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Ok I bought this Elmo projector at a Swap Meet today and boy oh boy what did I get myself into? About 3 rollers are a melted sticky mess! (Are there more I’m not seeing?) Plus the lamp button appears to be stuck. But it’s such a cool projector I think it’s worth putting money into to get it going!
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Hi Andrew, standard Elmo problem with the rollers, I removed the rollers and cleaned off the sticky rubber stuff down to the brass center section and then built the roller back up to size with consecutive layers of shrink tubing, worked fine and still does. you would have to pull the cover off to see whats happened with the switch. -
It is possible to purchase re-manufactured rollers, if you don't want to do it yourself. For example URBANSKI in the US sells them, but there might be others on eBay, too...
https://www.urbanskifilm.com/projectors.htmlComment
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I've bought all my rollers for my Elmo's at Urbanskifilm. They are made to original specs and should last now the life of the machine. You will have to send in your old rollers In exchange.Comment
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And this is what I did. I glued the broken lamp button back in place too. I paid for the rollers and now I’m waiting for them to show up.Originally posted by Janice Glesser View PostComment
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Ok I got the new rollers on and mechanically and visually it’s working fine and dandy BUT now there is no audio on films. Not on the external speaker or when I plug in headphones! The exciter lamp is lighting up but all I get is a hiss! Is it one of those fuses or is it a electronic issue that’s Beyond my skill that involves a repairman? (And yes I don’t have film in it at the moment but it’s to show the exciter lamp is lighting up) is there an adjustment that has to be done that I’m missing?
Attached FilesLast edited by Andrew Bauer; May 02, 2024, 06:34 PM.Comment
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Ok it was mentioned to me that the issue could possibly a bridge rectifier that has gone bad. So of course something that involves a soldering iron! So I know it’s not gonna be a task I can take myself! UGH! I guess I’ll have to ship the whole enchilada to Larry Urbanski due to my ineptness with soldering electronics. ☹️Comment
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Does the "hiss" goes up and down along with the volume setting? At lest that would indicate the amplifier section still works just fine.
Then try rapidly moving a piece of paper between the lamp and the optical sound lens. As you moving the paper in and out of the light path you should hear the thud/thud/thud noise along that. If that does not cause any audible noise (other than steady hiss) that would mean something is blocking the light path hence no audio.
This reminds me an ELMO 16-CL projector that I once had. When first acquired even though the amplifier and the exciter lamp was powered up I got no audio output. After hours of hair-pulling I later found out that there're literally TONS of dust/dirt/gunk at front of the sound gate (that metal plate underneath the exciter lamp where the film slides through) blocking any light reaching the solar cell below that. Once thoroughly cleaned I got the full blown audio back immediately, and that's all the issue!
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Well the knucklehead who had it before me tried to play a film with the old mushy rollers and probably really messed up that part. I did my best trying to clean that part out but my q-tips or something is not reaching a bunch of melted rubber.Originally posted by Nantawat Kittiwarakul View PostDoes the "hiss" goes up and down along with the volume setting? At lest that would indicate the amplifier section still works just fine.
Then try rapidly moving a piece of paper between the lamp and the optical sound lens. As you moving the paper in and out of the light path you should hear the thud/thud/thud noise along that. If that does not cause any audible noise (other than steady hiss) that would mean something is blocking the light path hence no audio.
This reminds me an ELMO 16-CL projector that I once had. When first acquired even though the amplifier and the exciter lamp was powered up I got no audio output. After hours of hair-pulling I later found out that there're literally TONS of dust/dirt/gunk at front of the sound gate (that metal plate underneath the exciter lamp where the film slides through) blocking any light reaching the solar cell below that. Once thoroughly cleaned I got the full blown audio back immediately, and that's all the issue!Comment
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Ah that sounds bad.
Worse yet, you may have to disassemble to access the gummed up area. If my memory is correct I literally remove the entire optical slit lens block from the chassis in order to give it a good clean. This is NOT recommended as I later had to spend hours realigning the optical lens back to the position.
The more sensible alternative would be to remove the solar cell assemble on the bottom. But since this seems a bit different design from my 16-CL so I'm not sure how easy (or hard) to do so.Comment
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I made a YouTube video focusing on my issue with the audio. I hope everything is in place.Originally posted by Nantawat Kittiwarakul View PostAh that sounds bad.
Worse yet, you may have to disassemble to access the gummed up area. If my memory is correct I literally remove the entire optical slit lens block from the chassis in order to give it a good clean. This is NOT recommended as I later had to spend hours realigning the optical lens back to the position.
The more sensible alternative would be to remove the solar cell assemble on the bottom. But since this seems a bit different design from my 16-CL so I'm not sure how easy (or hard) to do so.
https://youtu.be/FSOC-VrVDKg?si=JsNABzy_a8i7OqvnComment
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I'm pretty convinced that it's just the dirt buildup blocking the light from the lens as previously assumed. If I have this machine in front of me I'd be able to sort it out in a few hours. Unfortunately since we're too far apart so this would be as much as I can do.
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