Akai PT4298HD Rear Projection Television Logo

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Posted on Jan 08, 2009
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Thin red line down the middle of screen

Convergence problem, I replaced the whole board it fixed the colors now have a red line down the middle of screen and when you set convergence, '20 mins. latter it's messed up again (doesn't stay set) perfect focus doesn't seem to work. what I'am I doing wrong (fairly handy)

  • code-r-1 Jan 12, 2009

    Still have this stupid red line just left of the center hatch marks picture perfect gets 83%, is this not enough?? But all other problems are fixed,great advice,any other ideas in regards to the red line

  • code-r-1 Jan 13, 2009

    That worked but still leaves a the red line thanks alot for that information would it have to be perfect I can get 83%

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1 Answer

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  • Posted on Jan 12, 2009
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Enter muye 1 / 8 /3
it puts you into convergence mode and clears out all bad magic foces data.
then run perfect focus to save new data.

hope this helps
daniel

  • Anonymous Jan 13, 2009

    enter mute

    then press 1

    press 8

    press 3

    it puts you into convergence mode and clears out all bad magic foces data.
    then run perfect focus to save new data.

    sorry for miss spelling

    regards

    daniel.

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This is a very common failure on Projection sets. Its called a convergence problem.

You may have one or more of the following symptoms.
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3b59090.pngYou can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
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RED CONVERGENCE SCREEN PATTERN BOWING AND CAN'T ADJUST

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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,Pioneer 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
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*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
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