I've seen some other posts related to a Toshiba TV "humming". Some say it's a fan, others say it's the color wheel. One is about $300 with labor (fan), the other is about $800 plus labor (color wheel), because they have to replace the whole light engine, not just the color wheel part.
I think this is totally rediculas for a TV that could be bought today for about $1000 or so. Is there a way to ask Toshiba for some assistance?
I've had the TV for about 30 months, so if I bought the extended warranty, I'd still be covered. But should I really pay $400 for extended warranty for a TV costing $1800? If the issue costs about $400 to fix, then I'm even. So if it's the fan, then I'll just pay it and *******. If it's the color wheel, I think that's terrible flaw in a product or service.
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Re: Toshiba TV humming
It's really your call on the extended warranty - obviously I don't opt for one on any of my home electronics but I have taken out a policy or two on appliances. (I don't repair them)...
Like most averages something may never happen to the unit. That's how the warranty company makes their profit. But if something does then you have that piece of mind knowing that you're covered... (As a footnote I should add ONLY if you purchase a plan with a reputable warranty provider. There are MANY providers that I would NEVER do business with regarding extended warranties.)
I have been in MANY homes where the people were simply ecstatic that they had opted for the extended warranty. And on a four year old Tv the repair came to more than the Tv was worth..
That Toshiba you have there turn it on and listen to the hum. Turn the unit off and pay close attention to what the hum does. If the sound stop readily it's probably the color wheel. If it's still there for several seconds it's probably the fan. The fans are designed to remain running for several seconds after the power is turned off to help with cooling..
You might find a reputable shop locally and ask about the option of having the color wheel rebuilt. Tri-State module rebuilds some color wheel assemblies, and if they can do that it will be at a fraction of the cost of a new one...
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The color wheel on this set is not available. First thing I would do is replace the lamp. MCM electronics has a Philips for $99.00. The hum could have been the lamp fan which is common on these sets. There is a kit from Hitachi the includes some rubber dampers. What I commonly see on these sets is when the lighr engine is going bad(this is where the color wheel is) the color gets a green,bue or yellow tint and trhe picture may get dim. its rare that the color wheel stops working on this model. Call adifferent tech for sevice. Anyone with experience on these sets will know whats up.
It is either the color wheel or a fan. To isolate the color wheel, remove the back cover and make sure you put the lamp door back on so that the door interlock switch is activated. Turn the set on and get the picture and humming noise going. Just to left of the rear fan there are some wires. One is a really flat brown or rust colored ribbon cable that plugs in to a board on the left of the wires. This is the color wheel ribbon. When you unplug it the set will keep going for a moment or two but if the noise stops, you will know it is the color wheel. Don't be alarmed because the set shuts off with this ribbon disconnected. Just let all the fans stop (for proper cooling) and then unplug the set for 5-10 minutes. If the humming did not stop you have a bad fan motor. Plug the little ribbon back in while you have the set uplugged. Plug the set back in and turn it back on and try to isolate which fan it is, if it is a fan. If you determine it is a color wheel, the light engine will have to be replaced as Toshiba does not offer just the color wheel. If it is a fan, those can be replaced. I hope this helps. Let me know what you find and thanks for using fixya.
It's likely your color wheel rather then your fan. I've replaced quite a few of these and the fans are usually good. Get and estimate - I generally charge $250-350 Total
also google your model # and color wheel to investigate further.
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,
There are only two moving parts in this set. The fans and the color wheel. Typically when the color wheel starts to break or go on the fritz, the tv stops working. Count your blessings you've still got the picture. Open the back and turn the tv on. The color wheel is located on the optics block tray. The fans are very visible with the back off. Stop the fan for a second and see if the sound goes away. If not, you might want to start looking around for a replacement color wheel. Rivervalleyelectronics.net is a good place to start. Sometimes Discountmerchant.com carries them too. Be aware that there two different wheels available. If the fan is the culprit of your problem. Radioshack will likely have a replacement for you. If you need further help, post a comment or email me and I'll send you pictures of what to look for. Cfoley@hawaii.rr.com
I am wondering if this sound might be your color wheel spinning. The color wheel often makes a low humming noise as it spins. Try checking to see if this is not the source of your noise. You need the color wheel to generate the colors needed to turn the B&W picture generated by the DLP into a color picture.
i constantly hear complaints about fan noise in dlptvs
if you sit in front of your computer you will hear the same noise
even in the next room
there is no solution to the fan noise problem
this product has a huge cage fan and a second and third three inch fans in it.... more than the samsung product
it can be noticeable if the tv is on hard surfaces
ie wood floors ,inthe corner, glass top etc
the vents on the back of the tv allow for proper cooling of the lamp at shutoff so it doesnt shatter the tube
its kinda like annealing glass
its designed to extend the life of the lamp ....
which im sure youve priced
call toshiba and tell them your lamp is bad right now and get a new one for an emergency ( warranty if you can do it )
they are also improved
this product is known to have short bulb life
sometimes the zinging noise you hear is indicative of a bad color wheel in the light engine which would require replacement
( not cheap)
toshiba will not piece out the color wheel assembly individually