8mm Forum: Help! Another ELMO ST-800 Problem

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Topic: Help! Another ELMO ST-800 Problem

Dan Pinto
Film Handler

Posts: 32
From: Brooklyn
Registered: Jun 2006

posted October 06, 2007 10:15 AM

I recently purchased an Elmo St-800.

I'm in need of assistance!

The projector runs too slow at 24fps (and of course even slower at 18fps).

I changed both belts

I greased it up a little.

What else can this be?

Your help is needed. My 800 foot reels are needed too! [Smile]

I'm running some films through it now (guessing maybe it needs some work).

Thanks,

Danny

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If you stew cranberries like applesauce, it tastes much more like prunes than rhubarb does!

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Steve Klare
Film Guy

Posts: 7016
From: Long Island, NY, USA
Registered: Jun 2003

posted October 07, 2007 08:35 AM

Elmo machines that have been sitting for a long time often have problems with oxides building up on switches, and working the switches repeatedly breaks the oxide film on the contacts. Try flipping the speed switch back and forth about ten times and see if this helps. I can't guarantee this will change a thing (probably won't), but it has the benefit of costing nothing to try.

According to the manual, the ST-800 has a DC motor, which means to me there's some sort of speed control circuit. I'm betting that's where the problem is. (try the switch anyway...)

I'd also try setting the machine running and allowing it to run without film for maybe a half hour (no light needed). Maybe something has stiffened up from years of being idle and just needs to be worked a little while to free up.

800 Foot Gepes are available at B&H

http://www.bhphotovideo.com/c/product/20537-REG/Gepe_455320_8mm_800_reel_.html

..but you can't pick 'em up at the store. It's a drop-ship from Gepe's distributor.

Good Luck, Dan!

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All I ask is a wide screen and a projector to light her by...

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Dan Pinto
Film Handler

Posts: 32
From: Brooklyn
Registered: Jun 2006

posted October 07, 2007 04:52 PM

Well, thanks so much for the advice. I tried all of your tips but no dice...

In the words of the the late great Elvis... Return To Sender!

Thanks,

Danny

--------------------
If you stew cranberries like applesauce, it tastes much more like prunes than rhubarb does!

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Kevin Faulkner
Film God

Posts: 4071
From: Essex UK
Registered: Jun 2003

posted October 07, 2007 05:05 PM

Yes I would also look at the speed control circuitry. I dont have a manual for that model so cany go into detail. You should find a circuit board with probably just 2 adjustaable pots on it. One will be 24 and the other 18 fps. You could try adjusting them to see if they are working.
Failing that I would say you have a faulty component in the speed control circuit.

Kev.

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GS1200 Xenon with Elmo 1.0...great combo along with a 16-CL Xenon for that super bright white light.

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Steve Klare
Film Guy

Posts: 7016
From: Long Island, NY, USA
Registered: Jun 2003

posted October 07, 2007 08:07 PM

Kevin,

Is there any way to get the schematics for this machine?

Mine's running beautifully, and has been for years, but in the event of trouble I don't want to be flying blind trying to fix the thing.

Thanks!

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All I ask is a wide screen and a projector to light her by...

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Kevin Faulkner
Film God

Posts: 4071
From: Essex UK
Registered: Jun 2003

posted October 08, 2007 03:45 AM

I have never seen a Service manual for the GS800 and have just tried Oldtimer Cameras but they only list the instruction manual.

Keep your eyes peeled on eBay.

Kev.

--------------------
GS1200 Xenon with Elmo 1.0...great combo along with a 16-CL Xenon for that super bright white light.

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Dan Pinto
Film Handler

Posts: 32
From: Brooklyn
Registered: Jun 2006

posted October 09, 2007 09:40 PM

Hi again,

Thanks so much for the useful info, but rather than "Fiddle About" I just sent it back for a full refund. I did see the 2 pots there though...

Thanks again,

Dan'l

--------------------
If you stew cranberries like applesauce, it tastes much more like prunes than rhubarb does!

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