Question about Philips 27PT643R 27" TV

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My Philips 27pt643r 27" TV has a high-pitched whistle

It's worst when it's first turned on, but persists throughout it's operation. It makes a very high pitched whistle sound that can get quite annoying. Any help would be greatly appreciated!

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My Philips 27pt643r 27" TV has a high-pitched whistle? This trouble maybe power supply or inverter boards is defective.
first you can test the voltage of the multr,and then check which part is defective.From Wisiny.com can find those parts
if you have any question,please let us know email:service@wisiny.com.thanks,we sincerely hope we can help you!
you can also check this boards whether suit you:
1942LGR3P 715G1813 1 Philips ADTV1942LGR3P Power Supply Backlight Inverter

Posted on Feb 28, 2015

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This is the line lin coil needs replacing

Posted on Sep 04, 2009

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Posted on Jan 02, 2017

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