Lowrance electronicメーカーX-20Aの使用説明書/サービス説明書
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X-20A INSTALLATION AND OPERATION INSTRUCTIONS LITHO IN U.S.A. 988-0105-36 •LOWRANCE ELECTRONICS, INC. 12000 E. SKELLY DR., TULSA, OK 74128 PDF compression, OCR, web-optimization with CVISION's .
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26 TABLE OF CONTENTS INTRODUCTION 1 INSTALLATION 1 POWER CONNECTIONS 2 KEYBOARD BASICS 3 OPERATION 5 SENSITIVITY 5 CHART SPEED 7 RANGE 8 ZOOM 8 DIGITAL 9 FISH I.
4. The boat must be moving at aslowtrolling speed toseefish arches. If the boat is motionless, fish stay in the cone, showing on the display as straight horizontal lines. ELECTRICAL NOISE A major cause of sonar problems is electrical noise. This usually appears on the sonar's display as random patterns of dots or lines.
Weak bottom echo, digital readings erratic, or no fish signals (cont4: INTRODUCTION 2. Electrical noisefromthe boat's motorcan interfere wlththe sonar. This causes the sonar to automatically increase its Discrimination or noise rejection feature.
Power Connections The X-20A operates from a 12 volt battery system. Attach the power cable to an accessory or power buss. If you have problems with electrical interference, then attach the cable directly to the battery. Electrical interference shows as random dots on the display whenever the boat's engine or an accessory is on.
thus marked, you can make your turn and come back to fish in exactly _.a1.J the right spot. This is essential when you're far from shore on a big lake. Unless you mark the school of fish when you're over it, you may not be able to find it again.
SENS. This key and the arrow keys adjust the graph's sensitivity. -1 (The digital's sensitivity is adjusted by the unit automati- cally.) The receiver has 32 steps of adjustment. ______ CHART SPEED IUIi'I Vary the speed of the chart with this key and the arrow - keys.
WATER TEMPERATURE AND THERMOCLINES Waler 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 waler. During lhe winter, colder water slows down their metabolisrri.
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.
Both 8 degree and 20 degree transducers give accurate bottom read- ings, even though the bottom signal is much wider on the 20 degree model. This is because you are seeing more of the bottom. Remem- ber, the shallow edge of the signal shows you the true depth.
RANGE TRANSDUCERS AND CONE ANGLES The range automatically changes to keep the bottom signal on the display when the unit is in automatic. The range cannot be changed when the unit is in the automatic mode. The range can be changed in manual mode. There are six ranges available: 0-5, 15, 30, 60, 120, and 180 feet.
MODE 5 - All chart, High Speed Scroll. In this mode the chart scrolls at high speed. The chart speed can be adjusted with the CHART SPEED key if desired. a) Chart uses full screen. b) No digital depth indicator. c) No FASTRAK. d) No automatic operation al- lowed.
FISH I.D. 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. The remaining suspended targets are usually fish.
The X-20A has five different screen modes. To change modes, press the MODE key. Keep pressing the MODE key until the desired screen appears. A summary 01 the different screen modes follows. MODE 1 - This is the de- fault mode used when the unit is first turned on.
CHART ALARM To set the Chart Alarm, press the CHART ALARM key on the keyboard. The words " Chart Alarm" flashes in the lower right corner of the screen. A vertical bar also displays on the left side of the screen. It will stay on the screen for eight seconds or for eight seconds after you have finished adjusting it.
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Lowrance electronic X-20Aをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはLowrance electronic X-20Aの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Lowrance electronic X-20Aの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Lowrance electronic X-20Aで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Lowrance electronic X-20Aを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はLowrance electronic X-20Aの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Lowrance electronic X-20Aに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちLowrance electronic X-20Aデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。