Owner’s Manual
Fishfinder 90/140
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INTRODUCTION > ABOUT THIS MANUAL
INTRODUCTION
This manual covers the features and operation of the
Fishfinder 90/140.
The Operating Your Fishfinder section describes the
features and operation of the Fishfinder 90/140.
The Appendix contains unit specifications ,optional
accessories, and care information. You can also find
warranty information, the Software License Agreement and
European Licensing Requirements in the Appendix.
About This Manual
To get the most out of your Fishfinder 90/140, take time to
read this manual and learn the operating procedures for your
unit in detail. This manual is organized into the following
sections.
An Index is provided at the end of the manual for reference.
Manual Conventions
The Introduction sections contains the Table of Contents,
This manual uses the term Warning to indicate a potentially
hazardous situation, which, if not avoided, could result in
death or serious injury.
Product Registration, and Product Support Information.
The Getting Started sections contain information about
sonar and the Fishfinder.
This manual uses the term Caution to indicate a potentially
hazardous situation, which, if not avoided, may result
in minor injury or property damage. It may also be used
without the symbol to alert you to avoid unsafe practices.
The Installing Your Fishfinder section provides instruction
on installing the Fishfinder and the Transducer. If you
experience difficulty installing the Fishfinder, contact
Garmin Product Support or an installation professional in
your area.
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INTRODUCTION > TABLE OF CONTENTS
TABLE OF CONTENTS
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INTRODUCTION > PRODUCT REGISTRATION
Contact Garmin
Product Registration
Contact Garmin if you have any questions while using
your Fishfinder 90/140. In the USA contact Garmin
Product Support by phone: 800/800.1020 or 913/397.8200,
Monday–Friday, 8 AM–5 PM Central Time; or go to www.
Help us better support you by completing our online
registration today! Connect to our Web site at www.garmin.
Use this area to record the serial number (8-digit number
located on the back of the Fishfinder 90/140) in case your
Fishfinder 90/140 needs service. Keep the original sales
receipt, or a photocopy, in a safe place.
In Europe, contact Garmin (Europe) Ltd. at
+44 -1794-519944 (outside the UK) or
0870-8501242 (UK only).
Serial Number: ___ ___ ___ ___ ___ ___ ___ __
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INTRODUCTION > WARNING
Warning
Failure to avoid the following potentially hazardous situations could result in an accident or collision resulting in death or
serious injury.
When navigating, carefully compare information displayed on the Fishfinder 90/140 to all available navigation sources, including
information from visual sightings, and maps. For safety, always resolve any discrepancies or questions before continuing navigation.
WARNING: This product, its packaging, and its components contain chemicals known to the State of California to cause cancer, birth
defects, or reproductive harm. This Notice is being provided in accordance with California’s Proposition 65. If you have any questions or
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GETTING STARTED > UNDERSTANDING THE FISHFINDER
you might want to learn a bit about sonar: what it is, how it
works, and what you might see on the Fishfinder 90 or 140
screen. This manual does not go into technical detail about
sonar, but it can give you a general understanding of those
things that you need to know about sonar that can help you
interpret the screen and find the fish.
GETTING STARTED
To get the most out of your new Fishfinder:
•
Before you install and use your Fishfinder, read the
information in this manual.
•
•
Assemble and install the hardware (page 5).
Practice using your Fishfinder in Simulator Mode
(page 4).
Understanding Sonar
During installation, you connect your Fishfinder 90 or 140
to a transducer. The transducer uses sound to determine
information about what is in the water beneath your boat.
Then the transducer sends the information to your Fishfinder
to be displayed on the screen for you to view and interpret.
•
Use the Fishfinder (page 13).
Understanding the Fishfinder
The Fishfinder 90 or 140 is a fully automatic sonar unit
that allows you to go out on the water and find fish without
having to configure a lot of settings; or, if from experience
you know exactly how you want your Fishfinder screen to
look and function, you can customize each setting to your
specific needs.
The transducer sends sound waves down into the water
in a cone shape, similar to a flashlight beam (covering a
smaller circular area at the top and angling out to a larger
circular area at the bottom). These sound waves reflect off
of any object that they hit, and then the waves travel back
up to the transducer. These objects could be fish, branches,
the bottom, or any other object that has density that is
different from the water. The transducer receives the sound
If you have used a Fishfinder before, and you know how
to interpret the sonar information on the screen, you can
skip this section. If you have not used a Fishfinder before,
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GETTING STARTED > UNDERSTANDING DUAL BEAM TRANSDUCER COVERAGE
wave information, and then sends the information to the
Fishfinder. The Fishfinder displays the information on the
screen for you to see and interpret. The type of transducer
and settings you choose determine how the information is
shown on the screen.
Understanding Dual Beam Transducer
Coverage
Narrow
Beam
Wide
Beam
A dual beam transducer can transmit a narrow or a wide
beam. The water area covered by the transmitted sound
waves is determined by the beam width of the transducer
and the water depth. The narrow beam provides crisp detail
of what is under your boat, and is helpful if you are fishing
in deeper water where the beam covers more area (for
example, at a 30-foot depth, the narrow beam covers the
area of about a 7-foot circle).
The wide beam is more helpful in shallow water, because
it gives you a much wider view of objects in the water,
including areas beyond the sides of your boat. At a 30-foot
depth, the wide beam covers the area of approximately a
20-foot circle.
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GETTING STARTED > UNDERSTANDING THE FISHFINDER SCREEN
Depth range
Water depth
Understanding the Fishfinder Screen
Experimentation and experience are the keys to successfully
interpreting your Fishfinder screen. We recommend that you
take your Fishfinder out on familiar water, and spend time
learning to interpret what you see on the Fishfinder 90 or
140 screen.
Water
temperature at
the transducer
You see
suspended targets
as arches or fish
symbols.
Think of the Fishfinder screen as if you took a picture
from the side of an aquarium in your home. You can see
how deep a fish is in the water (how close it is to the top
or bottom), but you cannot tell where the fish is located
horizontally in the water (whether it is near the front or the
back of the aquarium). Remember this when you are trying
to locate exactly where something is in the water.
Structure
Simulator
mode
indicator
Bottom shape and type
The strongest sonar returns appear on your screen as solid,
dark areas. The weakest returns appear less intense, less
solid. The bottom of the water body returns the strongest
signal, so you can identify the bottom as the continuous,
solid line running across the bottom of the screen. The
strength of the sonar return can also help you interpret the
hardness of the bottom. The thicker the bottom line, the
harder the bottom.
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GETTING STARTED > USING SIMULATOR MODE
The Fishfinder 90 and 140 include the latest technology
in interpreting bottom signals; they can see through fish,
structures, and thermoclines (shown in the weakest hues).
Even so, large schools of fish or dense structures close to
the bottom can affect water depth return readings.
you want to see suspended targets indicated by a fish shape
instead of arches (Page 16).
Using Simulator Mode
Use Simulator Mode to practice and learn the operation of
the Fishfinder. If the Fishfinder does not detect a transducer
at startup, it automatically starts in Simulator Mode.
NOTE: If the Fishfinder is unable to track the bottom
for any reason, the digits which indicate depth flash on
and off to alert you that the Fishfinder is not tracking
the bottom.
While in Simulator Mode, the Fishfinder displays a bottom
scene, and you can control the Fishfinder (except the Gain
and Auto Gain options) just as if it were on the water.
If no keys are pressed for two minutes, the Fishfinder
automatically resets to default settings while in Simulator
Mode.
Along the top of the screen, you might see a grouping of
intense hues. This area is surface clutter, which can be
caused by waves or any other sonar interference at the
surface of the water. Too much surface clutter can obscure
your view of fish. You can turn down the Gain setting to
reduce this surface clutter (Page 14).
To exit Simulator Mode, turn off the Fishfinder.
You can see in the previous illustration how the fish are
indicated in a few different ways. By default, fish appear
as arches. Actual fish returns might not always appear as
perfect arches, due to the speed, fish orientation, or other
conditions. You can also turn on the Fish Symbols setting if
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INSTALLING YOUR FISHFINDER > PACKING LIST
E
F
INSTALLING YOUR FISHFINDER
A
Make sure you completely read and understand all
instructions before you install and use your Fishfinder. If
you have problems, contact Garmin Product Support, or
seek other professional assistance.
B1
D
(Fishfinder 140)
B2
C
You can install the Fishfinder hardware on a transom or on
a trolling motor. Before installation, make sure the wiring
harness can reach the Fishfinder and transducer locations.
(Fishfinder 90)
(Fishfinder 90)
G
Check the packing list below. If you are missing any items,
contact your Garmin dealer.
S
H
Packing List (one of each, unless otherwise noted):
(Cable not shown)
A—Fishfinder sonar unit
I—Trolling motor mount gasket
I
B1—Swivel mount bracket (Fishfinder
140; optional for Fishfinder 90); or
B2—Tilt mount bracket (Fishfinder 90)
C—Swivel base (Fishfinder 140)
D—Mounting knobs
E—Mounting knob spacer
F—Snap ring
G—Transducer with power cable
H—Transducer mount
J—5 mm Flat washers (2)
K—5 x 30 mm Screws (2)
L—10-32 Lock nut
M—4 x 12 mm Screws (4)
N—10-32 x 1.75 Screw
O—1/4" Cable clamps (2)
P—Plastic spacer
Q—1/4" Rubber washer
R—Cable tie, 5.6" (4)
S—Cable tie, 20”
J
K
L
N
O
P
R
Q
M
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INSTALLING YOUR FISHFINDER > INSTALLING THE TRANSDUCER
Mounting the Transducer on a
Trolling Motor
Installing the Transducer
Assembling the Transducer
1. Slide the large cable tie (S) through the slot on the
transducer mount (H) with the ridges of the band
facing up until equal lengths extend on both sides of
the mount. (NOTE: For cold water, or heavy timber
or debris areas, a metal 4-5" worm gear clamp is
recommended.)
1. Insert the rubber washer (Q) and plastic spacer (P)
into the transducer (G) at the same time. DO NOT
lubricate the rubber washer.
2. Route the cable toward the back of the transducer.
Slide the transducer into the transducer mount (H).
3. Place a 5 mm flat washer (J) on the 10-32 x
1.75" screw (N), and insert the screw through the
transducer mount, spacer, and rubber washer.
2. Position the mount gasket (I) on the curved top of
the transducer mount.
3. Place the transducer assembly
against the motor body of the
trolling motor, with the front
of the transducer pointed
away from the trolling motor
propeller.
4. Place the remaining 5 mm flat washer on the
exposed end. Install the 10-32 lock nut (L) finger
tight. You can tighten the transducer further after
installation on the boat.
Back of the transducer
Cable tie
slot
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INSTALLING YOUR FISHFINDER > INSTALLING THE TRANSDUCER
4. Wrap the two ends of the cable tie around the motor
body. Place the pointed end of the cable tie through
the fastener hole on the opposite end and pull it
through until it is snug but not tight. (The cable tie
clicks when you pull it.)
Mounting the Transducer on a Transom
Tool List (not included)—drill, 3/8" wrench or socket,
5/32" and 1/8" drill bits, masking tape, #2 Phillips
screwdriver, and marine sealant.
When selecting a transom mount location, consider the
following for optimal performance:
5. Position the transducer so that it is parallel with the
bottom when in use, and make sure the gasket is
aligned properly. Pull the cable tie end until tight.
Trim off the excess, if necessary. Tighten the 10-32
locking nut until it touches the mounting bracket and
then tighten 1/4 turn more. (Do not overtighten.)
•
For your sonar to operate properly, the transducer
must be located in calm water. DO NOT mount the
transducer behind strakes, rivet lines, struts, fittings,
water intake, discharge ports, eroding paint, or
anything that creates turbulence.
6. Route the 20’ (6 m) transducer cable using the
supplied cable ties to secure the cable to the motor
shaft. You can fill the forward-facing portion (except
the cable tie pocket) of the transducer mount with
sealant to avoid accumulating debris.
•
•
•
Mount the transducer as close to the center of the boat
as possible.
DO NOT cut the transducer lead. (This voids your
warranty.)
DO NOT mount the transducer in locations where it
might be jarred when launching, hauling, trailering,
or storage.
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INSTALLING YOUR FISHFINDER > INSTALLING THE TRANSDUCER
•
DO NOT mount the transducer in the path of the
prop on single-drive boats. The transducer can cause
cavitation that can degrade the boat’s performance
and damage the prop. On twin-drive boats, mount
the transducer between the drives, if possible.
Do not mount the transducer behind
strakes, rivet lines, struts, fittings, water
intakes or discharge ports.
Mount the transducer
parallel with the water line.
Make sure the transducer is below
water level when the boat is on plane
at high speed.
Apply marine sealant to all screw threads to prevent
water from seeping into the transom.
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INSTALLING YOUR FISHFINDER > INSTALLING THE TRANSDUCER
5. Place the first cable clamp on the transducer cable
approximately one third of the distance between
the transducer and the top of the transom. Mark
the location. Using a 1/8" bit, drill a pilot hole
approximately 3/8" (10 mm) deep.
To mount the transducer on a transom:
1. Position the transducer mount at the selected
transom location. Make sure the transducer is
parallel with the water line. Mark the center locations
of each hole on the transducer mount. (See the
figures on the next page.)
6. Attach the cable clamp using a 4 x 12 mm screw.
Coat the screw with marine sealant before
installation. Repeat steps 5 and 6 using the other
cable clamp.
2. Using a 5/32" bit, drill the pilot holes approximately
1" (25 mm) deep at the marked locations. To avoid
drilling the holes too deep, wrap a piece of tape
around the bit at 1" from the point of the bit.
7. Route the transducer cable, as needed, to the
Fishfinder. DO NOT CUT THE CABLE. Avoid routing
the cable with electrical wires or other sources of
electrical interference.
3. Apply marine sealant to the 5 x 30 mm screws.
Attach the transducer assembly to the transom
using the 5 x 30 mm screws. Adjust the transducer
assembly to extend beyond the bottom of the
transom approximately 1/8" (3 mm) on fiberglass
hulls or 3/8" (10 mm) on aluminum hulls. Adjust the
transducer assembly to be aligned parallel with the
water.
4. Tighten the 10-32 locking nut until it touches the
mounting bracket, and then tighten 1/4 turn more.
(Do not overtighten.)
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INSTALLING YOUR FISHFINDER > INSTALLING THE FISHFINDER UNIT
Drill pilot holes here.
Level
Installing the Fishfinder Unit
Selecting a Fishfinder installation Location
Select a Fishfinder installation location that allows you to
view and operate it easily while operating the vessel. Select
a mounting surface strong enough to support the weight
of the Fishfinder and protect it from excessive vibration or
shock. DO NOT mount the bracket in a location where the
Fishfinder is exposed to extreme temperature conditions.
When installing the mounting bracket, be sure to allow
room to connect and rout the power cable.
Align with the
transom bottom. The
transducer should
extend 1/8" below
fiberglass hulls or
3/8" below aluminum
hulls.
Keep it parallel with the water line.
Mounting the Bracket Assembly
Tool List (not included)—drill, screwdriver (Phillips or
OK
standard), three #8 pan-head machine bolts with matching
nuts and washers, and a 5/32
self-tapping screws and a 1/16
"
drill bit; or three #8 pan-head,
drill bit.
"
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INSTALLING YOUR FISHFINDER > INSTALLING THE FISHFINDER UNIT
To mount the bracket assembly:
1. Using the tilt mount bracket (Fishfinder 90) or the
swivel base (Fishfinder 140; Fishfinder 90 option)
as a template, mark the location of the three holes
that you use to secure the bracket to the mounting
surface.
To install the Fishfinder on the mount bracket:
1. Align the slot on the back of the Fishfinder with the
long mounting knob, and slide the Fishfinder into
place. If necessary, adjust the long knob to spread
the bracket arms apart. (Turn counter-clockwise to
widen the bracket arms and clockwise to tighten.)
2. If securing the base with machine bolts, drill three
5/32" holes at the locations you marked; or, if
2. Adjust the Fishfinder angle, and tighten the long
mounting knob until snug.
securing the base using self-tapping screws, drill
1/16" starter holes at the locations you marked. Drill
starter holes no deeper than half the screw length.
3. For the Fishfinder 140 (Fishfinder 90 option), rotate
the swivel mount bracket by twisting it left or right.
The bracket clicks as you turn it. Select a good
viewing angle, and then tighten all knobs.
3. Secure the tilt mount bracket or swivel base with
three bolts or screws. DO NOT OVERTIGHTEN.
4. If you are using the swivel mount, place the swivel
mount bracket over the swivel base and secure it
with the short knob.
Swivel mount bracket
Tilt mo
Swivel base
(Fishfinder 140;
Fishfinder 90 option)
(Fishfinder 90)
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INSTALLING YOUR FISHFINDER > INSTALLING THE WIRING HARNESS
3. Install the black (-) wire on the negative fuse holder
or battery terminal.
Installing the Wiring Harness
The Fishfinder comes with a wiring harness that connects
the Fishfinder to power and the transducer with one
easy-to-remove connection. If it is necessary to extend the
power wires, use 22 AWG wire. DO NOT cut the transducer
cable, because this voids your warranty. If your boat has an
electrical system, you might be able to wire the Fishfinder
directly to an unused holder on your current fuse block. If
you are using the boat’s fuse block, remove the in-line fuse
holder supplied with the Fishfinder. You can also wire the
Fishfinder directly to the battery.
4. Install a 2 Amp fuse in the fuse holder (fuse block
only).
5. Align the notches on the cable plug and on the back
of the Fishfinder. Insert the cable into the connector
and turn the lock ring counter-clockwise until it stops.
CAUTION: The Fishfinder input voltage is 10–18
volts DC. Do not exceed this voltage, because this can
damage the Fishfinder and void the warranty.
To install the wiring harness:
1. Determine the polarity of the power source using a
test light or volt meter.
2. Install the red (+) wire on the positive fuse holder or
battery terminal.
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INSTALLING YOUR FISHFINDER > TESTING THE TRANSOM MOUNT INSTALLATION
To test the transom mount installation:
1. Begin testing the installation at a slow speed. If the
sonar appears to be working properly gradually
increase the boat’s speed observing the sonar’s
operation. If the sonar signal suddenly is lost or the
bottom return is severely degraded, note the speed
at which this occurs.
Testing the Transom Mount
Installation
Perform this test after you install the Fishfinder. Because
you need water to carry the sonar signal, the Fishfinder
does not function properly with the transducer out of the
water. When you place your boat in the water, CHECK FOR
LEAKS around the screw holes that are below the water
line. DO NOT leave your boat in the water for an extended
period of time without checking for leaks.
2. Return the boat to the speed at which the signal was
lost. Make moderate turns in both directions, and
see if the signal improves.
3. If the signal strength improves while turning, adjust
the transducer so that it extends another 1/8"
below the transom of the boat. It might take several
adjustments to eliminate the degradation.
4. If the signal does not improve, it might be necessary
to move the transducer to a different location.
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OPERATING YOUR FISHFINDER > UNDERSTANDING BASIC FUNCTIONS
Understanding Basic Functions
OPERATING YOUR FISHFINDER
To turn on the Fishfinder:
Press and release the Power key.
To turn off the Fishfinder:
Press and hold the Power key.
Arrow keys—the up and down Arrow
keys select an item on a menu. Only
the Fishfinder 140 has the right and left
Arrow key that cycles through the Main
menu options.
To change the backlight level:
Press the Power key repeatedly to cycle between off,
low, and high.
To view or change settings for your Fishfinder, use the Main
menu and the Setup menu.
ENTER key—confirms a selection.
To change a setting:
ENTER
1. Press MENU. The Main menu appears.
2. Use the Arrow keys to move the selection arrow to
an option, and press ENTER. The settings appear.
MENU
MENU key—shows or exits a menu.
If you select Setup, the Setup menu appears. See
“Using the Setup Menu” on page 16.
Power key—turns the Fishfinder on or
off and controls the screen backlight.
(Fishfinder 140 is shown.)
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OPERATING YOUR FISHFINDER > USING THE MAIN MENU
3. To select a setting, use the Arrow keys to move the
selection arrow, and press ENTER. (When you reach
the end of a menu, the selection arrow wraps to the
beginning.) Press and hold an Arrow key to rapidly
advance the selection speed.
•
To quickly change a setting for the current option
that appears in the upper-left corner of the screen (for
example, the Range option in the above screen), press
an Arrow key.
Options and Settings
4. To close a setting or a menu, press MENU.
The following settings reset to the system defaults each time
you turn on the Fishfinder.
Using the Main Menu
From the Main menu, you can change the Range, Gain,
Scroll, Zoom, and View settings.
Range—sets the maximum depth that you want the
Fishfinder to display. Auto (default) automatically tracks
the bottom, or you can set the range, 5–600 feet.
•
To view the current menu settings, press MENU.
Gain—controls the sensitivity of the Fishfinder’s sonar
receiver. Auto (default) automatically sets the sonar
sensitivity, or you can set the gain. To see more detail on the
screen, increase the receiver sensitivity by selecting a higher
gain. If there is too much detail or if the screen is cluttered,
lower the sensitivity (lower the gain) to increase the clarity
of the screen.
•
To exit any window, press MENU.
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OPERATING YOUR FISHFINDER > USING THE SETUP MENU
Scroll—sets the rate that the graph scrolls from right to
left. If you are sitting still or the graph is moving too fast,
slowing or pausing the graph can help. The settings are
Ultra, Fast (default), Medium, Slow, and Paused.
Using the Setup Menu
To access the Setup menu:
1. Press MENU. The Main menu appears.
2. Use the Arrow keys to move the selection arrow to
Setup, and press ENTER. The options appear.
Zoom—sets the zoom level for the screen. Off is the
default.
Options and Settings
View—when you select a 2X or 4X Zoom setting, you
can select a specific area to view on the screen. You can
also allow the Fishfinder to automatically select a zoomed
viewing area based on the bottom.
Your changes to the following settings are used until you set
the System Defaults option to Yes.
Alarms
Battery—controls an alarm that sounds when the battery is
reaching a critical state of discharge. The settings are
Off (default) and 8.5–16.0 volts remaining.
Shallow—sets an alarm for the shallow water warning at a
specific depth. The settings are Off (default) and 1.0–600
feet.
Deep—sets an alarm for the deep water warning at a
specific depth. The settings are Off (default) and 1.0–600
feet.
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OPERATING YOUR FISHFINDER > USING THE SETUP MENU
Fish—turns on or off (default) an alarm that sounds when
the Fishfinder detects what it determines to be a fish.
Beam—controls the angle of the transducer beam. Wide
beam allows you to see more fish in shallow water, even off
the sides of the boat. You can also choose Narrow (default)
beam.
Graphs
Fish ID—sets how the Fishfinder shows underwater
targets and background information. If you select a
fish symbol, the screen shows only the information
related to that symbol (large, medium, and small sizes).
When using wide beam, fish symbols that are to the
sides of the boat appear hollow. Those that are directly
below the boat appear as solid black fish symbols.
Whiteline—sets how the Fishfinder shows information
about the bottom type.
•
Off—the bottom return appears as solid black.
(default) the Fishfinder does not interpret the sonar
return data. Fish appear as arches
Whiteline On
Whiteline Off
Suspended targets appear as symbols. No background
information appears
•
On (default)—the bottom return appears as a
grayscale pattern and can help to determine bottom
hardness. A hard bottom displays a thicker bottom
layer. A soft bottom appears as a thinner bottom layer.
Same as previous with the target depth shown.
Suspended targets appear as symbols. Background
information appears, making the distinction between fish
and structure easier.
Same as previous with target depth shown.
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OPERATING YOUR FISHFINDER > USING THE SETUP MENU
Auto Gain—controls the aggressiveness of the Auto Gain.
The higher the setting, the greater the number of targets
appear on the screen. The lower the setting, the less clutter
on the screen. The settings are High, Medium (default), and
Low.
Units
Depth—sets the measurements in Feet (default), Meters, or
Fathoms.
Temperature—sets the water temperature units. The
settings are Fahrenheit (default) and Celsius.
Numbers
System
Size—sets the appearance of depth, temperature, and battery
numbers. The settings are Small and Large (default).
Simulator—controls the simulator mode. The settings are
Off and On (default). See page 4 for more information.
Battery—sets whether the current battery voltage appears
on the screen. The settings are Hide (default) and Show
Language—sets your language choice.
Beeper—controls all Fishfinder sounds. The settings are
Off and On (default).
Water Temperature—sets whether the water temperature
appears on the screen. This appears only if you have a
temperature-capable transducer. The settings are Hide and
Auto (default).
Contrast—adjusts the contrast of the screen to compensate
for light levels or viewing angles. Use the Arrow keys to
increase or decrease the screen contrast.
Defaults—restores all default settings.
18
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APPENDIX > SPECIFICATIONS
Internal memory backup to retain user settings
APPENDIX
Input: 10 to 18 VDC with high voltage protection
Sonar Power Output: 100 watts (RMS), 800 watts (peak-to-peak)
Frequency: 80 kHz (wide) and 200 kHz (narrow)
Specifications
Fishfinder 90
Size: 4.7" W x 4.9" H x 2.43" D (11.9 x 12.4 x 6.1 cm)
Depth: 600 foot max depth. (Depth capacity is dependent on water
salinity, bottom type, and other water conditions.)
Weight: 15.5 oz (.439 kg)
Specifications are subject to change without notice.
Display: 2.0" W x 3.3" H (5.0 x 8.4 cm), 3.9" (9.9 cm) diagonal,
64 x 128 pixels, black-and-white FSTN display
Optional Accessories
Usage: 3.5 watts maximum, Nominal: 12 VDC @ 0.15 Amps
Purchase the following optional accessories on the Garmin Web site:
Fishfinder 140
Size: 6.1" W x 4.9" H x 2.6" D (15.5 x 12.5 x 6.6 cm)
Swivel mount for the Fishfinder 90—allows your Fishfinder 90 to
tilt and swivel on its mounting bracket.
Weight: 18.7 oz. (.530 kg)
Portable case with battery pack and suction mount transducer—
makes your Fishfinder portable, so that it can go on any boat, with no
installation (requires eight D-cell batteries, not included).
Display: 3.2" W x 3.1" H (8.1 x 7.9 cm), 4.7" (9.9 cm) diagonal,
128 x 240 pixels, 4-level gray scale FSTN display
Flush mounting kit—mounts your fishfinder flush on the bulkhead
or cabin wall. Press the side clips to release the Fishfinder so you can
take it with you.
Usage: 8 watts maximum, Nominal: 12 VDC @ 0.5 Amps
Fishfinder 90 and Fishfinder 140
Case: Fully Gasketed, high-impact plastic alloy Waterproof: IEC 529,
level IPX-7 (submerged to 1 meter for 30 minutes)
Protective cover—protects your product when you are not using it.
Temperature Range: +5°F to 158°F (-15°C to 70°C)
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APPENDIX > CARING FOR THE FISHFINDER
WARNING: The Fishfinder screen is coated with a
special anti-reflective coating which is very sensitive
to skin oils, waxes, and abrasive cleaners. CLEANERS
CONTAINING AMMONIA WILL HARM THE
ANTI-REFLECTIVE COATING. It is very important to
clean the screen using an eyeglass lens cleaner which is
specified as safe for anti-reflective coatings and a clean,
lint-free cloth.
Caring for the Fishfinder
The Fishfinder case is constructed of high quality materials
and does not require user maintenance except cleaning.
Cleaning the Case
Clean the Fishfinder’s outer casing (except for the screen)
using a cloth dampened with a mild detergent solution, and
then wipe it dry. Avoid chemical cleaners and solvents that
may damage plastic components.
Storage
Do not store the Fishfinder where prolonged exposure to
temperature extremes may occur (such as in the trunk of a
car), because permanent damage may result.
Cleaning the Screen
The Fishfinder screen should be cleaned using a soft, clean,
lint-free cloth. Water or eyeglass cleaner can be used if
needed. If these are used, apply the liquid to the cloth and
then gently wipe the screen with the moistened cloth.
Water Immersion
The Fishfinder is waterproof to IEC Standard 60529 IPX7.
It can withstand immersion in 1 meter of water for 30
minutes. Prolonged submersion can cause damage to the
Fishfinder. After submersion, be certain to wipe and air dry
the Fishfinder before reuse.
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APPENDIX > SOFTWARE LICENSE AGREEMENT AND LIMITED WARRANTY
Software License Agreement
BY USING THE FISHFINDER, YOU AGREE TO BE BOUND
BY THE TERMS AND CONDITIONS OF THE FOLLOWING
SOFTWARE LICENSE AGREEMENT. PLEASE READ THIS
AGREEMENT CAREFULLY.
Limited Warranty
This Garmin product is warranted to be free from defects in materials
or workmanship for one year from the date of purchase. Within
this period, Garmin will at its sole option repair or replace any
components that fail in normal use. Such repairs or replacement will
be made at no charge to the customer for parts or labor, provided that
the customer shall be responsible for any transportation cost. This
warranty does not cover failures due to abuse, misuse, accident or
unauthorized alteration or repairs.
Garmin grants you a limited license to use the software embedded in
this device (the “Software”) in binary executable form in the normal
operation of the product. Title, ownership rights, and intellectual
property rights in and to the Software remain in Garmin.
THE WARRANTIES AND REMEDIES CONTAINED HEREIN
ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES
EXPRESS OR IMPLIED OR STATUTORY, INCLUDING
ANY LIABILITY ARISING UNDER ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY
GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY
FROM STATE TO STATE.
You acknowledge that the Software is the property of Garmin and
is protected under the United States of America copyright laws and
international copyright treaties. You further acknowledge that the
structure, organization, and code of the Software are valuable trade
secrets of Garmin and that the Software in source code form remains
a valuable trade secret of Garmin. You agree not to decompile,
disassemble, modify, reverse assemble, reverse engineer, or reduce
to human readable form the Software or any part thereof or create
any derivative works based on the Software. You agree not to export
or re-export the Software to any country in violation of the export
control laws of the United States of America.
IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY
INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL
DAMAGES, WHETHER RESULTING FROM THE USE,
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APPENDIX > LIMITED WARRANTY
MISUSE, OR INABILITY TO USE THIS PRODUCT OR FROM
DEFECTS IN THE PRODUCT. Some states do not allow the
exclusion of incidental or consequential damages, so the above
limitations may not apply to you.
Online Auction Purchases: Products sold through online auctions
are not eligible for rebates or other special offers from Garmin.
Online auction confirmations are not accepted for warranty
verification. To obtain warranty service, an original or copy of the
sales receipt from the original retailer is required. Garmin will not
replace missing components from any package purchased through an
online auction.
Garmin retains the exclusive right to repair or replace the unit
or software or offer a full refund of the purchase price at its sole
discretion. SUCH REMEDY SHALL BE YOUR SOLE AND
EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.
International Purchases: A separate warranty is provided by
international distributors for units purchased outside the United
States. This warranty is provided by the local in-country distributor
and this distributor provides local service for your unit. Distributor
warranties are only valid in the area of intended distribution. Units
purchased in the United States or Canada must be returned to the
Garmin service center in the United Kingdom, the United States,
Canada, or Taiwan for service.
To obtain warranty service, contact your local Garmin authorized
dealer or call Garmin Product Support for shipping instructions and
an RMA tracking number. The unit should be securely packed with
the tracking number clearly written on the outside of the package.
The unit should then be sent, freight charges prepaid, to any Garmin
warranty service station. A copy of the original sales receipt is
required as the proof of purchase for warranty repairs.
The Garmin Fishfinder has no user-serviceable parts. Should you ever
encounter a problem with your unit, please take it to an authorized
Garmin dealer for repairs.
Garmin International, Inc.
1200 E 151st Street, Olathe, Kansas 66062 USA
Tel. 913/397.8200, Fax. 913/397.8282
The Fishfinder is fastened shut with screws. Any attempt to open the
case to change or modify the unit in any way will void your warranty
and may result in permanent damage to the equipment.
Garmin (Europe) Ltd.
Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51
9DL UK
Tel. 44/0870.8501241, Fax 44/0870.8501251
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APPENDIX > DECLARATION OF CONFORMITY (DOC)
Tell Us What You Think
Declaration of Conformity (DoC)
Hereby, Garmin, declares that this Fishfinder 90/140 is
in compliance with the essential requirements and other
relevant provisions of Directive 1999/5/EC.
Tell us how you like this manual! Fill out the Product
and click Product Documentation Survey.
To view the full Declaration of Conformity, see the Garmin
Web site for your Garmin product: http://www.garmin.
ff140/. Click Manuals, and then select the Declaration of
Conformity link.
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INDEX
setup 16
mounting the bracket assembly
mounting the transducer on a
transom 9
C
H
INDEX
clutter 4
A
I
accessories 19
alarms 16
installing
D
the unit on the mount bracket
battery 16
deep 16
mounting the transducer on a
fish 17
N
shallow 16
arches 4
E
numbers 18
battery 18
K
key
F
B
arrow 14
enter 14
menu 14
O
backlight 14
G
gain 15
graphs 17
beam 17
P
L
R
range 15
M
Whiteline 17
menu
main 15
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INDEX
assembling 6
installing 6
S
scroll 16
mounting on a trolling
motor 6
selecting a transom mount
location 7
Sonar 1
U
units 18
depth 18
temperature 18
V
view 16
specifications 19
storage 20
W
whiteline 17
T
testing the transom mount
installation 13
Z
transducer 1
zoom 16
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For the latest free software updates (excluding map data) throughout the life of your
© 2006 Garmin Ltd. or its subsidiaries
Garmin International, Inc.
1200 East 151st Street, Olathe, Kansas 66062, USA
Garmin (Europe) Ltd.
Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, UK
Garmin Corporation
No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan
www.garmin.com
Part Number 190-00582-00 Rev. B
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