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
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.]
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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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.
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
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.
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......
Testimonial: "your a star thank you"
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
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