TM
5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-70
T
SUPPORT
SYSTEM
- PERISCOPES
(Continued)
‘Check
master
control
panel accessories
harness
(CKT 516) for continuity
between
panel connector
and
NIGHT VISION
switch.
Technician
(Operator’s
Station)
l
l
l
l
Disconnect
basket-control
panel
accessories
harness
connector
at master
control
panel.
Connect
red probe of meter
to contact
A (CKT
5 16) of
master
control
panel
accessories
harness
connector,
Connect
black
probe
of meter
to master
control
panel
accessories
harness
connector
(CKT
5 16) at N’IGHT
VISION
switch
which
feeds to the NIGHT
VIS1ON
indicator
lamp.
Check
if meter
indicates
continuity.
Does meter
indicate
continuity?
‘
\,%
MASTER
CONTROL
PANEL
\
~o”’’o&)
I
ACCESSORIES
\w
HARNESS
\ NIGHT VISION
CONNECTOR
INDICATOR
(CKT 516)
LAMP
Replace
master
control
panel
accessories
harness
(page
10-91).
TA107365
4-676
