Question about Akai PT4250A 42" HDTV

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Screen distorted and burning smell

My AKAI Selfocus BBE digital television all of a sudden started having visual issues each time it was turned on. The television is 3 years old. When turned on, there's a burning smell and the picture is distorted. One suggestion was that this was a convergence issue, but how does that incorporate the burning smell?

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  • Akai Master
  • 8,457 Answers

Those dead resistors that the cause,u are smelling burning plastics.Try website Tvrepairworld.com to buy a whole convergence board for the replacement.The Samsung/Akai are using the same convergence board.

Posted on Jun 06, 2010

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Posted on Jan 02, 2017

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2 Answers

Burning and fan type sound


That is probably the power section about to fail. The burning smell is going to be from overheating components. You will have to take it into either an akai repair depot or a local tv repair and have it looked at. Get an estimate first. The repair cost on this could be cheap if itis obvious and the repair gys are on the ball or it can be pricey if they just replace major parts (typical). Also have a good idea of what replacement cost is so you know if it is worth fixing.

Jul 20, 2010 | Akai LCT42Z6TA 42 in. LCD Television

1 Answer

Burning smell and picture is distorted.


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

May 19, 2010 | Akai PT4250A 42" HDTV

1 Answer

Convergence panasonic HDTV 1080i bbe hi definition


The most likely cause is shorted convergence chips and possibly a few pico fuses.

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
*White looking picture
*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

Apr 17, 2010 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Akai PT5499hd that has suddenly lost color alignment


The most likely cause is shorted convergence chips and possibly a few pico fuses.

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,Pioneer2_bing.gif 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
*White looking picture
*Halos around objects
*Red/Orange looking picture

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

Dec 23, 2009 | Akai PTH5498 54" Rear Projection...

1 Answer

I just replace convergence board on my akai tv and


There is a burnt capacitor somewhere in the unit. Look for any burnt or swelled up capacitors. You can also usually locate a bad cap if there is burn marks on the system board. Also test power supply with voltmmeter to make sure it is a constant volt reading.

Jul 11, 2009 | Akai PDP-42TD1 42 in. EDTV-Ready Plasma...

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.

49abec3.jpg
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

Digital tuner


Product Description
Akai is a company with a long history of innovation and leadership in the fields of audio and video consumer electronics. For the past decades, Akai has been a major factor in the electronics industry. From its early days of dominant marketshare in the reel-to-reel recording industry, to modern day state of the art home entertainment systems, Akai continues to be a leader in the consumer electronics industry.PRODUCT FEATURES:Console Model;Progressive Scan Converter;1080i HDTV monitor performance with add-on HDTV tuner;3D Y/C Digital Comb Filter;30-watt BBE stereo audio system;Dual HDTV component video inputs;Translucent on-screen display (OSD) system. its a add on for hdtv tuner on this model

Jan 16, 2009 | Akai PTH5498 54" Rear Projection...

1 Answer

Akai pt4299hd


replace your STKs big black Ics STK394-250 there is 2 of them thses are your convergence ics.Also ck resistors and pico fuses.

Jul 22, 2008 | Akai PT4799HD Rear Projection Television

1 Answer

AKAI FIX


My set had the same issue with the picture and burning smell. On my set, I just removed the cap and the set works great without it.

Aug 08, 2007 | Akai PT4799HD Rear Projection Television

1 Answer

Burning smell and distorted picture


One of the components in the horizonatl deflection circuit went bad like a capacitor,the price will depend on the actual part that went bad and your location,the service call in NY could be 300.00 but in pittsburgh might only be 150.00.I still belive is wort repairing.

Oct 18, 2006 | Akai PT4799HD Rear Projection Television

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