Question about Sharp 56DR650 56" Rear Projection HDTV

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My TV loudly hums when I turn it on

I have a Sharp 56DR650 Tv and it is starting to hum loudly everytime I turn the TV on and does not stop. How can this be fixed? Thanks

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  • Gary Walsh May 07, 2007

    Yes...LOL The picture and sound our fine but the loud humming is getting very annoying.

  • Gary Walsh May 10, 2007

    Anyone have any ideas?

  • Anonymous Nov 11, 2007

    My Sharp hdtv is doing the same thing. A loud hum just started. The sound is coming from the TV and not from the speakers. I had a similar problem right after i bought the TV and SHARP repaired under the original MGF warranty. Now about 2 years later the same problem.

  • Anonymous Nov 25, 2007

    I had same problem with 56DR650. Loud humming noise started shortly after purchase. SHARP repaired under warranty. Less than 2 years later the same problem reoccured. Product is out of warranty and SHARP will not help.

  • Dsig41 Nov 27, 2007

    My TV also hums a good bit. Sometimes it's louder and other times it's not as bad. I originally thought it had something to do with the fan, but now I'm not so sure.

  • thegoph1 Dec 09, 2007

    I have had mine for 15 months and it has recently begun generating a loud humming sound as well.

  • er-yal Dec 22, 2007

    I have the same problem. I beleive it is the color wheel as one other person thought. It is a friction/vibration sound. A mechanical sound not electronic or electrical.



    Anyone have any ideas????

    I have 6000 hours on mine and just bought a new lamp.

  • sadsharpdude Jan 19, 2008

    yes have same problem .13 month old unit, bought thru costco ,1000 bucks. if it sounds to good to be true it probably is. maybe i can exchange it. costco warrantee. otherwise tv is great. but humming is very noticable. my fear is even if it can be repaired it will reoccur for future headache.

  • gator73 Feb 14, 2008

    Yep, have the SAME problem. I am so angry. I bought mine from Costco.com for $999 a little over a year ago. Three days ago a loud noise appeared that will not go away anytime I turn it on. This is ridiculous. Called Sharp and they were downright rude and told me I would have to pay to have it fixed. I commented about this site and the reviews I read and was told "I can find a service center near you to fix it for you". First of all, I can not fit a 56" tv in my car, and second of all, I am not paying for it to be fixed like I was told I would have to do. Right now I am calling Costco.com to report this and I want a full refund. I did not spend over $1000 for a TV that would last one year. That is a disgrace.

  • Sharp hater Feb 17, 2008

    Same problem, sounds like a fan behind the TV on the left side as you look at the TV. We are trying to get it repaired and everyone keeps saying color wheel. I'd bet it's not that. Does anyone know for sure what this is?

  • Anonymous May 03, 2008

    Loud annoying 'humming' sound. My first thought was that it was the lamp cooling fan going bad. I have since eliminated the fan as being the problem. I know will look into the 'color wheel' as the problem?

  • Bruzzy May 05, 2008

    This is a follow-up to my 03 May 2008 posting. Cleaning the color wheel did not solve the humming noise problem. However, I now do believe the noise is coming from the color wheel. My guess is the bearings in the color wheel (or its equivalent) are going bad. My next step is to replace the color wheel. Sharp’s customer service however will not sell directly to its customers (I’m outraged)! Does anyone know of where to purchase parts for the 56DR650 HDTV?

  • Anonymous May 22, 2008

    Yes, I also purchased my TV from Costco. about a year ago and i'm also plagued by the loud hum. I've since lost my faith in Sharp products. Looks like i'll be trying the color wheel fix?

  • ohou Jul 07, 2008

    I have the same problem with the noise from the color wheel.  Tried to clean the color wheel.  Unfortunately, I also broke the lens between the color wheel and the lamp.  If you are planning to junk your set, I would like to buy the lens from you.

    ohou@earthlink.net 

  • CryoMechguy Nov 13, 2008

    My Sharp56DR650 rear projection TV purchased from Costco in July 2006 started humming/buzzing at just under 7900 hours (based on bulb life timer, on my second bulb). For the first week or two it stopped humming after the unit was on for 30 minutes to 1 hour. Now it seems to be pretty constant. The picture is still great. I took the back panel off and can feel that the vibration is coming from the color wheel area, bearings I imagine. A service company confirmed my suspicion that it is common in this model. The color wheel comes with the light engine and the replacement part is $1630 which is more than I paid for the TV. The technician said the thin glass color wheel is wobbling and eventually will get stress cracks and shut down the TV after 15 minutes.

  • jlaz1970 Nov 24, 2008

    Do not work on your TV unless you are SURE your warranty is expired. Most of these seem to have been purchased at Costco. I bought mine just over two years ago. I call Costco Concierge service (not customer service) and they told me I had 355 days left on my warranty. Costco has also went beyond my warranty to fix other things.
    If you work on your TV, you will void your warranty.



    I only buy large purchases because they are so willing to fix things and they will also give you price adjustments way beyond 30 days if you ask nicely.



    I'll post again to let you know what went wrong with the TV. I am guessing the color wheel fan based on what I have read.





  • tvjunkie09 Feb 09, 2009

    I have the same problem. I purchased my TV in June 2006, and the problem started in Sept 2008. At first it was just a low-pitched whir...kinda like flourescent lights. However, over time, it has progressed to a hi-pitched annoying jet-engine sound that cannot be drowned out or ignored.

    I finally broke down and decided to call Sharp. No help. They pretended that they had never heard of the problem before. I told them to do a Google search for "Sharp 56DR650 noise" and enlighten themselves!

    I called Costco Concierge service, and they told me that Costco had extended my warranty service. Amazingly I still have another year left!!!! They placed a service call for me. The tech is supposed to come to my house on Wed.


  • Anonymous Feb 21, 2009

    Great...Sounds like the tv is junk when the noise appears. I bought ours april of 06..its been great till about a week ago. ear piercing humm.

    Any words of advice. Im calling costco in the morning.


  • Anonymous Mar 22, 2009

    i have humming sound . on this 56 dr650 56 in rear projection hdtv television . i bought it at costco. less than 3 years ago. help

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I know this is probably to late to post but maybe it will help others currently having the problem. the loud noise is comming from the color wheel motor. it needs to be cleaned and regreased. it is very easy to do yourself as long as your mechanically inclined. if not then order a new color wheel and have it installed by a tv repair man if you have the money. you can find the steps on this website on how to remove the color wheel from the tv. I know becaue i have done it to mine and it is quiet and working beautifully. if anyone has any questions please feel free to email me and i will try to answer it to the best of my abilities. no i am not a tv repairman but i have been an electrician for the United States Navy for 16 years so I know a thing or two about electronics and I hate spending unecessary money fixing something where I could have done it myself. feel free to email me. thanks and good luck.

Posted on Feb 23, 2009

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This is a follow-up to my 03 May 2008 posting. Cleaning the color wheel did not solve the humming noise problem. However, I now do believe the noise is coming from the color wheel. My guess is the bearings in the color wheel (or its equivalent) are going bad. My next step is to replace the color wheel. Sharp’s customer service however will not sell directly to its customers (I’m outraged)! Does anyone know of where to purchase parts for the 56DR650 HDTV?

Posted on May 04, 2008

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I had the same humming on the 56DR650. I called Sharp and they sent someone out to my home to fix it from a TV repair shop. It was 2 years old and I had no extended warrenty. Sharp just fixed it for me. They were really cool and paid for it.

Posted on Apr 28, 2008

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Ok, I just picked one of these babies up this past weekend. It was cheap, so I didn't bother with the research once i saw that it powered on and seemed to work.

It was sold very cheap because it was throwing codes, which the previous owner was told was a cooling fan. Due to my computer hardware experience, I decided to trace what the problem was. The 2 accessible fans were working flawlessly and silently, the 3rd fan (going to the input components) was stopped due to dust bunnies. A can of air and a complete cleanout solved all issues with the cooling fan codes. The loud annoying hum is the motor that turns the color wheel. Since I had everything out of the TV anyway, I decided to trace the sound which is actually behind the color wheel and sounds more like a bearing or mis-balance in the spinning motor. The color wheel itself is in perfect condition.

In the meantime....annoying hums are fixed simply by turning the volume on your tv or sound system up - it's barely noticable during normal operation and is only really annoying when initally turning it on.

Hope this helps someone.

Posted on Apr 25, 2008

  • Holy_HandGR Apr 25, 2008

    BTW: I wanted to let you all know that spending $95 for the lamp cooling fan is foolish. The fan is a standard 120MM cooling fan which can be picked up nearly anywhere for $15 or less. While it does require the proprietary connector to plug into the power source, spending $15 at your local computer store and about 10 minutes sodering will save you a bundle.



    Note, The fan in the tv has 3 wires, Red, Blue, Black. The computer fans will have Red, Yellow, Black. From testing, the Blue wire is the same as the yellow wire (monitor) Where Red is Positive current and Black is negative current.

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Hello we fixed this model in our shop today
after trying to get original parts they are not avail so it is ness to use a toshiba colour wheel,
and use the original sensor from the sharp
it is also ness to go into service mode to adjust the index delay
contact me for details

Posted on Mar 03, 2009

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After a few tries, Sharp customer relations agreed to pay for the replacement color wheel part at an authorized Sharp repair shop. Labor is at my cost. As previously described, the TV is 2.4 years old and out of warranty. I first tried e-mail but got what looked to be a generic reply telling me to call customer service. My first call to customer service was not satisfying at all. After a few holds I was told there was nothing they could do for me or offer me (after they rejected paying for the part, they also rejected giving me any rebate or discount on a new TV). The last call was made by my wife on a different day. She got the same answer that they couldn't do anything from the first person. She then asked to speak with someone else who could possibly do something. After some convincing about the obviously faulty problem and an argument that who would ever buy another Sharp TV if the last one only lasted 2 years, they agreed to pay for the part. They faxed a memo to the repair shop and it is now being repaired. Thank you Sharp.

Posted on Nov 21, 2008

I had this exact same problem. Fortunately for me, Costco extends the manufacturer's warranty for an extra year, so they will fix it up to 2 years after date of purchase. I found this out on 8/12/08, and I looked up the purchase date, and it was 8/13/06! What luck!!! I called Costco that very day, and they got me in the system so I was still under the warranty (barely).

So they got a tv repairman to come out, and he determined the problem was the COLOR WHEEL'S MOTOR. He came back a week later, swapped out the motor, and now it works perfectly with no noise at all, and no cost to me!

Posted on Sep 09, 2008

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The noise you are hearing is most likely the color wheel. The easiest way to check is to run the set and unplug the brown flat wire to the color wheel, if the sound stops its the color wheel.
If this is the case, I have them available and its cheaper then changing the optical engine.
http://www.palmbeachav.com/Contact_us.html

Posted on May 22, 2008

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Same problem with my unit. I just changed the fan and that did not help. Powered up tv with back off and can hear the noise
from the color wheel. Same sound as others described above.
Hope I can locate part somehow or may try to remove and inspect for problems.

Posted on Feb 21, 2008

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Well, purchased tv 12/31/05, by 3/1/06 tv was humming loudly. Under warranty they replaced the light engine. Now 12/07 it's at it again. It would be the third part in 2 years if I could afford the expensive repair. Repair would be 1.5x the cost of the TV originally. Time for a smaller LCD for over the fireplace. I am going to try to go to the Sharp Corporate office in Mahwah, NJ. Their phone number is 201-529-8200. Ask for the Consumer Electronics VP office and file my complaint there. They know about the issue. Whether they do anything is another thing. Customer Service won't do ANYTHING. But that's expected unless they were authorized by MGT. If enough of us that have this POC TV will hassle them maybe they'll do something. Good luck everyone.

Posted on Jan 05, 2008

You need to replace your lamp fan. The bearing is wearing out. Fan cost about $95. Here is URL to purchase fans. http://www.partstore.com/Model/Sharp/Sharp/56DR650.aspx

PO

Posted on Dec 24, 2007

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It hums because it doesn't know the words! just kidding. Does the set work otherwise picture and sound?

Posted on May 07, 2007

  • Don
    Don May 10, 2007

    Is it comming from the speakers or from the back of the set? It is possibly a transfomer vibrating at 60hz

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It is the color wheel. A fix can be found at
http://www.instructables.com/id/SAAIP47FB11KZYB

- at your own risk, but if you have the time & littleknow-how it can be done. The option is replacing the color wheel - which costs more than the set in the first place! ~~KO

Posted on Feb 25, 2008

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Mine did this too starting 11 months ago. I think it is the color wheel or something. It still worked except about 2 months ago it started getting louder, and then it started not turning on when I pressed power. The power led light would just blink 3 green times and 2 red. I would have to unplug it then plug it back in and eventually it would turn on. Starting 4 weeks ago it stopped turning on for got. I'm currently waiting for fry's to replace my tv (I have a warranty), because sharp doesn't make the part they need to replace so frys finally decided they'd have to give me a different set. So the solution as I know it is to hope you can return it or have a warranty because there's no replacement parts for this tv anymore.

Posted on Jun 25, 2007

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