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Buzzing Pioneer 434

Discussion in 'Plasma TVs' started by jwramsay, Sep 12, 2004.

  1. jwramsay

    jwramsay
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    Just took delivery of my Pioneer PDP-434HDE Plasma courtesy of the John Lewis pricematch.

    Top picture, only snag is the background buzzing from the screen. This is best described as sounding like a neon light. It changes pitch as the picture goes from dark to light.

    I sit 4 feet away and it is really noticeable when the sound is turned down.

    I know the receiver box has a fan but I can barely notice this compared to the plasma's tingling buzzing noise.

    Am I alone in this or is this a feature of the Pioneer or all plasmas?

    I am considering phoning JL to ask them to send out an engineer to investigate.

    Apart from that, majorly impressed with this beast.
     
  2. Brogan

    Brogan
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    Hardly any buzzing from my 504.
    I have to put my ear right up to the top corner of the screen, towards the rear to hear anything at all.

    Presumably you have calibrated the screen or at least turned the brightness and contrast down?
    Typically the settings out of the box are way too high.
     
  3. loonatic

    loonatic
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    Can't speak for the 434 itself but in my experience ALL plasmas buzz...it's just how they are.

    My old 433HDE buzzed like mad and drove me nuts...as did the 3 loan screens I had one of which was a 503HDE.

    I have just sold my 50" series 6 panny and it also had a buzz but it was constant not like the Pioneer that as you say changes pitch/intensity the brighter the image on screen.

    The Hitachi's also seem to be bad at buzzing too.

    But...some people are far more prone to the noise than others...I can hear a dodgy dimmer swtich buzzing from about 10ft which has a similar buzz to the plasma.

    LCD's in m experience do not buzz...well at least Sony and Sharp models.

    Cheers, Lee
     
  4. Jimbo73

    Jimbo73
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    Do a search for "434" and "buzz" - you'll see it's about 50/50 as to whether or not other people's buzz.

    Mine does, and it is quite intrusive from a distance of about 4m from the screen.

    I'm wondering if wall mounting it might help...
     
  5. jwramsay

    jwramsay
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    My mate who works for an authorised Pioneer repair centre, and has seen loads of these just inspected it. Verdict : The board with the power supply needs replacing.

    Thanks to all who posted and I'll keep you updated as to whether JL can fix this problem.
     
  6. jwramsay

    jwramsay
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    JL are going to replace the whole lot this week! Due to everything having a serial number, they don't want to split things up. And they are going to install it, as it took me an hour to install the first time never mind repack the one that is to go back.

    And that does mean that they have more in stock as I asked this question.
     
  7. andypearce

    andypearce
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    You sit 4ft away from a 43" plasma screen!?!That's really close - the recommended viewing distance for a 43" screen is a minimum of 10ft away.
     
  8. jwramsay

    jwramsay
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    Only a temporary resting place until the suite arrives for my Home Cinema Room. Check my piccie out on the Plasmas for the Lads thread.
     

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