TM 5-5420-226-20-1
Symptom-49
DETAILED
TROUBLESHOOTING
PROCEDURE
T
SUPPORT
SYSTEM
- COMMUNICATIONS
(Continued)
~
Check if static
Is caused
by ventilating
blower
I
Second Technician
(Operator’s
Station)
I
I
l Set VENTILATOR
switch OFF (TM 5-5420-226-
1
I
10)
I
I
First Technician
(Commander’s
Station)
l Listen for static in radio helmet.
I
I
Did static
stop when VENTIUiTOR
switch
was shut
1
)
l Stop engine.
l Turn off radio set (TM 5-
5420-226-10).
.
Set PERSONNEL HEATER
Hi/LO
switch
OFF.
l Set NIGHT VISION switch
OFF.
l Replace ventilating blower
assembly
(TM 5-5420-227-24)
TA107219
4-530
