Projector Screen Adjustment

toneh · 25 Jul 2020 at 11:46

Hi,

I've got a cheapo ebay motorised projection screen from about 3 years ago that doesn't roll the screen up anymore. Over time the bit left out is getting longer and longer, and is now about 40cm showing when it stops rolling up. Also when rolling out, it now goes past the bottom stop and winds it self back up, a similar amount at a guess.

So it needs adjusting, but I can't find any adjustment screws in the projector itself, inside by the motor or on the outside.

The controller box has 'electronic limiter' on the back and you can feel a relay move inside when it gets to the point it stops.

So before I ditch it for a better one, has anyone come across a way to adjust this type of screen?

Thanks

Tony

toneh · 5 Dec 2020 at 16:57

Just to give some closure to this.

I finally got it down, and took the ends off, the one end was just a bearing, the other was on the motor with a keyed shaft. (if that makes sense).

Rerolled the screen up, and repositioned, and jobs a good one.

Toneh

rubberduck · 6 Dec 2020 at 08:11

Thanks, if you are thinking about replacing something always worth trying a risky repair. Worse case you break it and buy a new one anyway.

pugheaven · 6 Dec 2020 at 09:49

Nice work, was going to reply to this as I've got one of those now in the shed and I had mine apart but nice work man!

toneh · 8 Dec 2020 at 19:21

I was hoping there would be someway to do it from the control box, as getting it down is a bit of pain.

The reason I finally got round to it, was the screen sits in front of a bay window, and we put the Christmas tree in the bay, and couldn't see the top of the tree!