Question about Akai PT4298HD Rear Projection Television

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Top half of screen

The top half of the screen the pictures have a blue shadow . the bottom half is perfect.?????????????

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  • jhaniqua Dec 31, 2007

    I have the same problem with my Akai 42in tv. I only had it for 4 years, and my tv screen have blue shadow. I don't know if it's worth keeping the tv or fixing it.



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Blue STK392-040 Convergence IC bad = replace both with
first quality parts = NO generics,they don't hold up. I USE
PANASONIC with great success................T.

Posted on Dec 14, 2007


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Related Questions:

1 Answer

After a half hour of operation, the picture begins to shadow.

These sets have several common problems listed below.

Problem #1) Convergence


  • Screen Looks Distorted/3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking screen
  • White looking sceen
  • Halos around objects
  • Red/Orange looking

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


Mar 07, 2010 | Hitachi 50UX57B 50" Rear Projection...

1 Answer

Model 42mf231d/17 42" plasma

If the loss of picture is either on top half or bottom half of screen. there are y buffer boards that go from top to bottom on left side of screen when looking at back that control those sections. when there is loss of half of picture then buffer associated with that area would be at fault and would need to be replaced. when i see a degrading symptom such as loss of picture on top half or bottom half leading to no picture issue normally you would check heat syncs on y sustain board and if not heating up after a few minutes of being turned on would recommend replacing y main and both y upper and lower y buffer boards as they complete a circuit

Jun 04, 2008 | Philips Magnavox 27MS343S 27" TV

1 Answer

RCA Projection TV model #p61926

The convergence circuit is your problem and most times with this model the convergence power supply bd. is the problem.

Feb 11, 2008 | RCA P46921 46" Rear Projection Television

2 Answers


your having convergence circuit problems, you`ll need to change the convergence IC`s and any burnt resistors in the convergence circuit, if you have questions e-mail me back, good luck, BMW Rider

Jan 03, 2008 | Toshiba 53HX71 53" Rear Projection...

1 Answer

Panasonic- 47wx42f

the convergence ic's are at fault need replacing,call a service shop and ask for estimate to repair .should be under $ 300.

Dec 09, 2007 | Panasonic PT-47WX42 47" Rear Projection...

1 Answer

Blue shadow

Nov 25, 2007 | Toshiba 53AX61 53" Rear Projection...

3 Answers

Left side of television just started having a shadowing problem?

I have the same problem and was told by a technician that I need to replace the light engine. Probably around $ 700.00.

Oct 15, 2007 | Samsung HL-R6167W 61" HDTV

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