Author
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Topic: Critical: For GS 1200 Owners
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Chip Gelmini
Phenomenal Film Handler
Posts: 1733
From: Brooksville, FL
Registered: Jun 2003
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posted November 07, 2017 06:24 PM
ATTN: GS 1200 OWNERS
Okay this is a strange one.
Follow these steps. Note: Use caution. You need to have the volume very low. It is also done without film loaded. You should be throwing a white light only. Unplug any output cables and use only the built in speakers.
Begin test:
1. Use built in speakers. 2. Use track one volume control, set to less than “2” on the scale. 3. Put the projector in optical sound mode. 4. Put the projector in forward mode. 5. Turn on the picture lamp. 6. Drop down the front cover to expose film path. 7. Move your hand very close to the lens up and down very quickly. 8. Remember to have the sound down low, less than 2 on the scale.
WHAT IS THAT NOISE YOU HEAR? HOW IS IT CAUSED?
I am clueless and concerned. All of my GS1200 machines do this, and it would appear this should NOT be happening. Thanks for your suggestions.
I am trying to learn the nooks and crannies of these projectors. When I get one, I give them a head to toe kind of test - perhaps unlike anyone else probably does. And the problem I have described here does concern me. Because as far as I can tell, it's not normal for optical sound.
As your hand blocks the picture lamp in a sweeping motion following the steps above, you should hear a short blast that, well to put it bluntly, sounds like a light saber from Star Wars.
YIKES
End of test.
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