Read LG 42LG70YR (CHASSIS:LP81D) Service Manual online
TROUBLE SHOOTING
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1) Symptom
1) It is not discharged minutely from the module.
2) Light does not come into the front LED.
2) Light does not come into the front LED.
2) Check process
1. No power
No
Yes
Is plug in
Power cord inserted?
After all cables connect is
removed to PSU.
The AC voltage marking is
authorized on manual.
When ST-By 5V is not operated.
replace PSU.
Plug in power cord
No
Yes
Is the Line Filter
and PSU connected?
Connect a cable to SC100
No
Yes
Is the fuse of
PSU normal?
F101
Replace the fuse.
No
Yes
Is it connected that
PSU and P1100 in
Main Board
Connect a cable P1100
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