TM 11-5820-890-30-4
Section Il. REPAIR PARTS, SPECIAL TOOLS, TMDE,
AND SUPPORT EQUIPMENT
Subject
Para
Page
Common Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
5-4
Special Tools, TMDE, and Support Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
5-4
Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
5-4
5-6.
COMMON TOOLS AND EQUIPMENT.
For authorized common tools and equipment, refer to the Modified Table of Organization and Equipment (MTOE)
applicable to your unit.
5-7.
SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT.
For the TMDE and support equipment required for DS, seethe maintenance allocation chart. lt is Appendix Bin
TM 11-5820-890-20-1.
5-8.
REPAIR PARTS.
Repair parts are listed and illustrated in the repair parts and special tools list (TM 11-5820-890-30P-1) covering
direct support maintenance for this equipment.
Section Ill. TROUBLESHOOTING PROCEDURES
Subject
Para
Page
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
5-4
Operational Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5-4
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11
5-12
Test Precautions and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
5-12
Explanation of Symbols and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13
5-13
Troubleshooting Flowcharts.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
5-13
5-9.
GENERAL.
This section provides the troubleshooting procedures used to isolate a defective power amplifier. The
troubleshooting information is presented in the form of flowcharts. They systematically get from a symptom to
the bad module.
5-10. OPERATIONAL CHECK.
The operational check provides a step-by-step procedure for evaluating a power amplifier. If the operational
check is passed, the power amplifier can be returned to service. If 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 5-11.
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. Set the test equipment switches to the indicated presets and then verify the settings. lf a test response is
incorrect, check the equipment settings and the test adapter cabling before going to a troubleshooting charter
replacing a bad module.
5-4
