1 Dec
1999
1 Dec
'99
5:02 a.m.
On Dec 1, 17:13, Peter Joules wrote:
The motor doesn't move so plan B
I have taken a known working drive out of a PCW and
that doesn't spin up
either. In both cases the LED which looks through the hole in the
middle of the disk comes on and the LED on the front flashes briefly as
the machine tries to access the drive.
I suppose the next step is to check the voltages on the supply. There
are 4 wires 1 red, one orange, and 2 black. Do you know what voltages
are supposed to be on each, and relative to what?
Sounds like the +5V which powers the drive logic is OK, and the +12V for
the motor is AWOL. The black wires are the 0V returns for the two
supplies, and IIRC red is +5V and orange is +12V.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York