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Question about JVC AV-56WP84 56" Rear Projection Television

2 Answers

Picture Problem , Sony Projection TV

Picture bow's in on the side or bow's in from top to bottom. On the outside of this rounding effect , you can see the color blue , or red . Any tips on what part/parts that need to be replaced

Posted by rd1ski on

  • 2 more comments 
  • rd1ski Oct 01, 2007

    Thank for the tip , this is a Sony projection KPR46EXR15 , I thought that was is my first message

  • shirlee7 May 06, 2008

    sony 46 inch kp46wt510

  • chrissy32820 Dec 07, 2008

    bows in the middle

  • ssg_johnsonc Dec 27, 2008

    SAMSUNG PCN5425RX/XAA Red color bows from top and picture has double vision

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2 Answers

Edward

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  • JVC Master
  • 3,459 Answers

Your TV most likely a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

Picture Problem , Sony Projection TV - 3dc9420.jpg
6Picture Problem , Sony Projection TV - 0dcec37.jpg class=
0dcec37.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chiPicture Problem , Sony Projection TV - 0667c5f.pngand should be replaced. This is a common problem.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Posted on May 22, 2009

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Vista Electronics

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  • Master
  • 1,694 Answers

Generally, a convergence issue==replace STK IC's. ( Look for largest heat sink in set ) Further help needed?==provide make,model.

Posted on Oct 01, 2007

  • Vista Electronics Oct 01, 2007

    Convergence PCB is up front,behind speaker grills/access panel.STK 4278L X 2.Also,solder
    any/all bad connects on convergence board.
    Check both 3.15 amp fuses.Re-install--usually,
    no further adjustments needed.
    To improve pix quality,remove rear cover--clean RGB lens caps w/soft cloth.

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Sony kp-53s35 bowed picture on top and bottom

Good day, scotty1980;
Scotty, welcome to 2008. Hold onto your wallet, the has a convergence problem. Which means that the TV's convergence IC's are more than likely bad. The average cost to repair is about $450.00. Unless you are electronically friendly, I would call an authorized service dealer for repair.
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http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
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http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/
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Problem with convergence

bad convergence ic's
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
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