Question about SNK Magnavox 19MF338B/27 19 in. LCD TV

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High Pitch squeal everytime t.v. is turned on. 20min warm-up.

Every time we turn on the t.v. it makes an incredibly high-pitched squeal that won't stop unless we literally unplug it. It usually takes 4-5 attempts to have an actual picture come up and "work normal". Sometimes it takes up to 20mins to get it to work.

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  • Anonymous Mar 19, 2014

    No picture when switched on. Picture comes after 5 or 6 attempts

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Sounds like the switchmode power supply is varrying in frequency ..needs to be checked by qualified tech,,,

Posted on Apr 16, 2009

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