TM 5-5420-226-20-1
DETAILED TROUBLESHOOTING
PROCEDURE
Symptom-51.1
SUPPORT
SYSTEM - SMOKE GRENADE
LAUNCHER
Check harness for continuity between socket F
of connector at pushbutton unit and socket D of
connector at arenade control box
First Technician
(Operators
Station)
Set GRENADE
POWER switch OFF.
Set MASTER
BAITERY
switch OFF.
Disconnect
harness connector
from grenade
power
control box.
Set multimeter
to OHMS XI scale and zero
meter.
Connect red probe of meter to socket F of
harness connector
at pushbutton
unit.
Connect black probe of meter to socket D of
harness connector
at grenade power control
box.
Check if meter indicates continuity.
Does meter indicate continuity?
l
Connect harness connector
to pushbutton unit.
b
YES
l
Replacegrenade power
control box (page 18.1-2).
(Continued)
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18.1-6).
TA248706
4-554.18
Change 1