Troubleshooting - Furuno 841 MARK-2 Operator's Manual

Furuno marine radar user manual
Table of Contents

Advertisement

4.4 Troubleshooting

Table 4-2 contains simple troubleshooting
procedures which you can follow to try to
restore normal operation. If you cannot re-
store normal operation, do not attempt to
check inside any unit of the radar system.
Any repair work is best left to a qualified
technician.
f I
. . .
y
o
u
p
e r
s s
e
d
h t
e
P [
O
W
E
] R
k
e
y
o t
u t
o
n
h t
e
a r
d
r a
h t
e
a r
d
r a
h
a
s
w
r a
m
e
d
u
p
a
n
d
y
o
p
e r
s s
e
d
h t
e
S [
T
B -
Y
T
] X
k
e
y
o t
t
a r
n
s
m
t i
y
o
u
h
a
v
e
a
d
u j
s
e t
d
h t
e
g
a
n i
i w
h t
F
T
C
a
n
d
S
T
C
o
f f
a
k
e
y
s i
p
e r
s s
e
d
Table 4-2 Troubleshooting table
B
t u
. . .
h t
e
c
o
n
r t
l o
p
a
n
l e
n r
n
t o
g i l
t h
n
o
h t
n i
g
a
p
p
e
a
s r
h t
e
d
s i
p
a l
y
r o
d
s i
c
o
t n
a r
t s
s i
p
o
r o
c
h
a
a r
c
e t
s r
a
e r
d
t s i
r o
e t
d
h t
e
a
n
e t
n
n
a
d
o
e
u
o r
a t
e t
c
h
a
a r
c
e t
s r
a
n
d
n i
d
c i
t a
o i
n
s
a
e r
a
b
n
r o
m
l a
n
i e
h t
r e
n
o
s i
e
n
r o
a t
g r
e
s t
a
p
p
e
r a
(
n i
d
c i
t a
o i
n
s
a
n
d
m
a
k r
e
s r
d
) o
n
i e
h t
r e
n i
d
c i
t a
o i
n
m
a
k r
e
s r
a
p
p
e
r a
a
n
d
a t
g r
e
s t
d
) o
h t
e
s
w
e
e
p
(
a r
d
l a i
s
w
e
e
p
n i
g
a
o r
u
n
d
d
s i
p
a l
) y
s i
n
t o
y s
n
c
h
o r
n
z i
e
d
i w
h t
a
n
e t
n
n
a
r
t o
t a
o i
n
h t
e
e r
s i
n
o
c
h
a
n
g
s
e
n
s
i t i
t i v
. y
n
o
h t
n i
g
h
a
p
p
e
n
s
T
h
e
n
. . .
d
o
e
s
t •
y r
a
d
u j
t s
n i
g
g i l
t h
n i
g
o
n
h t
m
e
n
. u
b
t a
e t
y r
m
a
y
c
h
e
k c
u f
s
e
o
n
t •
y r
a
d
u j
t s
n i
g
p
a l
y
E (
t x
e r
m
e
a
m
f a
e f
t c
d
s i
p
a l
e r
q
u
e
t s
s
e
v r
s
n
t o
h t
e
p
o r
b
e l
m
R
e
q
u
e
t s
s
e
h
a
v
e
a
q
u
a
s
e
. t
c
h
e
k c
s
g i
n
a
s
n
r o
c
h
e
k c
s
g i
n
a
n (
o
s i
e
n i l
e
h t
e
p
o r
b
e l
m
h t
e
u
n
. t i
R
e
q
u
e
e
n i
e r
q
u
e
t s
s
e
v r
k
e
y
m
a
y
b
e
h t
e
c
o
n
r t
l o
p
a
n
l e
b
a
e
B
l i r
a i l
n
c
e
B /
a
k c
g i l
t h
h
a
v
e
i d
c s
h
a
g r
e
. d
n i
p
o
w
r e
c
a
l b
. e
h t
e
o t
n
. e
b
e i
t n
e t
m
p
e
a r
u t
e r
m
y
o t
n
e
) .
c i
. e
m
a
y
b
e
n i
a
n
e t
n
n
a
u
v r
c i
. e
f i l
e i
d
e t
c
h
n
c i
a i
n
c
h
e
k c
c l
a
b
e l
f
r o
d
a
m
a
g
. e
c l
a
b
e l
f
r o
d
a
m
a
g
. e
m
a
y
b
e
n i
h t
e
a
n
e t
n
t s
s
e
v r
c i
. e
c i
. e
a f
u
t l
. y
R
e
q
u
e
t s
s
e
v r
c
- k
n i
g
a
y
n
. t i
h t
e
n
a
c i
. e
27

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents