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LG tv powers on screen flashes goes black flashes on then goes black then shuts down

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  • Shaun Ketchen
    Shaun Ketchen May 18, 2017

    I feel I disconnect the t con board there's no picture but it doesn't power off

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  • LG Master
  • 75,797 Answers

I would just replace the TV, is the problem the Timing Control PCB? Maybe, if that doesn't fix it then you are committed and then the money starts going out and soon you realize you could have replaced it and avoided the whole mess. Your choice.

Posted on May 18, 2017

6 Suggested Answers

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Posted on Jan 02, 2017

likha
  • 790 Answers

SOURCE: Plasma TV

did you hear the sounds? or maybe you have defective power source in hot side..

Posted on Oct 02, 2007

tantong
  • 138 Answers

SOURCE: screen flashes black

Hi this is the way how to examine what's wrong with your LCD monitors. After you turned it on and the screen blacked out, you have to check that if you can see the image on the screen or not by shining a flashlight into the screen, not directly but find the best angle to the screen and take a look very closely. If you can see the icons or any image, there will be a minor problem. This is because of the lamps inside screen. Some of them were broken and it is very easy to replace. If you cannot see anything on the screen, there'll be some problems with inverter board. If you have soldering tool and want to fix it by yourself, check the caps first. It may cause this problem. Some caps might show leaking or burn spot on the board because of too high temp. If you don't have soldering tool, you better go get a technician to do so. Hope this help!! If anything I can help you with, feel free to let me know.
Thank you,

Posted on Mar 07, 2008

SOURCE: lg l1920 lcd monitor's screen flashes when turned on

Could be an inverter problem, if it powers on for a brief second and then flashes off then the inverter is at fault. Check for any Capacitors which have a yellowish substance at the top, they looks like round blue or black cans and if they look like they are buldging then they will need replacing.

hope this helps =]

Posted on Feb 13, 2009

  • 11 Answers

SOURCE: My LG Flatron L1717S wen I power up it flashes good for 2 sec

are you getting a check signal cable message? any on screen instructions?

try the cable, if it works on another monitor, then sorry to say but your monitor is fried

Posted on Sep 01, 2009

roety
  • 585 Answers

SOURCE: MAGNAVOX 32MF605W/17

Hi my name is Eric,
I hope I can help you with your issue ,
 You main a bad mainboard, a repairman will charge about $450 to replace it , use google to try and locate one yourself
 
 
If I have helped you with your issue please click accept.
If you have more questions you can still respond
I will reply asap
Thanks
Eric

Posted on Sep 26, 2009

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