Checkpoints By Error Mode; No Power - Samsung LE26S81BX Service Manual

4 Troubleshooting

4-2 Checkpoints by Error Mode

4-2-1 No Power

LAMP off, power indicator
LED red color?
Yes
Does proper DC 12V
appear at CN101?
Yes
Does proper DC A3.3V,
A5V appear at
C126, C128?
Yes
Does proper DC 5V, 3.3V,
1.8V appear at C120, C176,
C159?
Yes
A power is supplied to set?
4-2
No
Check a connection a power cable.
No
Change a Assy PCB Power.
No
Check a IC104.
Change a main PCB ass'y.
No
Check a IC103, IC109, IC105.
Change a main PCB ass'y
Check a other function.
No
(No picture part)
Replace a lcd panel.