Storage Devices 9-25
9
9.5.2 Replacing the Peripherals DC Power Harness
Markers on the DC power harness will help you to route the harness through
the cable clips. The markers are either tie-wrap cords or colored tape affixed to
each cable.
When properly installed, the two colored tape marks on the P1 (power supply)
harness should straddle the metal cable clips on the chassis wall that is closest
to the system board. The P2 (CD-ROM drive) harness connects to the
CD-ROM DC power connector. The second colored tape mark (farthest from
the P3 connector) on the P3 (SCSI backplane) harness should be centered
under the second plastic cable guide clip. The P4 (diskette drive) harness
should be threaded through the chassis wall with the diskette data cable, and
secured under the first metal cable clip on the chassis floor.
1. Route the power supply harness (labeled P1) through the metal cable clips
on the chassis wall.
See Figure 9-21. The two colored tape marks on the DC power harness
should straddle the cable clips.
2. Route the SCSI backplane DC power harness (labeled P3) under the
plastic cable clips on the card guide to the SCSI backplane.
See Figure 9-21.
3. Thread the diskette drive DC power harness (labeled P4) through the hole
in the chassis wall with the diskette data cable.
See Figure 9-22.
4. Route the SCSI data cable (labeled P1) between the plastic clips at the rear
of the card guide and connect it to the SCSI backplane.
See Figure 9-21.
5. Connect the DC power harness (labeled P3) to the SCSI backplane.
See Figure 9-21.
6. Reinstall the power supply.
See Section 8.1.2, “Replacing the Power Supply.”
7. Connect the DC power harness (labeled P4) to the diskette drive
(if present).
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