Question about Akai PT4298HD Rear Projection Television

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Akai tv hello, I have a AKAI model pt4298hd the blue green and red lights in back work fine however the red bows giving a double picture kind of like looking at a 3d show on all channels, make sense?

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  • 317 Answers

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

Posted on Sep 12, 2007

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techman
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SOURCE: akai

Yes it does, makes a lot of sense. you have the typical convergence amp problem that plagues almost every projection set ever made. What you need to do, and only if you have experience working on solid state printed circuit board, is to locate the STK type amp IC's, order new ones along with heat sink compound, and unsolder the old IC's and reinstall the new IC's, but do not forget to put a good coating of heat sink compoud on the backs of the new IC's before you install them. Like I always say, if you have no printed circuit board experience, or do nor solder well, play it safe and call out a pro to assist you in this easy repair. Good Luck

Posted on Jul 31, 2007

  • 317 Answers

SOURCE: akai

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

Posted on Sep 12, 2007

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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

1 Answer

Akai


Yes it does, makes a lot of sense. you have the typical convergence amp problem that plagues almost every projection set ever made. What you need to do, and only if you have experience working on solid state printed circuit board, is to locate the STK type amp IC's, order new ones along with heat sink compound, and unsolder the old IC's and reinstall the new IC's, but do not forget to put a good coating of heat sink compoud on the backs of the new IC's before you install them. Like I always say, if you have no printed circuit board experience, or do nor solder well, play it safe and call out a pro to assist you in this easy repair. Good Luck

Jul 31, 2007 | Akai PT4298HD Rear Projection Television

1 Answer

54" Projection TV


Your green gun in our tv is misagligned/out of focus. Your tv uses red, green and blue guns that layer in different shades and mix to create the different colors. Your green is a little off so the colors aren't mixing right which explains the green haze and the shadows. A tv repair man can fix this problem pretty easily and it isnt expenisve.

Aug 28, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Akai PT4298hd


You may need the change the coolant in the blue tube. Convergence is when the picture will look 3D Let me know if you need more information.

Apr 25, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Double picture


Your convergence ICs need to be replaced. Its an easy job if you can solder. Let me know if you need any more info or a link to where you can order replacement ICs.

Apr 06, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Akai pt 4298hd tv


Obvious circuit problems. Take to pro/tech for check and repair

Nov 07, 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

Tv picture shaped like hour glass


The link you posted has been deleted, so I cannot see the picture you posted. If the sides bow in like an hourglass and the red, green and blue colors are still aligned then there is a horizontal width or pincussion problem, but if the sides bow in and the 3 colors have separated and are no longer anywhere near aligned then you have a convergence problem, both of which should be serviced by someone with experience in servicing projection TV's.

Jul 03, 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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