TM 11-5820-890-20-1
STEPS TO PERFORM
7.5
Set RT CHAN to 3
Press PTT and test set
Push-To-Test
CHECKS TO MAKE
N/A
Test set reads 30 W or greater
FWD PWR?
ACTIONS TO TAKE
N/A
YES:
Go to Step 7.6
NO:
RT-A; Go to TS Chart 17
RT- B; Go to TS Chart 18
7.6
Press PTT and count into HS
Sidetone heard at HS?
YES: Continue 4
NO:
Replace PA
SIG display reads 6?
YES:
Go to STEP 8
NO:
Go to TS Chart 19
*
Skip this STEP if the tactical situation or your unit SOP precludes transmitting.
3.1.
OPERATIONAL CHECK. Continued
STEP 8. LS-671 CHECKS:
8.1
Set test set MODE to FWD PWR
Connect HS to LS-671 J2
Push LS-671 volume IN
Set RT
STEPS TO PERFORM
CHECKS TO MAKE
ACTIONS TO TAKE
N/A
N/A
N/A
N/A
N/A
N/A
COMSEC to CT
N/A
N/A
FCTN to TST
N/A
N/A
MODE to SC
N/A
N/A
RF PWR to HI
N/A
N/A
8.2
Check for beeps
Beeps heard at HS only?
YES:
Go to Step 8.3
NO: Replace LS-671
8.3 Set RT
COMSEC to PT
FCTN to SQ ON
Press PTT
N/A
N/A
RT SIG display reads 4 or more?
N/A
N/A
YES:
Go to Step 8.4
NO:
Go to TS Chart 20
8.4
Pull LS-671 volume OUT
Press PTT and count into HS
N/A
Sidetone heard at HS?
N/A
YES:
Continue ¯
NO:
Go to TS Chart 21
Sidetone heard at LS-671?
YES: Replace LS-671
NO:
End of Ooerational Check*
*
Return HS to operational position, if required.
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