Studer A810 Capstan Speed Problem

dbbubba · 7th March 2006, 01:34 AM

I have been ressurecting a Studer A-810 that I've had for a while and I have a problem with the capstan motor maintaining a constant speed.

This is a timecode deck and I just put a new Athan pinch roller on it as well.

The capstan motor is speeding up and slowing down at an even rate that increases with tape speed. I can even look at the motor running from the back of the deck and see it changing speeds. It is a very even sine wave modulation, but it is making the deck useless obviously!

Does anyone have experience with these decks out there?

I have talked to several people here in the U.S. (Geaorge Athan and John French, but they are stumped.) I have a call in to Steve Smith in Nashville, but I have not heard from him yet.

I figure some of you european guys might be more experienced with these decks.

Some of you had suggested toggling each of the MANY DIP switches, but that hasn't helped.

I was wondsering if since it is a timecode deck it might be looking for an external clock which is causing the capstan motor to hunt.

ANY IDEAS?

Danny Brown

3rd world order · 7th March 2006, 02:43 AM

way over my head.. time to call a tech.

dbbubba · 8th March 2006, 04:32 AM

Well, I guess that this is beyond this forum?

At last this will bring the thread back to the first page!

Danny Brown

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7th March 2006, 01:34 AM	#1
dbbubba Lives for gear Join Date: Sep 2005 Posts: 3,332	Studer A810 Capstan Speed Problem I have been ressurecting a Studer A-810 that I've had for a while and I have a problem with the capstan motor maintaining a constant speed. This is a timecode deck and I just put a new Athan pinch roller on it as well. The capstan motor is speeding up and slowing down at an even rate that increases with tape speed. I can even look at the motor running from the back of the deck and see it changing speeds. It is a very even sine wave modulation, but it is making the deck useless obviously! Does anyone have experience with these decks out there? I have talked to several people here in the U.S. (Geaorge Athan and John French, but they are stumped.) I have a call in to Steve Smith in Nashville, but I have not heard from him yet. I figure some of you european guys might be more experienced with these decks. Some of you had suggested toggling each of the MANY DIP switches, but that hasn't helped. I was wondsering if since it is a timecode deck it might be looking for an external clock which is causing the capstan motor to hunt. ANY IDEAS? Danny Brown

7th March 2006, 02:43 AM	#2
3rd world order Lives for gear Join Date: Sep 2005 Location: ann arbor, michigan Posts: 1,846	way over my head.. time to call a tech. __________________ 3WO - Mixing Without Tears "Tape is a mangler.." -- Slipperman // "The idea of the perfect album is this amorphous thing we're always aiming at. For us, it can mean something full of imperfection. Part of our aim has always been to destroy the sound in a beautiful way. It doesn't mean we expect everyone would like it. I'm not sure we will ever get there... but the whole point of making music is at least to aim at your own idea of perfection." -- Boards of Canada

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8th March 2006, 04:32 AM	#3
dbbubba Lives for gear Join Date: Sep 2005 Posts: 3,332	Well, I guess that this is beyond this forum? At last this will bring the thread back to the first page! Danny Brown