Troubleshooting - Samsung ES17N series Service Manual

5 Troubleshooting

5-1 No Power
Does proper DC 14 V appear at
DC jack connected to CN801?
Yes
Does proper DC 5 V appear at
Pin 1 of IC803?
Yes
Does proper DC 14V appear at
Pin 2 of IC803?
Yes
Does proper DC 3.3 V appear at
Pin 1 of IC804?
Yes
Does proper DC 2.5 V appear at
Pin 4 of IC105?
Yes
Check IC908.
ES15N*/ES17N*
No
Check SMPS PCB and Adapter.
No
Check IC803.
No
Check IC803.
No
Check IC804.
No
Check IC105.
CONFIDENTIAL
5-1