Samsung CS21A9W2QS/MUR Service Manual page 31

5. Troubleshooting
5-1 No Power
Connect
the Power Code
Check
the
Power LED
LED Off
Check
the
IC201S #8
Abnormal
Check
the
+13V LIne
Abnormal
Check
the M-Fuse
FD802S
Abnormal
Check
the IC801S,
D801S~D804S,
FP801S
Samsung Electronics
Check the
LED On
IC201S, B+
Port 14, 39, 51, 54
Abnormal
Normal
Check/Replace
the IC802
Check the
Normal
IC201S Port
X-tal, SDA, SCL
Normal
Check the
Pin #33
of IC201S
Normal
Check
the
B+ 130V Line
Normal
Check / Replace
the Q401
Troubleshooting
Abnormal
Replace
the IC201 S
Abnormal
Abnormal
Check
the FBT,D805
5-1