Question about Toshiba 42H81 42" Rear Projection Television

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Toshiba 42" hum

I have a Toshiba 42' DLP. Has loud hum . I was told it was likely the color wheel. Anybody know about this?

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First, it being a DLP that is likely... But your posting is under the header of an projection 42H81 and that is not a DLP... Can't help much beyond that without the model number...
Bill

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993

Posted on Oct 28, 2008

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Loud humming coming fromthr rear of Toshiba DLP 46HMX85. Humming is not connected to the volume control and sounds like a power supply transformer or a fan.Changes pitch momentarily when certian functions...


YOU are describing a color wheel, in this model it may or may not be available as a part; some of these sets it is only sold with the light engine.

See attached photo of a typical color wheel.

In DLP type sets the wheel turns at up to 12,000 rpm and if bearings in the tiny motor fail it sounds like a fan or even a grinding sound.

Let me know if you have questions.

SD TECH

sd_tech_33.jpg

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Our toshiba 42" DLP makes an incredibly loud fan noise sometimes. Sounds like it will blow up. Can this be fixed without costing a fortune or do we just need a new set


Hello.

I can Honestly say this is little information. and i will try to you to a web site that i think it will help you and probably you can fix it by your self.


http://www.fixyourdlp.com/forum/viewtopic.php?f=10&t=1254&p=4208#p4208

This is what i think is the problem.

id the sound is to loud i think its the Color Wheel maybe its broken or louse you need to check and see that you color wheel is not making the loud sound!

7f6ff09.jpg

Good Luck on fixing your TV

Mar 10, 2010 | Toshiba 56HMX195 52" HDTV DLP Projection...

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My Toshiba DLP makes a humming noise. Replaced the


Color Wheel. Call Encompass Parts 1-800-638-3328

Dec 30, 2009 | Televison & Video

1 Answer

Loud humming noise when you power on the toshiba


Good Day,
It sounds like you have Color Wheel That Going bad To verify disconnect cable Color Wheel ***'y. NO noise= bad part.

Good Luck, Big Irish.

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1 Answer

Have picture, but no color and loud humming sound


the color wheel needs replacement. You can get a replacement color wheel at www.tvrepairworld.com

Oct 17, 2009 | Samsung DLP HL-P4663W 46" Rear Projection...

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I have a 44 inch 44nhm84 DLP. When the TV is turned on, it makes a loud humming noise that goes down in intesity twice and then finally a lesser humming noise after the picture comes on. At first I thought...


This does sound like a color wheel. To my knowlege, Toshiba does not sell the Color Wheel seporately. In short, you have to replace the Opical Block. The cost of this is very exspensive and Toshiba may not sell it to you. You may have to go through a Toshiba Service facility to obtain it. Check prices of new LCD sets before investing the money.
Hope this helps,
Skyassoc

Jun 18, 2009 | Toshiba 44NHM84 44" TV

1 Answer

Loud humming noise and color is off


It does sound like the color wheel.If you can get your hands on a service manual it wouldn't be too hard. You have to remove light engine take off a couple of plastic pieces to get to the color wheel housing. 2 screws and 2 plugs to remove it.

Apr 27, 2009 | Televison & Video

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Toshiba 56HM195 56 in HD DLP Loud Buzzing and color distortion


If the sound, sounds more like a Hum with some vibration chances are the Cooling fan located behind the lamp is going bad, about $20 to repair, if its a high pitch hum most likely the Color Wheel and if thats the case about $30.
Good luck, my fan just went bad now seeing green dots everywhere, so debating on just junking it out or fixing it, with winter coming on might just breakdown and buy LCD and say the heck with DLP from now on.
Good luck to you..

Jan 27, 2008 | Toshiba 56HM195 56" Projection HDTV

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