Question about Akai PT4799HD Rear Projection Television

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I have a 47'' Akai projection TV (PT4700HD) that does not focus anymore. Can I order a part (if so where?) or is there a simple solution. It only focuses up and down but not side to side.

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  • Akai Master
  • 8,457 Answers

Ur Convergence board is dead,must replaced,Try Tv repair World.com can buy the whole board to replaced.

Posted on Jan 12, 2010

  • Chi Chu Jan 12, 2010

    Samsung/Akai use same board cost about $190 including shipping.

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1 Answer

There is an arc of varios colors at bottom 1/2 of screen


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.
You can get a repair kit with parts and instructions from www.TvRepairKits.com

Sep 23, 2010 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Need to know how to fix tv can you call me 801 528 9886 for my tv akai 47" projection television


Im sorry but I am unable to contact you and would like to help you with your problem . Could you plese tell me what kind of problem are you having?

Aug 12, 2010 | Akai PT4799HD Rear Projection Television

1 Answer

Convergence


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.

42d3683.jpg

7859b01.jpg

e87380c.jpg
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

69189a5.pngCONVERGENCE SOLUTION

You 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

Aug 12, 2010 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Where can i get a replacement screen protector for my akai tv 47 inch rear projection


Not replace able,beacuse the DLP screen cost the same as a new not including labors.Tv not worth it to just replaced the screen.

Jan 12, 2010 | Akai PT4799HD Rear Projection Television

1 Answer

Been a while forgot what color but one color won't convergence


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.

42d3683.jpg

7859b01.jpg

e87380c.jpg
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

69189a5.pngCONVERGENCE SOLUTION

You 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

Dec 29, 2009 | Panasonic PT-47WX42 47" Rear Projection...

1 Answer

Tv out of focus


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.

42d3683.jpg

7859b01.jpg

e87380c.jpg
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

69189a5.pngCONVERGENCE SOLUTION

You 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

Aug 03, 2009 | Akai PT4298HD Rear Projection Television

1 Answer

Akai TV hookup to Panasonic DVD/CD Player


I'm going to assume that you can watch TV. on this set. In order for you to be able to watch another input, you'll have to select the proper feed on the TV...accordianman

Jan 16, 2008 | Panasonic PT-47WX49 47" Rear Projection...

4 Answers

Akai PT4298HD Rear Projection Television Problem


My AKAI 42 rear projection self focus set has blue shadows on everything and too much red, I cant seem to adjust it and self focus does not help?

Nov 03, 2007 | Akai PT4298HD Rear Projection Television

1 Answer

AKAI 54" rear projection TV


The convergence sensors either need to be re-initilized or one of them is bad. The service menus needs to be acsessed to re-initilize the sensors.

Apr 08, 2007 | Akai PT5492S 54" Rear Projection...

1 Answer

Actually...it's a Akai PT5299HD


I HAVE A AKAI PT5299HD TV AND WHEN I PUT ON THE AUTO FOCUS THE TV KEEPS TRYING TO FOCUS ENDLESSLY BUT DOES'NT FOCUS. IS THERE A WAY TO MANUALLY FOCUS THIS TV-MY WRITING ON THE SCREEN IS BLURRY?

Jul 31, 2006 | Akai PT5598HD 55" Rear Projection...

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