Maintenance & troubleshooting, 1 checking, 2 cleaning the display unit – Furuno FCV-582L User Manual
Page 28: 3 transducer maintenance, 4 replacing the fuse, Warning
21
MAINTENANCE & TROUBLESHOOTING
Do not open the cover.
There are no user-serviceable parts inside.
Refer any repair work to a qualified
technician.
WARNING
4.1 Checking
Regular maintenance is essential for good per-
formance. Checking the items listed in the
table below on a regular basis will keep the
equipment in good shape for years to come.
Table 4-1 Checking
m
e
t
I
n
o
i
t
c
A
n
u
r
e
l
b
a
C
e
r
a
s
r
o
t
c
u
d
n
o
c
f
I
e
c
a
l
p
e
r
,
d
e
s
o
p
x
e
.
e
l
b
a
c
,
e
l
b
a
c
r
e
w
o
P
g
u
l
p
e
l
b
a
c
r
e
c
u
d
s
n
a
r
t
,
d
e
n
e
s
o
o
l
f
I
.
n
e
t
h
g
i
t
d
n
u
o
r
g
t
i
n
u
y
a
l
p
s
i
D
.
n
a
e
l
c
,
d
e
d
o
r
r
o
c
f
I
n
i
a
m
s
'
p
i
h
S
s
e
g
a
t
l
o
v
,
g
n
i
t
a
r
f
o
t
u
o
f
I
m
e
l
b
o
r
p
t
c
e
r
r
o
c
.
4.2 Cleaning the Display Unit
Dust or dirt on the display unit can be removed
with a soft cloth. If desired a water-moistened
cloth may be used. Do not use chemical clean-
ers to clean the display unit; they can remove
paint and markings.
4.3 Transducer Maintenance
Marine life on the transducer face will result
in a gradual decrease in sensitivity. Check the
transducer face for cleanliness each time the
boat is dry-docked. Carefully remove any
marine life with a piece of wood or fine-grade
sandpaper.
4.4 Replacing the Fuse
The fuse on the power cable protects the sys-
tem from reverse polarity of the ship’s mains
and equipment fault. If the fuse blows, find
the cause before replacing it. Use only a 3A
fuse. Using the wrong fuse will damage the
unit and void the warranty.
Use only a 3A fuse.
Use of a wrong fuse can result in equipment
damage and void the warranty.
WARNING