TM 11-5820-890-30-4
Section III. TROUBLESHOOTING PROCEDURES
Subject
Para
Page
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
10-2
Operational Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-6
10-2
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-7
10-7
10-5. GENERAL.
This section provides the troubleshooting procedures used to isolate a defective antenna base. There is no
troubleshooting information as the antenna base is a nonrepairable item.
10-6. OPERATiONAL CHECK.
The operational check provides a step-by-step procedure for evaluating an antenna base, If the operational
check is passed, the antenna base can be returned to service. lf it does not pass the test, the bad module or the
troubleshooting chart to be used will be identified. The troubleshooting procedures are in paragraph 10-7.
The operational check is divided into steps. Each step verifies a particular function. Follow the instruction in the
"Action" column. Check the response. If the response incorrect, proceed with the next lettered step. When a
Step has been completed, proceed with the next Step. A "No response" in the “Response” column means that
any response is not of interest.
The switch settings for the test equipment are given in the “EQUIPMENT PRESETS” section of each test setup
figure.
WARNING
Connect the test setups only when directed, and with the power supply set to OFF. The large
current capacity of the test power supply can cause personal injury. Verify the test setup before
turning the power supply ON.
10-2
