TM 11-5820-890-10-3
TROUBLESHOOTING PROCEDURES Continued
RADIO. Displays
PROCEDURES. Normal displays are not shown here; they are
ITEM
shown in the operating instructions in chapter 2. Do this proce-
dure if you have no trouble communicating in your net but the
RT display is not responding to keyboard actions.
manpack,
Vehicular
radio
CONTROL MONITOR. Initial setup and self-test
PROCEDURE. If CM is found to be faulty, you can still operate
ITEM
your radio. Set RT FCTN to SQ ON; then operate the RT using
the RT controls. When possible, get unit maintenance to check
CM.
CM, radio
a. Do Initial set up procedure.
•
If RT does not initially set up, troubleshoot for input/output
circuit and displays.
b. Do self-test procedure.
•
If test does not end with "Gd" (good) displayed on CHAN
and VAR displays of CM, refer to the display trouble-
shooting procedure.
Indicates fill is not accepted by RT.
Check fill device and procedures.
RT faulty. Get unit maintenance to
check RT. (The letter "n" represents
a numeral).
Indicates TRANSEC variable is need-
ed for FH operation. Load TRANSEC
variable.
Indicates FH sync time needs to be
be loaded to send ERF.
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