Question about Akai PT4298HD Rear Projection Television

2 Answers

Seeing red and green colors on screen

When i turn on my tv (42" pt4298hd) i see a red and green display around the channel display. i also see double on the on the screen. what can i do to fix this problem? is it something i can adjust myself or turn to a professional? i love them tv never had a problem till now. any ideas would be great.

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  • stp92803 Oct 18, 2007

    what is oem and ic's. terminology i dont understand?help me with those please.

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Use OEM or better quality IC's or repair won't hold up.

I use Panasonic with no re-calls.Of course,they are more expensive...T.

Posted on Oct 18, 2007

  • Vista Electronics Oct 18, 2007

    OEM==Original equipment manufacturer. In your case, Akai==



    made by Samsung. So,you can use Akai,Samsung,Panasonic,



    etc. Integrated Circuits (IC's) part # STK392-040,check # on part.



    Do not use cheap generic IC's,they will fail within days or weeks at best.

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Your tv is having convergence problems if you can't adjust it out with the customer controls you  probably will have to have the convergence circuit repaired witch should cost about $300

Posted on Oct 17, 2007

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1 Answer

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MY SONTY WEGA TRINITRON HAS A PURPLE HUE AT THE TOP OF THE SCREEN. ALSO THE CHANNEL DISPLAY WHICH IS NORMALLY GREEN ON COLOR IS NOW A RED COLOR


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This kind of problem occurs if tv screen got hit by some thing that damage internally and its irreparable, second possible cause is magnetic field nearby screen, please check any speaker or some thing that has magnet inside around tv, remove it from tv to fix purple hue at top of screen.
Unplug tv from AC wall socket for 20-25 minutes, replug back in and turn it On, this will demagnetize screen to cure the problem.

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1 Answer

The screen shows a double print in red


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

You can see more examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 24, 2010 | Akai PT4298HD Rear Projection Television

1 Answer

Picture has ''double vision'' with red.


This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted
  • TV shutdown - does not display video
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Feb 20, 2010 | Televison & Video

1 Answer

Double image - not covergence


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Nov 21, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Seeing double image in three colors


Its a convergence problem for sure ,,,if you cant move the red or blue (green is stationary) then your problem lies on the convervence module.. requiring ....mostly new output ICs like STKs your going to need a tech, for convergence is a common problem with rear projectors and requires patience and a expert to get it back just right. good luck

Sep 01, 2007 | Akai PT4298HD Rear Projection Television

1 Answer

Akai


yep you need convergence amp replacment for your set..very common prob call experienced repair person for this job use original replacements....john

Jul 31, 2007 | Akai PT4298HD Rear Projection Television

1 Answer

Akai tv


have a good tv guy repace you convergence amp's john

Jul 31, 2007 | Akai PT4298HD Rear Projection Television

1 Answer

Hourglass shaped red


I need to see a picture of the TV set. send a photo to techman32k@yahoo.com

Jun 05, 2007 | Akai PT4298HD Rear Projection Television

1 Answer

My tv


If the colors are red,blue,and green, then look for you convergence controls in the menu or off remote. If problem is more intense, then the convergence amps maybe needing soldering or replacing.

Apr 30, 2007 | Akai PT4298HD Rear Projection Television

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