Question about RCA P52930BL 52" Rear Projection Television

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Turning on tv

I'm getting 3 short clicks when i try to turn on my set, also i hear a hum/buzz in the rear (note) tv never turns on

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Re: turning on tv

RCA's are known for bad Horizontal output transistors, Flybacks and high voltage splitters going bad on these models. That hum/buzz is the powersupply trying to turn on.

Posted on Sep 15, 2007

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What may cause a high pitch hum.even when muted or volume turned down?

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Its so high pitched that some people can barely hear it, but I guess I have sensitive hearing. ... Anyway, this seems to be a fairly common issue and it is caused by either the ... You're probably hearing a transformer humming.

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Wont turn on ,bulb ok what next

Hi,do you hear any strange noises? If you hear clicking or like wanting to turn on it could be the board that powers the lamp it's called the ballast.Here's the instructions to replace it : Any buzzing,humming,or high pitch sounds? If you do it could be an issue with the color wheel.The color wheel is a rotating disc that has a gamma of colors it spins at high rpms.The light of the lamp goes through it to create the colors on your tv.When it starts to go bad you will get color distortion ,black and white picture and sometimes you will hear humming noises.

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I have a samsung hl-r6178w, it suddenly turned off & the 3 lights in the front started blinking & it would not turn back on. i replaced the lamp now & still nothing, what can i do?

In regards to your issue, I got a question for you: when your tv2.gif turns on or tries to turn on, do you or can you hear a humming, buzzing or rapid click noise coming out of the tv? if you say yes this could be an issue with the ballast and most likely needs to be replaced as soon as possible the definition of a ballast and how it works is this: A ballast is an electrical component used with a fluorescent bulb (or mercury vapor lamp or arc lamp) to conduct electricity at each end of the tube. It supplies the initial electricity to the bulb that creates light, and then it regulates the amount of electricity flowing through the bulb so that it emits the right amount of light
You can go to DM the have this parts and you can get a good price,

please keep us posted

good luck

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I had the black & white dots on my 46" HLS4676S..Replaced the DMD chip..Plugged it in and the indicator lights then said I had a bad bulb...Installed a new bulb and the same thing happened. Turns...

Make sure you have firmly seated the new Lamp. The next step is to go to the rear of the set and put your ear next to the Lamp Door while turning "ON" the tv with your tv remote.
You should hear a short buzzing sound. That is the Ballast "Exciter" firing up to light the Lamp. If you do not hear this buzzing then you probably have a bad Ballast. Ballast part# is BP47-00037A

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1 Answer

Samsung HLN507WX lamp not coming on.

The Ballast is the next logical step but more often the Color Wheel has gone bad. Try this first. Make sure that the Lamp Door has been reinstalled and the screw has been tightened.
Next while you are at the back of the set listen for a short buzzing sound while you turn ON the set with the remote or have another person turn it on. If you hear a short buzzing sound then your Ballast is ok. The reason the lamp does not turn on is because if the Color Wheel does not spin up then the Digital bd will not let the set turn on. Color Wheel part# is BP96-00250A. Ballast part# is BP47-00008A

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1 Answer

TV makes humming noise, lamp light is blinking, does not turn on

Your color wheel needs to be changed. Mine just did the same thing. I changed mine, and the buzzing sound went away, however now my picture washes out with light or yellow colors. The darks look green and purple also.

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You are hearing the spark gap mounted on the lamp ballast board. If you can hear that sound, that means everything in the lamp driver circuit is working except the lamp!

Get a new lamp.


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short in tv or uno who$$$$$$$$$$$$$$$$$$$$$$$we luv it

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NO - - signal did nothing to the set... Sounds like a shorted HOT (horizontal output transistor) and the feedback your hearing (chirp) is on the horz. transformer as it tries repeatedly to startup... Don't allow it to do that for too long...

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