Pub. 988-0151-411 www.lowrance.com
Fish-finding & Depth Sounding Sonars

X86 DS & X86 TX

Installation and Operation Instructions
Copyright 2006 Lowrance Electronics, Inc. All rights reserved. No part of this manual may be copied, reproduced, republished, transmitted or distributed for any purpose, without prior written consent of Lowrance Electronics. Any unauthorized commercial distribution of this manual is strictly prohibited.
Lowrance is a registered trademark of Lowrance Electronics, Inc.
Lowrance Electronics may find it necessary to change or end our policies, regulations, and special offers at any time. We reserve the right to do so without notice. All features and specifications subject to change without notice. All screens in this manual are simulated. On the cover: X86 DS shown.
For free owner's manuals and the most current information on this product, its operation and accessories, visit our web site:

www.lowrance.com

Lowrance Electronics Inc. 12000 E. Skelly Dr. Tulsa, OK USA 74128-2486 Printed in USA.

Table of Contents

Section 1: Introduction...1 Specifications: X86 DS and X86 TX..1 How Sonar Works...2 Preparations....3 Section 2: Installation & Accessories..5 Recommended Tools and Supplies..5 Selecting a Transducer Location...5 How low should you go?..6 Shoot-thru-hull vs. Transom Mounting..7 Transom Transducer Assembly and Mounting..8 Trolling Motor Bracket Installation...11 Transducer Orientation and Fish Arches..12 Shoot-Thru-Hull Preparation...13 Shoot-thru-hull Installation...15 Power and Cable Connections..16 Mounting The Sonar Unit: In-Dash or Bracket..18 Portable Installation...21 Portable Transducer Assembly...22 Section 3: Operation...25 Keyboard Basics...25 Memory....26 Menus...26 Display...26 FasTrack...27 Pages....28 Full Chart...28 Depth Range....29 Zoom....30 Sensitivity...31 Grayline....33 Chart Speed...34 Frequency...34 Fish I.D...35 FishTrack...36 Alarms....37 Fish Alarm...37 Depth Alarms...38 Shallow Alarm...38 Deep Alarm....39 Battery Alarm...39 Noise Rejection and ASP...40 i
Depth Display...41 Temperature Display...41 Voltage...42 Units....42 Backlight...43 Contrast....43 Simulator....44 Set Language...44 Software Information...44 Reset Options...44 Troubleshooting...45

Section 1: Introduction

Thank you for buying a Lowrance sonar! Your unit is a high-quality sonar designed for both professional and novice fishermen. All Lowrance sonars have an automatic mode that finds and displays the bottom, fish, underwater structure and more right out of the box. All you have to do is press the on (PWR) key. To get started with your Lowrance sonar, first read the installation section. It contains instructions for mounting the sonar unit, the transducer and any optional accessories, such as a speed sensor. Following recommended installation practices will pay off in optimum performance of your Lowrance sonar. Improper installation can cause problems down the road, especially if the transducer is badly mounted. After you've read the installation instructions, install the unit and accessories. Then, read the rest of the manual. The more you know about your sonar, the better it will work for you.
Capabilities and Specifications: X86 DS and X86 TX
General Case size:.. 5.4" H x 6.9" W x 3.4" D (13.8 cm H x 17.6 cm W x 8.6 cm D). Sealed and waterproof; suitable for saltwater use. Display:..4.5" (11.4 cm) Film SuperTwist LCD display, 4-level gray scale definition with GRAYLINE. Resolution:..240V x 240H pixel resolution; 57,600 total pixels. Backlighting:.Incandescent backlit screen and keypad for night use. Input power:.10 to 17 volts DC. Current drain:.110 ma lights off; 250 ma lights on. Back-up memory:.Built-in memory stores sonar settings when unit is turned off. Languages:..11 International languages. Sonar Frequency:..83/200 kHz Transducers:.A compact Dual-Search Skimmer transducer with built-in temperature sensor is packed with the unit. Watts:..1,500 watts peak-to-peak; 188 watts RMS. 1
Depth capability:.To 1,000 feet (305 meters) with 83 kHz. Actual capability depends on transducer configuration and installation, bottom composition and water conditions. All sonar units typically read deeper in fresh water than in salt water. Depth display:.Continuous display. Audible alarms:.Deep/shallow/fish/battery. Automatic ranging:.Yes. Auto bottom track:.Yes. Zoom bottom track:.Yes. Surface water temp:..Yes. NOTICE! The storage temperature for your unit is from -4 degrees to +167 degrees Fahrenheit (-20 degrees to +75 degrees Celsius). Extended storage in temperatures higher or lower than specified will damage the liquid crystal display in your unit. This type of damage is not covered by the warranty. For more information, contact the factory's Customer Service Department; phone numbers are inside the manual's back cover.

Section 2: Installation & Accessories
These instructions will help you install your Skimmer transducer on a transom, on a trolling motor or inside a hull. Please read all instructions before proceeding with any installation. Your Skimmer transducer typically comes packaged with a one-piece stainless steel bracket for mounting it to the transom of your boat. The optional trolling motor mount uses a one-piece plastic bracket with an adjustable strap. These are "kick-up" mounting brackets. They help prevent damage if the transducer strikes an object while the boat is moving. If the transducer does "kick-up," the bracket can easily be pushed back into place without tools. Read these instructions carefully before attempting the installation. Determine which of the installation methods is right for your boat. Remember, the transducer installation is the most critical part of a sonar installation. Recommended Tools and Supplies If you prefer the option of routing the cable through the transom, you will need a 5/8" drill bit. The following installation types also call for these recommended tools and required supplies (supplies are not included):

Transom installation

Tools include: two adjustable wrenches, drill, #29 (0.136") drill bit, flathead screwdriver. Supplies: high quality, marine grade above- or belowwaterline sealant compound.
Trolling motor installations
Tools: two adjustable wrenches, flat-head screwdriver. Supplies: plastic cable ties.
Shoot-through hull installations
Tools: these will vary depending on your hull's composition. Consult your boat dealer or manufacturer. Supplies: 100 grit sandpaper, good quality epoxy adhesive. Selecting a Transducer Location 1. The transducer must be placed in a location that has a smooth flow of water at all times. If the transducer is to be mounted inside the hull, then the chosen location must be in the water at all times. If the transducer is not placed in a smooth flow of water, interference caused by bubbles and turbulence will show on the sonar's display in the form of random lines or dots whenever the boat is moving. 5
NOTE: Some aluminum boats with strakes or ribs on the outside of the hull create large amounts of turbulence at high speed. These boats typically have large outboard motors capable of propelling the boat at speeds faster than 35 mph. Typically, a good location on aluminum boats is between the ribs closest to the engine. 2. The transducer should be installed with its face pointing straight down, if possible. 3. If the transducer is mounted on the transom, make sure it doesn't interfere with the trailer or hauling of the boat. Also, don't mount it closer than approximately one foot from the engine's lower unit. This will prevent cavitation (bubble) interference with propeller operation. 4. If possible, route the transducer cable away from other wiring on the boat. Electrical noise from engine wiring, bilge pumps and aerators can be displayed on the sonar's screen. Use caution when routing the transducer cable around these wires.

CAUTION: Clamp the transducer cable to transom near the transducer. This will help prevent the transducer from entering the boat if it is knocked off at high speed. Good location
Poor location Good location Good location Poor angle Good and poor transducer locations.
How low should you go? For most situations, you should install your Skimmer transducer so that its centerline is level with the bottom of the boat hull. This will usually give you the best combination of smooth water flow and protection from bangs and bumps.

Transducer centerline

Transom
Hull bottom Align transducer centerline with hull bottom.
If you want to adjust the transducer slightly higher or lower, the slots in the mounting brackets allow you to loosen the screws and slide the transducer up or down. If you frequently lose bottom signal lock while running at high speed, the transducer may be coming out of the water as you cross waves or wakes. Move the transducer a little lower to help prevent this. If you cruise or fish around lots of structure and cover, your transducer may be frequently kicking up from object strikes. If you want, you may move the transducer a little higher for more protection. There are two extremes you should avoid. Never let the edge of the mounting bracket extend below the bottom of the hull. Never let the bottom the face of the transducer rise above the bottom of the hull. Shoot-thru-hull vs. Transom Mounting In a shoot-thru-hull installation, the transducer is bonded to the inside of the hull with epoxy. The sonar "ping" signal actually passes through the hull and into the water. This differs from a bolt-thru-hull installation (often called "thru-hull"). In that case, a hole is cut in the hull and a specially designed transducer is mounted through the hull with a threaded shaft and nut. This puts the transducer in direct contact with the water. Typically, shoot-thru-hull installations give excellent high speed operation and good to excellent depth capability. There is no possibility of transducer damage from floating objects, as there is with a transommounted transducer. A transducer mounted inside the hull can't be knocked off when docking or loading on a trailer. The shoot-thru-hull installation does have its drawbacks, though. First, some loss of sensitivity does occur, even on the best hulls. This varies from hull to hull, even from different installations on the same hull. This is caused by differences in hull lay-up and construction. Second, the transducer angle cannot be adjusted for the best fish arches on your sonar display. 7

Transom Transom

Position transducer mount on transom and mark mounting holes. Side view (left) and shown from above (right).
5. Attaching transducer to transom. Remove the transducer from the bracket and re-assemble it with the cable passing through the bracket over the bolt as shown in the following figures.
Route cable over bolt and through bracket. Side view (left) and shown from above (right).
Attach the transducer to the transom. Slide the transducer up or down until it's aligned properly with the bottom of the hull as shown in the preceding and following figures. Tighten the bracket's mounting screws, sealing them with the sealant compound. Adjust the transducer so that it's parallel to the ground and tighten the nut until it touches the outer washer, then add 1/4 turn. Don't over tighten the lock nut! If you do, the transducer won't "kick-up" if it strikes an object in the water.

Bottom of hull

Flat-bottom hull Deep-"vee" hull Align transducer centerline with hull bottom and attach to transom.
6. Route the transducer cable through or over the transom to the sonar unit. Make sure to leave some slack in the cable at the transducer. If possible, route the transducer cable away from other wiring on the boat. Electrical noise from the engine's wiring, bilge pumps, VHF radio wires and cables, and aerators can be picked up by the sonar. Use caution when routing the transducer cable around these wires. WARNING: Clamp the transducer cable to the transom close to the transducer. This can prevent the transducer from entering the boat if it is knocked off at high speed. If you need to drill a hole in the transom to pass the connector through, the required hole size is 5/8". Caution: If you drill a hole in the transom for the cable, make sure it is located above the waterline. After installation, be sure to seal the hole with the same marine grade above- or below-waterline sealant used for the mounting screws. 7. Make a test run to determine the results. If the bottom is lost at high speed, or if noise appears on the display, try sliding the transducer bracket down. This puts the transducer deeper into the water, hopefully below the turbulence causing the noise. Don't allow the transducer bracket to go below the bottom of the hull. Trolling Motor Bracket Installation 1. Attach the optional TMB-S bracket to the transducer as shown in the following figure, using the hardware supplied with the transducer. The internal tooth washer is supplied with the TMB-S.

Install the gimbal bracket. Orient the bracket so the arms slope toward the front of your unit.
Attach the unit to the gimbal bracket using the supplied gimbal knobs and washers. Slide the rubber washers onto the gimbal knobs then loosely screw the knobs into their sockets. Slide the unit into the bracket with the rubber washers to the outside of the bracket arms. Tilt the unit to the desired viewing angle and tighten the knobs finger tight. Portable Installation Like many Lowrance products, this sonar unit is capable of portable operation by using an optional portable power pack. The power pack and an optional portable transducer expand the uses of your sonar unit. The power pack makes it easy to use the unit on your boat or take it to the dock, on a float tube, on an ice fishing trip or as a second sonar in a friend's boat. The portable power pack can be used with eight "D" cell alkaline batteries or an optional sealed, rechargeable battery. For set-up directions, refer to the pack's instruction sheet.
"D" cell battery
Install batteries in power case battery adapter.
Portable Transducer Assembly Recommended tools for installation include a slotted screw driver and two adjustable wrenches. Assemble the transducer and bracket as shown in the following figure. Attach the transducer to the bracket with the supplied hardware. Make sure there is one washer on each side of the transducer, inside the bracket. Slide the other washer over the end of the bolt and thread the nut onto it. Screw the suction cup onto the bracket using the supplied screw and flat washer. Tie the nylon cord through the hole in the top of the bracket. When using this transducer, tie the other end of the nylon cord to the boat. This will help prevent the loss of the transducer if it comes off the boat.
Tie nylon cord here Suction cup Nut Washer Transducer Portable transducer assembly: rear view (left) and side view (right.) Screw

Bolt Washer

Clean the chosen area of the hull before attaching the suction cup. Locate the transducer on the hull as shown in the following figure. Don't allow the bracket to extend below the hull, because water pressure against it can cause the suction cup to come off at speed. Moisten the cup, then press it onto the hull as firmly as possible. Tie the nylon cord to the boat and route the transducer cable to the sonar unit. Your portable sonar is now ready for use. NOTE: For optimum operation, the portable transducer should be adjusted so that it is parallel to the ground. For more information on this, see the earlier segment on Transducer Orientation and Fish Arches.

Suction cup Hull Bracket

Transducer
Portable transducer installed on boat transom.

In the following figure, the screen shows a depth range from 0 to 80 feet and the bottom depth is 36.9 feet, shown by the digital sonar. The water temperature is 34.5 F.
Digital depth Water Temp Bottom signal Depth range at bottom of depth scale Full Chart page. Surface signal Fish symbols Structure or cover Grayline

FasTrack

This feature automatically converts echoes to short horizontal lines on the display's far right side. The rest of the screen continues to operate normally. FasTrack gives you a rapid update of conditions directly under the boat, making it useful for ice fishing or when fishing at anchor. When the boat is not moving, fish signals are long, drawn out lines on a normal display. FasTrack converts the graph to a vertical bar graph that makes a useful addition to fishing at a stationary location.
Surface Clutter Thermocline with fish echo Fish echoes
Full sonar chart showing surface clutter, a thermocline and some fish echoes.
The Pages menu allows you to display a full sonar chart or a FlashGraf. The FlashGraf is a split screen that displays the sonar chart on the left side of the screen with a flasher on the right.
Pages menu with Sonar Chart selected (left). FlashGraf (right).
The FlashGraf uses the grayline feature to show weaker targets in light shades of gray. Stronger targets are displayed in dark shades of gray. The bottom depth is shown as a black bar across the outer circle.

Full Chart

The unit's default page, Full Chart shows all echoes scrolling across the full screen. The bottom signal scrolls across the screen from right to left. The line at the top of the screen represents the surface. The bottom depth determined by the digital sonar can be displayed in the upper left corner of the screen. If the transducer with a built-in temperature sensor is connected, a digital display for water temperature also will be shown. This temperature display can be turned on and off.
Digital depth Water Temp Bait fish Bottom signal Depth range at bottom of depth scale Surface clutter Structure or cover Fish arches Grayline
Full Chart page showing digital depth (above) and temp (below). The Fish I.D. feature is turned off.

Depth Range

The unit automatically adjusts the depth range according to water conditions. When in auto range mode, it always keeps the bottom displayed in the lower portion of the screen. You can override automatic depth range control and manually select a depth range. To do this, repeatedly press MENU until the DEPTH RANGE menu appears. Press to select MANUAL, then press MENU UP to display the RANGE menu. Use the arrow keys to select a desired depth range. When you are finished, press PWR to clear the menu from the display. This unit has the following depth ranges: 0-10, 0-15, 0-20, 0-30, 0-40, 060, 0-80, 0-100, 0-150, 0-200, 0-300, 0-400, 0-600, 0-800, 0-1000, 0-1500, 0-2000 and 0-3000 feet.

Depth Range menu with Manual setting selected (left). Range Size menu with 0-60 ft highlighted (right).
The zoom feature enlarges all images on the screen by doubling (2X) or quadrupling (4X) the size of the echoes. When you activate the zoom command, the screen will be split in half with the zoomed area displayed on the left. The normal view will be shown on the right side of the screen. To zoom in the display, repeatedly press MENU until the ZOOM menu appears. Press to select 2X or 4X, then press PWR to clear the menu.
Zoom feature turned off (left). Zoom set to 2X zoom. (right).
You can tell when the display is in Zoom mode by the zoom range indicator at the bottom of the screen. In the example (above right), 2X is displayed at the bottom of the zoomed in display window. To turn off the zoom feature, repeatedly press MENU until the ZOOM menu appears. Press to select OFF, then press PWR to clear the menu. When you choose to use the zoom feature while the unit is in manual Depth Range mode, you can select one of 18 pre-set Zoom Ranges. This lets you enlarge a desired segment of the water column. To do this, make sure Depth Range is set to manual mode. Next, repeatedly press MENU until the ZOOM menu appears. Press to select 2X or 4X, then press MENU UP to display the ZOOM RANGE menu. Use to select a desired zoom range. When you are finished, press PWR to clear the menu from the display.

Enlarged fish arches

Zoom Range menu with the 40-80 foot zoom selected. Notice the window on the left zoomed 2X. The zoom range, 40-80 feet, covers a 40-foot water segment. When zoomed in 2X, the zoom window will show 20 feet of the water column with echoes magnified to twice their normal size.
You can select from these zoom ranges: 0-10, 7-14, 10-20, 15-30, 20-40, 30-60, 40-80, 50-100, 75-150, 100-200, 150-300, 200-400, 300-600, 400800, 500-1000, 750-1500, 1000-2000 and 1500-3000.

Sensitivity

Sensitivity adjusts the way echoes are displayed on the screen. If you want to see more detail, try increasing the sensitivity, a little at a time. When too much clutter appears on the screen, decrease sensitivity to reduce clutter and show the strongest fish echoes, if fish are present. As you change the sensitivity setting, you can see the difference on the chart as it scrolls.

The Fish I.D. feature displays as fish targets that meet certain conditions. The microcomputer analyzes all echoes and eliminates surface clutter, thermoclines and other undesirable signals. The Fish I.D. feature displays symbols on the screen in place of the actual fish echoes. There are three symbol sizes: small, medium and large. These show the relative size between targets. In other words, it displays a small fish symbol when it thinks a target is a small fish, a medium fish symbol on a larger target and so forth. Fish I.D. is an easier way for a sonar novice to recognize a fish signal return when he sees it. But, locating fish by symbol only does have some limitations. Your sonar unit's microcomputer is sophisticated, but it can be fooled. It can not distinguish between fish and other suspended objects such as trotlines, turtles, submerged floats, air bubbles, etc. 35
Individual tree limbs extending outward from a group of limbs are the hardest objects for the Fish I.D. feature to distinguish from fish.

Fish arches

Fish I.D. symbols
Underwater scene in normal fish arch mode (left). Fish I.D. menu with the feature turned on (right).
To see what is under your boat in maximum detail, we recommend you turn off Fish I.D. and begin learning to interpret fish arches. You may see Fish I.D. symbols on the screen when actually, there are no fish. The reverse is also true Fish I.D. can actually miss fish that are present. Does that mean Fish I.D. is broken? No the feature is interpreting sonar returns in a specific way to help take some of the work out of reading the screen. Remember: Fish I.D. is one of the many tools we provide so you can analyze your sonar returns for maximum fish finding information. This and other features can help you "see" beneath the boat under varied water and fishing conditions. Practice with the Fish I.D. mode on and off to become more skilled at interpreting sonar returns. Fish I.D. is most handy when you are in another part of the boat or performing some task that prevents you from watching the sonar screen. Then, you can turn on Fish I.D. and the audible fish alarm. When that lunker swims under your boat, you will hear it! Fish I.D. can also be useful when you want to screen out some of the sonar detail gathered by your unit. For example, it can help cut through the clutter of suspended bubbles caused by wave action or boat wakes. To turn on Fish I.D., repeatedly press MENU until the FISH ID menu appears. Press to select ON, then press PWR. To turn it off, repeat those steps, but press to select OFF.

FishTrack

The FishTrack feature shows the depth of a fish symbol when it appears on the display. To turn it on, repeatedly press MENU until the FISH ID menu appears. Press to select TRACK ON, then press PWR. To turn it off, repeat those steps, but press to select OFF. 36

Deep Alarm menu (left). Deep Alarm dialog box (right).

Deep Alarm

To set the deep alarm depth, repeatedly press MENU until DEEP ALARM appears. Press the to SET VALUE. The Deep Alarm Value dialog box will appear. Use to enter the first number in the dialog box, then press MENU DOWN to move to the next digit. Repeat those steps until the desired depth has been entered in the dialog box. To move the cursor back to any of the previously entered numbers, press MENU UP. Press PWR to return to the Deep Alarm menu. Press to select ON, which will turn on the alarm, then press PWR to clear the menu. When your vessel enters water deeper than the alarms setting, an alarm will sound and a message will appear on the screen. Press PWR to silence the alarm.

Battery Alarm

To set the battery alarm depth, repeatedly press MENU until BATTERY ALARM appears.
Battery Alarm menu (left). Low Battery Alarm Value (right).
Press the to SET VALUE. The Low Battery Alarm Value dialog box will appear. Input a voltage value between 7 and 18 volts. Use the keys to enter the first number in the dialog box, then press MENU DOWN to move to the next digit. Repeat those steps until the desired value has been entered in the dialog box. To move the cursor back to any of the previously entered numbers, press MENU UP. Press PWR to return to the Battery Alarm menu. Use to select ON, which will turn on the alarm, then press PWR to clear the menu. If the voltage value falls below the alarms setting, the alarm will sound and a message will appear on the screen. Press PWR to silence the alarm.

Noise Rejection and ASP

The ASP (Advanced Signal Processing) feature is a noise rejection system built into the sonar unit. It constantly evaluates the effects of boat speed, water conditions and electrical interference and automatically gives you the best display possible under most conditions. ASP is an effective tool in combating noise. In sonar terms, noise is any undesired signal. It is caused by electrical and mechanical sources such as bilge pumps, engine ignition systems, wiring, air bubbles passing over the face of the transducer and even vibration from the engine. In all cases, noise can produce unwanted marks on the display.

Noise Rejection menu.

The ASP noise rejection feature is especially useful because, typically, it lets you operate the boat at all speeds without adjusting the sensitivity or other controls. The ASP feature has three settings Off, Low and High. When first turned on, noise rejection is set on low. If you have high noise levels, try using the high ASP setting. If, however, you are having trouble with noise, we suggest you take steps to find the interference source and fix it, rather than continually using the unit with the high ASP 40
setting. There are times when you may want to turn off ASP. This allows you to view all incoming echoes before they are processed by the ASP feature. To change the ASP setting, repeatedly press MENU until the NOISE REJECTION menu appears. Use to select the desired setting, then press PWR to clear the menu.

Depth Display

Depth may be displayed on the screen in a small, medium or large size or can be turned off completely. To display Depth: Repeatedly press MENU until the DEPTH menu appears. Use to select the size of the depth display. Press PWR to clear the menu.
Depth menu with Depth display turned off (left). Depth display set to Medium (right).

Temperature Display

Temperature may be displayed on the screen in a small or medium size or can be turned off completely. To display Temperature: Repeatedly press MENU until the TEMPERATURE menu appears. Use to select the size of the temperature display. Press PWR to clear the menu.
Temperature menu (left). Temperature display set to small size (right).

Voltage

The Voltage menu allows you to display battery voltage on the screen in a small or medium size or can be turned off completely. To display voltage: Repeatedly press MENU until the VOLTAGE menu appears. Use to select the size of the voltage display. Press PWR to clear the menu.
Voltage menu with the voltage display turned off (left) and with voltage set to a small display size (right).
The Units menu allows you to switch the units of measure between Feet and Fahrenheit and Meters and Celsius. To switch units of measure, repeatedly press MENU until the Units menu appears on the screen. Use to select the desired unit of measure FEET or METERS. Press PWR to clear the menu from the screen. 42
Units set to Feet, which displays temperature in Fahrenheit (left). Units set to Meters, which shows the temperature in Celsius. (right)

Backlight

The display's backlight allows the unit to be used at night. To turn the backlight on or off, repeatedly press MENU until the BACKLIGHT menu appears. Press to turn on the backlight or to turn it off. Press PWR to clear the backlight menu from the display.
Backlight turned on (left). Contrast scroll bar (right).

Contrast

The contrast of the unit's display may be adjusted to suit different lighting conditions. It will help you see the screen from different angles or at various times of the day. To adjust the contrast, repeatedly press MENU until the CONTRAST scroll bar appears. To decrease screen contrast, press or to increase the level of contrast, press. If you reach the maximum or minimum contrast level, a tone will sound. Press the PWR key to clear the menu. 43

Simulator

This unit has a built-in simulator that shows simulated sonar returns with fish signals. This lets you practice with the unit as if you were on the water. All the unit's functions and features are usable in simulator mode. To use the simulator, repeatedly press MENU until the SIMULATOR menu appears. Press to turn on the simulator or press to turn it off. Press PWR to clear the menu. The simulator will be automatically turned off when you power off the unit.

3. The water may be deeper than the sonar's ability to find the bottom. If the sonar can't find the bottom signal while it's in the automatic mode, the digital sonar display will flash continuously. It may change the range to limits far greater than the water you are in. If this happens, place the unit in the manual mode, then change the range to a realistic one, (for example, 0-100 feet) and increase the sensitivity. As you move into shallower water, a bottom signal should appear. 4. Check the battery voltage. If the voltage drops, the unit's transmitter power also drops, reducing its ability to find the bottom or targets. Bottom echo disappears at high speeds or erratic digital reading or weak bottom echo while boat is moving 1. The transducer may be in turbulent water. It must be mounted in a smooth flow of water in order for the sonar to work at all boat speeds. Air bubbles in the water disrupt the sonar signals, interfering with its ability to find the bottom or other targets. The technical term for this is cavitation. 2. Electrical noise from the boat's motor can interfere with the sonar. This causes the sonar to automatically increase its Discrimination or noise rejection feature. This can cause the unit to eliminate weaker signals such as fish or even structure from the display. Try using resistor spark plugs or routing the sonar unit's power and transducer cables away from other electrical wiring on the boat. No fish arches when the Fish I.D. feature is off: 1. Make certain the transducer is pointing straight down. This is the most common problem if a partial arch is displayed. 2. The sensitivity may not be high enough. In order for the unit to display a fish arch, it has to be able to receive the fish's echo from the time it enters the cone until it leaves. If the sensitivity is not high enough, the unit shows the fish only when it is in the center of the cone. 3. Use the Zoom feature. It is much easier to display fish arches when zoomed in on a small range of water than a large one. For example, you will have much better luck seeing fish arches with a 30 to 60 foot range than a 0 to 60 foot range. This enlarges the targets, allowing the display to show much more detail. 4. The boat must be moving at a slow trolling speed to see fish arches. If the boat is motionless, fish stay in the cone, showing on the screen as straight horizontal lines. 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. 46

In severe cases, it can completely cover the screen with black dots, or cause the unit operate erratically, or not at all. To eliminate or minimize the effects of electrical noise, first try to determine the cause. With the boat at rest in the water, the first thing you should do is turn all electrical equipment on the boat off. Make sure the engine is also off. Turn your sonar on, then turn off Noise Reject [also known as the ASP feature (Advanced Signal Processing)]. Sensitivity should be set at 90-95 percent. There should be a steady bottom signal on the display. Now turn on each piece of electrical equipment on the boat and view the effect on the sonar's display. For example, turn on the bilge pump and view the sonar display for noise. If no noise is present, turn the pump off, then turn on the VHF radio and transmit. Keep doing this until all electrical equipment has been turned on, their effect on the sonar display noted, then turned off. If you find noise interference from an electrical instrument, trolling motor, pump, or radio, try to isolate the problem. You can usually reroute the sonar unit's power cable and transducer cable away from the wiring that is causing the interference. VHF radio antenna cables radiate noise when transmitting, so be certain to keep the sonar's wires away from it. You may need to route the sonar unit's power cable directly to the battery to isolate it from other wiring on the boat. If no noise displays on the sonar unit from electrical equipment, then make certain everything except the sonar unit is turned off, then start the engine. Increase the RPM with the gearshift in neutral. If noise appears on the display, the problem could be one of three things; spark plugs, alternator, or tachometer wiring. Try using resistor spark plugs, alternator filters, or routing the sonar unit's power cable away from engine wiring. Again, routing the power cable directly to the battery helps eliminate noise problems. Make certain to use the in-line fuse supplied with the unit when wiring the power cable to the battery. When no noise appears on the sonar unit after all of the above tests, then the noise source is probably cavitation. Many novices or persons with limited experience make hasty sonar installations which function perfectly in shallow water, or when the boat is at rest. In nearly all cases, the cause of the malfunction will be the location and/or angle of the transducer. The face of the transducer must be placed in a location that has a smooth flow of water at all boat speeds. Read your transducer owner's manual for the best mounting position.
LOWRANCE ELECTRONICS FULL ONE-YEAR WARRANTY
"We," "our," or "us" refers to LOWRANCE ELECTRONICS, a division of LEI, the manufacturer of this product. "You" or "your" refers to the first person who purchases this product as a consumer item for personal, family, or household use. We warrant this product against defects or malfunctions in materials and workmanship, and against failure to conform to this product's written specifications, all for one (1) year from the date of original purchase by you. WE MAKE NO OTHER EXPRESS WARRANTY OR REPRESENTATION OF ANY KIND WHATSOEVER CONCERNING THIS PRODUCT. Your remedies under this warranty will be available so long as you can show in a reasonable manner that any defect or malfunction in materials or workmanship, or any non-conformity with the product's written specifications, occurred within one year from the date of your original purchase, which must be substantiated by a dated sales receipt or sales slip. Any such defect, malfunction, or non-conformity which occurs within one year from your original purchase date will either be repaired without charge or be replaced with a new product identical or reasonably equivalent to this product, at our option, within a reasonable time after our receipt of the product. If such defect, malfunction, or non-conformity remains after a reasonable number of attempts to repair by us, you may elect to obtain without charge a replacement of the product or a refund for the product. THIS REPAIR, OR REPLACEMENT OR REFUND (AS JUST DESCRIBED) IS THE EXCLUSIVE REMEDY AVAILABLE TO YOU AGAINST US FOR ANY DEFECT, MALFUNCTION, OR NON-CONFORMITY CONCERNING THE PRODUCT OR FOR ANY LOSS OR DAMAGE RESULTING FROM ANY OTHER CAUSE WHATSOEVER. WE WILL NOT UNDER ANY CIRCUMSTANCES BE LIABLE TO ANYONE FOR ANY SPECIAL, CONSEQUENTIAL, INCIDENTAL, OR OTHER INDIRECT DAMAGE OF ANY KIND. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you. This warranty does NOT apply in the following circumstances: (1) when the product has been serviced or repaired by anyone other than us; (2) when the product has been connected, installed, combined, altered, adjusted, or handled in a manner other than according to the instructions furnished with the product; (3) when any serial number has been effaced, altered, or removed; or (4) when any defect, problem, loss, or damage has resulted from any accident, misuse, negligence, or carelessness, or from any failure to provide reasonable and necessary maintenance in accordance with the instructions of the owner's manual for the product. We reserve the right to make changes or improvements in our products from time to time without incurring the obligation to install such improvements or changes on equipment or items previously manufactured. This warranty gives you specific legal rights and you may also have other rights which may vary from state to state. REMINDER: You must retain the sales slip or sales receipt proving the date of your original purchase in case warranty service is ever required.

Cuda242,FishEasy245DS, X50DS, X4 / X4 Pro EAGLE / LOWRANCE www.eaglesonar.com www.lowrance.com

www.navionika.com

(044) 294-00-10
Cuda242, FishEasy245DS, X50DS, X86DS, X4 / X4 Pro
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www.eaglesonar.com www.lowrance.com