Facing TV Problems? Ask a TV Technician.
Hello, my name is ***** ***** I'll assist you. I need additional info to troubleshoot the issue.
- How old is the TV and how long it have had the problem?
- Does screen glow/ show backlight when turn On the TV?
- Have you tried to unplug TV power cord from wall outlet for 10 minutes to reset, replug back in and check?If not yet, can you try it now and reply back with the result?
Thanks for the info, only power supply board in TV can generate sharp screech sound due to failing inverter section that provides volts to backligt LEDs inside LCD panel. I would replace power supply board as first step to see if it helps to resolve the issue. Please click following link to view power supply board image and part number info that can be used to search/ google to get price and stock info to order it...
I'm not sure why the power board failed but it could happen when few LEDs inside panel went bad/ short and caused overload to power board output.
I trust my input will help you out. Please feel free to respond if you have any additional questions.A positive rating to answer would be greatly appreciated, please click on 5 star on this page then click submit/finish button so I can get credit on website for my work. Regards,Shahid.
Please search the board with the part number LG EAY62169901 to get various suppliers info, shopjimmy link was to view the board and to get part number info. I feel few bad LEDs inside panel causing the problem so check the screen for any faded/ dark areas with new power board, if screen has over all even light then all is OK and old board would had got bad regulator chip or devalued resistors etc that made it fail.
Yes, I'm afraid of it. It seems new power board will soon go out because of those bad/ shorted LEDs and I would recommend a new TV instead of spending money and time on this one.
In my opinion, there was one or two LEDs got shorted and caused first time screeching noise in power board then power board recovers it by increasing its volts supply then more LEDs got shorted that caused more load on power board then it failed.
I hope these info will help, please feel free to respond if you have any additional questions.
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