Question about InFocus LP640 Multimedia Projector
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: infocus lp640 lcd projector
The problem is not only with my notebook even my desktop computer doesnt show the image.I have tried all the ways before asking for the solution.
Posted on Jul 11, 2008
remove the top case, carefully unplug the ribbon cable from the main board, remove the 5 screws holding the board on, remove the 2 screws from the back (where the audio plugs are), and remove the 6 spacers from the vga/computer connectors. unplug all the plugs (be very careful unplugging the 3 ribbon cables in the middle. unlock the socket first by lifting up on the tab, then pull out the ribbon cables). remove the emi shield from the edge (metal clip with 5 fingers). remove the board!
Posted on Nov 05, 2009
SOURCE: lp640 infocus 1 red
This means that the lamp didn't strike after five (5)
attempts. Unfortunately this can be caused by several different problems. Here are a few in order of most likely on down.
1) The lamp has failed
2) The molex connector that the lamp plugs into is loose and is not mating correctly with the connector on the lamp.
3) The lamp door (cover) is not fastened snug to the projector ie. the black screw that holds it is loose which can cause the safety interlock switch to close/open.
4) The ballast (lamp power supply) has failed and needs to be replaced.
Each of these problems can and will cause the the LED to blink once.
Posted on Dec 29, 2009
Hello, If there is absolutely no sign of life at all just like it would look if it were unplugged...
The problem is a diode on the switching power supply at the rear of the projector. It's easy to fix if you know where it is. PS There is a 99.999% probability that the Diode is the problem and not a fuse..
Posted on Jan 19, 2010
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