North Star DIMENSION Service Manual page 141

DIAGNOSTICS
(cont.) Service Diskette #2
Using Fixed The following procedure may facilitate testing, formatting
Disk Drive
and labeling a fixed disk drive that is not mounted in a
Extension
DIMENSION central module. The procedure makes use of
Cables the three fixed disk drive extension cables specified in the
beginning of this chapter.
Procedure :
Fixed Disk Drive Extension Cable Installation
1. Detach the 20-pin (signal cable) connector from location J12 on the
central board.
2. Detach the 34-pin (control cable) connector from location J13 on the
central board.
3. Detach the 4-wire (DC power) connector from the back of the
mounted fixed disk drive.
4. Attach the 20-wire (signal) extension cable to location J12 on the
central board. The red stripe on the ribbon cable must be facing the
power supply side of the central module.
5. Attach the 34-wire (control) extension cable to location J13 on the
central board. The red stripe on the ribbon cable must be facing the
power supply side of the central module.
6. Attach the 4-wire (DC power) extension cable to the fixed disk DC
power cable.
DIMENSION Service Manual 3-29