Question about Akai PDP4294 42 in. EDTV-Ready Plasma Television

1 Answer

Half screen lighter than other half

Hi, after watching the tv for 20 or so minutes half the screen goes lighter than the other half. So there is a line down the middle where half is darker than the other. Any ideas on the problem?

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  • skillz42 Aug 31, 2008

    I thought it might have something to do with the power supply, do 42 and above plasmas have two different power supplies for different parts of the screen?

  • Anonymous Nov 27, 2008

    Ya the TV PDP 4294 seems to overheat so I put a fan on it and it fixed it. It came back two week later and is staying with the line down the middle even with the fan.

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  • 85 Answers

Faulty display panel or faulty display driver

Posted on Aug 31, 2008

  • hiwatt Aug 31, 2008

    There is one power supply but it is divided into several circuits. You have line volts coming in AC then there are regulators to keep the various supply voltages steady for each circuit area. each manufacturer takes time to disign power supplys for their sets but no matter who makes them the theory is the same for all. I hope to help you but it very hard to try and explain something especially when I cannot be at the device haveing trouble. One word of caution for you be careful handleing your plasma GLASS is heavy have a friend help you move it some sets you can remove the back while it is still sitting on its base (stand) some have to be placed face town on a study bench or table use a blanket to protect the face of the set. Just be careful and try not to get so discouraged even as long as I have been in electronics repair I still get a little tight. Most repairs for your plasma will involve replacing entire circuit boards. Some manufacturers parts are realativly (cheap) in price some will make you cry.

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