Troubleshooting - Samsung RE23EO Service Manual

5 Troubleshooting

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