TM 5-5420-228-24
--
Symptom-8
DETAILED
TROUBLESHOOTING
PROCEDURE
T
SUPPORT
SYSTEM
- VENTILATION
(Continued)
—
L-
Check interconnecting
box cable for electrical power.
Technician
(Operator’s
Station)
●
Set
MASTER
BATTERY
switch
OFF.
.
Reconnect
CKT 159 harness
connector
to
interconnecting
box.
.
Disconnect
interconnecting
box cable
from
interconnecting
box.
.
Connect
red
probe
of meter
to center
contact
of
interconnecting
box cable
and
black
probe
to ground.
.
Set
MASTER
BA’M’ERY switch
ON.
Q
Check if meter indicates
18
to
30 volts dc.
/
Does
meter indicate 18 to 30 volts
dc?
m
I
r
1
w
,-
Y
O:@:
z -~
;:,’”
-.
~o
-n
11
TO
VEHICLE
GROUND
TA251753
Repair electrical harness inside
interconnecting box.
0
2-105