Read LG 37LC51 (CHASSIS:LP78A) Service Manual online
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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) Light does not come into the front LED.
(2) Check process
Plug in a power cord
No
Yes
Is plug in power
cord inserted ?
cord inserted ?
Connect a cable.
Plasma(CN1), LCD(SC100)
Plasma(CN1), LCD(SC100)
No
Yes
Is the Line Filter and
PSU connected?
PSU connected?
Replace the fuse.
No
Yes
Is the fuse of PSU
normal? Plasma(F101),
LCD(f100)
Connect the 13-14pin cable.
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.
to PSU, the AC voltage marking is
authorized on manual.
When ST-by 5V is not operated,
replace PSU.
No
Yes
Is it connected
that PSU and 13-14pin
cable in VSC
board?
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