Question about RCA D52W20 52" Rear Projection HDTV-Ready Television

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Whining high-pitched noise when RCA D52W20 is on

I am trying to find out what the problem may be and how can I get it repaired

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Its a coil in power/deflection board and need to be experienced in order to fix this

Posted on Apr 03, 2008

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1 Answer

Making high pitch whine or squeeling


Check the color wheel and any fans running on the unit. The color wheels make a high pitch whin right before they quit as well as the cooling fans.

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THAT TV HAS WHAT IS CALLED A COLOR WHEEL WHICH SPINS AT VERY HIGH RPMS AND CAN MAKE HIGH PITCHED WHINING/GRINDING NOISES IF A FAN WAS BAD THE TV WOULD SHUTDOWN AND THE SOUND WOULD BE MORE DULL SOUNDING.

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52 in. rca high def. rear proj. making high pitch noise


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1 Answer

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job. Problems occur when a electrical/electronics device is turned on and turned off. Inrush voltage,
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1 Answer

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1 Answer

High pitched whine


Ok maybe this may help .... there is a coil LL08 I believe... somtimes it creates a high pitch whine like you describe.. its stands up on the deflection board..it basicaly a large coil of copper wire....you can take silcon and put on the coil...in effect damping the ocillations...hope that might help

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1 Answer

RCA 20


sounds like the Power Transformer to me,  usually accompanied by a high pitch (almost inaudiable whine) and  sparks arcing.

 

This needs a professional repair..

 

 

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