Troubleshooting; No Power - Samsung LE23T51B Service Manual

4 Troubleshooting

4-1 No Power

LAMP off, power indicator
LED red color?
Yes
Does proper DC 12V
appear at C820, C823?
Yes
Does proper DC A3.3V,
A5V appear at
C834, C830?
Yes
Does proper DC 5V, 3.3V,
1.8V appear at C813, C811,
C816?
Yes
A power is supplied to set?
No
Check a connection a power cable.
No
Change a Assy PCB Power.
No
Check a IC816, IC815
Change a main PCB ass'y.
No
Check a IC821, IC811
Change a main PCB ass'y.
Check a other function.
No
(No picture part)
Replace a lcd panel.
4 Troubleshooting
4-1