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LG OLED TV switching on & then off automatically

When the TV is turned on it switches off automatically after about 5 seconds, the TV is about 5 years old & the model is 55EA9800 curved TV

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  • LG Master
  • 76,099 Answers

Sounds like main board fault. If you wish to get some details; visit the site linked here. Pull up older posts.
https://electronicshelponline.blogspot.com/ Faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent.
Search the site by type in the "brand name" to your device; [Exclude the model number], in the "Search box at the top right of the display window of the Homepage" to get gathered related posts. See the site by a desktop. Mobile view has no search box. If you are viewing it by your mobile, see it in webview.]

Posted on Jun 29, 2019

  • Anonymous Jun 29, 2019

    Thanks for your help the Knight, there is another symptom with my tv I found, if I place a stand fan behind the tv & switch the room AC on, after about 30mins the TV will eventually switch on & stay on! I live in a hot & humid country & was wondering if these tv's have any safety devices for temperature or humidity or could there actually be a fault with the power board? You said it sounds like the main board in your reply but with this additional information do you still think that.

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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SOURCE: LG plasma tv

Most likely it's the PDP panel wires failure. It won't cost you more to repair then to buy a new one.

Posted on Apr 28, 2008

  • 1 Answer

SOURCE: Automatic Switch off

i have a mobile of nokia 3110. i found a problem in it that it suddenly restarted again and again ?is it any virus problem or any thing else? if yes where i found its anti virus plese suggest

Posted on Jun 25, 2008

  • 112 Answers

SOURCE: My TV will not turn on....it's red light just blinks

The main board or the power supply is seeing a start-up problem.
When there is a start-up problem discovered the TV will flash the red light and the TV will not be allowed to power up.
A TV service tech will have to check out all the different boards to find what the problem is. Sorry, there is not an easy fix for you issue.
I hope this information has helped you.
Good Luck.

Posted on May 26, 2010

toolkits
  • 1099 Answers

SOURCE: tv is automatically switching to stanby mode after a few seconds

Hello,

Power supply board have problems,just not dead yet.Replaced the power supply board,will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Hope this helpout......

Posted on Aug 03, 2010

Testimonial: "your a star thank you"

  • 49 Answers

SOURCE: i have a 21inch TV (LG golden eye) which is 10

This is line output transformer problems. Before changing LOT,watch any dry soldering is there and also check vertical output ic is good or bad ?by replacement methode.
NOTE- if you know the protection pin, isolate the pin and switch on tv through 200watts bulb seriesly.then watch the symptomes.
Thanking you

Posted on Aug 04, 2010

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I have a 21inch TV (LG golden eye) which is 10 years old from and now i am facing a problem that when i switched on the tv the standby LED of the tv blinks for a few seconds and then automatically off....


This is line output transformer problems. Before changing LOT,watch any dry soldering is there and also check vertical output ic is good or bad ?by replacement methode.
NOTE- if you know the protection pin, isolate the pin and switch on tv through 200watts bulb seriesly.then watch the symptomes.
Thanking you

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