Sun Microsystems SPARCstation 20, Service Manual

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Chapter 8 Removing and Installing Subassemblies 97
.
1. Detach the wrist strap and replace the cover.
See Chapter 7.
2. Power on the system.
See “Turning On the Power” on page 47.
DC Power Harness
The SPARCstation 20 system is configured with one of two chassis types:
■
A chassis that supports the SunCD 2Plus drive (1-inch drive)
■
A chassis that supports the SunCD 4 drive (1.6-inch drive)
Removing and installing the DC power harness varies depending on the chassis. The
following sections provide DC power harness removal and installation for each
chassis type.
Removing the DC Power Harness (SunCD 2Plus
Drive-Type Chassis)
1. Remove power from the system.
See “Removing Power from the System” on page 45.
2. Remove the cover.
See “Removing the Cover” on page 49.
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.
3. Attach a wrist strap to the top metal edge of the system back panel (
FIGURE 8-35
).