Troubleshooting By Visual Inspection; Chapter Overview - Digital Equipment 300 Series AXP Reference Manual

Troubleshooting by Visual Inspection

Chapter Overview

Introduction
Before You
Begin
Though your DEC 3000 Model 300 series system is a high-
quality, thoroughly tested product, it is also an electrical device
that may on occasion exhibit a problem. The tables in this
chapter can help you quickly identify the problem with a visual
check, and possibly fix the problem. If you cannot identify the
problem using these tables, try the more advanced procedures
described in Chapter 8.
This chapter also describes how to clean the system.
Before you proceed with this chapter:
1. Verify the problem as follows:
a. Turn off all expansion boxes.
b. Turn off the monitor and all peripheral devices, such as
printers and modems.
c. Turn off the system unit.
d. Check that all cables and cords are correctly connected at
both ends.
e. Turn the equipment back on in the following order:
1. Any storage expansion box
2. Printer
3. Monitor
4. System unit
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