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47" led TV black screen full sound no picture

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Check and replace its back-light inverter board. If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts.

Posted on Jan 02, 2014

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Posted on Jan 02, 2017

Shuttle83
  • 1139 Answers

SOURCE: black screen

This denotes a power supply issue. I would venture to say that it is the part of the supply that controls the plasma ignitor if this is a plasma TV or if this is an LCD screen it is called the back-light and inverter circuit. The power supply board would be the chief culprit in this case.

I hope this helps,

Thank you,

Shuttle83

Posted on Aug 21, 2008

  • 1 Answer

SOURCE: TV will not turn on/black screen/picture/green LED is red/blinkin

I had the same problem for my TV which was model number: 42PF9631D/37 and I went to get the software update at http://www.p4c.philips.com. Type in your model number, then click on the right model. Then click on software & drivers in the left column. Then download the correct software update to a flash drive. The flash drive must be completely empty except for this file. Then unplug your TV, and plug the flash drive into the USB port. Plug your tv back in, and the software update will upload. It fixed my TV instantly.

Posted on Jan 09, 2009

  • 1 Answer

SOURCE: power led blinks but no picture or sound

Had the same problem myself. Took some doing but I managed to find a service bulletin that I downloaded. The problem is with the siene module and all you need to do is unplug connector JP63A from the main board and your TV will work again.
Take the back off the TV (there are a lot of screws) and look on the left hand side of the main circuit board that is mounted in the center of the TV. You will see a small white connector that is labelled JP63A, simply unplug it. Plug the TV back in and let it reboot. That's it, should be able to watch immediately.

Posted on Mar 15, 2009

  • 92 Answers

SOURCE: vizio 47" lcd no picture no sound has power

this could be one of two problem. first, check if you have back light. If you do then the problem is with the M/B. Second, if you don't have back light then the inverter is bad and needs to be replace.

Posted on May 20, 2009

  • 53 Answers

SOURCE: bottom half of screen goes black

This is because full pixels of your TV is not getting invoked at the beginning .If you are able to view the picture as normal after 1 or 2 minutes, its fine.Else you need to call to service center and get this problem fixed.

Posted on Aug 08, 2009

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