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Wheres the fuse of lp640 - InFocus LP640 Multimedia Projector

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Lamp for LP640 in focus projector gives off yellow color tint on screen


the blue polarizer is most likely damaged due to overheating and old age.

Jul 28, 2011 | InFocus LP640 Multimedia Projector

1 Answer

My InFocus LP640 Projector Multimedia Projector's light comes on but not splash screen appears. Just sits there


try reflashing the projector with current firmware, if that doesn't work, you nvram chip or main board is bad.

Aug 29, 2010 | InFocus LP640 Projector Multimedia...

1 Answer

How to disassemble an InFocus LP640


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!

Oct 30, 2009 | InFocus LP640 Multimedia Projector

1 Answer

Where can i get a price quote for a ballast for a LP640


part # 510-1830-01. $67.39 (incl. tax). let me know. repair.avsolutions@gmail.com

Aug 12, 2009 | InFocus LP640 Projector Multimedia...

2 Answers

Infocus lp640 is broken. no lights. nothing.


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..

Cheers

Nov 04, 2008 | InFocus LP640 Multimedia Projector

1 Answer

TROUBLE IN LP540


Check for internal fuse on power module, you will have to open the case.
Make sure power cord is removed. Be carefull capacitors tend to hold a charge long after power is removed. I have a LP640 ....big brother to this one. If you open the case the warranty is voided so think about it first. the fuse could be on the circuit board and will look like a small solid green resistor or it could be a full sized fuse in-line with the wires coming from the power cord connector. I have seen the inside of a LP390 with the fuse behind the power inlet connector. Good Luck

Sep 20, 2007 | InFocus SP-LAMP-017 Projector Lamp for...

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