TM 11-5820-890-10-3
CHAPTER 5
MAINTENANCE INSTRUCTIONS
PAGE
SECTION
I.
PMCS
............................................................................................................. 5-1
II.
Troubleshooting Procedures.................................................................................. 5-9
III.
Operator Maintenance ........................................................................................... 5-17
SCOPE
Chapter 5 contains maintenance instructions. Maintenance instructions include preventive maintenance checks and
services and troubleshooting information for the radio and other communications equipment as well as routine operator
checks and cleaning. Operational troubleshooting for the operator and the NCS can be found in their respective chapters.
SECTION I. PREVENTIVE MAINTENANCE CHECKS
AND SERVICES (PMCS)
ITEM
PAGE
Battery Physical Condition
............................................................................................................. 5-3
Battery Electrical Condition
............................................................................................................. 5-3
Receiver-Transmitter Self-Test .......................................................................................................... 5-4
Transmitter
............................................................................................................. 5-5
Mounting Adapter and Mounting Base (or power supply adapter and
single radio mount)
............................................................................................................. 5-5
Remote Operation
............................................................................................................. 5-6
Control-Monitor Self-Test
............................................................................................................. 5-6
Control-Monitor RT Function Control ................................................................................................. 5-7
Cables
............................................................................................................. 5-8
PMCS
PMCS TABLE. The PMCS table lists the checks required to keep your radio in good shape.
• The "when" column tells you when to do a check or service.
• The "procedure" column tells you how to do the check or service. Follow the instructions carefully.
• The "equipment is not ready/available if" column tells when and why your radio cannot be used. The terms
"ready/available" and "mission capable" refer to the same status: Equipment is on hand and is able to perform its
combat missions. (See DA Pam 738750.)
• Read the cautions and warnings in the front of this manual before doing PMCS.
• Make sure your radio is assembled and ready for your mission.
• If your radio fails to operate after performing a PMCS, do the troubleshooting procedures in section II of this
chapter. Report the problem and the actions you've taken on the proper form(s). See DA Pam 738750. If
performing PMCS and troubleshooting procedures do not solve the problem, have unit maintenance check your
radio.
5-1
