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High pitched whine/sometimes TV won't turn on

I have a RCA P52820BL. There's a high pitched whine noise coming from TV and sometimes the TV just won't turn on.

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The power supply on this model will whine when it is shorted or overloaded - the set would have to be brought in to determine exact cause.

Posted on Oct 23, 2009

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Posted on Jan 02, 2017

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2 Answers

Whining noise on 2002 chevy tracker, comes and goes


Could be your alternator or a bad idler pulley. Is the transmission good? It may be the tranny or your differential whining.

Feb 18, 2013 | 2002 Chevrolet Tracker

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A noise had been gradually increasing from a grinding sound to a high-pitched whine. COntinues until the screen is completely off. Sounds like a fan motor may be out of lubrication.


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.

Dec 17, 2010 | RCA Scenium HDLP61W151 61 in. HD-Ready...

1 Answer

Loud whinning, high pitch noise coming from TV when turned on.


The color wheel is likely bad and needs to be replaced.
Check this link it is for a samsung TV but the same principals apply
http://www.jangro.com/electronics/samsung-dlp-replace-color-wheel/

Oct 17, 2009 | RCA R52WM24 52" HDTV Projection Television

1 Answer

WHINING SOUND


More likely it is the color wheel this set uses---it is located inside the optical engine---part number for it:

267888This part is no longer available from RCA but is available on several sites on the internet (google the part number)

The wheel will when going bad sometimes make a fan like noise or even a high pitched whine.

Check out the sites on the net that sell this for price and decide if you want to attempt to replace it or if you have to have a shop do it for you.

Let me know if you have any questions or need advice.

REGARDS, SD TECH

Oct 05, 2009 | Televison & Video

1 Answer

RCA HD61LPW42 - no picture


I haven't worked on an RCA DLP but have on Samsung DLP, based on your description it sounds like the color wheel is bad. Take the back off and turn on TV make sure its not a fan making the noise ,but most likely its the "wheel" it is inside the light engine probably right next to where the lamp is plugged in. If the whine comes from this area definitely the wheel.

Apr 26, 2009 | RCA HD61LPW42 61" Rear Projection HDTV

1 Answer

RCA F32650 production May 2003. Was working fine. Turned it on the next day, got no picture and a high pitched whining noise.  Please let me know what I should do to fix it.


If it weren't for the high pitch whining noise. I would say it probably is an internal fuse inside the chasis. It is rated at 1.5 to 2.0 amps. With the whining noise it sounds like a trouble shooting bench
job. Problems occur when a electrical/electronics device is turned on and turned off. Inrush voltage,
when it is turned on, can go up to three times more than normal. This also happens at turn off. Solid state components usually fail at this time. I don't feel that this is a problem that can be fixed in the home.---BBB

Jan 25, 2009 | RCA F32650 32" TV

1 Answer

Sometimes screams a high pitched noise when turned on


the high pitch noise is from the HV. arcing acrss each other.
( the screen comes up at a pop).
I suggest get a better one. ( sorry! no domastic brand).

Oct 27, 2008 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

RECOR COLOR TV dead high pitch whining noise


you have a short in the horizontal ckt,look for diodes,horizontal output it might be damage or a bad cap, if not the fly-back transformer is gone.

good luck


caypianan@yahoo.com

Oct 20, 2008 | RCA F32650 32" TV

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

Mar 27, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

4 Answers

Loud humming or high pitch buzzing noise coming from my rca dlp tv 50 inch


I have a very high pitched sound and when I move the tv it will stop for a second or two and then start again. The sound sometimes stops all together. But very high pitch sound.

Aug 08, 2007 | RCA HDLP50W151 50" Rear Projection HDTV

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