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

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High Squealing Sound

My RCA Big Screen TV Model # D52W25 with HDTV monitor creates a high squealing sound after watching for a few minutes. And the sound is too piercing that you can not stand it.

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There is a stand up coil about 1" tall and the dia of a nickel close to the HV transformer, the iron core glue comes loose over usage. This can be cured by replacing it or using a sealer/caulk and re-seal the coil. Hope this helps, it is not an expensive job for service.

Posted on Feb 13, 2009

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My tv makes 3 even high pitched squeals when i turn it on. about 1 second each, then powers off. No picture no sound. All imputs. What do you have for suggestions on what it could be.


One of most two common reason why your set will not come on, is because it has lost the high voltage, the first thing to check is your horizontal output transistor, to see if it is shorted, it will be located bay the flyback, mounted on a metal heat sink. That is what is causing a squealing noise.

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RCA HD52W59 makes a high pitch internal squeal sound


coil LL0037 resolder then with a glue gun glue top of coil and down.OR replace coil.

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NO PIC HIGH PITCH SQUEAL COMING FORM BACK BOTTEM PART OF TV?


Squealing sound means you have something shorted in high voltage area around FBT on Power/deflection board.UED has replacement boards & Misc Parts for these sets if in stock call them1- 800-648-6657

Dec 20, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Loud squealing noise first 5 minutes after tv is turned on


Sounds like the color wheel. It's the only moving part in most DLP's and the bearings can go bad. If it manages to get up to speed the picture may look normal. One temporary solution may be to let it run a few minutes, then turn the set off for 10 minutes, then turn back on. When my color wheel was going bad that would often quieten it down. For the rest of the day, try to leave the set on, especially if you're only going to be away from the TV for short periods. You can turn off your cable or satellite box but leave the set on and you won't have to go through the hassle of trying to quieten down the color wheel until the next cold start. Of course the best solution is to replace the color wheel which even with a rebuilt unit won't be cheap if your warranty is expired.

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my d52w19 chassis itc222 as posted most of the time wont turn on and the green light flashes three times every time it makes a small noise. sometimes it does turn on and you hear a little pop and the tv fires up.  latley there is a really high pitch noise that will slightly change pitch if you move the tv or put slight pressure on the top or botttom rear part of the chassis. thanks for the help as I have seen that this has been posted before without mention of the high pitch noise.

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