Samsung RE23EO - Troubleshooting

5 Troubleshooting
5-1
5 Troubleshooting
5-1 No Power
Does proper DC 12V
appear at C801, C807?
Change a Assy PCB Power.
Yes
Yes
No
Check a connection a power cable.
No
Does proper DC A3.3V,
A5V appear at
C865, C863?
Check a IC812, IC801.
Change a main PCB ass'y.
Yes
No
Does proper DC 5V, 3.3V,
1.9V appear at C870, C861,
C847?
Check a IC813, IC811, IC807.
Change a main PCB ass'y.
Yes
A power is supplied to set?
Check a other function.
(No picture part)
Replace a lcd panel.
No
No
LAMP off, power indicator
LED red color?