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Akai PTH5498 coloors are off, I have found numerous TV"S with same problem as mine. Where can i get a complete power board also called convergence circuit board.

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Re: Akai PTH5498

Need complete Model and Service # 's off back of set to get
correct part # for PCB................................T.

Posted on Dec 26, 2007

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I have a pth5498 when u plug it in tv doesn't come on just makes clicking noise no tubes light up or anything just sound and front power light....

There could be many items that can cause that symptom. However I always assume convergence on any rear projection which can easily be checked by unplugging the convergence amp board and then plugging in the set and press power , if the set powers up turn it back off, and you will know the convergence ICs and associated resistors on that board have failed. Although its easier to replace the board unless you have good soldering skills. I am pasting a pic of the board which is suspended above the main chassis just mark the wires then unplug the set from the wall first, but then unplug the wires from that board and then try powering up the set.if you need further assistance , respond to this same post slinteriors_21.jpg

Aug 12, 2011 | Akai PTH5498 54" Rear Projection...

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Akai pth5498

the part number for the convergence board is aa95-00705a and you can order it at send me your email addy to and i will send you a wiring diagram....

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

1 Answer

For my pth5498 the green and red colors are not in alignment. I guess I have a convergence problem. I hit keys mute 1 8 2 and then turned the power back on and then a menu came up. I got out of it and have...

Any colors R,G,B out of alignment the convergence board are dead.The tv convergencce board must have it 2 STK convergencce ICS,and some or all it resistors be replaced to solved the convergence problems.The shop will cost u $300-350 for parts and labors.

Jun 18, 2010 | Akai PTH5498 54" Rear Projection...

1 Answer

Red and blue pic adjustments areso out of adjustment how can i get them back

Convergence board is dead.Go to Tv repair buy a new convergence board replaced the board will solved ur problems.Samsung/Akai use same convergence board.

Jan 22, 2010 | Akai PTH5498 54" Rear Projection...

2 Answers

Convergence board is bad

This is a common problem. Its called a convergence failure.

Problem #1) Convergence


  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted

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

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

1 Answer

PTH5498 Akai TV Concave on top and bottom

I just picked up the same tv for free, and have the same problem.
but mine also has shadows of blue and red everywhere. but yes, it is in fact a convergence problem.
you can buy the part to repair it yourself, but its not as easy as just plugging it in. you have to solder it, plus a resistor(if that blew too), and a fuse(again, if that blew as well). claims they can make a kit for any tv, i sent them an email to see if they can make one for the akai.
here is the part number for the convergence ic's STK392-040 if youd like to find them on your own.

Jul 03, 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

Akai PTH5498

A lot of people on this site have this problem, including me. Usually a problem in the convergence board, requiring fixing (not expensive, really) or replacement (about $80 DIY). In my case it was a coolant leak.

Mar 04, 2008 | Akai PTH5498 54" Rear Projection...

1 Answer

Red gun suddenly went wacko

Red Convergence IC bad.....small circuit board by itself up
above main boards..........replace both IC's for reliability...
STK392-040.........DO NOT USE GENERIC IC'S ! I use only
PANASONIC brand = no re-calls !!
Re-align when repair complete............T.

Jan 28, 2008 | Akai PTH5498 54" Rear Projection...

3 Answers

TV will not turn on...

Convergence board failure. $300 repair

Sep 19, 2007 | Akai PTH5498 54" Rear Projection...

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