Question about Akai PT4298HD Rear Projection Television

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Akai PT4298HD green convergence problem

I recieved this unit from my daughter and I tried to adjust the convergence but the green is so distorted that the red or blue could never be brought into alignment with it.

Thanks

Doug D

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  • Datall1 Jan 06, 2008

    the blue in my convergence is outta wack. When I try to fix in my convergence menu the blue does not adjust, but the red will adjust..






















  • Doug Dulany Jan 10, 2008

    The fix that was posted was spot on. I ordered the parts from electronix.com and recieved them in 4 days. De-soldered the old ones out and soldered in the new ones, adjusted the convergence and all is well. THANKS!



    My part #'s are



    STK392-040





    Cost me 25 bucks shipping and all.

    Great tip!

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Http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Posted on Jan 01, 2008

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1 Answer

My akai pt4298hd is out of zoom and


akai is a samsung tv. you have a defective convergence board. suggest local service center. sorry

Nov 14, 2009 | Akai PT4298HD Rear Projection Television

1 Answer

MY TV IS SHOWING DOUBLES


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,Akai2_bing.gif,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link 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

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 12, 2009 | Akai PT4298HD Rear Projection Television

1 Answer

Red, Green convergence lines are wavy


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


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 more information and a DIY convergenece repair kit with instructions from the link below.

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

*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

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Sep 16, 2009 | Akai PT4298HD Rear Projection Television

1 Answer

Picture distorted and double vision


adjust the convergence..........push mute 1 8 3.....and it will take you into it. pnce in 2 will change the adjust mode, and 7 8 9 change color options

Dec 22, 2008 | Akai PT4298HD Rear Projection Television

2 Answers

PT4298HD Double image


BINGO thats exactly what i get paid to do same price 285.00

Nov 30, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

DISTORTED PICTURE


Projection sets have two very common problems.

The first common problem is convergence


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 more information and a DIY convergenece repair kit with instructions from the link below.

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

*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

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Nov 02, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Convergence problem: Green won't adjust


You will need to replace both STK392-040 ICs you can get replacements at the following link with free instalation instructions
http://servicemanuals.vstore.ca/

Jun 03, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Green Shadowing Around Images On Akai PT4398HD


your convergence amp's are defective this can usually be repaired for a few bills. easy fix for a qualified repair person...john

Aug 31, 2007 | Akai PT4298HD Rear Projection Television

1 Answer

Hourglass shaped red


I need to see a picture of the TV set. send a photo to techman32k@yahoo.com

Jun 05, 2007 | Akai PT4298HD Rear Projection Television

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