Question about Akai PDP4225M 42 in. Plasma Television

1 Answer

Akai 42 in Plasma

Once the TV is on for awhile , half the screen fades in an out. Don't know whats happening to it. Any answers?

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  • klaszop Dec 12, 2008

    Thanks so much for the insite. I an really lost when it comes to these new TV's. At least this gives me an idea of what to suggest to the repair place.

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This sounds like your flyback needs replaced on the main circut board! (if out of warranty it should not cost that much to fix!)
I hope I was of help!

Posted on Dec 12, 2008

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hi....Your tv picture is managed by several boards, the two specific ones are the ysus and the xsus. The Y controlls the horizontal pixelation and the X the verticle, if you are having horizontal problems then its the Ysus thats faulty, on this particular set, the Ysus board has two accompaning buffers that are particularly troublesome. I've had more than one of these sets in the shop recently with the same ailment.Sounds like your buffers are starting to go out. The screen is split horizontally by the two long skinny buffers attatched to the Y main, if the bottom one has one leg in the grave you'll be getting a partially black screen or no picture at all. The colored lines running through the screen are more typical of a failing buffer. Are you interested in taking this set apart and putting a couple hundred into fixing it?  When buffers go they usually take the Y main too. Worse case scenario you're gonna be out about $350 dollars to fix it yourself. Best case, a ribbon is loose on the bottom buffer and with a dismantle you'll be able to connect it again..

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You have just found out why the plasma sets are fading from the market.
Both of you may have a power supply problem. The PS in plasma TVs is more complex than in LCD sets and therefore more likely to fail.

Since Akai is so poor on product support, they may not even have parts since that set was made by Samsung who also doesn't want to hear anything about them (their site doesn't recognize the Akai model number), you may be out of luck.

In researching Akai, I find large number of folks who will not buy any Akai anythings again.
This kind of performance is unusual for a Japanese company.

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1 Answer

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You have just found out why the plasma sets are fading from the market.
I think you will find the replacement cost will make the set an uneconomical repair and you will then have the same thing happen again.

Since Akai is so poor on product support, they may not even have the actual part since that set was made by Samsung who also doesn't want to hear anything about them (their site doesn't recognize the Akai model number), you may be out of luck.
Sorry -

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Try putting a fan on the back of the tv to see if it is getting better. If it does then you probally have a board that is overheating. If that is the case then CAREFULLY !!! remove the back and place where you can turn on and safely access the open back NO TOUCHING STUFF !!! Mabey lay it face down on a glass table or lay it on a table with 25% hanging over the edge to see the screen. Then take a COLD blow dryer and blow it on the boards to find out which one makes it get better. If one does then it will probally be your problem board. Make extremely sure that is the one before removing it by blowing from all angles on the boards around it without air hitting the suposed problem board. Then try a little hot air to see if that starts the problem on that board so you can be sure. Of course check the surrounding and offending board several times to be sure before removing.

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Hello drifter,The design of the tv enables the auto search to detect any input signal you have selected. It could be TV (off air, video signals etc) so just switch on whatever inputs to the akai plasma befote you switch the Akai plasma on and let it do the work for you. just relax and watch the tv. recap 1. switch on the input eg video deck, DVD, VCD, or satellite dish. 2. switch on your AKAI PLASMA and 3. wait for the akai to search for your input signals. TRy this simple procedure and if it doesnt work just post back the message. The DON

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