Operator`s manual

Chapter 3

Maintenance

3.1 Troubleshooting

Complete procedures for troubleshooting the Rack-Mountable VAX 4000

Model 500 computer system can be found by referring to VAX 4000 Model

500 Installation manual.

3.2 Removal/Replacement Procedures

WARNING

Whenever performing any removal or replacement pro-

cedure, ensure that the main ON/OFF power switch is

OFF and that the power cord is disconnected from the

wall receptacle.

This section describes the procedures for removing and replacing the

ﬁeld replaceable units (FRUs) unique to the Rack-Mountable VAX 4000

Model 500 computer system. These FRUs and their part numbers are:

• ON/OFF Switch Assembly (P/N 70-28603-02)

• Storage Backplane Assembly (P/N 70-28602-02)

• Power Card Assembly (P/N 70-28216-02)

• Fans (P/N 70-26702-01)

• Equipment Slides (P/N 12-34397-01)

Maintenance 3–1