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Question

LG TV Turns on then turns off.

I recently have been having an issue with my LG Tv. The TV turns on for just a few short seconds, then turns off. The unit does turn on right after but the TV only stays on for less than 15 seconds. I recently purchased a new power board card for it and installed it, but the issue was not there and the TV still has the same problem. I was just curious to see if there was a known issue with the TV that could help me steer in the right direction of solving my issue I’m currently experiencing

LG EAY62810701 Power Supply LGP55-13PL2 was the new part I did install. Thank You.

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All Answers

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Answer
What you need next is the service manual.

In reply to: LG TV Turns on then turns off.

And the skills to use it. Changing boards is OK if you are OK with "maybe this one." But even in repair depots I see both methods used as board swaps are faster than analysis.

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I'm new to this site

In reply to: What you need next is the service manual.

You seem knowledgeable on TVs and I didn't know where to post my problem so hopefully it's ok I posted here.
I have a similar situation with a 47ln5700 I just purchase, turns on and with-in seconds it turns off. I purchased a powerboard (same model ofc) and switched it but it does the same thing, I checked all the capacitators and they're good. Any ideas what could keep causing this?
Thank you in advance

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Too many causes.

In reply to: I'm new to this site

The 5700 you noted is LED so a shorted out LED strip can cause trouble too. This is why when I work on these (which is rare because it's usually never worth it with cheap sets galore now.) I have to have the service manual. I have upset a few because I won't do much without it.

All the techs I know, unless it's something they think they know what it is, which is of course guessing won't touch the set until the service manual shows up.

Post was last edited on July 24, 2018 3:52 PM PDT

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Thank you

In reply to: Too many causes.

I bought the tv for $30 And thought I could turn a profit but I guess not. Thank you very much and have yourself a nice rest of your evening

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I forgot to share a link to some free videos.

In reply to: Thank you

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Screen comes on

In reply to: Too many causes.

The screen comes on, The logo "LG" comes on and it looks like if there's no dmg of any sort to the screen or led lights then shuts off (just trying to narrow it down) could it still be an led light?

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There are videos on LED strip testing.

In reply to: Screen comes on

Examples: https://www.google.com/search?q=TV+LED+STRIP+TESTING

At no time did I write this is it. When you get a set like this you hit the service manual to follow it's diagnostic tree. But there are things out there you can check out and if you repair a lot of things then you have the Volt meter and skills.

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Thank you

In reply to: There are videos on LED strip testing.

Thank you I will try to do as much as I can
Have yourself a nice day

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