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 TM 11-5995-208-10
CHAPTER 3
OPERATOR MAINTENANCE
Page
Subject
Maintenance Procedure (General) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Troubleshooting Procedures (General) . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Section I TROUBLESHOOTING PROCEDURES
GENERAL
TELEPHONE
TEST SET
WARNING
When you are troubleshooting, do not open any cable connection.
Opening a connection can expose you to a fatal shock by high voltage.
But if you find it necessary to remove or replace a component or a
piece of cable in the system, use your order wire hookup and call MUX
equipment operators, Tell them to remove the power from the cable
hookup.
Troubleshooting the twin coax cable assembly is limited to testing a PCM
cable hookup of twin coax cable assemblies, twin coax adapter cables, and
unattended repeaters. Troubleshooting is performed using the telephone test
set. Instructions in TM 11-6625-648-12 will tell you how to use the telephone
test set to:
Locate faults in a PCM cable system.
3-1
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