Question about Akai PT4298HD Rear Projection Television

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Seeing double image in three colors

Tv worked a couple of hours ago and now I turned it on and I'm seeing a double image with red, blue and green colors. I tried to adjust the convergence, but that was unsuccessful. Is this a problem that is fixable and if so, can I do it or do I need a technician?

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Re: 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

Posted on Sep 01, 2007

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projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

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....

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Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

TV set after fluid change



You can see some more examples and find a fix using this link on Fixya

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I have a Magnavox 51MP392H/17 Rear projection TV. about 2 months ago the color start to merge into each other and showing double. I would cut the TV off...wait a few minutes then turn it back on and the...

yes its repairable
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est 300 to 340 you mention only red and green though do you not have blue in your picture
id bet the blue is non exsistant and will need a blue liquid kit changed to correct that problem also

you might want to conatact a local servicer and give a model and ask them what they woud do both for then you can make a decision if you want to do it or not

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