Question about Akai PTH5498 54" Rear Projection HDTV-Ready Television

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Picture and menu are the same. Aligned on right and left but everything sags in the middle.

I am trying to help my kids by seeing if we could fix this TV. We have called multiple TV repair places and they won't even come out and look at it when we tell them the brand and model number. It was working fine and then one day just crapped out. The picture and menu look like your seeing it trough one of the wavy mirrors that they have at the circus. I think this is convergence, but not sure. I have struggled thru the menu to get manual convergence up on the screen, but none of the arrow buttons seem to respond when I press them. I thought that I could manually line the crosses back up. Please help.

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Re: Picture and menu are the same. Aligned on right and...

Your going to have to replace the convergence IC's(two). Its a dangerous job if you have no training with tv sets. Please try to find a tech who will assist you in this repair.

Posted on Aug 24, 2006

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Hi, Screen says (cable stretched). No picture. Lines start from both upper corners and then sag in the middle? All three bulbs are on. Sound works butis all ststic. Thanks Steve

If it looks 3D or warped it sounds like your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from and do the repair yourself. Its a fairly easy DIY fix.

Aug 26, 2011 | Mitsubishi WS-65909 65" Rear Projection...

1 Answer

The screen seems to have two of the same image, green and red.

The fix is to replace the two Convergence IC's( STK392-110's) with STK392-150's. They are located to the right side of the chassis and mounted to large heat sinks. Be also on the look out for some burnt resisters and or discolored resistors that failed becuase of the IC's failing. These would be located just to the left of the heat sinks. If they are burnt or severly discolored, you will need to replace them with the exact valued resistors. In this high current circuit it is a must.
I hope this helps,

Jan 07, 2010 | Hitachi 60FX32B 60" Rear Projection...

1 Answer

I purchased a tv repair kit and replaced the convergence ic chips to fix my convergence problem. put everything back together and now, no picture. I tried magic focus and it works great, the colors are...

As per statement, "the magic focus works great, the colors are bright and aligned" it means the tubes are working need feed a signal to see the picture...the tv video goes muted without signal

Dec 29, 2009 | Hitachi 60SDX88B 60" Rear Projection...

1 Answer

RCA R52WH74 Picture is sagging, looks 3d, and double picture

Go to menu then setup look for convergence if you do not see convergence then you have A open FUSE It will be on right side of FBT flyback transfomer there is 3 of them in a roll they are small brown rectrangler looking caps but ARE FUSES it will be the one in the middle. Replace it and you have a FIXYA.

Feb 19, 2009 | RCA R52WH73 Projection Television

1 Answer

Mitsubishi 1080, Model #WS-B55

I need one for all universal codes for mitsubishi.

Jan 09, 2009 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

After replacing the convergence the three colors are still not aligned

there should be a menu button on the tv itself go to picture setting and reset all three colors to the middle. if that doesn't work then you'll need a new regulator for the convergance which is about 25-50 dollars

Oct 22, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Focus problem, see Green and Red misalignment;

this could be caused by the loss of the power to the converge circuit or the failure of the converge chips-stk-xxx-xxx if the problem pops in and out it's a connection problem.

Oct 09, 2008 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Blue convergence problem

The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the 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,Pioneer2_bing.gif Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.png

Sep 14, 2008 | Mitsubishi WS48511 48" Rear Projection...

2 Answers

Almost fixed!

see my last post to you regarding the converegence resistors

Jun 15, 2008 | Panasonic PT-53WX53 53" Rear Projection...

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