Question about Hitachi 53UWX10B 53" Rear Projection Television

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Akai color alignment

I have a rear projection tv that the 3 colors dont match up on the screen. Its a crisp image but they just dont line up. Akai Model is PT4250AX/SMS Serial ACKQ3CEYA00183H.

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This is a convergence problem that can be as simple as poor solder connections on the pins of the convergence ICs or defective ICs. If you wish to attemp the repair yourself, please let me know and I'll look up the parts and provide additional details and instructions.

Dan

Posted on Feb 18, 2009

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Akai rear projection tv...picture is not deformed....however there are images (Ghost image) in separated colors...like 3d


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

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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

Jun 24, 2010 | Akai PT5598HD 55" Rear Projection...

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

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

Samsung HCN4727W Rear Projection TV, green screen, audio works


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,Akai2_bing.gif,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...

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

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

Jul 10, 2009 | Samsung HL-R4667W Rear Projection...

1 Answer

I have an AKAI TV...Model Code #PT4250AX/SMS - Rear Projection TV. The TV was being used and a pop sound was heard and then the tv was black (no audio, no video). Now when you turn on the power the red...


My recommendation is to call a local svc co. Since you heard a pop, it could be anywhere in the set. It requires trouble shooting to isolate where the problem is. I hope this is help-full for you.

Feb 27, 2009 | Akai PT4298HD Rear Projection Television

2 Answers

Akai 55


I used" Silerado 1st" solution. I have an Akai pt5598hdix/sms.
I had ghosting.Like 3 colors side by side.
Silerado said with TV off press "mute,1,8,2" then TV on.
I didn't see anything like a menu.He warned to write down any setting you saw before you change anything.But for me nothing came up. So as he said the next step try with TV "on" press "Mute,1,8,3" this is another set of adjustments for finer detail. I lined/overlapped all the lines up or down or side to side useing the channel and the volume buttons and then held the enter button down until the TV flashed 3 times.Then I shut it off and when I turned it back on It was perfect.
Thomas Fitzgibbon

Mar 23, 2008 | Akai PT5598HD 55" Rear Projection...

1 Answer

Akai PT42198HDX/SMS


Set could just be way out of adjustment or there is problem with video circuit

Jan 16, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

AKAI PT5598HD


Your set has what is know as "convergence problem" because of the bowed lines and ghost in different colors,is really not an easy solution,the set should have 3 amplifiers(one for each color)and they need to be replaced with an exact replacement,sometimes just by replacing them the aligment should be close but soemtimes you nned to get into the service menu to do some adjustments,the amps(IC's) are mounted on heat sinks and all 3 have the same part number on its face,they normally read STK--- ---,every set uses different amps,If you are familiar with tv service you have now a place to start working but if you are not too familiar be safe and call for help from a servicer.Let Us know if you need more information.

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

2 Answers

Remote control lost programing


this is embedded in the control chip of the remote and is rom..best to replace remote i personnaly have lots of luck repairing usually find cracked solder joints..remotes witstand lots of abuse but do break! john

Nov 07, 2006 | Akai PT4298HD Rear Projection Television

1 Answer

Red lines


The top of my screen is pink and the color kind of bows down. The images are kind of distorted. Thanks for any help.

Sep 28, 2006 | Akai PT5598HD 55" Rear Projection...

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