Troubleshooting - Samsung GTR23KE Service Manual

4 Troubleshooting

4-1 No Power
LAMP off, power indicator
Does proper DC 12V
appear at C820, C823?
Does proper DC A3.3V,
Does proper DC 5V, 3.3V,
1.8V appear at C813, C811,
A power is supplied to set?
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LED red color?
Yes
Yes
A5V appear at
C834, C830?
Yes
C816?
Yes
No
Check a connection a power cable.
No
Change a Assy PCB Power.
No
Check a IC816, IC815
Change a main PCB ass'y.
No
Check a IC821, IC811
Change a main PCB ass'y.
Check a other function.
No
(No picture part)
Replace a lcd panel.
4 Troubleshooting
4-1