Question about LG Televison & Video

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Have an LG 50PN6500 plasma that’s 4 years old. Picture is still great, but last year it started powering off by itself for a few minutes at a time, then it would turn back on. We took it to the local LG repair shop (who “tested” it for a month), but said it never shut off on its own, and the service menu wasn’t logging any error codes. We took the tv back and it was running fine for about a month, but now it will shut off from odd IR blasts, then turn back on after a few minutes. Such as pressing SLEEP on the factory LG remote to bring up the sleep menu will shut it off, and adjusting the volume on our Yamaha amp with a Harmony remote will also shut the tv off temporarily. At first I was thinking it may have been the psb, but when the repair shop said it never shut off for them, I’m thinking it may be the input board since it’s reacting to IR blasts. Anyone have any ideas?

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  • LG Master
  • 1,691 Answers

Some components in the TV, and most likely in the power supply are starting to become temperature sensitive. Some Capacitors tend to become this way when they age. To find the temperature sensitive caps that are failing it will take a very experienced TV or electronics service person with a supply of liquid air and a heat gun to thermo test. He will also require the proper test equipment to verify. The big service centers should be able to troubleshoot for this, but the time involved and the cost of the parts will be expensive. If the set is out of warranty, it would be more feasible to get a new one!

Posted on Dec 30, 2017

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5 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Jaime Hernandez

  • 2337 Answers

SOURCE: iNSIGNIA 26" FLAT SCREEN MODEL #246ALC27FB26006527

These LCDs have a feature to turn OFF after some time if they do not sense any signal getting into the TV, that is why when you use it as a PC monitor and leave ON; it will turn OFF by itself.
The short term solution to make the LCD power up properly when using it as a PC monitor would be to unplug it when it turns OFF by itself and plug it back in.
Let me know if you need further assistance.

Posted on Oct 24, 2008

B52Tony

Tony Nguyen

  • 96 Answers

SOURCE: LG 47LC7DF LCD TV Remote Sensor not working

IR senor may not be bad. Try using a different remote (universal) and program to TV. If universal remote works and your doesn't, you may need to purchase a remote instead of IR board. If you confirmed that the IR board is bad then replacing the IR board will fix the remote issue. IR board is an easy fix. Just open the back cover out and it's located right in the middle toward the bottom of the TV.

Posted on Jun 22, 2009

Anonymous

  • 35 Answers

SOURCE: monitor worked fine for years, then permanent standby

hey
usually this happens due to static try to power cycle the monitor by disconnecting all the cables from the monitors
then connect teh cables back one by one
and see if it works and if not yes get teh monitor replaced

Posted on Sep 18, 2009

Anonymous

  • 1 Answer

SOURCE: power supply problem

mine did this and it was the power supply like 140 bucks from the best buy parts search

Posted on Nov 26, 2009

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