Question about Akai PTH5498 54" Rear Projection HDTV-Ready Television

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Red Ghost and bowing

My PTH5498 all of a sudden, showed a red ghost or shadow on the faces and letters on the screen. There was also some concave bowing toward the center of the screen by the ghosts. Is this the same convergence amps (stk392-040) at izc103/104 problem I've read about? I called a repair man and he is coming out tomorrow. He quoted an $85 service call which would be applied to the cost of repair if I choose to go ahead with repair (he estimated $170 to $300 for repair). Is there something I should first check with my remote ( a code mute 183 ) or just go ahead??? I am not familiar with this lingo.

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The STKs are common and if you have an experienced electronics tech around they can replace them for much less money but the tech must have advanced soldering and IC exchange experience.

The STK ics, two of them, can be purchased on line for around $20 to $40 each.

Partstore has two models available - one for around $40 and another for around $55.

The part number is STK392-110 and if you google you can find them for as little as $6/each but I don't recommend the cheap ones as they are not reliable.

It takes a good tech around 3 or 3 hours to take the old ones out and solder in the new ones. Also, it is likely one or two resistors are burnt and will need replacing as well.

Posted on Dec 18, 2007


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