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LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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TROUBLESHOOTING
1. No Power
(1) Symptom
1) It is not discharged minutely from the module.
2) Light does not come into the front LED.
(2) Check process
Plug in the power cord.
Yes
No
Connect the Cable.
No
Is the fuse of PSU
normal?
Replace the Fuse.
Yes
No
Is it connected
that PSU and P1100 in
Main B/D?
Connect the Cable P1100.
If there is normal status,
Replace main board.
Yes
No
After all cables connect is removed to PSU, the AC voltage
marking is authorized on manual.
When ST-BY 5V, +15V are not operated, replace PSU.
Is inserted a plugged
in power cord?
Is the Line Filter
and Power Board Cable
connected?