LG Electronics LD84A service manual Troubleshooting, No Power, Symptom, Check process

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

Is inserted a plugged	No
		Plug in the power cord.
in power cord?

Yes

Is the Line Filter	No
		Connect the Cable.
and Power Board Cable
connected?

Is the fuse of PSU	No
		Replace the Fuse.
normal?

Yes

Is it connected	No
		Connect the Cable P1100.
that PSU and P1100 in
Main B/D?

Yes

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.

If there is normal status, Replace main board.

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