8mm Forum: Yelco DS-630MS Help needed

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Topic: Yelco DS-630MS Help needed

Pablo Alvarez Roth
Expert Film Handler

Posts: 129
From: Chile
Registered: Aug 2006

posted February 15, 2018 05:11 AM

hi Guys,

Im sad to say that my beloved yelco will not rewind film anymore.

It will run forward without problem but when I rotate the switch to rewind nothing only light (which has caused one of my cartoons to burn.)

Does anyone have any ideas on what it could be I have open the projector and the belts and gear look fine its just that the motor will not rotate backwards?

Does anyone have a service manual that they could share please.

Also another issue with this projector is that for a while I have no sound from the speakers, but curiously when I plug the phone stereo plug I can use home amplifier speaker, it just that there is no sound form the projector.

again any service manuals would be great.

thanks team.

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Janice Glesser
Film Goddess

Posts: 3468
From: Sunnyvale, CA USA
Registered: Sep 2011

posted February 15, 2018 08:55 AM

I just looked up your projector in the Super 8 Database and WOW Pablo...what a nice machine. So sorry you are having troubles with it. As far as it not going into reverse... if it has micro switches to control motor direction then one or more could have gone bad. Your motor maybe brushless...but if not, perhaps the brushes need cleaning.

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Janice

"I'm having a very good day!"
Richard Dreyfuss - Let It Ride (1989).

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Alessandro Pavoni
Master Film Handler

Posts: 255
From: Zürich/Switzerland
Registered: Sep 2009

posted August 07, 2018 05:49 AM

Hi, I need a service manual too, would be great

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Steve Klare
Film Guy

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

posted August 07, 2018 11:59 AM

I'm with Janice here: it sounds to me like one of the motor switches has one bad contact. In the DC-motored machines I know, each motor terminal is connected to a switch that's set up to "choose" + or - DC. They work in tandem to choose the opposite terminal from what the other one does. If you had one dead contact you would wind up with forward and nothing instead of reverse.

It could be all that's wrong with your sound is your speaker connection, or worse yet the power stage of the amp is shot.

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

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Barry Fritz
Phenomenal Film Handler

Posts: 1061
From: Burnsville, MN, USA
Registered: Dec 2009

posted August 07, 2018 12:20 PM

I agree that something is bad in the switch. On rewind, the light should not come on at all.

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Nantawat Kittiwarakul
Master Film Handler

Posts: 280
From: Rajburana, Bangkok, Thailand
Registered: Aug 2017

posted August 07, 2018 08:09 PM

Although the switch itself is just a plain simple microswitch available at any electronic store. But replacing it means a major teardown job,not so fun at all. [Frown]

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Just a lone collector from a faraway land...

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Steve Klare
Film Guy

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

posted August 07, 2018 08:33 PM

I’ve done it: it’s the kind of job that feels good after you’re finished!

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

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Steve Klare
Film Guy

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

posted August 07, 2018 08:36 PM

(So much for “you may not immediately reply to yourself!”)

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

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