TM 11-5820-890-30-4
6-8.
INTERFACE FAULTS AND ERRORS.
When the control-monitor requests a status update, the other unit responds. The RT echoes the control signals.
If the RT does not respond, the control-monitor will display “F7”. If a second control-monitor is involved and it
does not respond, “Fr” for failed response is displayed.
If the operator makes an error, “Er” will be displayed. This can happen several ways. If no radio is connected to
the radio 3 channel and an update request is made with the RADIO switch set to 3, “Er” will be displayed.
A blinking CHAN display indicates a problem at the RT. This could be caused by selecting an unloaded channel.
Section Il. REPAIR PARTS,
AND SUPPORT
6-9. COMMON TOOLS AND EQUIPMENT.
SPECIAL TOOLS, TMDE,
EQUIPMENT
For authorized common tools and equipment, refer to the Modified Table of Organization and Equipment (MTOE)
applicable to your unit.
6-10. SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT.
For the TMDE and support equipment required for DS, see the maintenance allocation chart. It is Appendix B in
TM 11-5820-890-20-1.
6-11. 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
Section
Subject
General . . . . . . . . . . . . . . . . . . . . . . .
Operational Check
. . . . . . . .
Troubleshooting
. . . . . . . . . . . . .
Test Precautions and Notes . . . . . .
Explanation of Symbols and Notes .
Troubleshooting Flowcharts . . . . . . .
6-12. GENERAL.
equipment.
Ill. TROUBLESHOOTING
This section provides the troubleshooting procedures used to
PROCEDURES
Para
Page
. . . . . . .. . . . . . . . . . . . . . . . . . . 6-12
6-10
.. . . . . . .. . . . . . . . . . . .. . .. . . . . . . . 6-13
6-11
.. . . . . . . . . . .. . . . . . . . . . . . . . . .. . 6-14
6-17
.. . . . . . . . . . . .. . . . . . . . . . . . . 6-15
6-17
.. . . . .. . . . . . . . . . . . . . . . . . . .
6-16
6-18
.. . . .. . . . . . . . . . . . . . . . . . . . . . 6-17
6-18
isolate a defective control-monitor. The
troubleshooting information is presented in the form of flowcharts. They systematically get from a symptom to
the bad module.
6-10
