLESHOOTING GUIDE
THE PICTURE APPEARS,
BUT THE AUDIO DOES NOT
APPEARS. (AT RF MODE)
No
Connect CP302.
1
Yes
ls there signal at pins _ Yes
1 and 4 of CP302? _[ Change SP301 and SP302.
ls there signal at pins 2
and 5 of IC302? J
No
Yes
t heck IC302 and peripheral
circuit.
Yes
ls there signal at pins _
AA3 and AA4 of
IC2801?
Yes
ls there signal at pins 1 _
and 2 of IC6551?
No
Yes
Yes
l Change TU5801. 1
Check Connection of IC302.
l Check IC6551 and
peripheral circuit.
Check IC6552, IC6553 and
peripheral circuit.
circuit.Check IC5801 and peripheral
E-2