Checkpoints By Error Mode - Samsung LE40M71B Service Manual

4 Troubleshooting

4-2 Checkpoints by Error Mode

4-2-1 No Power
LAMP off, power indicator
LED blue color?
Yes
Does proper DC 12V
appear at CM801?
Yes
Does proper DC A3.3V,
A5V appear at
C1059, C1167?
Yes
Does proper DC 5V, 3.3V,
1.9V appear at C1015, C1194,
C6026?
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 IC1008, IC1004.
Change a main PCB ass'y.
No
Check a IC1015, IC812, IC1002, IC606,
IC818. Change a main PCB ass'y
Check a other function.
No
(No picture part)
Replace a lcd panel.