Question about Akai PT4799HD Rear Projection Television

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Where can i get a convergence chip for PT4799HD akai tv?

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I'm fairly certain that particular Akai model contains Samsung parts. You can contact Samsung at 1-800-726-7864 to check pricing and availability of the part you seek.

Posted on Jul 12, 2009

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I have an AKAI television set.Convergence chip for PT4799HD was on this website. Is this a reasonable solution on my set? The picture is "furry" and the automatic convergence does not seem to be functioning.

Posted on Aug 09, 2009

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1 Answer

Where can i get a akai pt4799hd replacement bulb


Tries website Tv repair World.com,Ebay.com to buy the bulb.

Mar 26, 2010 | Akai PT4799HD Rear Projection Television

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Where seeing 4 people on the tv and colors are pink.what would that be


Convergence is dead.U can buy a whole convergence board to replaced.Try Website Tv repair World.com to buy the AKAI convergence board.The Samsung/Akai use the same convergence board.

Feb 24, 2010 | Akai PT4799HD Rear Projection Television

1 Answer

Color distortion in an Akai ( Cheaper model Rear Projection tv) I


Ur convergence is dead.Try Tv repair World.com.
Buy a whole convergence board replaced it.

Jan 01, 2010 | Akai PT4799HD Rear Projection Television

2 Answers

TV went out and will not come back on. Power light shows red but no sound or picture. It's about 4-5 years old.


I have a akai tv, the tv went out but won't come back on. i'm still getting a red light but the tv just beep when I press the power button.

Sep 18, 2009 | Akai PT4799HD Rear Projection Television

1 Answer

Convergence. seeing three colors at once


Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • 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.
701cb04.jpg
77ea520.jpg
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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Apr 07, 2009 | Akai PT4799HD Rear Projection Television

1 Answer

Akai PT4799HD - Bluish and Distorted 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.

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 from the link below.

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 - TV may also make a chirping noise.
Here are some photos of convergence problems.

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f0add3d.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.

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 solution

93a1209.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you know what you are doing. If you have never done this before we would advise calling a shop or if you want to do it yourself get a complete kit with instructions and support from www.TvRepairKits.com

Mar 01, 2009 | Akai PT4799HD Rear Projection Television

1 Answer

Need akai pt4799hd setup code


Do NOT attempt to enter the service mode to align convergence if you cannot align the convergence with the user's menu. If the convergence cannot be corrected with the user's menu, it means that one of your convergence IC's has burned out and possibly burned out the fuse next to it. If you change any settings without first replacing the bad parts, you will only make things much worse. I believe that set is actually a Samsung, and has the 2 convergence IC's on their own board mounted above the small signal board. If you do not know how to identify and replace shorted convergence IC's, allow a qualified tech to handle it for you.

Sep 03, 2007 | Akai PT4799HD Rear Projection Television

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