Troubleshooting; Before You Start - DEC VR297 User Manual

This chapter describes how to troubleshoot VR297 monitor problems
by using a set of flowcharts. Each flowchart is for a different type of
problem. The flowcharts guide you through the steps to isolate the cause
of a problem.

1.1 Before You Start

This section covers the basic steps in troubleshooting any VR297 monitor
problem. These steps will help you do your job in the field more easily and
effectively. Section 1.2 provides the actual flowcharts for troubleshooting
specific problems.
The flowcharts instruct you when to perform checks on the monitor,
replace parts, or make adjustments. If you complete all the steps in a
flowchart and the problem still exists, replace the whole monitor.
• If you are going to service a display-quality problem, ask the customer
to let the monitor warm up for at least 20 minutes before you arrive,
if possible.
• Always troubleshoot the most obvious symptom, but remember that
one symptom may indicate multiple failures. The flowcharts assume
that only one assembly has failed or only one problem exists.

Troubleshooting

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