[comp.sys.apple] Sider Hardware Problem

tribby@hpindwa.HP.COM (David Tribby) (07/27/89)

I have a Sider 10mb hard disk (several years old) whose power supply quit
working. I bought a different power supply in the hopes that I could get the
disk working again.

The supply provides power to two distinct places: the motor drive and a
circuit board. I removed the connector to the board, and then could power
the drive without any problems. It worked about half the time with both
parts connected to the power supply.

There seems to be a relay in the Sider, and I wonder if it is supposed to
turn off the circuit board while the disk drive is spinning up. (Powering
up requires much more current than keeping it going.)

Is there anyone out there who has worked with Siders that can tell me
whether the relay is supposed to do that? If the problem is with the bad
relay, what is the best way to fix it?

--Dave "Software Engineer" Tribby