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Can bad color wheel cause lamp to not turn on

I started hearing a buzzing from the TV when I turned it off after a few seconds. It would only last for a second or two. Initial I thought it was a fan spinning down, but then I heard about the color wheel. Then last week a really loud buzzing started while I was watching the TV. I turned off the TV and turned it back on and the buzzing would go away. Then more recently when I turned on the set, I got sound but no picture. My question: Can this be due to the color wheel not spinning? Is there an interlock that will prevent the lamp from turning on if the color wheel is detected to not be spinning?

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Actually yes, the thing is that the color wheel is also part opf the light engine system and if it's not working, it will prevent you to see an image, you will need to replace it and it's most probable to fix your issue, of course since it's a Samsunt Tv, you need to identify the type of color wheel that you have, it could either be one with a gold bearing or one with a silver bearing, just identify which one is the one you have, and you'll be goo to go

Posted on Jul 24, 2009

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Posted on Jan 02, 2017

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My tv makes a buzzing or grinding sound when i first turn it on and stops after the lamp warms up. is this just my lamp starting to die?


You may have a bad color wheel if your TV is DLP based. If its a Samsung then you most likely have a failing color wheel. Lamps will not cause grinding or buzzing sounds.

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Highly likely that the sound was coming from the bearing in the color wheel assembly. When the bearing fails, the color wheel cannot spin at the correct speed, and because the speed is measured by the control board, the TV will shut down.

If you can handle a screwdriver - entire color wheel assembly can be replaced for about $100 and 30 minutes of your time.

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Loud sound would be coming from defective color wheel that is mounted i light engine, next to lamp housing. Replacement of color wheel is required expertise/ experience and professional will do that for you in correct and in safe manner.
Contact local tv repair shop to get color wheel replaced in tv.
Thanks.

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This tv have a colors wheel. The tv colors wheel is dead.The buzzing noise is the cause of the colors wheel is spinning of is axis and rubbing sides of the motor.Hire a tv tech. for the job.Colors wheel is hard to replaced,because have to take out many other machanical parts,even before can change the colors wheel it self.

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My samsung 42 inch hdtv is making a buzzing noise


First. The whirring or buzzing sound you hear is the Color Wheel and it needs to be replaced. Second, since I do not know when and if the original lamp has been replaced it is a good idea to replaced the lamp. The bad Color Wheel is the one causing the set to shut down.

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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

Jul 09, 2009 | Televison & Video

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All 3 leds blinking is a Lamp error. Pull the lamp and see if it is blown. If so, replace. This error can also be caused by many parts of the optical block = colorwheel, balast, or DMD board. If you hear a buzz sound when it tries to fire lamp then the lamp is bad. If not listen for the spinning high pitched squeel of the colorwheel coming up. If you hear this but no buzz from the ballast, you likely have a bad ballast. If you do not hear the color wheel, you have a bad color wheel or DMD board.

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Lamp light turns red


Yes this is the signal for a bad lamp. Other things can cause this. 1. Look at the new lamp. make sure it still looks good. not broken with little glass pieaces in it. 2. When you turn on the tv, put your ear to the lower back part of the tv near the middle. Listen for the start up of the color wheel (a low high pitch sound only at the start up of the motor). If this is good you will here a ticking sound only if the lamp dose not light.

Now with all this info. If the lamp lights (as seen from the back of the set) and goes out after a few seconds and you did not here the color wheel spin up, the color wheel is bad.

If you here the color wheel spin up and no ticking sound, the Ballast is bad.

The ballast part no. 939P978010

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