Elmo GP Projector Bulb Problem

[Don Elsass]

While viewing a film I pressed down on the threading lever to stop jumping and the projector bulb turned off. It won't turn on again. Why?

[Steve Klare]

Hi Don,

Have you verified that the lamp is ok?

One thing should have nothing to do with the other, but coincidences happen all the time.

[Don Elsass]

I put a new bulb in with no change. The threading lever is in up position. There is no voltage at bulb pin connectors.

[Steve Klare]

Is this one of the machines that you turn the lamp on and off by pulling the speed lever out and pressing it back in?

[Don Elsass]

Yes, that's the one.

[Nantawat Kittiwarakul]

This sound VERY similar to this thread.

https://8mmforum.film-tech.com/vbb/f...age-to-turn-on

Root cause: stuck "safety" roller - the one right after bottom sprocket. If it sticks in the "up" position, the lamp won't turn on.

[Shane C. Collins]

This sound VERY similar to this thread.

https://8mmforum.film-tech.com/vbb/f...age-to-turn-on

Root cause: stuck "safety" roller - the one right after bottom sprocket. If it sticks in the "up" position, the lamp won't turn on.

I agree, the stuck film roller is probably the issue here.

[Steve Klare]

I need to study Silent Elmos better!
(-I've never owned one!)