This is topic Elmo ST1200 HD Optical Assy in forum 8mm Forum at 8mm Forum.
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Posted by Tony Stucchio (Member # 519) on April 27, 2011, 06:20 PM:
Does anyone know if the Elmo ST1200 HD Optical Assy is the same as the 1200 and 1200D? I was curious if I could remove one from a 1200 and put it in an HD.
The Optical Assy includes the shutter/cam, claw, lens holder, etc. and can be easily removed. The only trick is removing the solenoid that releases the lock during auto-threading.
Posted by Tony Stucchio (Member # 519) on May 05, 2011, 06:16 PM:
bump
Posted by Steve Klare (Member # 12) on May 05, 2011, 06:38 PM:
Tony,
My first answer is "I dunno" as far as swapping in the optical assembly.
Then I'll answer your question with a question: (-assuming you are trying to add optical sound to a magnetic only machine)
Does the sound board on a ST-1200HD (M) accept input from an optical sound pickup? I would imagine that even if it's the same printed circuit board Elmo would depopulate the components that were only needed for optical sound (including the M/O switch) for the "M" only version.
Posted by Tony Stucchio (Member # 519) on May 06, 2011, 05:39 PM:
Thanks for the response, Steve.
The optical assy is a term I picked up from one of the service manuals. It has nothing to do with optical sound. On the ST1200 HD, it is a removable component that contains the shutter, claw, worm gear, and lens/gate assembly. I'm interested in knowing which Elmo parts can mix and match so I can build a good machine out of one or more disabled machines.
Posted by Steve Klare (Member # 12) on May 06, 2011, 11:10 PM:
I've always been reluctant to mess around with the claw, since from what i've heard there are critical adjustments that I don't know how to make.
-doesn't mean it's impossible: just something I personally avoid...
Posted by Tony Stucchio (Member # 519) on May 08, 2011, 12:20 PM:
Actually, you don't need to touch the claw if you remove the entire optical assy as one piece.
If you get a side-to-side jitter, then the claw needs to be adjusted. It's quite simple if you remove the optical assy. I made the mistake of trying to adjust the claw without doing that and it is nearly impossible. I lived for years with side-to-side jitter (but it only occurred on a small % of my films), until I adjusted the claw.
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