I've had the color wheel repaired for the same problem before, so I recognize the problem. I wonder if I can repair and get parts. Also is the problem related to a light tunnel problem. My picture quality has worsened to include "white glares" i loose detail in faces and other images as the white areas of skin that appear to be natural glare are really bright. Darkening the picture through the setting adjustements does not help. Please help me with suggestions. I'm really thinking about getting a new kind of projector, hoping to avoid anymore color wheel breaks if I can't afford the repairs over and over.
Daniel @ [email protected]
An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 100 times.
Re: SP 4805 LOUD BUZZING
I would suggest that you get another one. if this is the second time you are having to replace the same part than there has to be a reason that it is breaking over and over. projectors are funny when it comes to parts and service. even thought something looks like there is something major wronge it could be just a dirty lens from the inside. and than when it is simple it is usually something major that needs repaired. It is only my opinion that you buy a new one. but i will direct you to where you need to go to get the parts you need to fix the problem. i will post another comment in a few.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
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.
when you power it on, do you hear a high-pitched whir? if not, you need to replace the colorwheel. it's also the colorwheel if you hear a buzzing instead. if the colorwheel does not spin, the lamp won't come on. if the colorwheel is ok, check the lamp. is the screen on the side of the lamp clogged with dust? is the inside of the lamp bulging, spotted, or foggy? if so, replace the lamp and clean out your projector with canned air. dust blocks air flow and keeps in the heat. this shortens the life of your lamp and projector. if you do need the colorwheel replaced, you could get the part from an infocus service center and do it yourself, or send it in for repair. either way, try av solutions in ny. they're really good. www.avsolutionsny.com
If this sound you are describing is NOT constant and is intermittent in nature it is certainly not a color wheel problem. This sound is usually caused by failure of the Lamp cooling fan (the large one)'s Mos-Fet driver chip. Located on the bottom of the main board. These surface mount "chips" do fail and it's a fairly common problem however this is usually (but not always) accompanied by the projector shutting itself down after a few minuets or so as the high temp switch trips off. A color wheel common failure presents in two ways, either all the glass color filters fly off (there are six) and the image is monochrome (black and white) or just one or more of the segments has come off and the result is an imbalance of the color wheel which spins VERY fast resulting in a vibration that is constant and can easily be felt by placing your hand on the projector. And all of these problems are very easy to repair.
If you have any video at all and it's only Black and white there is a 99.99% chance that your Color Wheel has lost all of it's glass color filters. You can confirm this by removing the lamp. then look straight into the projector where the lamp was and you should see the color wheel of colored glass segments (Red, Green and blue) I believe you won't see them because they came off of the wheel. Also if you lift up the projector and turn it around in various angles and you will hear the small pieces of broken glass from the color wheel. Unfortunately you will need to take it to an authorized service center for repair. Be prepared to spend upwards of $300 for the repair.
That buzzing might be two things. It could be the color wheel or the ballast for the bulb. To check this you will have to move the projection section of the TV out of the case and listen for the sound in the area of the color wheel and the ballast. Try removing the color wheel power to see if the buzzing stops if it does then it's the color wheel is not and the ballast is buzzing then It's the ballast, and it will need replacing or if you know electronics you could try fixing the old ballast (I would suggest getting a new ballast).
Better still if you are uncomfortable working on the set you could get a qualified TV repair person to repair your TV .
it is the color wheel i have a similar problem and am looking for the part, the color wheel is a small electric motor that spins at a high speed and it can go bad. which will lead to the horrible squeel/hum/buzz.