Question about Sharp LC-52D43U 52 in. LCD HDTV

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52" SHARP LCD getting a snowy picture after 5 to 10 minutes

My 52" SHARP LCD TV gets a snowy image after it is on for around 10 minutes. If I switch the input from TV to DVD then to computer I get the same effect so I think it is not the cable. I am thinking it is a cold solder joint on a part inside the TV but witch one? When I first got the TV the snow would show up but then it went away. For 4 months the TV was fine but now the snow is back. When I tap the back a little the snow will flicker. Any ideas what part this might be? I am also looking for a service manual so I can fix the problem myself.

Posted by on

  • Jacko Feb 21, 2008




    These are the pictures of the snow.

  • Jacko Oct 18, 2008

    Sharp will not fix this problem because it was bought at Costco and I am not the original owner. Luck I am a bit of a tech and I have tracked the problem down. I put a fan on the inverter board and the problem went away. I will open the protective






    Normal
    0





    shield soon and track down the part that is over
    heating then glue on a heat sink using thermal grease. If there is anyone out
    there with advise it would be much appreciated. Thanks for any support!


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I HAVE THE SOLUTION!!!! My 52" was doing the same thing. It would work and then picture will go to snow and no inputs worked, the remote didn't even work! I would have to power everything down (Reciever, PS3, etc.) then it would work but no telling how long. Even touching the TV where the buttons are made it go to snow!! THIS IS WHAT YOU DO. Take the back cover off. Where the side buttons are, there is a board in there and it is touching the metal frame. Take something like a credit card and cut it enough so that it will not be sticking out, get some electrical tape and anchor the card to the metal frame so it will not fall out of place. You're basically protecting the board from touching the frame!! Put the back side back on and screw in place and your all set. My TV has been working perfectly ever since.

Posted on Jun 24, 2013

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Main Board problem. Call sharp or local sharp authorized service center to fix this problem.

Posted on Mar 15, 2008

  • Mark Hudson Jun 24, 2013

    I HAVE THE SOLUTION!!!! My 52" was doing the same thing. It would work and then picture will go to snow and no inputs worked, the remote didn't even work! I would have to power everything down (Reciever, PS3, etc.) then it would work but no telling how long. Even touching the TV where the buttons are made it go to snow!! THIS IS WHAT YOU DO. Take the back cover off. Where the side buttons are, there is a board in there and it is touching the metal frame. Take something like a credit card and cut it enough so that it will not be sticking out, get some electrical tape and anchor the card to the metal frame so it will not fall out of place. You're basically protecting the board from touching the frame!! Put the back side back on and screw in place and your all set. My TV has been working perfectly ever since.

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These sets are notorious for bad inverter boards and bad video processor boards.Sharp is well aware of the problem,and will fix the units if you push the issue.They have fixed these ynits out of warranty with a smile.This is a issue with defective parts not connections

Posted on Mar 05, 2008

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Snowey on scrreen


Hi there,

I've been repairing TV's for over 15 years and I would say either a bad Tcon's or main board issue. Theirs no need to replace capacitors these days, you can get the main board from $40-60.
Have you tried using different devices on the unit? If your getting a snowy picture on a satellite receiver, check with your provider for troubleshooting guide their unit. Or let me know the provider and I can lead in you right direction.

Thanks,
Jason

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jason_70466cb634a57543

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