Question about Polaroid FLM-3734B 37 in. LCD HDTV

2 Answers

High pitched noise

When the TV is turned on a high pitch noise is heard. After about 3 minutes it stops. If you turn on the direct TV receiver at the same time the noise is louder especially if it is on an HD channel. Sometimes it will even effect the picture if you turn them on at the same time. The TV is about 2 years old. The direct TV people were out and said it was not their receiver causing the problem.

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  • 6 more comments 
  • travis484 Oct 03, 2008

    high pitched noise all the time. Louder on HD channels. Internal speakers go in and out.

  • rytheguy Oct 07, 2008

    A high pitched noise that no longer goes away after 3 or 4 minutes and it is a sound to loud and painful to listen to when it is on HD TV

  • stev2695 Oct 07, 2008

    This just starting happening to us after 1.5 years of owning the tv. The tv itself is great and we are very pleased overall.

    How do I fix the "power supply" problem?


  • jewelbingo Oct 10, 2008

    My tv is not even 1 year old and continues to have hih pitch noise

  • hotbleek Dec 04, 2008

    When the TV is turned on a high pitch noise is heard. After about 3 minutes it stops. If you turn on the direct TV receiver at the same time the noise is louder especially if it is on an HD channel. Sometimes it will even effect the picture if you turn them on at the same time

  • wayne2153 Dec 15, 2008

    i had a guy in Chicago i contacted and fixed the problem for a flat rate of $200.00 his e-mail add. is wayne 2153@wowway.com

  • Lyn_Edlin Dec 17, 2008

    I have the high pitched noise when I turn on the sound from my Bose system. It goes away after a few minutes... if i wait a few minutes before turning on the Bose I don't have the high pitched noise.

  • crmstl Dec 29, 2008

    almost two yrs old and the high pitch sound has started when turned on. lasts a few min and goes away. how long does it have to live?

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2 Answers

So what is the best solution to fix this? Buy a new power supply

Posted on Oct 24, 2008

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  • Master
  • 2,270 Answers

The power supply is starting to fail on your LCD. The noise you hear is because the circuit is trying to provide the proper power to the rest of the circuitry and is forcing itself.
The noise does increase if you tune to an HD channel because of more demand for power for a brighter picture.
Let me know if you need further assistance.

Posted on Sep 18, 2008

  • Jaime Hernandez Dec 15, 2008

    I can fix any power supply issue for under $90.00 flat rate.

    If you need further info, write an email to jah2mil@hotmail.com

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