Sun Microsystems SPARCstation 20, Service Manual

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Chapter 8 Removing and Installing Subassemblies 91
8. Remove the SunCD 2Plus CD-ROM drive, if installed.
See “Removing a CD-ROM Drive” on page 123.
9. Disconnect the SCSI data connector (P3) from the SCSI backplane.
10. Free the SCSI data cable from the metal cable guides on the chassis bottom and
from the plastic hooks on the system board card guide.
11. Remove the SCSI data cable.
Installing the SCSI Data Cable
(SunCD 2Plus Drive-Type Chassis)
Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing it on any surface.
Note –
Tape or tie-wrap markers on internal cables help in properly routing the
cables through the metal cable guides. The part of each cable with a marker is to be
visible between the metal cable guides on the chassis bottom.
1. Route the SCSI data cable as follows (
FIGURE 8-32
):
a. Route the SCSI connectors (P3 and P1) through the drive bracket sheetmetal
opening.
b. Position the SCSI cable marker under the metal cable guide; route the SCSI
data cable through the chassis metal guides and the system board guide plastic
hooks.