Question about Sanyo DS31520 31" TV

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High pitch noise

A high pitch noise comes from the back of the television now and then. If I rap the top or side of the tv it stops momentarily. It seems to be happening more frequently.

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  • SAMTER Feb 27, 2008

    What would you expect the cost of replacing the flyback transformer to be?

  • SAMTER Feb 27, 2008

    This is a tube type TV

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The high pitch noise is most likely produce in the flyback transformer due to loose windings inside it, so when you move it or tap it on top; the high pitch noise stops momentarily.
The only way to fix it, will be replacing the defective component. I would suggest to take it to a repair center because you will be exposing yourself to high voltage and need to be be careful when working around it.
If the noise is being produce by the picture tube, is not worthy to fix the TV as the price for a new CRT is very high and you may as well buy another TV.

Posted on Feb 26, 2008

  • Jaime Hernandez Feb 27, 2008

    A reasonable cost for a repair is about 1/3 of what you paid for the TV. Depending how old is the TV, you may want to consider the cost of the repair because pictures tubes have a life expectancy of about 8 years.

    Hope this helps you to make a decision.

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Hello,

Sorry to hear about your issue, let me see if I can help.

What type of tv is this? tube or flat panel? If tube, have you recently moved it and shook it up a little?
If panel, are you using an hdmi hookup or just regular cable from a cable box?

Be sure that your hookups are on tightly and that your cables are not tangled as well especially hdmi cable. Let me know if any of this is helpful in solving your issue or if I can be of more assistance. Once you respond I can help more, just need more information..

Thanks,
d

Posted on Feb 26, 2008

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Posted on Jan 02, 2017

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