ST506 drive not spinning...

From: Rick Bensene <>
Date: Mon Feb 7 12:17:57 2005

May sound obvious, but have you checked the +12V and +5V supplies to make
sure that they are within spec.?
If the +12V isn't alive, or can't provide enough current, the drive won't
spin, as the 12V is what is
used for the spindle drive.

Rick Bensene
The Old Calculator Web Museum

> -----Original Message-----
> From:
> [] On Behalf Of Jules Richardson
> Sent: Monday, February 07, 2005 3:55 AM
> To:
> Subject: ST506 drive not spinning...
> Anyone know if an ST506 interface drive should always start
> spinning as soon as power is applied? I've never known one
> that doesn't, but I'm not sure if (as with SCSI drives)
> there's a way of rigging things so they only start when
> connected to a controller.
> Dug the Masscomp out of storage (it reeks of mouse piss) but
> the drives show no signs of spinning on the bench with just
> power applied - just get a click from the solenoid and that's it.
> cheers
> Jules
Received on Mon Feb 07 2005 - 12:17:57 GMT

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