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JVC AV-56WP84 56 in. Rear Projection Television
Problem for JVC AV-56WP84 56 in. Rear Projection Television

Picture Problem , Sony Projection TV




By rd1ski on Oct 01, 2007

" "
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
Comments:

Oct 01, 2007

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

Same Problem

Dec 27, 2008

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

Dec 07, 2008

-   bows in the middle-   chrissy32820

May 06, 2008

-   sony 46 inch kp46wt510-   shirlee7

Best Solution

posted on Oct 01, 2007
Helpful)

Terryfic

Rank: Guru  JVC Expert
Rating: 87%, 1703 votes
Generally, a convergence issue==replace STK
IC's. ( Look for largest heat sink in set )
Further help needed?==provide make,model.
Comments:

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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Solution #2

posted on May 22, 2009
Very Helpful)

Ecollier2012

Rank: Guru 
Rating: 93%, 541 votes
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.




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 chips are bad and should be replaced. This is a common problem.

SOLUTION

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.
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