Sun Microsystems Sun Workstation 100U System Manager's Manual page 36

Sun 100/150 Installation Manual
Subsystem Set-Up
3.3. M2351 (Fujitsu 474-MByte) Disk
The 474-MByte disk subsystem is shipped in a single carton, along with its cables. The drive
itself is shipped in nested boxes, and wrapped in a polyethylene bag. To unpack, mount, and
cable up the M2351, follow the procedures below.
We recommend that you have the Fujitsu MS951A/ AF Mini-Di,1e Drive CE Manual close at
hand as you follow the instructions; it contains essential information.
1.
Op~n
the 474-MByte disk's outer shipping carton by cutting the binding straps with a knife
or scissors, and opening the flaps.
2. When the box flaps are opened, the shock absorbers surrounding the internal carton are
exposed. Remove the shock absorbers, and have AT LEAST two people lift out the inter-
nal carton.
3. Cut open the internal carton to ex pose the subsystem itself, wrapped in a polyethylene bag.
Remove the two nylon straps.
4. With another person, lift the unit out of its bottom pad. Grasp the unit at the bottom to
avoid damage to the sub-assemblies.
We recommend that you save the salvageable shipping carton and packing material for
future use in case the product must be reshipped.
5. Remove the cover on the drive. Loosen the two Phillips screws that hold the card cage
upright, and gently pivot and lift the card cage to a horizontal position to expose the
'Vibration Preventative Block' (a piece of styrofoam) under the disk enclosure housing.
Remove the 'VPB'. Return the card cage to its upright position, and tighten the screws.
6. Locate the rotary actuator ('VCM') at the rear of the drive, near the cables - there is a
small label which says 'LOCK ......... FREE'; to the right of this label as you look at the
back of the drive is a Phillips screw, Loosen the screw and rotate the locking lever to the
unlocked' position; tighten the screw in this second hole. AL WAYS lock the rotary actua-
tor before moving the drive. For an illustration, see the Fujitsu manual, section 2.3.
CAUTION:
Turn oft' the power and disconnect the power cord before opening up the Sun
Workstation's enclosure, doing cabling of any sort, or altering peripheral/board configurations.
7.
As
you stand at the rear of the drive, you'll see a small circuit board on your left-hand side.
Make sure that the line-termination circuit board has its component-side facing away from
you, and is securely seated into 'CNP42' on this board ('CNP42' is located next to
'CNP41', the 60-pin connector for the control cable). The grounding strap must be fastened
to 'TBI' in the center of the circuit board. 'TBI' is a small silver square topped by a Phil-
lips screw. DO NOT connect the grounding strap to 'TRMI' or 'TRM2'. The line-
termination board is required only on the lad disk drive in a daisy-chain configuration.
8. For mounting instructions, see the Fujitsu manual, section 2.4.
9.
The M2351 is connected to the card cage backpanel via two flat ribbon cables. The wider
of the cables is a 60-pin control cable. Plug the control cable into the socket entitled
'DISK COMMAND'
on the backpanel. The narrower cable is the disk data cable, and must be
plugged into the socket labelled 'DISK DATA #x' on the backpanel, where
%
is 0 through 3.
The first disk drive must be cabled to connector
'DISK DATA
#0'; the second should be
cable,'J to
'DISK DATA fl'.
Revision H of 12 March 1984
3-7