Audience
This document aids service personnel in testing and repairing C115 telephones Service personnel should be
familiar with electronic assembly, testing, and troubleshooting methods, and with the operation and use of associated test
equipment.
Scope
This manual provides basic information relating to C115 telephones, and also to provide procedures and processes
for repairing the units at Level 1 and 2 service centers including:
Unit swap out
Repairing of mechanical faults
Basic modular troubleshooting•
Testing and verification of unit functionality
Initiate warranty claims and send faulty modules to Level 3 or 4 repair centers.
ConventionsS
Special characters and typefaces, listed and described below, are used in this publication to emphasize certain types
of information.
Emphasizes additional information pertinent to the subject matter.Caution:
Emphasizes information about actions which may result in equipment damage.Warning: Emphasizes information about
actions which may result in personal injury.
Keys to be pressed are represented graphically. For example, instead of “Press the Menu
Key”, you will see “Press M”.Information from a screen is shown in text as similar as possible to what appears in the display. For example,
ALERTS or ALERTS.Information that you need to type is printed in boldface type.
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