Question about Akai PT4298HD Rear Projection Television

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54" Projection TV

I have an AKAI 54" TV model #PTH5498. THe picture show a green glow in the shadows. The overall picture is hazey green. What could cause this to happen? Any assistance would be greatly appreciated.

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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.

Posted on Oct 20, 2008

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AKAI model PTH5498 turned it on in morning and it worked fine, then went to kitchen then heard a pop then a buzzing noise tv had no picture


Short on the power and deflection boards---with set unplugged take a careful look inside for burnt or blackened parts etc.

May 17, 2012 | Akai PTH5498 54" Rear Projection...

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My akaipth5498 projection tv shows a dark picture, even after adjusting colors. it looks like a bootleg movie.


If you unplug the set and look with the back cover removed you will find 3 large black round lens inside---light source (red,green,blue) for your picture--clean them with a lens cloth or a paper towel with glass cleaner sprayed on the towel.

Should be done about 1 time a year.

Apr 26, 2012 | Akai PTH5498 54" Rear Projection...

1 Answer

Akai (PTH5498) 54" rear projection TV with red and green ghosting and large curve in the picture at the top and bottom of the screen. Unable to fix using manual convergence. Thinking it must be the...


Hello:

Yes is is your convergence IC's. One has gone bad, but consider replacing both of them because if one has gone bad then the other is not far behind. They are located on the middle board of your set. They are mounted on a large heatsink, the part # should be STK-392-040. Replace these and your set will work fine again.

Nov 15, 2009 | Akai PTH5498 54" Rear Projection...

1 Answer

Green bulb does not burn at all, can it be changed


This is a CRT (or picture tube) projection TV . and if the green CRT won't come on it doesn't mean the crt is bad. The red or ble CRT could be put in the place of the green one to confirm if the tube is bad . It is more likely that the voltages feeding the green crt (middle CRT) are bad or missing. In either case it takes a bit of troubleshooting and disassembly to confirm. A CRT costs between $200-$500.

Sep 28, 2009 | Akai PTH5498 54" Rear Projection...

1 Answer

I have red and green shadow on top and bottom of the screen.


Ur Convergence board is dead or deffective with the IC chip.

Aug 17, 2009 | Akai PTH5498 54" Rear Projection...

1 Answer

Convergence adjustment


HELLO . it sound like you need to replace the convergence board or just the IC'S ON THE BOARD. IT WOULD BE CHEPER THAN THE HOLE BOARD. "GOOD LUCK"

Jul 27, 2008 | Akai PTH5498 54" Rear Projection...

1 Answer

Black line at the top of tv


MUTE 1 8 2
or
MUTE 1 8 3

Look for vertical adjustment
Be careful, no factory reset if you screw up
Write down old value before adjusting

Dec 20, 2007 | Akai PTH5498 54" Rear Projection...

1 Answer

Red & green lines


Sounds like you have hardware failure in the convergence circuit. Some combination of the IC's, fuses, and/or resistors has failed. Repair cost is $250-$400 parts & labor

Dec 02, 2007 | Akai PTH5498 54" Rear Projection...

2 Answers

AKAI 1080i HDTV 42"


· http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
· http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Aug 27, 2007 | Akai PTH5498 54" Rear Projection...

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