Troubleshooting - Samsung LW17M11C Service Manual

5 Troubleshooting

5-1 No Power
Does proper DC 14V/15V appear
1
at DC jack connected to CN120?
Yes
Does proper DC 5V
4
appear at Pin 2 of IC102?
Yes
Does proper DC 2.5V
2
appear at Pin 2 of IC106?
Yes
Does proper DC 14V
3
appear at Pin 5 of IC108?
Yes
Does proper DC 5V
1
appear at FT107?
Yes
Check IC401.
LW15M13C/LW17M11C
No
Check FT101 and FT103.
No
Check IC103 and IC102.
No
Check IC106.
No
Check IC108.
No
Check IC108.
5-1