1257 User Manual
EADS North America Defense
Troubleshooting C-1
Test and Services, Inc.
©
200
Appendix C
Troubleshooting
How to Use this
Section
If you have difficulty using the 1257 Switching System, refer to
the
following
troubleshooting tables. If you are still unable to
resolve the problem, contact the EADS North America Defense
Test and Services Customer Support Department (refer to
Chapter 8, PRODUCT SUPPORT
).
Power-Up
PROBLEM
POSSIBLE CAUSES
WHAT TO DO
•
Not connected to proper
power source.
•
Make sure that the 1257 is
connected to a live power
source, using a functional power
cord. For input power
requirements, see
Chapter 2,
Getting Started
, under the
heading
Main AC Power
.
Unit does not turn on (fan not
running, blank display, and
no indicator lights).
•
Fuse missing, blown, or
incorrectly installed.
•
Check fuse, verifying that it has
the required capacity as marked
on the 1257 rear panel. Make
sure the fuse is properly
installed (see
Chapter 2,
Getting Started
, in
Figure 2-1,
Changing Fuse for Main AC
Power
).
Summary of Contents for 1257
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