Service manual

68 VAXstation 3100 (Model 76) System
9. Reinstall the drive plate and install all the cables in the system box.
10. Reinstall the system box cover.
11. Reinstall all the cables and terminators to the rear of the box.
4.2.9 Internal SCSI Bus Data Cable Removal
To remove the internal SCSI bus data cable, remove the system box cover
(refer to Section 4.2.1 and Figure 4–27) and then:
Disconnect the SCSI bus data cable from the system module.
If you have an RX23 disk drive, disconnect the SCSI bus data cable
from its drive module.
Disconnect the SCSI bus data cable from all the hard drives. Note
that if you remove the drives from the drive plate, it is easier to
disconnect the cable.
Remove the end of the SCSI bus data cable from the Velcro at the
front of the drive plate by lifting the cable straight up. Then remove
the terminator from the cable.
Remove the SCSI/FDI module.
Cut the tie wrap that holds the cable and the ferrite core on the drive.
Remove the two screws that hold the cable to the drive plate at the
external SCSI port.
Lift the cable out of the hole in the drive plate and away from the
external SCSI port.
CAUTION
To prevent possible damage to the RX23 SCSI bus data cable do
not place cable across the SCSI/FDI module connector tabs.
Reverse this removal procedure to reinstall the internal SCSI bus data
cable. Ensure that you replace the tie wrap and the internal terminator
(refer to Figure 4–27).