Question about Akai PT5598HD 55" Rear Projection HDTV-Ready Television

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AKAI PT5598HD The TV has a ghost image of different colors. There is also a couple of bowed lines on top of the screen. The middle of the screen is perfectly focused but as you move sideways (both directions) you start to see double images. I tried auto focus, manual focus and all other adjustments on the menu but without any success.

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Your set has what is know as "convergence problem" because of the bowed lines and ghost in different colors,is really not an easy solution,the set should have 3 amplifiers(one for each color)and they need to be replaced with an exact replacement,sometimes just by replacing them the aligment should be close but soemtimes you nned to get into the service menu to do some adjustments,the amps(IC's) are mounted on heat sinks and all 3 have the same part number on its face,they normally read STK--- ---,every set uses different amps,If you are familiar with tv service you have now a place to start working but if you are not too familiar be safe and call for help from a servicer.Let Us know if you need more information.

Posted on Oct 31, 2006

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Akai rear projection tv...picture is not deformed....however there are images (Ghost image) in separated 3d

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.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

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. Power light will blink. 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. And you should be able to get the grid straight.

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 fix


You can see some more examples and find a fix using this link on Fixya

Jun 24, 2010 | Akai PT5598HD 55" Rear Projection...

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AKAI PT5598HDI Colors out of line and picture is bowed in on bottom and top. Adjust the convergence manually. It's a pain and takes alot of patience. The diagram for the remote buttons helps a lot. If it won't adjust you'll have to replace a part inside the tv. Good luck! Hopefully it'll adjust.

Jun 14, 2009 | Akai PT5598HD 55" Rear Projection...

1 Answer

Replaced Convergence Board picture still bowed

did you replace the actual convergence ic's or just a small board ? these ic's usually begin with the letters stk392-????. they are about 2 inches high and 3 inches with about 18 pins sticking out the bottom. replace both of them and do the adjustments with mute 183 and you will be good.

May 26, 2009 | Akai PT5598HD 55" Rear Projection...

1 Answer

Watching TV and top 1/3 screen ghosted by colors

on this type of tv each gun is controled by hor.and ver. chip together. it is on the board that controls the convergence of the tv. some manufactors have recalls on problems like this. i dont know if this one does but it may. you can check with mitsub. i do know that this part is about 250.00

Jan 02, 2009 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Replaced Convergence Board picture still bowed

Today may be your lucky day. Approach this procedure with extreme caution and take your time. Sometimes when you replace that board you have to do a full digital convergence alignment. With tv off, push mute,1,8,3,power. Tv will come on in service mode. Certain buttons can now screw up the set in a major way, do not guess. press 7 to adj. red, 8 for green, or 9 for blue. Then look for the highlighted "x" intersection. Use directional buttons to adj. while careful to watch screen. Vol+ and - or ch+ and - make moves, mute moves cursor. If alignments move up, down, left, and right continue until all intersections are aligned. Turn power off to start over. When done press add/del on remote to save settings. That should fixya.

May 30, 2008 | Akai PT5598HD 55" Rear Projection...

2 Answers

Akai 55

I used" Silerado 1st" solution. I have an Akai pt5598hdix/sms.
I had ghosting.Like 3 colors side by side.
Silerado said with TV off press "mute,1,8,2" then TV on.
I didn't see anything like a menu.He warned to write down any setting you saw before you change anything.But for me nothing came up. So as he said the next step try with TV "on" press "Mute,1,8,3" this is another set of adjustments for finer detail. I lined/overlapped all the lines up or down or side to side useing the channel and the volume buttons and then held the enter button down until the TV flashed 3 times.Then I shut it off and when I turned it back on It was perfect.
Thomas Fitzgibbon

Mar 23, 2008 | Akai PT5598HD 55" Rear Projection...

1 Answer

Convergence Problem

I'm not a 100% positive this would fix your TV, but I found the convergence board on for about $80. Hope this helps.

Nov 16, 2007 | Akai PT5598HD 55" Rear Projection...

1 Answer

Convergence problem

Part # STK392-040 X 2 Do not use generic-they won't hold up.
I use Panasonic brand with no recalls------wholesale cost about
30.00 each. Always replace both at same time = more efficient.
After replacement, alignment may be needed = let me know.

Please rate this solution...................T.

Nov 12, 2007 | Akai PT5598HD 55" Rear Projection...

1 Answer

AKAI PT5598HD ghost image the red is offset

Replace STK392-040 IC's with name brand only. No generics.
I use Panasonic brand with no recalls.....Let me know if you
need more help.......................T.

Please rate this solution...........thanks.

Nov 11, 2007 | Akai PT5598HD 55" Rear Projection...

1 Answer

Red lines

The top of my screen is pink and the color kind of bows down. The images are kind of distorted. Thanks for any help.

Sep 28, 2006 | Akai PT5598HD 55" Rear Projection...

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