Question about Akai PT4298HD Rear Projection Television

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My screen is sagging from the top...

I see two lines at the top of the screen that are drooping down and the colors are off. don't know if its the convergence or not.

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Re: my screen is sagging from the top...

100% convergence ic's an related power supply if you need more help let me know around 250.00 the cost to repair or more depending on the tech. deflection board part# AA94-08574A

Posted on Jun 13, 2007

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The top left of the screen is drooping down and is green,red goes across where green is drooping from.

This is a common problem. Its called a convergence failure. You can get all the parts from


  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted

You can see some examples and find a fix here...

Apr 28, 2011 | Hitachi 46F500 46" Rear Projection...

2 Answers

I have a Mitsubishi 55"

This set has a convergence problem. You should only need to replace the IC. Part is STK393-110. It sits on the middle board behind the large heatsink. Use a heat transfer compound to ensure repair lasts. If you have no experience soldering (or unsoldering) please use a professional for the work. The traces are fragile and I have fixed many mistakes local DIYers have committed. Goodluck.

Jan 20, 2011 | Mitsubishi WS-55511 55" Rear Projection...

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Conversion-----the red lines are distorted so badly they won't move at all. I've managed to line the other lines up. The top left quadrant has drooped so badly that they will not adjust back. The bottom...

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony, Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit from the link below.

Common Symptoms include....
  • 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.
  • TV shuts off after powering on - TV may also make a chirping noise.
Here are some photos of convergence problems.


Here is a quick test....

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

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a solution


You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you know what you are doing. If you have never done this before we would advise calling a shop or if you want to do it yourself get a complete kit with instructions and support from

Feb 11, 2010 | JVC AV-56WP74 56" Rear Projection...

2 Answers

Screen at top has a sag look to it what couses this also the coler dosent match up

your convergances amps have failed not a bad job but suggest you have a tech take care of it

Nov 24, 2009 | Hitachi 53UWX10B 53" Rear Projection...

2 Answers

I have a RCA HDTV MOD.# R52WH73 with three color lines at the top of screen sagging downward in the center. Any ideas on the fix?

You can get the ITC222 convergence option missing repair kit from should repair that issue. The kit contains the parts and the CD with instructions.

Nov 07, 2009 | Projection Televisions

1 Answer

Color seperation and red drooping line

You have defective Convergence IC's. It's best to have a service company verify and do the repair if you wish. Normally runs about $250.00

Jul 14, 2009 | Zenith R45W46 45" Rear Projection...

1 Answer

Ghosting in red ,blue & green

Sounds like an allinment problem with the color projection you can allin yourself via small screws on color tubes in rear. but be careful as tv needs to be on to do it.

Jul 17, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

65 in.JVC bad picture

You may have a convergence problem that means, there may be convergence ic's bad or related components.
If you know something about tv's, try checking things out.
You can get a repair manual from websites to download.
If you do not normally fix tv's the best thing is to call a tv repair technician.

Feb 22, 2008 | JVC AV-65WP55 65" Rear Projection...

1 Answer

Color sag on mitsubishi ws-55909 projection tv

Adjust convergents for blue.This is done with your remote control. go into menu, setup, instructions will come up on screen, also in manual.

Feb 04, 2007 | Mitsubishi WS-55909 55" Rear Projection...

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