Samsung LE40N71B - Checkpoints by Error Mode; No Power

4 Troubleshooting
4-2
4-2-1 No Power
4-2 Checkpoints by Error Mode
Does proper DC 12V
appear at CM801?
Change a Assy PCB Power.
Yes
Yes
No
Check a connection a power cable.
No
Does proper DC A3.3V,
A5V appear at
C1059, C1167?
Check a IC1008, IC1004.
Change a main PCB ass'y.
Yes
No
Does proper DC5V, 3.3V, 1.8V
appear at C1015, C1194,
C1109?
Check a IC1018, IC1011, IC1002.
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 blue color?