Question about Sony KP-51HW40 51" Rear Projection Television

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Why is there sound with no picture, or black screen?

LED flashes 4 times

Posted by Anonymous on

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4 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

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Hi there,
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Posted on Jan 02, 2017

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Chris Stutzman

  • 38 Answers

SOURCE: Television won't turn on

If its a DLP tv chances are the bulb went out, double check with the manufacturer before getting as they are not cheap, around the $250 range.

Posted on Oct 26, 2007

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tvtek

Duke

  • 1284 Answers

SOURCE: i get a red screen

In most cases on these models the red crt is shorted and causes the set to go into a shutdown mode and flash the timer light 7 times. The part number for the red crt is 8-733-664-25 but is no longer available.

Posted on Nov 11, 2009

SOURCE: black screen but get sound. picture flashes every

This sounds like a power supply issue. TVs operate on DC current and therefore must have a power supply board to invert AC house current to DC as well as regulate the DC current supplied. Heat is created by this process and therefore certain components on power supply boards are prone to failure due to repeated overheating. I would suspect capacitors on the power supply board are failing so they are only able to store enough power to allow the video board to work every 30 seconds and then it shuts off again. You can replace the whole board but I have repaired these before for a few dollars and some soldering. 

Posted on Nov 29, 2009

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