Troubleshooting - Samsung CM27001SDX/KMT Service Manual

5. Troubleshooting

5-1 No Power
Counect
the Power code
Check
the
Power LED
LED Off
Check the
12.5V-A Line
Abnormal
Check the
FD802S, IC801S
or AC-Fuse
Samsung Electronics
Check the
LED On
3.3V-A,8V-A Line
of IC201S
Abnormal
Normal
Check/Replace
IC802
Check the
Normal
X-tal,SDA,SCL port
of IC201S
Normal
Check the
(33)Pin (H-Drive)
of IC201S
Normal
Check the
130V- A Line
Normal
Check / Replace
Q401
Troubleshooting
Abnormal
Replace
IC201 S
Abnormal
Abnormal
Check the
FBT,D808
5-1