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Blinking green light no picture for a lg lcd tv

When turn on the tv it blinks green and there is no picture.

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  • Anonymous May 25, 2008

    Same thing happened to me. Been out of town for a week came home and am looking for some sort of answer to this problem.

  • Anonymous Sep 15, 2008

    same thing has happened to me also! I turned off the TV for the night and woke up the next morning to watch TV and my tv make a sort of clicking noise and blinked a couple times and it never turned on. No picture, sound or anything,., very odd

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We have a bunch of 23" LG units that all failed with the flashing green light problem. I opened it up and traced it to a bad 3.4v output on the power supply which was caused by a puffed up capacitor on the board. If you are capable, you can do the repair and they have all worked fine since. BTW, they ran 24h a day for 2 years before this happened.

Posted on Sep 16, 2009

  • jjthomas3 Jun 19, 2011

    We discovered a bad solder trace, oddly, if you used a hair dryer to pre-heat the back of the TV the thermal expansion would eventually allow the TV to turn on and stay on, until someone would turn it off again. We had to replace the board in the PowerSupply because the hair dryer solution was obviously lame..

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This is usually an indication that the power supply has failed. It is also possible that there is a short or failure on another board, and the powe supply is in the protect mode.

The set would require proper troubleshooting by an experieced TV tech who knows the type of set you have.

Jerry G.

Posted on Apr 24, 2008

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I have a similar problem and it happens every once in awhile. My tv would blink green.I turned it off right away and turn it back on. The tv will work but the same thing happens every once in awhile. But here is the good news. If it stops i will give it to my grandfather. He owns a TV repair shop and he will check it out for me. When i find an answer i will post asap.

Posted on Dec 05, 2008

  • powerlock May 15, 2014

    it was the capacitor. I replaced them and it worked. you just have to look to see if their blown out. They look fatter when bad.

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Same thing has happened to me! I go to turn on my TV and it makes a sort of clicking noise, then blinks and nothing happens. No sound, screen, anything....very odd

Posted on Sep 15, 2008

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I had a similar problems with a 47in. LG LCD TV of turning off and on, didn't pay no mind to it, just would turn it back on. i say had cause now it doesn't if turn on at all. i've only had it for 7 months, a tech. will be going out to check it today. i'll post what the results he gives me. just pay close attention to tv might be leading up to some bigger problems.

Posted on Nov 25, 2009

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Hi i just reset factory settting on my lg26lc55 then after on my tv nd green light flashing on picture there

Posted on Apr 18, 2013

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SOURCE: ilo 27" lcd tv

If your LCD has a defective power supply module will cause the following symptoms:
No Display and no Sound, Then Power indicate light changes from Green to Red.

Posted on May 20, 2008

  • 608 Answers

SOURCE: My LG 47" LCD TV

I had a similar problem with my 42 in Philips LCD HDTV.


Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.


Here are some options for you.


1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found online. I would definitely shop around though.


3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.


This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.


Hope this helps and if it does please rate it accordingly. Good luck.

Posted on Dec 19, 2010

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SOURCE: red blinking light when tv is turned off

if this is a 37lg30 i have brand new spare parts. the tv was never used it was dropped and the screen was damaged so i just took out the parts out. i was originally looking for some one that had a problem with there tv but a good screen like you but its easier to ship out the boards.

Posted on Jun 06, 2009

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This issue is related to a bad/failed power supply inside your TV.

Call LG to see if your TV is still in warranty. 800-243-0000

If not in warranty, the power supply is about $225.

Good luck. I do hope that I have helped you.

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