Question about InFocus LP 750 Multimedia Projector

1 Answer

My LP 750 is dead


When I connect my projector to the power outlet tow things happens:

1) An electrical pop up sound comes from the small speaker.
2) From the power light indicator comes an dim amber color light.

As far as I know, after I disasembled the projector, the power supply is in good condition ( I inspected the power supply inside and looks very good. Also, I found inside the power supply a green led turned on so I conclude that the power supply is in good condition). All the electronics components looks good (nothing burned). I think the problem could be the main board.

If somebody has some troubleshoot ideas it would be great. Also, I would like to know where can i find a new main board.

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  • mercedr May 15, 2008

    Thanks Marrie for helping so fast!!!

    I'm from Puerto Rico.

    There are two barcoded labels:

    The first reads AH912 6710

    The second reads 510-1338-10 00

    Thanks for your support again!!! :)

  • Keara507 May 29, 2008

    I have the same two issues with my model. The amber light and the "pop" sound upon start up. Did you find a solution? Thanks!

  • mercedr Jun 02, 2008

    Hi Keara507:

    I'm stíll waiting for Marrie to write where I can find the main board. Please check this site often so you can fix your projector too.

    If you find the answer first, please let me know. Thanks for write here!!!

    Good Luck!!! :)



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Hi there

This sounds like a faulty Mainboard - could you supply me with your country and the part number on the Mainboard ?

Posted on May 13, 2008


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