Question about Akai PTH5498 54" Rear Projection HDTV-Ready Television

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The picture on the top half of the screen is distorted and wavy. (Akai 54" rear projection tv)

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Hi there,

This model TV has several know areas that will cause this problem. The hyper board and the line processor. The line processor is likely the main problem since the wave lines change when the screen is changed. Akai also has problems with the capacitors. Pay attention to the caps in the areas mentioned above and in the power supply. Heat is the number one enemy of electronics and these sets operate hot. This model of TV has over 3,000 parts which includes millions of transistors inside the integrated circuits. Over time the capacitors will change value, leak and become defective. Resistors will change value and burn. This will cause other components to become defective. This can have a domino effect and cause other parts to fail. Replacing one defective part may make the TV operate for a short time but the part will fail again since if the parts that caused the failure to begin with are not replaced. For a proper repair all the electronics must be diagnosed by someone with the correct electronic test equipment and the skills to use the test equipment.

Good Luck!!

Please do rate this solution.

Thanks

Posted on Jul 13, 2009

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I have a 56'' AKAI PT5492 projection screen i turn it on and have green bowed lines on top of screen


Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs.

To get fixed either call in a local TV repair company or goto sites such as www.TvRepairKits.com to get a repair kit with instructions.

Oct 15, 2010 | Akai PT5492S 54" Rear Projection...

1 Answer

Red green wavy color on top of picture with distorted faces and bottom of picture seems o.k.


Ur convergence is dead.The Convergence board must repair or replaced.Samsung/Akai use the same convergence board.Try website Tv repair world.com.Buy the whole board replaced it the best.

Jan 15, 2010 | Akai PT5598HD 55" 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

Wavy picture at bottom half of screen looks like two different colors, top half convergence looks good bottom half of pictute looksbad . Can it be vertical coil on two piture tubes not being drivendue to...


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

Oct 26, 2009 | Pioneer SD-P50A5-K 50" Rear Projection...

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 is bending at the top and bottom and looks 3d


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 TV 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

Dec 15, 2008 | Samsung PCN5425R 54" Rear Projection...

1 Answer

Akai hdtv picture distorted


Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs. To get fixed either call in a local TV repair company or goto sites such as Tv Repair Kits to get a repair kit with instructions. Here is there link.

http://www.tvrepairkits.com/xcart/home.php?partner=papa1dude

They have put together complete kits for most models that include the parts, step by step photo instructions, repair assistance, etc.

Oct 29, 2008 | Akai PTH5498 54" Rear Projection...

1 Answer

Red and green wavy lines


If the distortion that you see can be described as somewhat of a 3-D picture, the problem is teh convergence circuit and this can be fixed easily. Also, if you can solder, you can fix this yourself. If you wish to do this, please update this and I'll provide you with some instructions.

Dan

Sep 12, 2008 | Akai PT5492S 54" Rear Projection...

4 Answers

Pitcture is Wavy


Sounds like the tuner is going.

Dec 05, 2007 | Akai PT4799HD Rear Projection Television

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