Instruction/ maintenance manual of the product X-20 Lowrance electronic
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X-20 INSTALLATION AND OPERATION INSTRUCTIONS LITHO IN U.S.A. 988-0105-17 •LOWRANCE ELECTRONICS, INC. 12000 E. SKELLY DR., TULSA, OK 74128 PDF compression, OCR, web-optimization with CVISION's P.
TABLE OF CONTENTS All features and specifications subject to change without notice. 29 — I A 4 I ZOOM 1 Cr AU ZOOM a ASH ID s.r jfl JLj 1 1 1 3 3 4 7 7 9 10 10 11 12 13 13 14 15 15 15 16 18 19 20 23.
SENSITIVITY - The ability of a sonar unit's receiver to display targets. Increasing the sensitivity allows weaker targets to be displayed. Also called "gain".
electrical interference, then attach the cable directly to the battery. OPERATING FREQUENCY - Frequency of a sonar unit's transmitter Electrical interference shows as random dots on the display whenever the boat's engine or an accessory is on.
The Discrimination feature on Lowrance sonar units removes many false signals from other sonars, acoustic and electrical sources, and more. FISH ALARM - An alarm that activates when a fish or suspended object is detected. FISH ARCH - A sonar with good resolution and definition can display suspended targets as upside down "Vees" or arches.
KEYBOARD BASICS This section gives a brief explanation of the keyboard. Read the Operation section for a detailed description of each key's operation. ON OFF L J These keys turn the unit's power on and off. To turn it on, simply press the ON key.
BAIT FISH The importance of bait fish to successful fishing can't be over-empha- sized. They are the principal food of all game fish in most waters. Bait fish are the plankton feeding forage fish, such as minnows and shad. Bait fish can also be the young of game fish, such as crappies, bluegill, and bass.
1 MODE _______ The X-20 has five different screens" or modes of opera- tion. Use this key to switch between modes. fl 1 FISH I.D. • j This key turns the Fish l.D. feature off and on. r 1 FISHALARM I • 1101 Press both the Fish ID. and the AUTO key at L.
WATER TEMPERATURE AND THERMOCLINES OPERATION Water temperature has an important-if not controlling-influence upon the activities of all fish. Fish are cold blooded and their bodies are always the temperature of the surrounding water. During the winter, colder water slows down their metabolism.
With high sensitivity settings, a second bottom echo (second echo) may appear. This is normal. It's caused by the returning signal reflecting off the surface of the water.
r ci 3.; ZOOM 11 flSH D i El Fish arches are created when the cone of sound passes over a fish. The distance to a fish when the cone first strikes it is shown as "A" on the next page. When the center of the cone strikes the fish, the distance is shorter, as shown in "B".
RANGE Both 8 degree and 20 degree transducers give accurate bottom read- The range automatically changes to keep the bottom signal on the display when the unit is in automatic. The range cannot be manually changed when the unit is in the automatic mode.
iii _ta sa • •a Cu a h-in -IL, TRANSDUCERS AND CONE ANGLES The sound waves from the transducer spread out into the water in a cone shaped beam. This looks much like the beam from a flashlight. The angle between the outside edges of the cone is the cone angle.
FISH I.D. MODE 3 - Big digital. The Fish 1.0. feature is automatically on when the unit is first turned on. The computer inside the unit analyzes all echoes, filtering out unwanted signals. It helps eliminate surface clutter, thermoclines, and other un- desirable signals.
MODE The X-20 has five different screen modes. To change modes, press the MODE key. Keep pressing the MODE key until the desired screen appears. A summary of the different screen modes follows. mode used when the unit is first turned on. p 'in —H-I AUTO When the unit is first turned on, the automatic feature is enabled.
CHART ALARM n Li g RANGE 1 20 / When the "Chart Alarm" signal is on, the alarm is active. If you wish to view the Chart Alarm bar, simply press the CHART ALARM key. The bar will be displayed for eight seconds. Any target that appears on the left side of the screen in the area covered by the chart alarm bar will trigger the alarm.
An important point after buying a device Lowrance electronic X-20 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lowrance electronic X-20 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lowrance electronic X-20 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lowrance electronic X-20 you will learn all the available features of the product, as well as information on its operation. The information that you get Lowrance electronic X-20 will certainly help you make a decision on the purchase.
If you already are a holder of Lowrance electronic X-20, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lowrance electronic X-20.
However, one of the most important roles played by the user manual is to help in solving problems with Lowrance electronic X-20. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lowrance electronic X-20 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
