Question about BenQ PE8700 Multimedia Projector

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Ringing sound with fan?

Most of the time when the fan is running I get a high pitched ringing sound that is very annoying. I already have tinnitus, but this is a different sound.

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That high pitched ringing sound is a faulty colourwheel that will need replacement.

Posted on Apr 11, 2008

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3 Answers

Annoying hum on the projector


are you sure its not the fan?
I supose its good to clean the fan and the inside ones a year.
dust gets in there.

The fan could be failing.

il get back to you about the humm

Mar 27, 2008 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

High pitched 'screaming' sound


try checking the fan could be it needs a bit of oil or reolacing.

May 25, 2010 | InFocus ScreenPlay 4800 Multimedia...

2 Answers

Will not turn on, red light flashing next to the menu button


if the fans don't turn on, they may be bad and needs replacing or rewired. if the fans turn on but not the lamp, the colorwheel may be bad (listen for a high-pitched whir when you switch it on. if no whir, replace the colorwheel). if the colorwheel is ok, replace the lamp.

Mar 07, 2010 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

Hello there Not sure if the weekend is a good time but anyway anything is worth trying at this stage! There appear to be two fans, the one that cuts in when the lamp comes on - the one that sounds more...


Hi,
Vibrating fan requires lubrication on its shaft, drop little thin machine oil and hope problem will be solved, for time being.
Correct solution is to replace that fan.
Thanks.

Feb 13, 2010 | Toshiba TDP-T90 Multimedia Projector

1 Answer

InFocus ScreenPlay 4805 no projection. Unit powers on and green light blinks, but no light and no fan, eventually red light blinks continuously about 2 seconds between blinks. When the green light is...


the high-pitched sound is the colorwheel trying to spin up to speed. that may need to be replaced. check the inside of the lamp for bulges, black spots, fogging or flaking. if it has any of those, replace the lamp. you can get parts from an infocus service center or send it to them for repair. either way, try www.avsolutionsny.com they're really good. if you want to replace it yourself, there is a detailed step-by-step on my "tips" area. it's the same as the infocus x1, x2, x3 and sp4805. click on my picture and scroll down to tips. good luck!

Feb 01, 2010 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

Annoying metallic winning sound from projector


Hello there! No, it most likely isn't the fan--but something more expensive--sorry. In DLP projectors, there is a small metal disk called a color wheel with red, green, and blue glass panels mounted around the edge. It spins extremely fast due to a little motor and gives you the color in your displayed image. Normally, when spooling up to speed, it sounds like a tiny jet turbine engine with a high pitch. If the bearings get worn due to age or heat, it can sound like your unit is possessed by a banshee! lol You'll definitely need to send the unit in for repair. Under warranty, GREAT! If not, send the unit to a repair facility directly--not through a store!

Dec 30, 2009 | Mitsubishi HD1000U DLP Projector

1 Answer

A power cut whilst the projector being used, caused power light to blink red, now the projector doesn't turn on


it could be the fan, colorwheel or high temp. remove the lamp and turn it on. do the fans spin? if not, replace the fans. does the colorwheel (colored glass wheel near the lamp) spin? you should be able to see it and hear a high-pitched whir. if not, replace the colorwheel. if the lamp was still hot when it was turned off, you need to let the fans run and cool. then unplug it, plug it back in and try again.

Nov 07, 2009 | InFocus LP70+ Multimedia Projector

1 Answer

Unresponsive, lamp dies upon start


if you don't hear a high-pitched whir, the colorwheel is shot and needs replacing. if you do, one of the fans might not be working and the heat shuts it off so as not to cause damage.

Oct 15, 2009 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

High pitched sound from my sony VPL-VW100 projector


I have the same problem...did you ever get your high pitched sound fixed?

Nov 29, 2008 | Sony VPL-VW100 (Ruby) Multimedia Projector

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