TM 11-5820-890-10-1
TROUBLESHOOTING PROCEDURES Continued
RADIO. Displays
lTEM
PROCEDURES. Normal displays are not shown here: they are
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
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).
Required lockout set(s) missing. RT
cannot transmit or receive on hopset
without loading lockout set(s).
Indicates FH sync time needs to be
be loaded to send ERF.
Frequency management error re-
sulting from attempt to load wrong
type of hopset.
CONTROL MONITOR. Initial setup and self-test
ITEM
PROCEDURE. If CM is found to be faulty, you can still operate
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.
l If RT does not initially set up, troubleshoot for input/output
circuit and displays.
b. Do self-test procedure.
l If test does not end with ”Gd” (good) displayed on CHAN
and VAR displays of CM, refer to the display trouble-
shooting procedure.
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