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Tv goes dark after 30 minutes - Televison & Video

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Well have you a remote, if so go to the settings (its probably a problem with the sleep) you should be able to remove sleep all together or extend the time on it.

Posted on May 23, 2011

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Posted on Jan 02, 2017

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What is wrong with Sharp Aquos LC-40C32U Picture


If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
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My ViewSonic N3252w screen goes dark after 30 - 45 minutes of viewing. I power it off for 15 - 30 minutes and it works again - but only for 30 - 45 minutes (again). This issue repeats over and over.


The backlight inverter is failing for your tv. You need a direct replacement part. You can find parts on ebay or shopjimmy.com and you can search my the model number of the tv. Once you get the part, allow your tv to be unpluged for 12 hours before beginning any work. This will allow charges to dissipate and allows for a safe work environment. Once you replace the part you will be good to go. Also, check the power supply for popped capacitors while you have the tv open. Replace any bad capacitors with the same uF value and HIGHER voltage value (EX: 1000uF 10v --> 1000uF 35v)



Thank you and please rate.

Apr 11, 2011 | ViewSonic Televison & Video

1 Answer

Approximately 2/3 of the screen is dark. this started about six months ago and is progressively becoming worse. when problem began the screen would recover to full brightness after it was on for 30...


Hi there...it is sounding like a backlight is going/has gone out...these can be proffesionally replacedat a repair shop...To self diagnose if it is the backlight take a flashlight and, with tv on and while on a tv channel and carefully form different angles look into the 'dark' part of the tv screen...if the/a backlight on a lcd tv/monitor goes out(even laptop screens) then u can still see a faint image with a flashlight(or without one with a good eye)....If you still see the (tv channel) image, then it is most likely a bad backlight......
I hope this helped you some, if it did(or not) please rate!...Thank you

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2 Answers

Screen goes dark after a few minutes of tv on


It has bad lcd inverter and Westinghouse don't sell the parts either.

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1 Answer

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You need to get this tv service asap.i beleive that the problem is in the inverter board or yb board.


good luck

caypianan@yahoo.com

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1 Answer

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is there any spar, u observed inside the tv when it do like this.

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HDTV picture problems


Does the picture just get dark or does the picture go out completely? Does it do this with both the cable and the DVD? Is the audio affected?

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