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Question

LG 42"LCD tv turns itself off

Feb 18, 2016 6:31PM PST

My tv will sometimes work great for days,,,then it will shut off the pic and sound and the red corner light flashes,,,,you have to turn it back on and it may be fine or it may do it again,,,it doesn't turn back on by itsself

Discussion is locked

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Answer
Remember. Post full model number and age.
Feb 19, 2016 10:23AM PST

No TV I know turns on by itself. Many reasons why. But the turning off is usually a sign it needs service.

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42" tv problem
Feb 19, 2016 11:12AM PST

Lol,,,thx for the reply,,,i realize this is NOT normal and it "needs service" im trying to find out what the problem is so I can replace the bad part.....its a 42LK520 model
Again, I KNOW there a problem...if its a known power supply issue, ill replace the power supply
Thx

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No TV techs post here.
Feb 19, 2016 12:46PM PST

My background is electronics design and if I work on a set I want the service manual and then it's on my bench with the usual VOM and oscilloscope. Do you have these tools?

I'm seeing a lot of posts where folk want a guaranteed this will fix it, tell me what to replace posts.