Question about Akai PT4298HD Rear Projection Television

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Double vision w/ red & green tint

My akai tv is working however the picture has sort of a double vision with a red & green tint to it

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  • 767 Answers

This is a comon problem
There are two large convergance chip's
the are failing .Replaceing them will
corect the problem . The chip range
in cost from 16,00-30.00 .There cheap,
so dont let the shop over charge you
for parts when and if you decide to
repair it.

Posted on Jul 03, 2009

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Have a akai tv that's has a green or yellow tint


Hello
Check the picture tube base card for any loose solderings. Your TV lacks Blue colour putput. Check all the solder points on this board. Resolder all the susepected solder terminals [especially take care to blue output section], by applying a little more solder. Check the base connection solder terminals of the blue output transistor. It might be loose, or transistor is defective.

Mar 29, 2012 | Akai Televison & Video

2 Answers

Red color outline and double vision


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. 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, Zenith, and others. You can get a convergenece repair kit wiith 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 - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV2_bing.gif 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 here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 05, 2010 | Sony KP-51WS520 51" Rear Projection...

1 Answer

I can't seem to correct a tint problem. The tv turns on and the tint doesn't change. A friend says it could be a vidoe card?


Go to menue on controller, then Picture, then adjust Color and Tint to you taste. The color ajusts Blue and Green move left more blue move the slider right more green. The Tint controlls red. More red move right less left. Also chech Color temp setting.

Nov 08, 2009 | Akai PDP4225M 42 in. Plasma Television

1 Answer

Double Vision


The convergence ICs need to be replaced both of them at the same time they are STK392-040 you can get replacment ICs at the following link and they provide free instalation instructions with pictures so you can do the repair yourself.
Heres the link.
http://servicemanuals.vstore.ca/

Jun 29, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Mitsubishi Model # VS-50609


try to resolder the convergence amp ICs that may help if not the ICs may need to be replaced. Let me know if you need further assistance.

Jun 22, 2008 | Mitsubishi VS-50609 50" Rear Projection...

3 Answers

Too much green color


Problem solved. I tried playing DVD and the TV picture was fine. So I double-checked cable wires from cable box - one of the wires was loose (obviously it was the red color input). After tightening, the TV picture is good as new.

Mar 20, 2008 | Sony FWD-50PX1 50 in. HD-Ready Plasma...

1 Answer

Double- Vision


More than likely your akai has defective stk392-040 Convergence chips . it also may have open resistors generally 3.9 ohm flame proff. this board is attached to the top left looking from the back of the set it is screwed on by 1 screw black in the center . after installation this will probably half to be converged dinamically. which means you will half to get to the grid this is done by using the remote press mute 183 quicly to enter numbers on thew remote 2 to adjust red 4 to adjust blue horizonta 6 to adjustred vertical and 8 to adjust red vertical using center button to go up and down

Feb 20, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Akai


yep you need convergence amp replacment for your set..very common prob call experienced repair person for this job use original replacements....john

Jul 31, 2007 | Akai PT4298HD Rear Projection Television

1 Answer

Akai tv


have a good tv guy repace you convergence amp's john

Jul 31, 2007 | Akai PT4298HD Rear Projection Television

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