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positions of the disk drives.
with the component side of the·
controller board facing toward you, the ribbon cable should be
plugged into the controller board so that the cable extends away
from you.
If the cable comes out of the plug toward you then it
is plugged in wrong.
The drive edge connector plugs should be
plugged into position Jl on the drive PC board such that the
cable going toward the controller runs out the bottom of the
plug.
The cable should be routed around the power PC board by
making a flat 90 degree fold in the cable immediately below the
edge connector plug.
Some tape should be applied to the back of
the power PC board to avoid abrasion of the ribbon cable where it
touches the power PC board.
CABINET ASSEMBLY
1. Mount the four rubber stick-on feet at the four corners of the
bottom of the cabinet.
2.
Hount the disk drive (with power PC board if required) to the
bottom plate of the cabinet with the four flat head screws.
The MDS-PS power supply, if used, should be mounted into the
cabinet.
3. The cabinet cover is secured with six pan head 6-32 screws,
two on each side and two in the back.
INTEGRATED SYSTEM CHECK-OUT
All components of the system should now be assembled and
ready to be put together.
1. Turn off the computer power if it is on and plug the MDS
controller board into the computer and connect the ribbon
cable between the controller and disk drives as directed in
the Cable Configuration section.
2. Turn on the power and check that the power at the drive power
plug is +5 and +12 volts at the proper pins.
Then turn off
the power and plug the power plug into connector J2 on the
drive PC board.
3. Turn on the computer and disk drive power and then enter and
run the following program at 2000(hex) in RAM.
The program is
valid only for the standard controller address.
The program
should cause the motors on all the drives to turn on.
The
automatic motor turn-off should cause the motors to stop in
25
about
5
seconds.
2000
3A 80 EB
2003
C3 03 20
LOA EB8e!
JMP 2003
North Star MICRO-DISK System
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