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? 11:05
https://www.youtube.com/watch?v=tS4sIpdajVw
Aug 23, 2013 - Uploaded by ShopJimmy.com
Repair review of common LCD TV Problems and Repair Solutions ... input the tv is set to it begins making a high pitched whiningsound. .... I have a LG 47LN5750 that powers on, flashes a good picture for about 1/2 second, then goes dark. ... hi my samsung tvis not turning on is black. and I just replace the ...
LG 50PK540 plasma TV Repair power supply EAY60968801 Part 1-2 ... Sanyo DP42849 with high pitched squeal after replacing power supply. ... In my second daily fix video, I solve a mystery that was making me having to turn off my speakers before I went to be ... The flash is accompanied by an high pitched sound.
Back-light problem.Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis.If you wish to get some details; check the site linked here.Surf the site with patience.Pull up older posts.It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/
the transformer for the backlight is usually what fails on the elements especially if the logo comes up briefly then the screen goes out. I would check the transformers.
The power supply board have more than just two capacitors problems,could be anythings else like a diode,transistor or those transformers on the power suuply board,u have no trouble shooting skills or tv repair experience,will never figure it out.Tries websites like Shopjimmy.con,Ebay.com to buy a whole refurbish power suply board for the replacement.
turn tv on picture comes up 2to3 seconds later tv blacks out then stand by red light flashes 4 times in a row repeatedly..can not turn on or off when stand by light starts flashing but before tv blacks out you can turn tv on and off repeatedly and picture and sound work.You have to unplug power cord for 30 seconds after stand by light comes on to get tv to turn on.
We had the same problem with the 17" we bought in Aug. Sent it back for repair. Acer sent it back without fixing the problem. Started doing it again in Nov. This time I called a supervisor and they sent me a new monitor. Well yesterday it started doing the same thing. You can fix it temp buy unplugging it and holding down the on-off switch for 30 seconds. Please let me know if you have a better fix.
- could still turn off/on with remote or panel button
- unplugged to 'reset' but problem persists
same problem and mine was the controller board
The tv working 10minut and soudainly the screen become black and the sound work, and at power up tv displays Acer logo then goes to black
after few minutes of working the screen become black and the sound working.
at power up tv displays Acer logo then goes to black
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