Fishfinder 90/140 ® owner's manual © 2006 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U.S.A. Tel. 913/397.8200 or 800/800.1020 Fax 913/397.8282 Garmin (Europe) Ltd. Unit 5, The Quadrangle Abbey Park Industrial Estate Romsey, SO51 9DL, U.K. Tel. 44/0870.8501241 Fax 44/0870.8501251 Garmin Corporation No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan Tel. 886/2.2642.9199 Fax 886/2.2642.9099 All rights reserved. Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium, for any purpose without the express prior written consent of Garmin. Garmin hereby grants permission to download a single copy of this manual onto a hard drive or other electronic storage medium to be viewed and to print one copy of this manual or of any revision hereto, provided that such electronic or printed copy of this manual must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited. Information in this document is subject to change without notice. Garmin reserves the right to change or improve its products and to make changes in the content without obligation to notify any person or organization of such changes or improvements. Visit the Garmin Web site (www.garmin.com) for current updates and supplemental information concerning the use and operation of this and other Garmin products. Garmin® is a registered trademarks of Garmin Ltd. or its subsidiaries and may not be used without the express permission of Garmin. January 2006 Part Number 190-00582-00 Rev. A Printed in Taiwan INTRODUCTION INTRODUCTION This manual contains information about the Garmin® Fishfinder® 90 and the Garmin Fishfinder 140. Contact Garmin Product Registration Help us better support you by completing our online registration today! Have the serial number of your Fishfinder ready, and connect to our Web site (http://www.garmin.com). Click on Product Registration. Use this area to record the serial number (8-digit number located on the back of the box). Keep your original sales receipt in a safe place, or attach a copy inside the manual. Serial Number: ___ ___ ___ ___ ___ ___ ___ ___ If you have difficulty while using your Fishfinder, or if you have any questions, in the U.S.A. contact Garmin Product Support by phone: 913/397.8200 or 800/800.1020, Monday­Friday, 8 AM­5 PM Central Time; or go to http://www.garmin.com/support/, and select Product Support. In Europe, contact Garmin (Europe) Ltd. at 44/0870.8501241. Fishfinder 90/140 Owner's Manual i INTRODUCTION Caring for the Fishfinder Cleaning the Case The Fishfinder case is constructed of high quality materials and does not require user maintenance except cleaning. 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. 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 ANTIREFLECTIVE 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. Cleaning the Screen Storage The Fishfinder screen should be cleaned using a soft, clean, lint-free cloth and eyeglass cleaner. Apply the liquid to the cloth, and then gently wipe the screen with the moistened cloth. 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. 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. ii Fishfinder 90/140 Owner's Manual INTRODUCTION TABLE OF CONTENTS Introduction.............................................................. i Product Registration ...................................................i Contact Garmin ...........................................................i Caring for the Fishfinder ...........................................ii Cleaning the Case ...........................................................ii Cleaning the Screen .........................................................ii Storage .............................................................................ii Water Immersion .............................................................ii Warning ......................................................................iv Understanding Sonar .................................................1 Understanding the Fishfinder Screen ............................... 1 Understanding Transducer Coverage............................... 2 Using Simulator Mode ...............................................3 Installing the Transducer ...........................................5 Assembling the Transducer ............................................ 5 Mounting the Transducer on a Trolling Motor ................ 5 Mounting the Transducer on a Transom .......................... 6 Installing the Fishfinder Unit .....................................9 Selecting a Fishfinder Location ....................................... 9 Mounting the Bracket Assembly ..................................... 9 Installing the Unit on the Mount Bracket ...................... 10 Installing the Wiring Harness ..................................10 Testing the Transom Mount Installation .................11 Operating Your Fishfinder ................................... 12 Getting Started........................................................ 1 Understanding Basic Functions .............................12 Using the Main Menu ...............................................13 Options and Settings ...................................................... 13 Using the Setup Menu..............................................14 Options and Settings ...................................................... 14 Specifications ...........................................................17 Fishfinder 90 .................................................................. 17 Fishfinder 140 ................................................................ 17 Fishfinder 90 and Fishfinder 140 ................................... 17 Optional Accessories ...............................................17 Software License Agreement ..................................18 Limited Warranty ......................................................18 Appendix ............................................................... 17 Installing Your Fishfinder ...................................... 4 Index ...................................................................... 20 iii Fishfinder 90/140 Owner's Manual INTRODUCTION 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 would like additional information, please refer to our Web site at http://www.garmin.com/prop65. iv Fishfinder 90/140 Owner's Manual GETTING STARTED GETTING STARTED To get the most out of your new Fishfinder: · Before you install and use your Fishfinder, read and learn the information in this manual. · Assemble and install the hardware (page 4). · Practice using your Fishfinder in simulator mode (page 3). · Use the Fishfinder (page 12). Generally speaking, if the only thing between the transducer and the bottom is water, the first strong return comes from the bottom directly below the transducer, and this sets the bottom level. Weaker secondary returns provide the detailed data. Stronger returns appear in darker hues. Understanding the Fishfinder Screen Understanding Sonar The transducer sends a beam down to the bottom of the water, much like the beam of a flashlight. The beam starts small near your vessel and expands as it gets to the bottom. The Fishfinder screen does not display a three-dimensional representation of the underwater environment; the screen is in two dimensions, much like if you took a picture of an aquarium. Only the depth of the item in the water appears. The screen does not show you where an item is located horizontally in the water, as shown in the following drawings. The fish is not directly above the tree in reality, but it might look like it is on the Fishfinder screen. The transducer that you mount on your vessel sends sound waves toward the bottom of the water in a coneshaped pattern. When a sound wave strikes an underwater object (such as the bottom, a structure, or a fish), sound is reflected back to the transducer. The transducer collects the reflected sound waves and sends the data to the Fishfinder to be processed and shown on the screen. The underwater data is shown on the screen in the order that it is returned; the first returned is the first on the screen. Fishfinder 90/140 Owner's Manual 1 GETTING STARTED Fish 1' The wide beam covers a much larger area, but with some loss of bottom and structure detail. In the following illustration, at a 30-foot depth, the wide beam covers the area of a 20-foot circle. 10' Tree 20' Tree Depth Coverage Diameter Aerial View of the Water Sonar Display Understanding Transducer Coverage The bottom area covered by the transmitted sound waves is determined by the beam width of the transducer and the water depth. The Fishfinder can transmit either a narrow or wide beam. The narrow beam provides crisp bottom and structure detail, but the coverage area is limited. As shown in the following illustration, at a 30-foot depth, the narrow beam covers the area of a 6-foot circle. 2 Wide Beam Narrow Beam Fishfinder 90/140 Owner's Manual GETTING STARTED Using Simulator Mode Water depth Water temperature at the transducer You see fish as arches or fish symbols in three sizes. Structure Simulator mode indicator Depth range 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. 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. To exit simulator mode, turn off the Fishfinder. Bottom shape and type Fishfinder 90/140 Owner's Manual 3 INSTALLING YOUR FISHFINDER INSTALLING YOUR FISHFINDER Make sure you completely read and understand all instructions before you install and use your Fishfinder. If you have problems, contact Product Support, or seek other professional assistance. 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. Check the packing list below. If you are missing any items, contact your Garmin dealer. A--Fishfinder sonar unit 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 4 (Fishfinder 90 shown) A B1 F E D (Fishfinder 140) (Fishfinder 90) C B2 G (Fishfinder 90) S (Cable not shown) Packing List (one of each, unless otherwise noted): H I I--Trolling motor mount gasket 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 M N O P Q R Fishfinder 90/140 Owner's Manual INSTALLING YOUR FISHFINDER Installing the Transducer Assembling the Transducer 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. 4. Place the remaining 5 mm flat washer on the exposed end. Install the 10-32 lock nut (L) tight. You can tighten the transducer further after installation Cable tie slot on the boat. Mounting the Transducer on a Trolli ...