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

Hitatchi 42pd8700 turning itself on


You have main board issues, there is a 3.2 volt regulator on your TV that gives issues and will make the set turn on at random times, replace the main board and it should fix it, or you can order the part for under a buck from China and replace it yourself if you have soldering skills

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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

Akai pt4298hd 42 inch projection tv has red and green haze.part number stk392-040 were replaced 2 years ago.that fixed the problems.the symptons are the same.are these chips easy to acces ?


Yes they are But CK 2 resistors 2.7ohms in front of ICs if they are Bad they can cause same Problem to order new ICs $9.50 each Call Mats Electronics
1-800-628-1118

Dec 20, 2009 | Akai PT4298HD Rear Projection Television

1 Answer

Double vision w/ red & green tint


This is a comon problem
There are two large convergance chip's
the are failing .Replaceing them will
corect the problem . The chip range
in cost from 16,00-30.00 .There cheap,
so dont let the shop over charge you
for parts when and if you decide to
repair it.

Jul 03, 2009 | Akai PT4298HD Rear Projection Television

2 Answers

Green box keeps popping up in upper right corner


You should be watching your dvd's on an input and not on tv analog 3. Every time the tv "senses" a signal change in the audio that screen will pop up. Connect the DVD player to the tv by using either the red, white and yellow (composite) connections or using the green, blue, red, white and red (component). Once you are on an actual input that box will stop popping up.

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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

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

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