TM
5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-70
SUPPORT
SYSTEM
- PERISCOPES
T
(Continued)
$$
0:(
:$:
m-s
*O,
-F,W*
:::h’-
‘Check
master
control
panel accessories
harness
for
continuity
between
NIGHT VISION
circuit breaker
(CKT 38-516)
and NIGHT
VISION
switch
(CKT 516).
Technician
(Operator’s
Station)
l
l
l
l
Disconnect
master
control
panel
accessories
harness
lead (CKT
38-5 16) from
night
vision circuit
breaker.
Connect
black
probe
of meter
to accessories
harness
lead (CKT
5 16) at NIGHT
VISION
switch
connector
which
does not feed to the NIGHT
VISION
indicator
lamp.
Connect
red probe of meter
to accessories
harness
lead
(CKT
38-5 16) at circuit
breaker.
Check
if meter
indicates
continuity.
i
:KT 516)’ \
I u
w
>
~-‘
Does meter
indicate
continuity?
)
/
/
CKT
NIGHT VISION
38-516
CIRCUIT
BREAKER
NIGHT VISION
INDICATOR
LAMP
Replace
master
control
panel
accessories
harness
(page
10-91).
-.
,
TA107364
4-675
