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I turn on tv it sees ok then turns itself off

Lg tv model 50pg20d-AA turns on works for about 30 seconds then it turns itself off

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: LG tv turns on by itself

this problem is with the inner small micro-swtches ,the side buttons inside are getting intermittantely short...changing of those switches will solve the prob. tc--

Posted on Oct 28, 2007

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dickgs
  • 22 Answers

SOURCE: TV turn on and off

Your TV has a power problem, it maybe high or low supply voltage that causes the TV to turn it self off because of an error. A technician from the manufacturer knows what error it has just by looking at the flashing standby light. Best is to take it to an authorize service center for repair... ^_^

Posted on Jan 16, 2008

  • 3 Answers

SOURCE: I have a 32" HD AKAI TV that keeps turning itself off

If the service shops didn't charge people $200 to fix this I would not post.. But since they do - here's the $8 fix.

If you are electronically inclined, replace the three 1000uf 16v electrolytic capacitors in the power supply board located above the power switch. They are likely bulging out at the top and failed. They are the three in a row at the top - center of the board, located between the two black heat sinks. Make sure you get caps rated for 105c degrees! I recommend replacing them with 1000uf 25v caps. 35v caps will work but might be a tight fit as they are larger diameter.

Should cost you about $8 for the parts shipped. You can get them from partsexpress or digikey or any good local electronics store. Your local radio shack may have them but they won'y be 105c and thus may not last long.

Not handy, ask around, there is usually some electronic tweaker guy around that will install them for a few bucks.

This has solved the turns on / then off problem every time in the 3 I've done.

Posted on Jan 11, 2009

gsalmen
  • 77 Answers

SOURCE: lg tv automatically turn on and off. Power surge

the software in the main control is damaged. call your lg servicer in your area. he might get you a software update

Posted on Jul 09, 2009

  • 1 Answer

SOURCE: 42 in LG LCD TV turns off by itself

Found that TV started switching off by itself. Would try to come on..green light blinked for 2-3 seconds, tv came on (with picture and sound) for 1 or 2 seconds and then it would turn itself off. Found that the issue is with one channel only. If you are facing this issue....try quickly changing the channel the moment it comes on. You can do it either with remote or with the TV buttons directly. also in the same logic, if this is still happening, try changing the source to another (rgb-pc, av1, av2 etc). Basically change it from whatever input it is on currently, if changing the channels does not work. My symptom was that the tv made a loud 'TIK' 'TAK' sound which is louder than normal.

Posted on Mar 17, 2010

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everyone is wrong here.

Disconnect the power from the mainboard the board down on the right hand side.

now short out the auto_gen with a peice of wire while tv unplugged.

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Hi there WebRepOverall ratingThis site has no rating(not enough votes)

I am not sure when you posted this but I have the same model and reading the manual it seems to be the lamp. Please replace the lamp (check the lamp model on the outside of the TV on the right side facing the TV).

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