TM
5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
SUPPORT
SYSTEM
- VEHICLE
LIGHTING
Symptom-57
OPERATOR’S
DOMELIGHT
WILL
NOT LIGHT.
1
Check
if NIGHT
VISION
indicator
lamp will light.
I
Technician
(Operator’s
Station)
l Set MASTER
BATTERY
switch
ON.
l Set NIGHT
VISION
switch
ON.
l Check if NIGHT
VISION
indicator
lamp
lights.
[
Does
NIGHT
VISION
indicator
lamp light?
(
-@-
M&TER
BATTERY
e
OFF
‘a
Ae)
*
NIGHT
VISION
b
ON
Q?
OFF
@
@
B O SELECTOR
aD
(MAST%
CONTROL
PANEL)
)
See Symptom
70
IR
PERISCOPES
WILL
NOT WORK
(NIGHT
VISION
INDICATOR
LAMP WILL
NOT LIGHT).
. .
TA107278
4-589
