Video Corredions And Additional Information - HP 9000 300 Series Service Training

Video Corrections and Additional Information
52mb Hard Drive:
It
was stated in the video that the 52mb hard drive was only used in the Integrated
Controller. Wrong, it can be used on both controllers.
3.5" Floppy Drive Cables:
The 3.5" floppy drive's data connector is reversed from the other drives connectors. That
A
is why, on the Integrated controller's data cable harness, there are two connectors for the
center slot. They are keyed 180 out from one another. Also, the floppy has an adapter cable
that plugs in between the drive and the normal SCSI power cable. This is true on both the
Workstation and Integrated controllers.
Integrated Shipping Bracket Removal:
There is a shipping bracket on the rear of the Integrated models that needs to be removed
before installation. Use the four screws removed from the bracket to install the rear guards.
The guards are provided to protect the loopback hood and SCSI terminator.
Integrated Upgrades:
We said there would not be any upgrades on the Integrated Controller. Now it looks like there
will be at least memory upgrades. The workstation type memory will have a chapter added to
the existing installation guide for the A2200A. The PC type memory used on the MC68030
system boards, will have a chapter added in the SPU installation guide. And, after you go
through the disassembly portion of the video, you will have a good idea on how to install
them anyway.
System Board Controller Circuitry:
Keep in mind, that the controller circuitry for memory, LAN and SCSI is on the system
board. So when there is an error displayed, indicating bad memory, LAN or a disk drive, the
system board should also be suspect. Replace whatever assembly is easier to replace first,
which usually is not the system board.
Integrated Supplemental Disk:
There will be another Supplemental Disk for the Integrated Controllers, similar to the disk on
the R/332. There will be some touch routines, TSC code and graphics demos. Part Number,
of the new disk, will be A1301- 60905. They hope to have this available for first customer
shipments, end of September 1991.
Coprocessor Orientation:
The coprocessor's socket has the mating flat corner for chip orientation.
Tools:
We referenced a 6mm Nutdriver in the Video. It should be a 7mm.
Filter Wire Clip:
There is a spring wire clip that holds the filter in place on the Integrated controller. One end
is held in place by one of the screws holding the fan to the rear housing. The other end snaps
into place in the opposite corner of the fan area.
Video Corrections and Additional Information A·1