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Removing and replacing backplanes and cables, 1 how to remove the ultrascsi backplane, 1 before you begin – Sun Microsystems 220R User Manual

Page 141

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CHAPTER

5

Removing and Replacing Backplanes
and Cables

This chapter describes how to remove and replace backplanes and cables within the
system. For a list of part numbers for field-replaceable units and optional equipment,
see Appendix D.

The following tasks are covered in this chapter:

4

Section 5.1 “How to Remove the UltraSCSI Backplane” on page 141

4

Section 5.2 “How to Replace the UltraSCSI Backplane” on page 144

4

Section 5.3 “How to Remove the Power Distribution Board” on page 147

4

Section 5.4 “How to Replace the Power Distribution Board” on page 151

4

Section 5.5 “How to Connect the System Cables” on page 155

5.1

How to Remove the UltraSCSI
Backplane

5.1.1

Before You Begin

Complete these tasks:

4

Section 4.1 “How to Remove a Disk Drive” on page 127

4

Section 2.1 “How to Power Off the System” on page 54

4

Section 2.4 “How to Position the System for Service” on page 60

4

Section 2.6 “How to Remove the System Cover” on page 65

141