TM 11-5820-890-20-1
STEP 9. RCU/RT SELF-TEST:
STEPS TO PERFORM
CHECKS TO MAKE
ACTIONS TO TAKE
9.1
Configure SIP/ASIP RT (RCU)
N/A
N/A
and remoted RT for RCU op-
erations
9.2 Set RCU FCTN to TST
RCU display reads GOOD for
RCU self-test?
RCU display then reads OPEN?
YES: Continue ¯
NO:
Replace RCU
YES:
Go to TS Chart 23
NO: Continue ¯
9.3 Set RCU:
FCTN to LD
MODE to SC
RCU display reads GOOD for
YES:
Go to STEP 4
RT self-test?
NO:
Replace RT
N/A
N/A
N/A
N/A
9.4
RCU: Load SC frequencies:
CHAN 1: 41000
CHAN 2: 54000
CHAN 3: 75000
9.5
Set RT:
FCTN to LD
MODE to SC
N/A
N/A
N/A
N/A
N/A
NIA
SC frequencies load in RT?
YES: Continue ¯
NO:
Go to TS Chart 2 4
9.6 Set RT FCTN to REM
9.7 RCU: Press BATT/CALL
pushbutton twice
N/A
RCU display reads (RT XX]?
N/A
YES:
Go to STEP 9.8
NO: Replace RCU
9.8 Set RCU:
FCTN to REM
COMSEC to PT
N/A
N/A
N/A
N/A
9.9 RCU: Press BATT/CALL
and PTT, and release
9.10 RCU: Press PTT and count
into HS
RCU display reads CALL?
Voice heard at AT?
YES:
Go to Step 9.10
NO:
Go to TS Chart 25
YES:
Go to Step 9.11
NO:
Go to TS Chart 26
9.11 RT: Press BATT/CALL
and PTT, and release
RT display reads CALL?
YES:
Go to Step 9.12
NO:
Go to TS Chart 27
9.12 RT: Press PTT and count
into HS
9.13 RCU: Press BAT-T/CALL
and PTT, and release
Voice heard at RCU?
RCU display reads CALL?
YES:
Go to Step 9.13
NO:
Go to TS Chart 28
YES:
End of RCU Check
NO:
Go to TS Chart 25
(End of Operational Check for Vehicular Radios; See TS Chart 22
if having trouble with transmitting / receiving data devices.)
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