what causes pink ghosting? InFocus LP735

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From what the www says, this has a 3-lcd panel optical system.
There will be a systen of mirrors &/or prisms to combine the 3 images before the projection lens.

2 possible causes I'm guessing:
1) something in the optics has become displaced - was the projector bumped? You might find a physical adjustment for gross convergence.

2) the convergence electronics has gone out of alignment. There is probably a service adjustment for this - some sort of menu accessible by entering the service mode.

How you access the service mode I do not know - it could be by pressing an odd combination of buttons on the remote control - service manual would help a lot there.
 
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