RaymarineメーカーL470の使用説明書/サービス説明書
ページ先へ移動 of 102
FishFinder L470 Instr uction Manual Raymarine.
iv Contents Echo sounding – How it wo rks (inside front cover) FishFinder L470 – Features and functions i F or inf ormation and ser vice ii 1 Introduction 1 About the FishFinder L470 1 System Comp.
v Lamp/Contrast Menu 29 Operating P ages 30 FishFinder P age 32 Choosing a F requency 37 Fish Indications 38 Bottom Indications 39 Window P age 41 Sidelooker P age 43 Digital Page 47 P erformance Mode.
vi Setup Inst r uctions f or Sideloo k er 76 Sideloo k er Range Menu Item 77 Sideloo k er Sensitivity Me n u Item 78 Sideloo k er Cha r t Speed Menu Item 78 Sideloo k e r Vi e w Menu item 79 Combining.
vii List of Figures Figur e Pa ge Unit in Use Inside front cover F ront P anel i 1-1 T ypical Installation 1 2-1 T ransducer T ypes 5 2-2 Assembling the T ransducer Br a cket 6 2-3 T ransducer Mounted.
viii 4-6 F requency Menu Item 61 4-7 Log Reset Men u Item 63 4-8 Reaching the System Setup Men u 64 4-9 System Setup Men u 64 4-10 Zoom Select Men u Item 71 4-11 Zoom Screen Split/Full Menu Item 72 4-.
1 Introduction Fig. 1-1 T ypical Installation 1 – Intr oduction About the FishFinder L470 The FishFinder L470 is a system that uses sound wa v es (“sonar”) to detect fish and show the bottom of a lake or sea. The system includes a transducer and a display unit, connected b y a cable .
2 Introduction System Components The FishFinder L470 consists of a compact displa y unit connected to a transducer . The transducer is attached to the boat and extends into the water . Standard Equipment When you unpac k your FishFinder L470, you should find the f ollo wing standard equipment in the carton.
3 Introduction Description Par t No . Sidelooker transom-mount transducer M78930 Sidelooker transducer f or trolling motor mounting. Companion with M78928 downlooker depth/temp tr ansducer, with 12 ft. (3.6 m) cable and hardware M78929 Extension cable, 5 pin (15 ft.
Installation 4 2 – Installa tion The installation process has f our par ts: • Mounting the transducer • Mounting the display unit • Connecting the cab les for the transducer and power supply • Calibrating the displa y unit About the T r ansducer Se veral diff erent kinds of tr ansducers can be used with this unit.
Installation 5 Fig. 2-1 T r ansducer T ypes Selecting the Cor r ect Type of T ransducer Before you begin the installation, doub le-check to be sure y o u hav e the correct type of transducer . Each kind of transducer is designed for a par ticular type of use.
Installation 6 Fig. 2-2 Assembling the T r ansducer Brack et Use a trolling motor transducer if – . . . y ou want to attach the transducer to a trolling motor . (Not recom- mended for deep water oper ations.) Use a Sidelooker transducer – . . . f or searching for fish or structure on either side of the boat.
Installation 7 Fig. 2-3 T r ansducer Mounted on T r ansom Fig. 2-4 T ransducer Bra ck et, Side View • If your boat has twin propellers (outboard or inboard-outboard), place the transducer near the centerline of the boat. • Do not mount the transducer behind any hull fittings, intak es , or other par ts which extend from the hull.
Installation 8 Fig. 2-6 Mounting the T ransducer Fig. 2-5 Correct Mounting P osition V er tical transom – place wedge this wa y A verage tr ansom angle – no wedge necessary Sloping transom – place wedge this wa y For fiberglass hull – 1/8" to 1/4" (3.
Installation 9 measured from the bottom of the transom. • If considering the Sidelooker option, look for a mounting location where the Sidelooker arra y will not be b lock ed by the engine housing or other mounted hardware.
Installation 10 Fig. 2-7 Installing the Sidelooker T r ansducer 7. Mov e the brac ket up or down so that the leading edge of the trans- ducer has the clearance sho wn in Fig. 2-5. 8. Once the brack et is in the correct position, y ou can tighten the screws.
Installation 11 Installation Notes – Thr u-Hull T r ansducer Detailed instructions for this installation will be included with the trans- ducer . In this section, we will note just a f ew important points. 1. Ear lier we listed three general rules for placing transducers.
Installation 12 6. If the hull of the boat has a core-type hull, y ou will need to follow some special mounting procedures . The core material must be protected from an y water which may leak from the inside of the boat. (If the core material is allowed to remain wet, it ma y rot and weaken the hull.
Installation 13 Installation Notes – T rolling Motor Transducers Both Downlooker and Sidelook er transducers may be installed on a trolling motor . See Fig. 2-8. Detailed instructions for these installations will be included with the transducer(s). The Downlooker tr ansducer is mounted on the horizontal gear case of the motor .
Installation 14 Installa tion Notes – T ransducer for Speed and T emperatur e Onl y This type of transducer may be used with a thru-hull transducer which reads depth only . The speed/temperature transducer is attached to the transom of the boat. Detailed instructions for this installation will be included with the transducer .
Installation 15 Fig. 2-9 Suppression Ferrites transducer cab le separated as far as possible from all other wires . This is especially impor tant with wiring for the boat ’ s ignition, alter na- tor , or tachometer. It is also helpful to k eep the tr ansducer cable a wa y from the FishFinder power cab le.
Installation 16 Fig. 2-10 Installation on Brack et Mounting the Display Unit – Standard Mount Y ou may mount the displa y unit on any flat surface using the brac ket supplied. See Fig. 2-10. (There is also an optional kit which allows y ou to flush-mount the display in a flat panel or dashboard).
Installation 17 Fig. 2-11 Dimensions 3-29/32"(99 mm) 4-7/32"(107 mm) 6-5/8" (169 mm) 5-13/16" (147 mm) 8-1/4" (210 mm) Hole 3/16" (5 mm) 2-25/32" (70 mm) 2-21/32&quo.
Installation 18 Mounting the Display Unit – Flush Mount In order to do this installation, y ou will need the optional flush mounting kit (part no. M99-138). See Fig. 2-12. 1. Select a mounting location on the dashboard or control panel. Choose a clear , flat area at least 7" x 7" (180 mm x 180 mm).
Installation 19 Fig. 2-13 Disassembling from Bra cket 6. Separate the display unit from the mounting br a ck et. (See Fig. 2-13.) Press the large button in the center of the brac k et to separate the brack et arms. The display unit is attached to the arms by two scre ws.
Installation 20 Cable feed-thru cap Cable clamp 1" (25 mm) Hull projections Fiberglass: 1/4" (6mm) Aluminum: 1/2" (13 mm) Fig. 2-14 Installing Cable on T ransom 1. Route the cable up and ov er the top edge of the transom. See Fig. 2-14.
Installation 21 When you attach the e xtension cable, be sure that the connections are tight and watertight. Use Do w Corning DC-4 or an equivalent sealing compound to protect the connector assemblies. 5. At the rear of the display unit, plug in the transducer cab le using the ke yed connector .
Installation 22 2. Plug the cable from the depth-only tr ansducer into the receptacle connector on the optional speed- and temperature-only transducer . The speed- and temperature-only tr ansducer then connects at the transducer receptacle of the FishFinder L470.
Installation 23 Fig. 2-17 DC P ower Connections terminal (+), and the bla c k wire to the negative terminal (-). The negative terminal may also be called “ ground ” or “ earth. ” (The displa y unit is internally protected if you accidentally rev erse the polarity of the power wires .
Installation 24 Note – Press firmly when inser ting the power cab le and transducer cab le to ensure a tight seal. 8. When y ou press the PWR button, the displa y unit should tur n on. If the unit will not tur n on and y ou suspect that you ma y have re v ersed the pow er connections, chec k the DC power lines all the w ay bac k to the battery .
Installation 25 higher v alue f or Speed Cal. If the display unit is reading high , use a smaller number f or Speed Cal. Y ou may enter an y v alue between 75 and 125. 4. The temperature sensor is usually ve ry accurate, but you can adjust the calibration using the entry for “ T emp Cal.
26 Ope r ating Inst r uctions Fig. 3-1 Displa y P anel 3 – Oper a ting Instr uctions In this section of the manual, we will explain ho w to operate the unit. (Setup instructions are included in the next section.) Below is a dra wing of the displa y unit.
27 Operating Instructions Page Control Pa d Up and down arro ws – ( < and V ) During setup – Use these controls to call up a choice or mov e to the ne xt line on a men u. If the Zoom display is tur ned on – If the manual zoom feature is turned on, these will mov e the zoom display up or down.
28 Operating Instructions BOT LOCK The “ Bottom Lock ” Mode shows a “ bottom-up ” vie w . The bottom is used as a reference, and all depths are mea- sured from the bottom up. F or more inf ormation, see the section on “ P erformance Modes ” on page 50.
29 Operating Instructions Lamp/Contrast Menu Press PWR The Lamp/Contrast Menu appears when y ou first press the PWR button and turn on the power . (Y ou will be able to see part of the main FishFinder Page behind the Lamp/ Contr ast menu.
30 Ope r ating Inst r uctions Sav e settings When the settings on this display are correct, press the CLEAR button to sav e the settings and go to the FishFinder P age . Opera ting P a ges The L470 FishFinder has f our “pages, ” or nor mal display s.
31 Operating Instructions FishFinder Page Digital Page Windo w Page Sidelook er Page Retur n to FishFinder P age (Only if Sidelooker feature is turned on) Fig.
32 Operating Instructions FishFinder P a ge Figure 3-4 sho ws a typical FishFinder display . (The FishFinder Page is also called the “ char t ” or “ bottom graph ” displa y .
33 Operating Instructions “chart speed. ” Y ou can adjust this using the “Setup Menu. ” (See Section 4.) Many of the items on this displa y appear in the other display pages. Since you are lik ely to use the FishFinder P age most often, we will explain all of these items here.
34 Ope r ating Inst r uctions Fish alar m set The FishFinder also has an alar m which will sound when- ev er it detects a fish. When this alarm is set, the fish symbol appears at the top of the display . If the alarm is triggered and the buzzer has been tur ned on (in the System Setup Menu), the buzz er will sound for a moment.
35 Operating Instructions the unit to use both frequencies at the same time ( “ dual frequency ” ), or ev en display both frequencies at once ( “ split screen ” ). Auto frequency on (A) An “ A ” indication here shows that the unit is choosing the frequency automatically .
36 Ope r ating Inst r uctions From the System Setup Men u, y ou can tur n this item off or change the units used for this displa y . Fish symbol This indicates that the FishFinder sees a fish. Generally , the larger the fish symbol appears, the larger the fish.
37 Operating Instructions Choosing a Frequenc y W e said that the FishFinder uses sound wav es to “ see ” through the water under the boat. The “ frequency ” is a measure of ho w f ast the sound wa v es change or “ vibrate . ” The FishFinder uses sound wav es with tw o different frequencies – 50 kHz and 200 kHz.
38 Ope r ating Inst r uctions Fish Indications Ev en using adv anced sonar technology , it is sometimes hard to detect a fish in the water . The body of a fish is just a little more dense than the surrounding water . There is really nothing v ery solid for the sound w a ves to bounce off of .
39 Operating Instructions fish symbols on the display . A fish with a large air sac will produce a large fish symbol, while a fish with a small sac will produce a small symbol. The symbol also indicates which of the two frequencies was used to locate the fish.
40 Ope r ating Inst r uctions Hard (Sand) Rocks Soft (Mud) Fig. 3-6 Bottom Conditions reach through this lay er , and may be reflected b y a more solid la yer belo w . It is also possible that the sound wa v es are making tw o complete trips – hitting the seabed, bouncing off of the bottom of the boat, then reflecting off the seabed again.
41 Operating Instructions W indo w Page The Windo w P age is a flexibl e f eature which allows y ou to combine se veral diff erent kinds of infor mation on the displa y of the unit. See Fig. 3-7. The right side of the Window Page is a half-screen v ersion of the Fish- Finder P age .
42 Operating Instructions Fig. 3-8 Options fo r Window Pa g e Option A Option B Option C Option D Option E Option F Option G Option H.
43 Operating Instructions Rock Sidelooker transducer 11 ° beam aimed down at 4 ° angle Boat Fish Fish 31 ° beam Rock Transducer mounted on trolling motor The digital displays in Window options A, B, C , D , and E all behav e identically to the corresponding ones in the full-screen Digital Page (see page 47).
44 Operating Instructions The optional Sidelook er transducer transmits two acoustic beams—one to the port side of the boat, and one to the starboard. These are displa yed on the left and right halves of the Sidelook er Page. See Fig. 3-9. Once the Sidelook er feature has been tur ned on, you can reach the Sidelook er page easily .
45 Operating Instructions Underwater objects such as submerged tree stumps or rocks can also be detected by the Sidelook er transducer. These objects usually appear as thick er v er tical targets. The Sidelooker sounding beam is transmitted v ery close to the surface of the w a ter .
46 Operating Instructions measured sideways . See Fig. 3-9. The units used here are chosen using the entr y for Depth Units in the System Setup Menu. If you hav e selected feet (FT) or fathoms (F A), the distance shown here will be measured in f eet. If you ha v e selected meters (M), the distance shown here will be in meters.
47 Operating Instructions Digital P age The Digital Page presents se veral measurements at the same time using large, easy-to-read digital numbers . T o select the Digital Pa ge, press either the < or > button on the P age Control Pad until the Digital P age appears.
48 Operating Instructions the PWR button. The Log may be reset to zero from the Setup Menu. (See page 63 f or details.) Battery The measured DC voltage of y our boat ’ s battery . Elapsed Time Th e amount of time which has passed since tur ning the unit on, in Hours : Minutes : Seconds.
49 Operating Instructions Fig. 3-12 P erfo r manc e Modes FishFinder Page ZOOM A-SCP Zoom Mode A-Scope Mode BOT LOCK Bottom Lock Mode.
50 Operating Instructions P erfor mance Modes This unit has three “ perf or mance ” modes which can be used to add to the standard FishFinder P age. These are the Zoom, A-Scope and Bottom Lock Modes. Each mode presents the ra w inf or mation from the transduc- ers in a special wa y .
51 Operating Instructions Many of the items presented b y the Zoom Mode are the same as those on the FishFinder Pa ge. There are a f ew additional items: Zoom magnification This indicates the amount of “ zoom ” or magnification. Y ou alwa ys set the amount of zoom manually .
52 Operating Instructions A-Scope (Bottom Co vera ge) Mode On the FishFinder Page the bottom g raph is “ drawn ” after the FishFinder receiv es several echoes. This has the effect of sho wing a record of the bottom contour . The A-scope Mode shows r aw sonar data directly from the transducer beam.
53 Operating Instructions create wider lines. Unlike the scrolling FishFinder P age , the A-Scope does not sho w a histor y of scans; instead, it is a “ real-time ” display . The shape of the A-Scope displa y shows the result as the sonar beam spreads as it penetrates deeper into the water .
54 Operating Instructions Bottom Lock Mode The normal display on the FishFinder is a “ top-do wn ” vie w , as if it was seen from the surf ace of the water . The Bottom Loc k Mode shows a “ bottom-up ” view . The bottom is used as a reference , and all depths are measured up from the bottom.
55 Operating Instructions the selected range, then Bottom Loc k will not display the bottom image. Bottom Lock Range The range for the Bottom Lock image is set independently from the master range setting for the FishFinder . This “ Bottom Lock Range ” is measured up from the bottom, rather than do wn from the surf ace.
56 Setup Instructions Fig.4-1 Setup Menu Items (from FishFinder P age) 4 – Setup Instr uctions The Setup Menu Press the SETUP b utton to enter the Setup Menu. The menu items a vail- ab le will change, depending on the displa y or combinations of displays the unit is presenting when y ou press SETUP .
57 Setup Instructions Fig. 4-2 Range Menu Item order will be different if y ou star t from the Zoom or Bottom Lock Modes.) T o mov e from one men u item to another , press the < and V arrows of the P age Control Pad.
58 Setup Instructions line so you can choose the range y ou want. Use the < and > arrows of the P age Control Pad to make a selection. Here are the choices: P ossible Range Settings (Auto or Man.
59 Setup Instructions there is no number next to the bar g raph, this tells you that the Sidelooker is being adjusted. F rom the menu item f or the range setting, press the V arrow of the P age Control P ad. The next menu item will allo w you to set the sensitivity .
60 Setup Instructions Section of bottom shown at higher chart speed - Same section shown at slower chart speed - Display shows more detail Display shows longer "history" Fig. 4-4 Changing the Char t Speed Setting Char t Speed Setting Most of the displa ys on the FishFinder show a record of the signals the unit has receiv ed.
61 Setup Instructions Fig. 4-5 Char t Speed Menu Item Fig. 4-6 F requency Menu Item Char t speed This adjusts the speed at which the info r mation mov es across the display . Use the < and > arrows of the P age Control Pad to change the chart speed.
62 Setup Instructions A U T O frequency If the frequency is set to AUT O , one of the two single frequencies (200 or 50 kHz) will be automatically selected, depending on the depth of the bottom. If the bottom is deeper than 350 feet (or 60 fathoms or 100 meters), the unit will use the 50kHz frequency .
63 Setup Instructions If you are using one of the dual frequency (or split) selections, some of the fish may appear in the wide 50 kHz beam, but not in the narro wer 200 kHz beam. Fish which appear in the narrow 200 kHz beam are located more directly under the transducer , and the symbol will be solid black.
64 Setup Instructions FishFinder Page System Setup Menu Fig.4-8 Reaching the System Setup Men u System Setup Menu Y ou can reach the System Setup Menu at an y time by pressing SETUP twice. See Fig. 4-8. (If you ha v e called up the Windo w P age, with option F , G, or H selected, you must press SETUP a third time.
65 Setup Instructions T o change one of the items , use the < and V arrows of the P age Control Pad to mo ve up or down in the displa y . This will highlight an area on the display where the unit is ready to mak e a change. (This is lik e the “ cursor ” on a computer .
66 Setup Instructions shown using a more solid area of b lack or g ra y . This feature helps to sho w the diff erence between the strong echo from the bottom and the weaker echoes from fish or weeds near the bottom. The image sho wn in Fig. 3-4 is presented with the White Line f eature tur ned on.
67 Setup Instructions unit says that y ou are moving faster than you really are , you can adjust the Speed Cal figure to a smaller number . If the unit says that y ou are moving slo wer than y our actual speed, use a larger number f or Speed Cal. The setting can range betw een 75 and 125.
68 Setup Instructions T o turn this feature off , press the < control until the display indicates zero fe et, fathoms or meters . When these values are displayed in the Shallo w Alarm “ pop up ” window , yo u will notice that the menu item in the System Setup Menu will read “ Off.
69 Setup Instructions operating with dual frequencies , the buzzer will produce two tones — one right after the other. If a fish has been detected by the 200 kHz beam, a high tone will be f ollo wed by a lower tone. If the fish is detected b y the 50 kHz beam, the low tone will sound first, follo wed b y the higher one .
70 Setup Instructions Depth Units This item sets the units used by the depth display . Y ou can choose feet (FT), fathoms (F A), or meters (M). Use the < and > controls to mak e y our choice. Speed Units This item sets the units used by the speed display .
71 Setup Instructions Fig. 4-10 Zoom Select Menu Item Setup Menus for Zoom Mode The “ Zoom ” setup menus allow y ou to customiz e the Zoom feature to y our par ticular application. When the unit is in the Zoom Mode , these two men u items are added to the existing Setup Menu of the P age currently se- lected.
72 Setup Instructions Manual Zoom If you select Manual Zoom, y ou can choose the position of the zoom area y ourself. Use the < and > arrows of the Page Control P ad to select Manual Zoom. Once you make this choice , you can set the zoom area yourself.
73 Setup Instructions Fig. 4-12 Bottom Loc k Range Menu Item If yo u are done with your setup changes , press the CLEAR button to go bac k to the normal display . If you press the V arrow of the P age Control P ad at this point, the next menu will be the Range men u shown in Fig.
74 Setup Instructions Fig. 4-13 Bottom Loc k Split/Full Menu Item If yo u are done with your setup changes , press the CLEAR button to go bac k to the normal display .
75 Setup Instructions Fig. 4-14 Digital Setup Menu Item Setup Menu f or W indow P a ge Y ou can choose some of the elements which are presented on the Windo w Pa ge . Y ou will recall that you can step to this pages b y using the < or > controls on the Page Control P ad.
76 Setup Instructions R esetting from the Digital Page T wo functions can be reset from the Digital P age. These are Elapsed Time and Log Reset. When the unit is displaying the Digital P age, press the SETUP button. The unit will present a menu item showing the current reading for the log.
77 Setup Instructions Press the > control until yo u see the Sidelook er Page. If yo u press SETUP while the Sidelook er Page is visib le, the unit will present the menu item sho wn in Fig.
78 Setup Instructions Fig. 4-16 Sidelooker Sensitivity Menu Item Sidelook er Sensitivity Menu Item This menu item allows y ou to set the sensitivity for the Sidelooker f eature only . (This will not change the sensitivity setting f or the other display pages .
79 Setup Instructions Fig. 4-18 Sidelooker Vie w Menu Item mov e the bar all of the wa y to the left, the FishFinder will “ freez e ” and hold the current display . (The depth indicator will continue to update.) If yo u are done with your setup changes , press the CLEAR button to go back to the normal displa y .
80 Setup Instructions Combining Displays The FishFinder L470 unit can combine displays in man y different w ays. This allows y ou to make maximum use of the display area, and choose only the info r mation you really want. Here are some of the w ays the images can be combined.
81 Setup Instructions Window P age with Sidelooker – Y ou can combine a Sidelooker view with the Window P age displa y . Figure 4-20 shows an e xample where the Sidelooker view has been combined with the Zoom Mode in the Window Pa ge. Notice that, again, the display is split ve r tically down the middle .
82 Setup Instructions Default Settings When the FishFinder is ne w , it uses a number of preset “ def ault ” settings . Here is a list: Function Default - US model Def ault - Eur ope model Range A.
83 Maintenance and T roubleshooting 5 – Maintenance and T r oubleshooting P er iodically check the displa y unit, cable, and tr ansducer. Be sure all components are free of corrosion and are securely mounted. Check all cables for signs of chafing or abrasion.
84 Maintenance and T roubleshooting will change to the f actory defaults . See the default settings on page 82. 2. If the pow er wir ing includes a fuse, it may be b lown. Also check the circuit breaker or main battery s witch. 3. Y ou may ha ve re versed the pow er connections.
85 Maintenance and T roubleshooting 4. The transducer cab le ma y be damaged. Check for an y point where the wiring may be pinched or bent. Look f or signs that water has gotten into the cable. If the transducer cab le is damaged, the transducer and cab le should be replaced as a unit.
86 Maintenance and T roubleshooting tions f or the System Setup Menu. 2. The FishFinder will not display arches unless the boat is mo ving. If the boat is stopped, fish will appear on the displa y as straight lines. 3. The transducer ma y not be aimed straight do wn.
87 Maintenance and T roubleshooting The speed or log readings are wrong – 1. The paddle wheel on the transducer may be f ouled. Clean the par ts as described in the section on “ Cleaning Instructions. ” 2. Check the speed calibration. Use the item for “ Speed Cal ” on the System Setup Menu .
88 Maintenance and T roubleshooting For technical suppor t Please call 1-800-539-5539, e xtension 2444 or (603) 881-5200 , extension 24 44. The Raymar ine F ax number is 1-603-634-4756. Our T echnical Suppor t Specialists are available to ans w er questions about installing, operating, and troub leshooting all Ra ymarine products.
89 Maintenance and T roubleshooting Ra ymarine in Europe In Europe, support, ser vice, and accessories are av ailable from Raymarine Limited: Raymarine Limited Anchorage P ark, P or tsmouth PO3 5TD , England T e l: +44 (0) 23 9269 3611 F ax: +44 (0) 23 9269 4642 T echnical suppor t is av ailable via the Internet.
90 Maintenance and T roubleshooting.
91 Specifications 6 – Specifica tions General Infor mation Display panel FSTN high-contrast LCD Panel dimensions 3.8" H x 3.8" W (96 mm x 96 mm) No.
92 Specifications FishFinder Functions Range Auto or man ual FT (feet) 5 10 15 20 3 0 40 50 60 80 100 150 200 250 300 400 600 800 1000 1500 2000 2500 F A (f athoms) 1 2 3 4 5 8 10 15 20 25 30 40 50 60.
93 Specifications Connector Diag r ams 12 1 2 3 4 5 6 7 8 9 Pin 1 12V DC (+) Pin 2 Ground (-) DC power connector Pin 1 Depth TX+ Pin 2 Depth TX- Pin 3 L Select Pin 4 Temp Pin 5 R Select Pin 6 Speed si.
Glossary 94 Glossar y of T er ms Aft : Near or toward the rear part of the boat (nautical ter m). Bac kground noise: False or meaningless echo returns produced by bub bles , water turbulence, or debris Bow: The front of the boat (nautical ter m). Cavitation: Air bub bles in the water which aff ect the readings of a transducer .
95 Glossary LCD: “ Liquid Crystal Display ” - A technology used to produce flat-panel displa ys. Nautical mile: 6076 feet Por t: Left side of the boat, when facing the bo w (nautical ter m). PVDF: “ Poly Vinylidene Fluoride ” – A unique polymer plastic that has the ability to conv er t sound wav es into electr ical impulses.
Limited Warr anty Certificate Raymarine warrants each new Light Marine/Dealer Distributor Product to be of good materials and workmanship, and will repair or exchange any parts proven to be defective in material and workmanship under normal use for a period of 2 years/24 months from date of sale to end user , except as provided below .
デバイスRaymarine L470の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Raymarine L470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Raymarine L470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。Raymarine L470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。Raymarine L470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。
Raymarine L470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Raymarine L470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、Raymarine L470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Raymarine L470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。
