Question about Maxent MX-42XM11 Television

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Maxent 42" Plasma TV takes 3 - 5 minutes to sync after turning on

This began about 8 months ago, when I turn on the TV for the first 3-5 minutes I can only hear the audio and the screen is dark gray or black. After about 3-5 minutes, the picture begins to flash on and off until picture finally syncs up and we can then begin to watch TV normally. If I turn off the TV and then turn it back on a few seconds later it works as expected. However, if I let it set for any length of time and the unit cools, it will go through the warm up and flashing process until synced.

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  • roosterjm2k2 Dec 01, 2008

    Same problem here, though it seems to be getting worse...

    It seems that as time goes, it takes longer and longer to load up, and even when it's good, it will flicker an inch or two of a bar across the bottom when the picture has a lot of white in it... then after a few hours of being on it seems to work great...

    With what little info I have on electronics (building HAM radios, etc)... It seems to me that a capacitor is blown, and takes a while for it to get up to charge to keep the power clean... Most TVs have a safety for this (as it can damage the internals) but it seems that this one doesn't. If you or anyone else has found a solution (or know if a repair shop can fix) please post here. I don't want to pay a table fee for something that can't be fixed.

  • jwold74 Dec 07, 2008

    I have the same problem. I've scanning the web for solutions, but haven't an answer yet. When I do, I'll post it here.

  • Anonymous Dec 16, 2008

    same problem with mine, it takes about 15 mins to warm up and after it does it flickers just a few times now and again at first. but now its to the point that it flickers so much i cant watch tv any more!!! I tried maxent but they have not answered. HELP!!!!!



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I had the same issue....thankfully, I had purchased an extended warranty from Best Buy...I had been in a panic, because I NEVER thought I would pay a grand for a tv, but I LOVE it...anyway.....I had the "Geek Squad" come to look at the tv....the tech took 30 secs....there is a problem with your Y-SUS (Y-sustain board) will need to be replaced...and...the tech called another tech, and he advised that the Z-SUS be replaced as well (apparently he had to go back to the same home after a Y-SUS replacement to change out a failed Z-SuS).....retail on Y-SUS is about $300...ebay has them for less than half that, if you think you can do it yourself...keep in mind that "Maxent" is a Zenith/LG product, so finding parts might be a challenge if you base it upon Maxent....hope this helps!!

Posted on Mar 14, 2009

  • Jack Diem Dec 15, 2010

    I bought a used Y-SUS board and replaced, but it did not fix the problem, now I have a used Y-SUS board for sale on ebay.... Next idea?



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