Projector prism glue (Infocus LP290)

[tmcw]

Got this projector that was having blue and yellow bands along the left and right portions of the projection respectively.

When I opened it up, I found that the second prism after the lamp wasn't sitting in it's correct place, the glue has come undone. (lamp>prism>mirror>prism>)

I managed to carefully move the prism to it's correct place, and the picture appears to be correct, but what sort of glue do I need to get to refix the prism? When the projector is tilted backwards, the prism falls out again, so needs to be fixed back in again.

The glue/compound used before has left a white, hard reside behind it, and seems to have been used on all four edges of the prism/prism housing.

[newtothis]

Re: Projector prism glue (Infocus LP290)

id use something simple like PVA... if it doesn't work it easily peels back off with no harm done

[freakaftr8]

Re: Projector prism glue (Infocus LP290)

Lol pva is the kind of stuff they used in color crt tvs from the 60s and 70s for the glass outer layer. Be careful not to get any on the lens. But yeah that will work

[tmcw]

Re: Projector prism glue (Infocus LP290)

Thanks guys...

Is that the same white stuff (globs of it) we sometimes see holding some larger components to the circuit board (I've always presumed to aid with assembly/soldering)?