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TM 9-2320-364-20-2
2-1145
(1) Connect positive (+) multimeter lead
to wire 1872 at input side of IGNITION
circuit breaker CB10.
(2) Connect negative (–) multimeter lead
to a known good ground.
(3) Turn ON ENGINE switch
(TM 9-2320-364-10).
(a) If 22 to 28 vdc are not present,
turn OFF ENGINE switch and
repair wire 1872 (see schematic
Fig 2-25) or notify DS
Maintenance.
(b) If 22 to 28 vdc are present, wire
1872 is OK.
(4) Turn OFF ENGINE switch.
VOLTAGE TEST
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.
Circuit breakers CB5, CB6, CB12, CB20, CB22, CB23 and relays R3, R13 - R19, R26, R28, R32, R33
are always electrically hot and can cause severe injury to personnel. Care must be exercised when
working under the electrical circuit board cover.
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