Troubleshooting; No Power - Samsung LDO19WS Service Manual

4 Troubleshooting

4-1 No Power

Does DC 13V, 5V
appear at CN400?
Yes
Does DC 3.3V
Appear at FT412?
Yes
Does DC 3.3V
Appear at FT414?
Yes
Check IC702(VCTI-F2), IC704,
and IC301(SE6181LA).
No
Check Inverter/Adaptor Board
No
Check circuits related
to IC405.
No
Check circuits related to
IC407.
4 Troubleshooting
4-1