Troubleshooting - Samsung 1510MP Service Manual

5 Troubleshooting

5-1 No Power
Does proper DC 14 V
appear at DC jack connected
to at Pin 1, 2 of CN101?
Yes
Does proper DC 5 V
appear at Pin 6, 7 of CN101?
Yes
Does proper DC 2.5 V
appear at Pin 3 of IC107?
Yes
Does proper DC 8 V appear at
Pin 3 of IC400, IC401?
Yes
Does proper DC 5 V
appear at Pin 3 of IC411?
Yes
Check IC202.
MH15NS/MH17NS
No
Check SMPS PCB and adapter.
No
Check SMPS PCB and adapter.
No
Check IC104.
No
Check IC102.
No
Check IC411.
5-1