Eagle Magna II, Magna II Plus INSTALLATION AND OPERATION INSTRUCTIONS
p
Magna
II
and
Magna
II
INSTALLATION
INSTRUCTIONS
LITHO
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IN U.S.A.
988-0106-56
EAGI
AND
Plus
OPERATION
1TM
TABLE
OF CONTENTS
INTRODUCTION
INSTALLATION
POWER
SPEEDTrEMPERATURE
KEYBOARD
DISPLAY
MENUS
OPERATION
AUTOMATIC
RANGE
ZOOM
ZOOM
SENSmVITY
GRAYLINE®
FISH
CHARTSPEED
DISPLAY
ALARMS
FISHALARM
DEPTHALARM
LAMP
FEET/METER
DISPLAY
ASP
SIDE
SIDE SCAN
SIDE
MENU SUMMARY
TRANSDUCERS
SIGNAL
FISHARCHES
WATER TEMPERATURE
SURVEYINGA
BAIT FISH
SONAR
CONNECTIONS
-
Automatic
-
Manuai
ID
(Advanced
SCAN
SCAN-ALARM
INTERPRETATION
TROUBLESHOOTING
. 1
. 1
BASICS
Operation
Operation
MODE
CONTRAST
Signal
Processing) 17
-
RANGE
AND CONE ANGLES
LAKE
SENSOR
AND THERMOCUNES
2
3
4
5
5
6
6
6
7
8
9
10
11
12
14
14
15
16
16
16
Is
18
19
19
20
21
22
23
25
25
26
Copyright
All features
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and
All screens in
©
All
specifications
1990
1991,
rights
subject
this manual
Eagle
reserved.
to
Change
are simulated.
Electronics
without notice.
4. The boat must be
is motionless,
lines.
ELECTRICAL
A
majorcause
sonar's
completely
or not at all.
To
cause. With the boat
electrical
your Magna
be a
equipment
turn on the
turn the
all electrical
noted,
display
coverthe screen with black dots,
eliminate or minimize the
equipment
steady
on the boat and view
bilge pump
pump
then turned off.
moving
fish
stay
NOISE
of sonar
as random
then turn
on,
bottom
signal
then turn on the
off,
equipment
at a
slowtrolling speed
In the
cone, showing
problems
at rest in the
on the
and viewthe
has
is electrical
patterns
effects of electrical
boat off. Make certain the
off ASP
on
been turned
of dots or lines. In
water,
(Advanced Signal
the
display.
the effect on the sonar's
sonardisplayfor
VHF radio and transmit.
seefish arches. lithe
to
on the
display
noise. This
or cause the unit
noise,
the first
thing you
Now turn
their effect
on,
Processing).
on each
noise. If no
as
straight
usually appears
severe
cases,
operate erraticly,
to determine the
first
try
should do is turn
is
engine
off,
There should
of electrical
piece
display.
on the sonar
For
noise is
Keep doing
boat
horizontal
on the
it can
Turn
also.
example,
present,
this until
display
all
INTRODUCTION
Thank
is a
men. These units
bottom, fish, structure,
However,
menu
easy-to-use
To
get
where it all
is
road.
for
you
purchasing
high quality
if
you
The
key.
menus.
started with
begins. Improper
After
you've
sonar
have an automatic feature
wish to
Magna
your Eagle
read
of the manual. The
perform
water.
for
INSTALLATION
you.
Take
an
designed
Eagle
for both
sonar.
and more! All
fine tune the
series has
first read the installation
unit,
installation can cause
the
instructions,
more
know about
you
this manual for
Your
Magna
professional
that finds and
to do is
have
you
all
unit,
powerful
you
features available
install the
your unit,
reference when
II or
Magna
and novice
displays
the on
press
have to do is
section. This
problems
then read the rest
unit,
the better it will
head for the
you
II Plus
fisher-
the
key.
the
press
through
down the
If
find noise
you
or
radio,
cable and transducer
power
interference.
certain to
unit's
power
noise
If no
certain
the
wiring. Try using resistorspark plugs,
power
the
supplied
everything
Increase the RPM
problem
cable
battery helps
When no noise
noise source
experience
orwhen
water,
be the location and/or
will
must be
Read
yourtransducer
interference from an electrical instrument, trolling
to isolate the
try
VHF radio antenna
the sonar's
keep
cable
directly
displays
with the
could be one of
from
away
eliminate noise
with the unit when
appears
is
probably
make
hasty
the boat is at rest.
in a location
placed
problem.
cable
cables radiate noise when
wires
away
to the
battery
the sonar unit from electrical
on
the sonar unit is turned off,
except
gearshift
three
things; spark plugs,
engine wiring. Again, routing
problems.
the
wiring
sonar unit after all of the above tests,
on the
cavitation.
sonar installations
In
of the transducer. The face
angle
that has a smooth flow of water
owners manual
You can
from the
away
from it. You
to Isolate
in neutral.
alternatorf
power
Many
all
nearly
for the best
28
wiring
may
it from
If noise
liters,
the
the cause
mounting
re-route
need to route the sonar
otherwiring
equipment,
then stall
appears
alternator,
or
routing
power
the
usually
Make certain to
cable to
novices or
which function
cases,
motor,
the sonar unit's
that Is
transmitting,
on the
pump,
causing
so be
on the
then make
the
engine.
display,
ortachometer
the sonar unit's
cable
use the in-line fuse
battery.
persons
perfectly
directly
then the
with limited
in shallow
of the malfunction
of the transducer
at all boat
position.
speeds.
the
boat.
to
Mountthe
Magna
when it'stilted
wood screw or
of
piece
plywood
II in
forthe
through
Make certain there
transducer cables.
Drill a hole
location
the bracket
transducer cables
a
power
in
the
for this hole is
covers the hole. The smallest
or transducer connector
convenient location,
any
bestviewing
bolt
angle.
mounting.
on the back side of
is
enough
dash for the
can
room behind the
power
immediately
through
pass
under the
is one inch.
and another cable
1
clearance
providedthere
is
Holes in the bracket's base allow
It
thin
be
may
panels
necessary
to reinforce the
unitto attachthe
and transducer
gimbal
hole both the
However,
cables. The best
bracket. This
through
you
to
place
panel.
power
power
can't
a one
a
and
way,
and
pass
inch
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hole.
Therefore,
through
from
the hole from under the dash.
the front side of the dash.
the transducer
fasten
the bracket to the dash.
after
and
drilling
power
the
hole,
pass
Then
the
transducer connector
drop
Slide the bracket overthe
cables out the
slots in the
the
power
hole,
bracket.
cable down
up
then
route
Finally,
Weak bottom
echo,
digital readings erratic,
2. Electrical noisefromthe
the sonar to
This can
from the
automatically
causethe unit to eliminate
display.
or no fish
boat's motorcan interfere with the sonar. This causes
increase its
Discrimination or noise
weakersignals
such asfish oreven structure
signals (cont.):
rejection
feature.
POWER
The
wn the
away
CONNECTIONS
II
Magna
works from a 12 volt DC
cable
power
from other boat
directly
wiring,
the best isolation from
enough
attach the
have
information
to reach the
cable to an
power
problems
with
on electrical noise.
BLAcK
12 VOLT
BATrERY
battery, splice
system
to the boat's
especially
electrical noise. If the
#18
gauge
3
amp
FUSE
or
MAGNA II
accessory
electrical interference. See
only.
battery. Keep
the
engine's
supplied
insulated
power buss, however,
Forthe best
the
wires.
results,
power
This will
cable is not
wire to it. You can
you may
28 for more
page
cable
give
long
3. The water
sonar
can't find the bottom
flash
continuously.
are in. If this
you
to a realistic
range
move into
you
4. Check the
also
drops, reducing
Bottom echo
bottom echo while boat Is
1. The
transducer
flow of water in
water
disrupt
other
targets.
2.
Electrical noisefrom the boat's motorcan interfere with the
the
sonar to
This can cause the unit
from the
and
No
display. Try using resistorspark plugs
transducer cables
fish arches when the Fish ID feature Is
be
may
battery voltage.
disappears
deeper
It
may change
happens,
one,
shallower
its
may
order for the sonar to work at all
the sonar
The
technical term for this is 'Cavitation'.
automatically
than the sonar's
while it's in the automatic
signal
(for
example,
water,
ability
at
be in turbulent water, It must be
signals,
increase its
to eliminate
away
the
range
the unit in the manual
place
0-100
a bottom
If
the
voltage drops,
to
find the bottom or
high speeds
moving
interfering
Discrimination or noise
weakersignals
from other electrical
ability
to limits
and increase the
feet)
should
signal
or erratic
boat
with its
such as fish oreven
or
routing
wiring
off:
the unit's
targets.
ability
to
find the bottom. If the
the
mode,
fargreaterthan
mode,
appear.
transmitter
digital
the water
then
change
sensitivity.
digital reading
mounted in a smooth
speeds.
Air bubbles in the
to find
the bottom or
sonar. This causes
re]ection
the sonar units
on the
boat.
will
the
As
power
or weak
feature.
structure
power
MACNA II
PLUS
1. Make certain
problem
manual for more
2. The
sensitivity may
it has to be able to receive the
arch,
3
amp
FUSE
2
until it leaves. ft the
when it is in the center
3. Use the Zoom
in on a small
better luck
This
enlarges
if a
partial
range
seeing
transducer is
arch is
information.
sensitivity
pointing straight
displayed.
not be
high enough.
is not
fish's echo from the time it enters the cone
high enough,
of the cone.
feature, It is much easierto
of waterthan a
fish arches
the
targets, allowing
large
with a 30 to 60 foot
the
down. This is the
See the Fish Arch section in
In orderforthe unit to
one. For
display
the unit
display
example, you
range
to show much more
displays
fish arches
than a 0 to
27
most common
owners
your
the fish
range.
detail.
a fish
only
display
when zoomed
will have much
60 foot
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IMPORTANT
SERVICE INFORMATION!
If
unit is not
your
troubleshooting
tomerservice
the How To Obtain Service section on
SONAR
working,
section
department.
TROUBLESHOOTING
or if
before
Unit won't turn on:
Check the
1.
2. Make certain the
to the
positive battery
3. Check the fuse.
4. Measure the
11 volts. if it
on the terminals are
Unit
isn't,
freezes,
cable's connection at the unit. Also check
power
power
terminal,
batteryvoltage
the
wiring
corroded,
locks
up,
or
need technical
you
contacting
It
save
may
cable is wired
black to
atthe unit's
to the unit is
or the
operates erratically:
a service center or the
thetrouble
you
29 if
page
properly.
negative
powerconnector.
defective,the battery
battery
needs
help, please
of
need service.
you
The red wire connects
or
ground.
use the
factory
returning yourunit.
the
It should be at least
terminals
charging.
wiring.
following
cus-
See
orwiring
These units have reverse
wires are reversed.
power
are aft ached
SPEED/TEMPERATURE SENSOR INSTALLATION
Magna
Mount the
the flow of
correctly.
II Plus
Only
speed/temp
water is the smoothest. There should be a
polarity protection.
However,
sensor on the boat's transom
the unit will not
turbulence and air bubbles in the chosen location.
transom is
the
if
necessary.
hull
fittings.
a
typical
preferred,
Do not mount the
These will disturb the flow of
installation,
however,
the
speed
from the centerline of the hull. The
function
at
high speed
Once
you
properly.
determinethe
Make certain the chosen
or when the boat is on
proper
the starboard
sensor behind
speed
sensor is
sensor must
plane.
location, place
Make certain the sensor's bottom is flush with the
the transom in four
places,
two
in
each slot.
at each location. Mount the sensorto the
screws. Use a
the sensor so it is flush with the
Adjust
screws.
good grade
of
caulking compound
No
damage
work until the wires
in
The
(right)
strakes, ribs,
water to the
mounted six to twelve inches
always
location is in the water even
the sensoron thetransom.
bottom of the hull. Mark
Drill a 5/32"
huH with four#1 0 stainless steel
to seal the screws.
bottom of the hull and
will occur if the
-
a location
port
side can be used
speed
be in the water to
mounting
where
minimum of
side of
(left)
orthru-
sensor. In
hole
tighten
the
1. Electrical noise from the boat's
interfering
from other electrical
cable
2.
3. Check both the transducer and
securely
Weak
1. Make
transducer.
its effectiveness. If the transducer Is mounted inside the
shooting through only
hull. Do NOT use RN silicone rubber adhesive
with the sonar unit.
directly
Inspect
to the
the transducer cable for breaks, cuts,
plugged
bottom
echo, digital readings
certain transducer is
Oil, dirt,
wiring
battery
in to the unit.
andfuel can cause afilmto form onthe
one
layer
motor, trolling
Re-routing
on the boat
instead
of
power
pointing straight
of
fiberglass
the
power
may help.
through
a fuse block or
connectors. Make
erratic,
and that it is
26
or an
motor,
andtransducer cables
Route the sonar unit's
or
pinched
or no fish
down.
Clean the lace of the
transducer, reducing
securely
or Marinetexm.
accessory may
ignition
wires.
certain both are
sIgnals:
be sure it is
hull,
bonded
away
power
switch
to
be
the
If the base of the transom has a
and the sensor with
water flow.
Route the sensor cable
cable. The
speed/temp
caulking compound.
to the in-line connector on the
sensor
radius,
is now
3
fill the
This will
ready
between the transom
gap
insure a smooth
help
Magna
Plus'
for use.
power
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