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Sharp LC50BU30U LCD-LED TV with no picture. In a dark room you can see menu screen. Im getting 56dcv at both LED pins and 86dcv at Vout pins. Sound like power board or just damaged/dim led strips?

Posted by Vinny I on

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5 Related Answers

Anonymous

  • 3 Answers

SOURCE: No picture and no power LED

Hello. I have the exact same tv. and the same thing happened to me! What i did was buy a expensive Surge Protector and now it works! I hope this info is useful!

Posted on Apr 20, 2008

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Anonymous

  • 4 Answers

SOURCE: plasma tv has no picture but green led is on

Try unplugging the TV for a few minutes (discharges the ballast/ps) then plug in and attempt to power on. I have the 42P Vizio over two years old and ran into the same problem a few times. First thought was a power supply issue, but the unplugging trick worked. Good luck.

Posted on Apr 17, 2009

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SOURCE: No Power - Viewsonic N3252w LCD TV

you go to a service centre near your area who repear it

Posted on Sep 08, 2009

satavlad

Alex Zoubkov

  • 405 Answers

SOURCE: Sharp AQUOS LC-46D85U green LEDs blinking, no picture, no sound

Sharp warranty is the way to go.

Posted on Oct 25, 2009

Anonymous

  • 255 Answers

SOURCE: Power Button wire to mother board power led power

There are may motherboards, but most have writing on them as to what is suppose to plug where. For example, for the power switch, the lettering might be "Pwr" or "Power" or "Pwr sw". The pins are usually together and should fit the plug on the end of the wire.

Posted on Nov 25, 2009

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Without seeing the dark cycle myself it is difficult to guess what. I only can think of something hit the screen (ball?) or perhaps someone bumped into the screen?
If the bump was minor, it could become lesser.
Perhaps you should ask a technician to look, or take a picture from the screen, one when switched on and one switched off, but close to where the dark circle is and take the pictures to a tech.

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My sharp tv lc-20b9u-sm there is a dark circle on screen when there is picture or antenna off


Can you include a picture of the screen here; Johson? If so, it will be more helpful to provide a solution to this problem. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/
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