TM 11-5820-890-20-1
2.2.
OPERATIONAL CHECK. Continued
STEP 3. RT SELF-TEST:
STEPS TO PERFORM
3.1
Set RT
COMSEC to CT
FCTN to TST
CHECKS TO MAKE
N/A
RT passes self-test?
ACTIONS TO TAKE
N/A
YES:
Go to Step 3.2
NO:
Disconnect antenna and HS
from RT, rerun self-test
RT then passes self-test?
YES: Reconnect HS and
go to Step 3.2
NO: Replace RT
3.2 Set RT:
FCTN to LD
CHAN to MAN
DATA to OFF
N/A
N/A
RT display reads 30000?
N/A
N/A
YES: Continue 1
NO: Replace RT
COMSEC alarm sounds?
YES:
Go to Step 3.3
(RT-1523/A/B/D)
NO: Replace RT
Steady tone heard?
YES:
Go to STEP 4
(RT-1523C/E)
NO: Replace RT
3.3
Press PTT twice
Steady tone is heard
YES:
Go to STEP 4
NO: Replace RT
STEP 4. LOAD CHECKS:
STEPS TO PERFORM
CHECKS TO MAKE
ACTIONS TO TAKE
4.1
Load RT with SC frequencies:
SC frequencies load properly?
YES:
Go to Step 4.2
Chan 1:
41000
NO: Replace RT
Chan 2:
54000
Chan 3:
75000
4.2
Load RT with COMSEC and
RT accepts fill?
YES:
Go to Step 4.3
FH data.* Note: Set RT controls
NO:
Go to TS Chart 1
to CT, LD, FH, MAN, and DATA
OFF (Clear COMSEC alarm by
pressing PTT twice, if required)
4.3
Set RT to STBY
RT shuts down properly?
YES:
Go to Step 4.4
NO:
Replace RT
4.4
Remove Main Battery
N/A
N/A
Replace after 1 min.
N/A
N/A
Set FCTN to SQ ON
RT retains COMSEC, FH, and SC
YES:
Go to Step 4.5
data in both FH and SC modes?
NO:
Replace RT
4.5
Set RT FCTN to LD
N/A
N/A
Load Battery Life Condition
Battery Life Condition loads properly?
YES:
Go to STEP 5
NO:
Replace RT
If using an Automated Net Control Device (ANCD), follow ICOM Fill procedure to load COMSEC keys and
FH data in all 6 channels. Otherwise, load COMSEC keys and FH data in Channels 1, 2, and 3.
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