ATN NVM14 - Manual (Page 52)

8
TA
B
L
E
6
.2
O
p
E
R
A
T
O
R
T
R
O
U
B
L
E
S
H
O
O
T
IN
G
F
O
R
A
T
N
N
V
M
-1
4
M
al
fu
n
ct
io
n
Te
st
o
r
in
sp
ec
ti
o
n
C
o
rr
ec
ti
ve
A
ct
io
n
1.
M
o
no
cu
la
r f
ai
ls
to
ac
tiv
at
e.
V
is
ua
l.
C
he
ck
fo
r d
ef
e
ct
iv
e,
m
is
si
ng
o
r i
m
pr
o
p
-
er
ly
in
st
al
le
d
ba
tt
er
ie
s.
Tu
rn
s
w
itc
h
to
O
F
F
p
os
iti
o
n
an
d
th
en
O
N
.
R
e
pl
ac
e
ba
tt
er
ie
s
or
in
st
al
l c
or
re
ct
ly
.
2.
IR
il
lu
m
in
at
or
fa
ils
to
a
ct
iv
at
e.
In
a
d
ar
k
lo
ca
tio
n
w
ith
s
ys
te
m
tu
rn
e
d
o
n,
ac
tiv
at
e
IR
.
V
is
ua
lly
c
he
ck
IR
il
lu
m
in
at
or
o
p
er
at
io
n
; s
ce
ne
s
ho
ul
d
br
ig
ht
en
.
If
IR
il
lu
m
in
at
or
fa
ils
to
a
ct
iv
at
e,
re
fe
r t
o
hi
g
he
r l
ev
el
o
f m
ai
nt
en
an
ce
.
3.
IR
in
d
ic
at
or
fa
ils
to
a
ct
iv
at
e.
V
is
ua
l.
R
ef
er
to
h
ig
he
r l
ev
el
o
f m
ai
nt
en
an
ce
.
4.
Po
or
im
ag
e
qu
al
ity
•
C
he
ck
o
bj
e
ct
iv
e
le
ns
o
r e
y
pi
e
ce
fo
cu
s.
•
C
he
ck
fo
r f
o
g
g
in
g
or
d
ir
t o
n
le
ns
.
•R
ef
o
cu
s.
•C
le
an
le
ns
s
ur
fa
ce
.
• I
f i
m
ag
e
qu
al
ity
is
s
til
l p
o
or
, r
ef
er
to
hi
g
he
r l
ev
el
o
f m
ai
nt
en
an
ce
.
5.
L
ig
ht
v
is
ib
le
ar
ou
nd
e
ye
cu
p
•
C
he
ck
e
ye
-r
el
ie
f d
is
ta
n
ce
.
•
C
he
ck
e
ye
cu
p
fo
r r
es
ili
en
cy
.
• R
ea
d
ju
st
fo
r p
ro
p
er
e
ye
-r
el
ie
f d
is
ta
n
ce
.
• I
f e
ye
cu
p
is
d
ef
e
ct
iv
e,
re
fe
r t
o
hi
g
he
r
le
ve
l o
f m
ai
nt
en
an
ce
.