8mm Forum: SANKYO help

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Topic: SANKYO help

Brad Kimball
Phenomenal Film Handler

Posts: 1171
From: Highland Mills, NY USA
Registered: Jun 2003

posted January 19, 2004 02:59 AM

I have a SANKYO SOUND projector that when I attach the electrical cord and fire it up... all that happens is the little white fan thingy (in the back of the unit) spins for about a second... and then "kaput"....Nuthin. Can this be repaired?

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Brad Kimball
Phenomenal Film Handler

Posts: 1171
From: Highland Mills, NY USA
Registered: Jun 2003

posted January 19, 2004 12:04 PM

It's a SANKYO 500 SOUND if this helps. The light in the machine comes on, but that's it I just can't get it do anything else.
It's a shame because i would hate to have to just throw it away.

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Douglas Meltzer
Moderator

Posts: 4554
From: New York, NY, USA
Registered: Jun 2003

posted January 19, 2004 12:41 PM

Hi Brad,
Just a little more info....when was the last time the projector worked properly? Also, when the volume control is turned to max is there any audible hum?
Doug

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I think there's room for just one more film.....

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Brad Kimball
Phenomenal Film Handler

Posts: 1171
From: Highland Mills, NY USA
Registered: Jun 2003

posted January 19, 2004 02:53 PM

Not sure when it worked last. It belonged to a neighbor who no longer wanted it and gave it to me before they moved away. Yes, there is an audible hum when the volume is turned up.

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Maurizio Di Cintio
Jedi Master Film Handler

Posts: 977
From: Ortona, Italy
Registered: Jan 2004

posted January 19, 2004 04:17 PM

Hi Brad.
The problem could lie in one or more of the following:
a) a failure in the motor (it might just need cleaning rather than replacing)
b) an electronic problem in the motor control board
c) the rubber drive belt might need replacement.
All you can do in the first place is to open the back of the machine and see if the belt is still in its place.
If it is, try to remove it momentarily and turn the motor's pulley by the hand in order to assess if it moves freely or if the motor needs cleaning/lube. In this case it is possible to open it and work.
If the belt is broken you can replace it with an O-ring of adequate diameter (you may need a few trials, a piece of rope can be useful to determine circumference)

Lastly if all of the previous do not lead to any result, you may have to replace the control board or have it fixed by a techinician (it maight have a problem with some electronic component). It shouldn't be very difficult, though as it is basically a 2-channel (18+24 fps) DC motor speed regulator; any skilled techinician should be able to figure out how it works even with no circuit scheme.

Hope this helps.

--------------------
Maurizio

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Douglas Meltzer
Moderator

Posts: 4554
From: New York, NY, USA
Registered: Jun 2003

posted January 19, 2004 04:44 PM

Brad,
It could be a simple mechanical problem. When a projector isn't used for a long period of time, the grease/oil accumulation on the gears and shafts can render them immobile. Open up the back (unplugged for now) and take a look. If there is a manual advance knob try it and see how the drives work. If the grooves are clogged try WD-40 and use the manual advance to help work it through.
Doug

p.s.- of course while I was typing this reply, Maurizio posted and beat me to the punch! Well...redundancy isn't always a bad thing....

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I think there's room for just one more film.....

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Maurizio Di Cintio
Jedi Master Film Handler

Posts: 977
From: Ortona, Italy
Registered: Jan 2004

posted January 20, 2004 01:04 PM

Hi Douglas!
Now that I've read your post, I think perhaps I was a little too pessimistic. I hope I was wrong.
Good luck, Brad

--------------------
Maurizio

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Brad Kimball
Phenomenal Film Handler

Posts: 1171
From: Highland Mills, NY USA
Registered: Jun 2003

posted January 21, 2004 04:00 AM

Thanks, Fellas. I'll keep you posted. BTW, where is the manual knob I can use to see if it advances? Not sure what I'm supposed to turn and i don't want to force anything.

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Brad Kimball
Phenomenal Film Handler

Posts: 1171
From: Highland Mills, NY USA
Registered: Jun 2003

posted January 21, 2004 10:13 AM

Belt is ok. No cracks or splits.

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Maurizio Di Cintio
Jedi Master Film Handler

Posts: 977
From: Ortona, Italy
Registered: Jan 2004

posted January 26, 2004 06:43 AM

Hi, Brad.
Only the higher end Sankyo(-s?) like the 800 Stereo feature the manual advance knob.
As for your machine, I suspect more and more a motor control board's electronical fauilure, but it's diffuclt to say without having a look at the machine.
Sorry

--------------------
Maurizio

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