No Sound (Picture Ok) - Samsung CXJ1331/TUCX Service Manual

6-3 No Sound (Picture OK)

Check/Replace
IC201
Check IC901 Pin 16
Abnormal
Check Q902
Normal
Check/Replace
IC601
Check/Replace
IC601
Samsung Electronics
Abnormal
Check/Replace L204
Check Z601
Check IC201
Check IC901
Check the
Abnormal
signal change of IC201
depending on the change
of VOL
Normal
Check
Abnormal
the signal input
to IC601 Pin 3
Normal
Check
the V input
DD
to IC601
Normal
Abnormal
Check the signal
output from IC601 Pin 2
Check the voltage of
IC201 Pin 48 (9V)
Abnormal
Check/Replace L201
Check
Abnormal
the signal input
to IC201 Pin 52
Check
Abnormal
the audio signal output
from IC201 Pin 54
Normal
Check IC901.
Abnormal
TV : Pin 15 (High)
Line : Pin14 (High)
Normal
Check
the Audio signal
input to VCR
Check
Abnormal
the signal input
to IC201 Pin 53,55.
Abnormal
Check 13.5V
Normal
Check/Replace
Speaker
Normal
Normal
Abnormal
Normal
Abnormal
Troubleshooting
Check VCR
Check C224
6-3