Question about HP Compaq iPAQ MP4800 Multimedia Projector

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Compaq Microportable Projector MP4800 will not light up

 Hello, here is the problem with my Compaq Microportable Projector MP4800
This is what happens: 1. Plug projector into power outlet 
2. Turn on the power switch 
3. The Standby button light up and is white in color 
4. Press the Standby button and it turns green in color 
5. There is a clock like noise.. Tic Tic Tic for 20 seconds 
6 Then the "ticking" stops and the fan comes on for 40 seconds 
7 no projection No light in the lamp 
8. Then the projector turns off 
9. The Standby button light up and is white in color 
troubleshooting : I have looked at the HP Trouble shooting ideas and they do not help 
setting changes : Yes we have placed a new projector bulb in the projector

 

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  • pjenewein Sep 15, 2008

    I have the same problem with my MP4800. I have also replaced ther bulb and can not find any help on Compaq/HP website. Anyone have any Idea's?

  • Anonymous Oct 15, 2008

    i had the exact same problem and figured it was broken so i took it apart to learn something. what it has inside is a color wheel (made by young optics inc.) and mine was broken (broken glass) which wouldn't allow it to spin to start up. so i am guessing that it automatically sends it back to standby so as not to burn up anything. but hey i am just an amateur.

  • Ossie007 Nov 11, 2008

    I have the sam trouble with my projector! A ticking sound and no light. This seems to be a common problem with it, so I guess Compaq knows about it?

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5 Suggested Answers

  • 1 Answer

SOURCE: no power on Compaq MP2800 Microportable Projector

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....

Good luck to ye!

Posted on Jan 30, 2008

Marrie
  • 563 Answers

SOURCE: HP vp 6120 Projector

Hi there

Have you reset the lamp timer ?

If you have and the problem stil occurs you will have to replace the Ballast ( lamp's powersupply ) This is a very common problem with this specific HP model.

Posted on Mar 26, 2008

SOURCE: Compaq iPAQ Microportable Projector MP1200

you will not be able to find these parts
really...
Good luck
honestly
buy a new projector

Posted on May 14, 2008

SOURCE: Unit turns on for 20-30 seconds then powers off.....Please Help

it is the ballast issue,u can try one of the equivalent ones or just try & rework on the old one, perhaps one of the mosfets is leaky!!!!!!!!

Posted on Feb 08, 2009

projdoc
  • 2236 Answers

SOURCE: no display from projector

try resetting the lamp timer. if that doesn't work: listen for a high pitched whir when you power it on. if you don't hear it, the colorwheel needs replacing. if you do hear it and it doesn't light, the ballast is bad and needs replacing.

Posted on Aug 10, 2009

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Your projector has a "Multimedia Adapter" .

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buy a new projector

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