Question about Protron PLTV-26 26 in. HD-Ready LCD Television

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51" Vivitek DLP noise

Hi...there is a constant hum on the set. It groans loudly always on startup but this seems to go away in time. It will shut down unexpectedly and the lights flash and then it will startup...always with an awful groan! It also is reluctant to startup at times..lights flash and then it will come on... but only when its good and ready!
Help!!!!!

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  • Paul Smith Dec 09, 2008

    One of the suggestions is to replace the optical module... are you referring to the color wheel, optical engine or is there a replaceable module I am not seeing?

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If the model number you provided is correct, you need to look at this ASAP:

http://ciscdb.sel.sony.com/perl/news-item.pl?news_id=206&mdl=KDF50WE655

Thankss

Posted on Dec 09, 2008

  • futureloginn
    futureloginn Dec 10, 2008

    if the model number you provided is correct, you need to look at this ASAP:
    http://ciscdb.sel.sony.com/perl/news-ite...

    Thankss


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It sounds like the colorwheel motor is bad, check the colorwheel and make sure its still good but im pretty sure its the motor going out

Posted on Dec 09, 2008

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Hello,

This would be your color wheel motor and the fan assembly. They should have self lubricating bearings, however if these bearings are failing you will get these kinds of noises.

I hope this helps,

Thank you

Shuttle83

http://www.electron-age-technologies-llc.com

Posted on Dec 09, 2008

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The fluorescent inside make humming sound naturally.
Like when you turn on a lamp, and some lamps make a low humming sound.
If your sound is unusual it indicates that you need to replace lamp and fan .

Posted on Dec 09, 2008

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If its DLP tv..

TV makes a humming noise.
Step 1: Power on the TV and wait for the picture to be displayed.
Step 2: Reset system and mute the TV.
Step 3: Can the noise still be heard?

  • No - Unit is operating correctly.
  • Yes - Proceed with Step 4.
Step 4: Adjust TV volume to normal listening level. Can the humming noise be heard over the audio 6~12 feet away from TV?
  • No - Unit is operating correctly.
  • Yes - Proceed with Step 5.
Step 5: Stand near the TV and listen if the humming is from lower center of TV?
  • No - Replace fans.
  • Yes - Replace optical module.
  • Unsure - Proceed with Step 6.
Step 6: If unsure of where the humming comes from, power off the TV and listen to the humming. Make sure noise is audible to confirm this step:
  • Humming stops 1-5 seconds after powering off TV - Replace optical module.
  • Humming stops 1-3 minutes after powering off TV - Replace fans.

Good luck...

Posted on Dec 09, 2008

  • Anand Kumar
    Anand Kumar Dec 10, 2008

    Its the color wheel in the tv...

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