Contents v
4.7.4.4 Versions Command 4–14
4.7.4.5 What Command 4–15
4.7.4.6 Printenvs Command 4–15
4.7.4.7 Setenv Command 4–16
4.7.4.8 Exit Command 4–16
4.7.5 Error Reporting in OpenBoot Diagnostics 4–16
4.7.6 Exiting OpenBoot Diagnostics and Resetting the OpenBoot PROM
settings 4–17
5. Preparing for Component Removal and Replacement 5–1
5.1 Safety Requirements 5–1
5.2 Safety Symbols 5–2
5.3 Safety Precautions 5–2
5.3.1 Modification to Equipment 5–2
5.3.2 Placement of a Sun Product 5–3
5.3.3 Power Cord Connection 5–3
5.3.4 Electrostatic Discharge 5–3
5.3.5 Lithium Battery 5–4
5.4 Tools Required 5–4
5.5 Powering Off the System 5–4
5.6 Removing the System Cover 5–6
5.7 Attaching the Antistatic Wrist Strap 5–6
6. Removing and Replacing Major Subassemblies 6–1
6.1 Power Supply 6–1
6.1.1 Removing the Power Supply 6–1
6.1.2 Replacing the Power Supply 6–2
6.2 Cable Assemblies 6–3
6.2.1 Removing the Diskette Drive Data Cable Assembly 6–3
6.2.2 Replacing the Diskette Drive Data Cable Assembly 6–4
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