Dear Expert, Our company has a Compaq MP2800 Microportable Projector which is not working properly. When you turn it on, it works properly for a short time and then automatically shuts off and powers down. If you try to re-start it, the same things happens, where it starts up fine, and then after a short time, automatically shuts off and powers down. Why is our projector doing this? What do we need to do to repair the projector so it works properly? Thanks for your help. Gordon Busenbark Xytis, Inc. 949 725 3700 Ext.18 firstname.lastname@example.org
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Re: Compaq MP2800 Microportable Projector
If it is detecting a power surge it may shut down. Does it seem abnormally hotter than usual or is any specific part hot? Has it been cleaned at all, dust tends to collect and could disrupt it, try blowing it out with a little compressed air,
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Are there any lights blinking?
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This could be one of 2 things. It could have a bad color wheel or there is a setting problem in the unit. If the video mode is not set correctly like NTS or PAL it can give a black and white image.
The other could be your color wheel has failed. Did the unit make any noises before the color went out?
Some times the color wheels will make noises when the age before they crack or break from the heat.
I believen you can pull the lamp out and with the lamp out try and power the unit up, look into the little hole the lamp shines into and see the color wheel spinning. when you first plug it in and unplug it the wheel should spin and you should see the colors change. DONT TOUCH THE COLOR WHEEL they are fragile and can break easy. Some get more brittle over time from the heat of the lamp.
If the projector is not getting a source it might go on standby maybe check where you plug it in.
Projectors require quite a bit of power and should be on a single loop/outlet not hooked up to a powerbar with more things on it.
I had the same problem!
The problem is dust on the color wheel. At side of the color wheel is a wire connector attached wit one small screw, with a cottom tip clean the small lens and surface, that's all.
Put the connector and screw and it will OK!!
I am currently struggling with this issue. There is an easily-accessed fuse inside the projector. I was very excited to discover this last night. However, before you get you're hopes up (as I did) remember: If the fuse blew, something else probably went first. After buying and replacing the fuse today, I realise that I need to replace or repair the power supply as it pops the fuse every time.
Here's how to get to the fuse: Take off the lamp. Now, looking at the projector from the back, you need to remove the left hand side panel. This involves taking out 2 screws from that panel, 2 from the bottom and the 2 video connector hexagonal bolt things that are also in that panel. The panel sort of hinges off, starting from the bottom. You will see the fuse in the bottom right corner where the power lead goes. It is a slow-blow (time delay fuse) so get the exact same one to replace it. A pack of 10 cost me €4.19 in Maplin, Galway, Ireland.
Anyways, this did not do the job for me... the power supply set the fuses off like fireworks and also blew a few in the socket plug as well (I don't think US readers will have those) I will let you know how I get on with the power unit....