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 Typically, shoot-thru-hull installations give excellent high speed operation and good to excellent depth capability. There is no possibility of damage from floating objects. It can't be knocked off when docking or loading on the trailer. However, the shoot-thru-hull installation does have its drawbacks. 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. This can be a problem on some hulls that sit with the bow high when at rest or at slow trolling speeds. Follow the procedure listed in the shoot-thru-hull installation section at the end of this lesson to determine if you can satisfactorily shoot through the hull. TRANSOM TRANSDUCER ASSEMBLY AND MOUNTING The best way to install these transducers is to loosely assemble all of the parts first, place the transducer's bracket against the transom and see if you can move the transducer so that it's parallel with the ground. The following instructions sometimes vary depending on the mounting bracket that came with your transducer. Single frequency Skimmers come with a one-piece stainless steel bracket, while dual frequency Skimmers come with a two-piece plastic mounting bracket. Use the set of instructions that fits your model. 1. Assembling the bracket. A. One-piece bracket: Press the two small plastic ratchets into the sides of the metal bracket as shown in the following illustration. Notice there are letters molded into each ratchet. Place each ratchet into the bracket with the letter "A" aligned with the dot stamped into the metal bracket. This position sets the transducer's coarse angle adjustment for a 14 transom. Most outboard and stern-drive transoms have a 14 angle.
Align plastic ratchets in bracket.
B. Two-piece bracket: Locate the four plastic ratchets in the transducer's hardware package. Press two ratchets into the sides of the plastic bracket and two on either side of the transducer as shown in the following illustrations. Notice there are letters molded into each ratchet. Place the ratchets into the bracket with the letter "A" aligned with the alignment mark molded into the bracket. Place the ratchets onto the transducer with the letter "A" aligned with the 12 o'clock position on the transducer stem. These positions set the transducer's coarse angle adjustment for a 14 transom. Most outboard and stern-drive transoms have a 14 angle.

Alignment letters Alignment positions
Transducer Transducer bracket Insert and align ratchets.

Transducer bracket

Transducer

Ratchet

Add ratchets to bracket and transducer.
2. Aligning the transducer on the transom. A. One-piece bracket: Slide the transducer between the two ratchets. Temporarily slide the bolt though the transducer assembly and hold it against the transom. Looking at the transducer from the side, check to see if it will adjust so that its face is parallel to the ground. If it does, then the "A" position is correct for your hull. If the transducer's face isn't parallel with the ground, remove the transducer and ratchets from the bracket. Place the ratchets into the holes in the bracket with the letter "B" aligned with the dot stamped in the bracket. Reassemble the transducer and bracket and place them against the transom. Again, check to see if you can move the transducer so it's parallel with the ground. If you can, then go to step 3A. If it doesn't, repeat step 2A, but use a different alignment letter until you can place the transducer on the transom correctly.

Ratchets

Insert bolt and check transducer position on transom.
B. Two-piece bracket: Assemble the transducer and bracket as shown in the following figure. Temporarily slide the bolt though the transducer assembly but don't tighten the nut at this time. Hold the assembled transducer and bracket against the transom. Looking at the transducer from the side, check to see if it will adjust so that its face is parallel to the ground. If it does, then the "A" positions are correct for your hull. If the transducer's face isn't parallel with the ground, remove and disassemble the transducer and ratchets. Place the ratchets into the bracket holes with the letter "B" aligned with the bracket alignment mark. Place them on the transducer aligned with the 12 o'clock position on the transducer stem. Reassemble the transducer and bracket and place them against the transom. Again, check to see if you can move the transducer so it's
parallel with the ground. If you can, then go to step 3B. If it doesn't, repeat step 2B, but use a different alignment letter until you can place the transducer on the transom correctly.
Lock washer Bolt Nut Flat washer Flat washer
Assemble transducer and bracket.
3. Assembling the transducer. A. One-piece bracket: Once you determine the correct position for the ratchets, assemble the transducer as shown in the following figure. Don't tighten the lock nut at this time.

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 (single-frequency only) 1. Attach the optional TMB-S bracket to the transducer as shown in the following figure, using the hardware supplied with the transducer. (Note: The internal tooth washer is supplied with the TMB-S.)
Internal tooth washer Bolt Nut TMB-S bracket

Flat washer

Attach motor mounting bracket to transducer.
2. Slide the adjustable strap supplied with the TMB-S through the slot in the transducer bracket and wrap it around the trolling motor. Position the transducer to aim straight down when the motor is in the water. Tighten the strap securely. 3. Route the transducer cable alongside the trolling motor shaft. Use plastic ties (not included) to attach the transducer cable to the trolling motor shaft. Make sure there is enough slack in the cable for the motor to turn freely. Route the cable to the sonar unit and the transducer is ready for use.
Transducer mounted on trolling motor, side view.
TRANSDUCER ORIENTATION AND FISH ARCHES If you do not get good fish arches on your display, it could be because the transducer is not parallel with the ground when the boat is at rest in the water or at slow trolling speeds.

Partial fish arches

Transducer aimed too far back
Transducer aimed too far forward
Full fish arch Proper transducer angle Transducer angles and their effects on fish arches.
If the arch slopes up but not back down then the front of the transducer is too high and needs to be lowered. If only the back half of the arch is printed, then the nose of the transducer is angled too far down and needs to be raised. NOTE: Periodically wash the transducer's face with soap and water to remove any oil film. Oil and dirt on the face will reduce the sensitivity or may even prevent operation. SHOOT-THRU-HULL PREPARATION The transducer installation inside a fiberglass hull must be in an area that does not have air bubbles in the resin or separated fiberglass layers. The sonar signal must pass through solid fiberglass. A successful 13
transducer installation can be made on hulls with flotation materials (such as plywood, balsa wood or foam) between layers of fiberglass if the material is removed from the chosen area.
Fill with epoxy Flotation material Inner hull

Epoxy to hull first

Outer hull
Epoxy the transducer to a solid portion of the hull.
For example, some (but not all) manufacturers use a layer of fiberglass, then a core of balsa wood, finishing with an outer layer of fiberglass. Removing the inner layer of fiberglass and the balsa wood core exposes the outer layer of fiberglass. The transducer can then be epoxied directly to the outer layer of fiberglass. After the epoxy cures, the hull is watertight and structurally sound. Remember, the sonar signal must pass through solid fiberglass. Any air bubbles in the fiberglass or the epoxy will reduce or eliminate the sonar signals. WARNING: Do not remove any material from your inner hull unless you know the hull's composition. Careless grinding or cutting on your hull can result in damage that could sink your boat. Contact your boat dealer or manufacturer to confirm your hull specifications. To choose the proper location for thru-hull mounting, anchor the boat in 60 feet of water. Add a little water to the sump of the boat. Plug the transducer into the sonar unit, turn it on, then hold the transducer over the side of the boat. Adjust the sensitivity and range controls until a second bottom echo is seen on the display. (You will need to turn off both automatic and ASP.) Don't touch the controls once they've been set. Next, take the transducer out of the water and place it in the water in the sump of the boat. Observe the sonar signal to see if there is a noticeable decrease in sensitivity. The second bottom signal may disappear and the bottom signal may decrease in intensity. Move the transducer around to find the best location. If the sensitivity control must be increased greatly to compensate, then the transducer should be mounted on the outside of the hull. If not, then mark the lo14

Plastic washer Rubber washer Gimbal bracket

Gimbal knob Sonar unit

For a secure portable mount, attach the unit to the portable power pack's gimbal bracket using the supplied gimbal knobs and washers as shown above.
Installing the Batteries Release the latch on the front of the battery case. Open the compartment and install either an optional rechargeable battery or eight "D" cell batteries into the adapter. For the longest life, we recommend you use alkaline batteries. After installing the batteries, close the case and plug the sonar unit's power cable into the socket on the battery case. Turn the sonar unit on. If it doesn't work, make sure the battery terminals are making good contact against the battery contacts. Also check the wiring connections on the D-cell battery adapter. The red wire on the power cable should be attached to the red wire on the D-cell battery adapter and the power cable's black wire should be connected to the black wire on the D-cell battery adapter. If it still doesn't work, check the battery voltage. Most of the complaints we receive about portable units result from stale batteries. Make sure the ones you buy are fresh. Always remove batteries from the battery compartment before storing the unit because dead batteries can leak and corrode the contacts.
"D" cell battery
Install batteries in power case battery adapter.
In cold weather the efficiency of dry cell batteries drops with the temperature. We find it a good idea to have the sonar unit good and warm along with the batteries before we leave home. If the batteries do lose a charge, you can sometimes restore them by placing them in a warm room or car interior. A better way is to replace them with batteries that have been kept warm. WARNING: Never heat the batteries over an open flame or direct hot air onto them. A fire or explosion could result. Portable Transducer Assembly 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. 25
Tie nylon cord here Suction cup Screw

Bolt Washer

Washer Transducer
Portable transducer assembly: rear view (left) and side view (right.)
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.

Split Chart page with normal view at right; zoomed view at left.
DUAL-FREQUENCY SPLIT CHART (SeaFinder 240DF only) This page shows sonar data from the 50 kHz transducer element on the left side of the screen and data from the 200 kHz transducer on the right side. All other functions and features are the same as the Full Chart page.
Dual-Frequency Split Chart page, with 50 kHz view at left and 200 kHz view at right.
You can adjust the sensitivity in each window. To change the 200 kHz window's sensitivity, press MENU until the SENSE 200K menu appears. Press UP ARROW to increase the sensitivity, DOWN ARROW to decrease it. When it's set at the desired level, press PWR to clear the menu. Change the 50 kHz window sensitivity in the same way, but use the SENSE 50K menu.
Dual-Frequency Split Chart page. The 50 kHz sensitivity menu is shown at left and the 200 kHz sensitivity menu is shown at right.
Lrg DIGITAL (Large Digital) The Large Digital page shows all information in big numbers. The digital depth display is at the top of this screen, followed by the temperature, speed, and distance readings. NOTE: Temperature, speed, and distance require a temperature or speed sensor. These may be optional equipment, depending on the sonar model you purchased.

Large Digital page.

RANGE When turned on for the first time, the unit automatically adjusts the depth range according to water conditions. It always keeps the bottom displayed in the lower portion of the screen. You can over-ride the automatic range control and manually select a range. To do this, press MENU until the RANGE menu appears. Use the arrow keys to select the desired range. When you're finished, press PWR to clear the menu from the display.

Range Select menu.

This unit has the following ranges: 10, 15, 20, 30, 40, 60, 80, 100, 150, 200, 300, 500, 800 and 1,000 feet. ZOOM The zoom feature enlarges all echoes on the screen. The 2X zoom doubles the size of the echoes on the display; the 4X zoom quadruples the echo size.
Zoom screen, showing Zoom menu and the 2X zoom indicator at the top right of the screen.
To zoom the display, first press the MENU key until the ZOOM menu appears. Use the arrow keys to select either 2X or 4X zoom, then press PWR to clear the menu. When the display is in Zoom mode, the screen will show a zoom indicator box at the top right corner of the screen. This is a reminder that the display is zoomed, and it tells what level of zoom is in effect. To turn the zoom feature off, press the MENU key until the ZOOM menu appears. Use the arrow keys to select OFF, then press PWR to clear the menu.

Important Tip:

Your unit has the handy ability to quickly zoom in on any portion of the water column with just the touch of an arrow key. The Zoom Pan feature lets you rapidly move the zoomed area up and down to different depths. By "pointing" your zoom at different portions of the chart as it scrolls, you can get a good, close-up look at structure or cover below you. To use Zoom Pan, switch to a manual depth Range setting (see page 33) and turn on 2X or 4X Zoom. Then, simply press the UP ARROW or DOWN ARROW to pan up and down the water column.

Fig. 1 Fig. 2 Fig. 3

In 34 feet of water, with the Range set manually at 60 feet, the unit shows the entire water column in Fig. 1. To get a closer look, turn around and follow your wake to troll over the structure again. With the unit in 4X zoom, press the down arrow key to look at the six fish along the ledge, then press the up arrow to pan up the water column to see four game fish threatening a school of forage fish.
NOTE: Using the Zoom command while in auto Range mode will always enlarge the echoes near the bottom, because auto Range always keeps the bottom displayed in the lower portion of the screen. 34
When you Zoom in manual Range mode, echoes are enlarged near the middle of the displayed range. For example, with a manual depth Range of 100 feet, your screen shows the water column from zero at the top of the screen to 50 feet in the middle to 100 feet at the bottom of the screen. Select 2X Zoom and the screen will show the water column from zero to 50 feet, with 25 feet shown in the middle of the screen. Select 4X Zoom and the screen shows the water column from 13 feet to about 39 feet, with 25 feet still in the middle of the screen. SENSITIVITY Sensitivity controls the unit's ability to pick up echoes. If you want to see more detail, try increasing the sensitivity, a little at a time. There are situations when too much clutter appears on the screen. Decreasing the sensitivity can reduce the 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.
Bait school Thermocline with fish Fish arches Fig. 1 Fig. 2

Fig. 3

Fig. 4
These figures show results of different sensitivity levels on the same location. Fig. 1: Sensitivity at 87 percent, determined by Auto Sensitivity. Typical of full auto mode. Fig. 2: Sensitivity set at 50 percent. Fig. 3: Sensitivity set at 20 percent. Fig. 4: Sensitivity set at 100 percent.
You can change the sensitivity level whether you are in Auto Sensitivity mode or Manual Sensitivity mode. The adjustment method works the same in both modes, but it gives you slightly different results. Adjusting sensitivity in Auto Sensitivity Mode is similar to manually adjusting a car's speed with the accelerator pedal while cruise control is on. You can tell the car to run faster, but when you let off the gas the cruise control automatically keeps you from running slower than the minimum speed setting. In your unit, auto mode will let you increase sensitivity to 100 percent, but the unit will limit your minimum setting. This prevents you from turning sensitivity down too low to allow automatic bottom tracking. When you change the setting with auto turned on, the unit will continue to track the bottom and make minor adjustments to the sensitivity level, with a bias toward the setting you selected. Adjusting sensitivity in Manual Sensitivity Mode is similar to driving a car without cruise control you have complete manual control of the car's speed. In your unit, manual mode allows you to set sensitivity at 100 percent (maximum) or zero percent (minimum.) Depending on water and bottom conditions, the bottom signal may completely disappear from the screen when you reduce sensitivity to about 20 percent or less! Try adjusting sensitivity in both auto and manual modes to see how they work.

Sensitivity menu screens. Left, automatic or manual menu. Right, Sensitivity Adjustment menu.
To adjust sensitivity: Press MENU until the SENSITIVITY ADJUSTMENT menu appears. Press UP ARROW to increase the sensitivity, DOWN ARROW to decrease it. When it's set at the desired level, press PWR to clear the menu. The sensitivity percentage in use shows in this menu. As you change the setting, echoes scrolling onto the screen will show the effects of the change. If you reach the maximum or minimum sensitivity level, a tone sounds alerting you to the limits. NOTE: If you want to change the sensitivity in Manual Mode, first turn off Auto Sensitivity: press MENU until the SENSITIVITY AUTOMATIC/MANUAL menu appears. Press DOWN ARROW to select MANUAL, then press PWR to clear the menu. To adjust the sensitivity, follow the same steps used for adjusting sensitivity in auto mode above. GRAYLINE Grayline lets you distinguish between strong and weak echoes. It "paints" gray on targets that are stronger than a preset value. This allows you to tell the difference between a hard and soft bottom. For example, a soft, muddy or weedy bottom returns a weaker signal which is shown with a narrow or no gray line. A hard bottom returns a strong signal which causes a wide gray line. If you have two signals of equal size, one with gray and the other without, then the target with gray is the stronger signal. This helps distinguish weeds from trees on the bottom, or fish from structure. Grayline is adjustable. The factory default for this unit is 69 percent. Since Grayline shows the difference between strong and weak signals, adjusting the sensitivity may also require a different Grayline level. The level chosen by the sonar unit at power on is usually adequate for most conditions. Experiment with your unit to find the Grayline setting that's best for you. To change the Grayline level, press MENU until the GRAYLINE menu appears. Press UP ARROW to increase the level or press DOWN ARROW to decrease it. The percentage of Grayline in use shows in this menu. Echoes scrolling onto the screen will also show the effects of the Grayline change. If you reach the maximum or minimum level, a tone sounds alerting you to the limits. Press PWR to clear the menu. 37

Thin or no Grayline

Wider Grayline
At left, Grayline menu screen. Center, little Grayline indicates a soft bottom, probably sand or mud. At right, the wider Grayline indicates a harder, rocky bottom.
FISH I.D. The Fish I.D. feature identifies targets that meet certain conditions as fish. The microcomputer analyses all echoes and eliminates surface clutter, thermoclines and other signals that are undesirable. In most instances, remaining targets are fish. 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.

SYSTEM SETUP

To customize the display, press MENU DOWN until the SYSTEM SETUP menu appears, then press UP ARROW. The display contrast, units of measure, temperature, and system information screens are all under this menu. The Contrast menu appears first. Press the MENU UP or MENU DOWN keys to cycle through the menus. When you're finished, press the PWR key to clear the menus.

System Setup menu.

DISPLAY ADJUSTMENTS BACKLIGHTS The display is backlit for night use. To turn the backlight on or off, press MENU repeatedly until the BACK LIGHT menu appears. Press UP ARROW to turn the light on or the DOWN ARROW to turn it off.

Backlight menu.

DISPLAY CONTRAST The units display contrast is adjustable to suit different lighting conditions. This will help you see the screen from different angles or at vari46
ous times of the day. The default setting is 50 percent. To adjust the contrast, press MENU DOWN until the SYSTEM menu appears, press UP ARROW, and the CONTRAST menu appears. To decrease screen contrast, press the DOWN ARROW key. Press the UP ARROW key to increase screen contrast. The bar graph in the Contrast menu box shows a graph of the contrast. The screen will also show the effects of the change. If you reach the maximum or minimum level, a tone sounds alerting you to the limits. Press the PWR key to clear the menu.

Display Contrast menu.

DEPTH UNITS OF MEASURE This unit can show the depth in feet, fathoms or meters. To change the depth units of measure, press MENU DOWN until the SYSTEM menu appears, press UP ARROW, then press MENU until the DEPTH menu appears. Use the arrow keys to select the desired unit of measure, then press the PWR key to clear the menu.
Depth menu controls the unit of measure used to show depth.
TEMPERATURE UNITS OF MEASURE This unit can show the temperature (if a temperature sensor is attached) in degrees Fahrenheit or Celsius. To change the unit of measure, press MENU DOWN until the SYSTEM menu appears. Press UP ARROW, then press MENU until the TEMPERATURE menu appears. Use the arrow keys to select the measurement unit, then press PWR to clear the menu.
Temperature unit of measure menu.
SPEED and DISTANCE LOG UNITS OF MEASURE The speed and distance log can be displayed in statute miles (MPH), Nautical miles (knots), or Metric (kilometers per hour) if a speed sensor is attached. To change the unit of measure, press MENU DOWN until the SYSTEM menu appears. Press UP ARROW, then press MENU until the SPEED/LOG menu appears. Use the arrow keys to select the desired measurement unit, then press PWR to clear the menu.

Speed menu.

RESET DISTANCE LOG You can reset the distance log to zero with this command. Press MENU DOWN until SYSTEM appears, then press UP ARROW. Press MENU until the RESET LOG menu appears. Press UP ARROW and the log returns to zero. Press PWR to clear the menu.

Reset Log menu.

Chart Setup menu.

LIMIT SEARCH The Limit Search command helps you maintain maximum chart detail when you are moving fast in deep water (about 200 feet.) When turned on, Limit Search prevents the digital sonar from over-riding the sonar chart's depth range setting. Limit Search does this by preventing the digital sonar from slowing down the ping speed as it automatically searches for and tracks the bottom. The default setting is off, and this should fit most freshwater fishing situations. 51
High boat speed and slow ping speed (caused by the deeper bottom) can reduce the screen refresh rate. This in turn can reduce the amount of detail seen on the sonar chart. Try this command only if you are in deep water, traveling at high speed, and notice a reduction in detail on the sonar chart. When Limit Search is turned on, the digital sonar will limit its search for the bottom to the depth range you have set for the sonar chart. NOTE: Turning Limit Search on can cause the digital sonar to lose the bottom in some situations. The digital depth will flash if that occurs. The sonar chart must be in manual depth range mode to use the Limit Search command. To switch from auto depth range to manual, press MENU until the RANGE menu appears. Use the arrow keys to select the desired range. When you're finished, press PWR to clear the menu from the display. Next, press MENU DOWN until the CHART SETUP menu appears, then press UP ARROW to enter the list of Chart Setup commands, where the LIMIT SEARCH menu appears. Press UP ARROW to turn it on and press PWR to clear the menu.

Limit Search menu.

To turn Limit Search off, repeat the above steps but press the DOWN ARROW to select "Off." Also remember to switch the depth range setting back to automatic. This will restore the digital sonar's ability to automatically track the bottom. FREQUENCY (Change Transducer Frequency) (SeaFinder 240DF only) The SeaFinder 240DF transducer operates with both 200 kHz and 50 kHz. The 200 kHz frequency has a 12 cone angle and the 50 kHz frequency has a 36 cone angle. 52
The default frequency is 200 kHz, which is best for use in shallow water (about 300 feet or less). This frequency is the best choice for about 80 percent of the fresh and salt water sport fishing applications. When you get into very deep salt water, 300 to 500 feet or deeper, the 50 kHz frequency is the best choice. The 200 kHz transducer will give you better detail and definition, but less depth penetration. The 50 kHz transducer will give you greater depth penetration, but a little less detail and less definition. (Remember, all sonar units typically read deeper in fresh water than in salt water.) There is a common exception to these rules of thumb. Some fishermen on freshwater lakes (or the ocean) using downriggers like to see them on the sonar. In many of those cases, you'll see a 50 kHz transducer frequency in use because the wider cone angle lets them watch the bait.

EAGLE ELECTRONICS FULL ONE-YEAR WARRANTY
"We," "our," or "us" refers to EAGLE 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.

EAGLE ELECTRONICS PO BOX 669, CATOOSA, OK 74015 (800) 324-1354

How to Obtain Service

in the USA:
We back your investment in quality products with quick, expert service and genuine Eagle replacement parts. If you're in the United States and you have technical, return or repair questions, please contact the Factory Customer Service Department. Before any product can be returned, you must call customer service to determine if a return is necessary. Many times, customer service can resolve your problem over the phone without sending your product to the factory. To call us, use the following toll-free number:

800-324-1354

8 a.m. to 5 p.m. Central Standard Time, M-F
Eagle Electronics may find it necessary to change or end our shipping policies, regulations, and special offers at any time. We reserve the right to do so without notice.

in Canada:

If you're in Canada and you have technical, return or repair questions, please contact the Factory Customer Service Department. Before any product can be returned, you must call customer service to determine if a return is necessary. Many times, customer service can resolve your problem over the phone without sending your product to the factory. To call us, use the following toll-free number:
905-629-1614 (not toll-free)
8 a.m. to 5 p.m. Eastern Standard Time, M-F

800-661-3983

outside Canada and the USA:
If you have technical, return or repair questions, contact the dealer in the country where you purchased your unit. To locate a dealer near you, visit our web site, www.eaglesonar.com and click on Customer Support and then click Dealer Locator.
Accessory Ordering Information for all countries
To order Eagle accessories such as power cables or transducers, please contact: 1) Your local marine dealer or consumer electronics store. Most quality dealers that handle marine electronic equipment or other consumer electronics should be able to assist you with these items. To locate an Eagle dealer near you, visit our web site, www.eaglesonar.com and look for the Dealer Locator. Or, you can consult your telephone directory for listings. 2) U.S. customers: LEI Extras Inc., PO Box 129, Catoosa, OK 74015-0129 Call 1-800-324-0045 or visit our web site www.lei-extras.com. 3) Canadian customers can write: Lowrance/Eagle Canada, 919 Matheson Blvd. E. Mississauga, Ontario L4W2R7 or fax 905-629-3118.

Shipping Information

If it becomes necessary to send a product for repair or replacement, you must first receive a return authorization number from Customer Service. Products shipped without a return authorization will not be accepted. When shipping, we recommend you do the following: 1. Always use the original shipping container and filler material the product was packed in. 2. Always insure the parcel against damage or loss during shipment. Eagle does not assume responsibility for goods lost or damaged in transit. 3. For proper testing, include a brief note with the product describing the problem. Be sure to include your name, return shipping address and a daytime telephone number.

Visit our web site:

Eagle Pub. 988-0143-641 Printed in USA 092402
Copyright 2002 All Rights Reserved Eagle Electronics

Shoot-thru-hull v.s. Transom Mounting
(FishEasy and FishEasy ST Only) Typically, shoot-thru-hull installations give excellent high speed operation and good to excellent depth capability. There is no possibility of damage from floating objects. It can't be knocked off when docking or loading on the trailer. However, the shoot-thru-hull installation does have its drawbacks. One, 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 layup and construction. Two, the angle of the transducer cannot be adjusted for the best fish arches. This can be a problem on some hulls that sit with the bow high when at rest or at slow trolling speeds. Follow the procedure listed in the shoot-thru-hull installation section in this manual to determine if you can satisfactorily shoot through the hull.
Transducer Assembly and Mounting - All Units The best way to install this transducer is to loosely assemble all of the parts first, place the transducers bracket against the transom and see if you can move the transducer so that its parallel with the ground. 1. Press the two small plastic ratchets into the sides of the metal bracket as shown below. Notice there are letters molded into each ratchet. Place each ratchet into the bracket with the letter A aligned with the dot stamped into the metal bracket. This position sets the transducers coarse angle adjustment for a fourteen (14) degree transom. Most outboard and stern-drive transoms have a fourteen degree angle.
2. Slide the transducer between the two ratchets. Temporally slide the bolt though the transducer assembly and hold it against the transom. Looking at the transducer from the side, check to see if it will adjust so that its face is parallel to the ground. If it does, then the A position is correct for your hull. If the transducers face isnt parallel with the ground, remove the transducer and ratchets from the bracket. Place the ratchets into the holes in the bracket with the letter B aligned with the dot stamped in the bracket. Reassemble the transducer and bracket and place them against the transom. Again, check to see if you can move the transducer so its parallel with the ground. If you can, then go to step 3. If it doesnt, repeat step 2, but use a different letter until you can place the transducer on the transom correctly.

RATCHETS

3. Once you determine the correct position for the ratchets, assemble the transducer as shown at left. Don't tighten the lock nut at this time.

NUT METAL WASHER

RUBBER WASHERS BOLT

METAL WASHER

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

POOR ANGLE

4. Hold the transducer and bracket assembly against the transom. The transducer should be roughly parallel to the ground. The bottom of the transducer bracket should be in line with the bottom of the hull. Don't let the bracket extend below the hull! Mark the center of the slots for the mounting holes. Drill two 5/32" holes in the marked locations for the #10 screws supplied with the transducer.

TRANSOM

SIDE VIEW

Bottom of Hull

5. Remove the transducer from the bracket and re-assemble it with the cable passing through the bracket over the bolt as shown above. Attach the transducer to the transom. Slide the transducer up or down until its aligned properly on the transom as shown above. Tighten the brackets mounting screws. Adjust the transducer so that its parallel to the ground and tighten the lock nut until it touches the flat washer, then add 1/4 turn. Dont over tighten the lock nut! If you do, the transducer wont kick-up if it strikes an object in the water. 6. Route the transducer cable to the sonar unit. Make certain to leave some slack inthe cable at the transducer as shown above. If possible, route the transducer cable away from other wiring on the boat. Electrical noise from the engines 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. IMPORTANT! 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. 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 (TriFinder Only) 1. Attach the TMB-S bracket to the transducer as shown below using the hardware supplied with the transducer. (Note: The internal tooth washer is supplied with the TMB-S.)

TMB-S BRACKET

INTERNAL TOOTH WASHER BOLT NUT

FLAT WASHER

2. Slide the adjustable strap supplied with the TMB-S through the slot in the transducer bracket and wrap it around the trolling motor. Position the transducer to aim straight down when the motor is in the water. Tighten the strap securely. Route the transducer cable alongside the trolling motor shaft. Use plastic ties (not included) to attach the transducer cable to the trolling motor shaft. Make certain there is enough slack in the cable for the motor to turn freely. Route the cable to the sonar unit and the transducer is ready for use.

SHOOT-THRU-HULL

(FishEasy and FishEasy ST Only) The transducer installation inside a fiberglass hull must be in an area that does not have air bubbles in the resin or separated fiberglass layers. The sonar signal must pass through solid fiberglass. A successful transducer installation can be made on hulls with flotation materials (such as plywood, balsa wood, or foam) between layers of fiberglass if the material is removed from the chosen area. For example, some manufacturers use a layer of fiberglass, then a core of balsa wood, finishing with an outer layer of fiberglass. Removing the inner layer of fiberglass and the balsa wood core exposes the outer layer of fiberglass. The transducer can then be epoxied directly to the outer layer of fiberglass. After the epoxy cures, the hull is watertight and structurally sound. Remember, the sonar signal must pass through solid fiberglass. Any air bubbles in the fiberglass or the epoxy will reduce or eliminate the sonar signals. To choose the proper location for thru-hull mounting, anchor the boat in 60 feet of water. Add a little water to the sump of the boat. Plug the
FILL WITH EPOXY INNER HULL

EPOXY TO HULL FIRST

SONAR UNIT GIMBAL BRACKET RUBBER WASHER PLASTIC WASHER (PORTABLE UNITS ONLY)

GIMBAL KNOB

Attach the unit to the gimbal bracket using the supplied gimbal knobs and washers as shown above.
FISHEASY PORTABLE ASSEMBLY INSTALLING THE BATTERIES Release the latch on the front of the battery case. Open the compartment and install four "D" cell batteries into the adapter. For the longest life, we recommend you use alkaline batteries. This battery case will also hold one rechargable battery instead of the "D" cells. See the enclosed coupon for more information on the rechargable battery.
"D" CELL BATTERY
After installing the batteries, close the case and plug the power cable on the battery case into the FishEasy Portable. Turn the sonar unit on. If it doesn't work, make certain the battery terminals are making good contact against the battery contacts. Also check the wiring connections on the Dcell battery adapter. The red wire on the power cable should be attached to the red wire on the D-cell battery adapter and the power cable's black wire should be connected to the black wire on the D-cell battery adapter. If it still doesn't work, check the battery voltage. Most of the complaints we
receive about portable units result from stale batteries. Make certain the ones you buy are fresh. Always remove batteries from the battery compartment before storing the unit as dead batteries can leak and corrode the contacts. In cold weather the efficiency of dry cell batteries drops with the temperature. We find it a good idea to have the sonar unit good and warm along with the batteries before we leave home. If the batteries do lose a charge, you can sometimes restore them by placing them in a warm room or car interior. A better way is to replace them with batteries that have been kept warm. Don't ever heat the batteries over an open flame or direct hot air onto them. A fire or explosion could result.
PORTABLE TRANSDUCER ASSEMBLY Assemble the transducer and bracket as shown below. Attach the transducer to the bracket with the supplied hardware. Make certain 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 SCREW

BOLT WASHER

WASHER
Clean the chosen area of the hull before attaching the suction cup. Locate the transducer on the hull as shown below. Don't allow the bracket to go below the hull, as 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. Plug the transducer connector into the unit and your portable sonar is now ready for use.
SPEED/TEMPERATURE SENSORS The FishEasy ST and TriFinder can use up to three temperature sensors which can monitor surface water, live well, air, and virtually any other temperature. You do need to be careful when purchasing the temperature sensors, however. Each temperature sensor has its own "address". The sensors are labeled "Water", "T-2" (or Temp-2), and "T-3" (or Temp-3). If you want two (or more) temperature readings, you'll need to use the proper sensors. For example, you can't use two T-3 sensors. The sensors that will fit these units are: TS-1BK TS-2BK TS-3BK TS-12BK ST-TBK One sensor for "Water" temperature display. One sensor for "T-2" temperature display. One sensor for "T-3" temperature display. Two sensors for "Water" and "T-2" temperature displays. One speed sensor and one temperature sensor for "Speed" and "Water" displays. (comes with Strata Plus)
You can combine these sensors in many combinations. See the list on the following page for temperature and speed sensor combinations.

Sensor Chart

(Note: Do not use these sensors in any other combination.) ST-TBK = 1 speed sensor and 1 temperature display ST-T BK + TS-2BK = 2 temp sensors and one speed sensor ST-TBK + TS-2BK + TS-3BK = 3 temp sensors and one speed sensor TS-1BK = 1 temperature sensor TS-12BK = 2 temperature sensors or TS-1BK + TS-2BK = 2 temperature sensors TS-12BK + TS-3BK = 3 temperature sensors or TS-1BK + TS-2BK +TS-3BK = 3 temperature sensors
Here's some sample wiring diagrams:

TS-12 BK

Two Temperature Sensors (Water and T-2)
FISHEASY OR TRIFINDER POWER CABLE 16
(Note: Do not use these sensors in any other combination.)

TS-3 BK

Three Temperature Sensors (Water, T-2, and T-3)
FISHEASY OR TRIFINDER POWER CABLE ST-TBK

TS-2 BK

Three Temperature Sensors plus Speed (Water, T-2, T-3, and Speed)
FISHEASY OR TRIFINDER POWER CABLE 17
KEYBOARD BASICS The unit sounds a tone when you press any key. This tells you the unit has accepted a command. PWR/CLEAR Use this key to turn the unit on. It also clears menu selections and the menus from the screen. This key also turns the unit off. NOTE: You must hold the OFF key down for a few seconds in order to turn the unit OFF. MENU FWD / MENU REV These sonar units have many features that are accessed with the menu keys. The MENU FWD key moves forward through the menus, the MENU REV key moves backward. To see the first menu, simply press either MENU key. To see the other menus, press a MENU key repeatedly. UP and DOWN ARROWS Use these keys to adjust virtually every feature and function on the unit. NOTE: The up arrow key also stops the chart when no menus are displayed. In other words, anytime you wish to stop the chart, first make certain no menu is on the screen. Now press the up arrow key. The chart freezes and the word STOP appears at the top of the screen. To start the chart, press the up arrow key again or the PWR/CLEAR key. DISPLAY - General The lights flash for about ten seconds when the unit is turned on. Two menus appear, one after the other. The menus are the lights (BACK LIGHT) and a feet-meter selection (FEET/METER). To turn the lights on, press the up arrow key. To switch from feet to meters, press the down arrow key when the proper menu appears. The menus disappear after a few seconds. If you dont want to wait, press the PWR key to clear the menus from the screen. When the sonar unit is first turned on, the display appears similar to the one at right. The unit is in the automatic mode and the Fish ID feature is on. The depth range shows on the left side of the screen. On the screen at right, the range is from 0 to 60 feet and the bottom depth is 48.6 feet.

OPERATION MENUS This unit uses menus to guide you through the units functions and features. The menu key accesses these features, allowing you to customize the unit to your particular needs and water conditions. All you have to do to leave one menu and enter another is press the menu key repeatedly. If you ever get lost in the menus, simply press the PWR key. This clears the menus from the screen. Menus change depending on the mode the unit is in. For example, if the automatic mode is turned off, the sensitivity menu changes from AUTO SENS to MAN SENS. Other messages may appear in menu boxes or new menus can appear, again depending on previous selections. AUTOMATIC When the unit is first turned on, the automatic feature is enabled. This feature automatically adjusts the units range and sensitivity according to water conditions. It always keeps the bottom displayed in the lower portion of the screen. To turn the automatic feature off, press the menu key until the AUTO/MAN menu appears. Now press the down arrow key. This highlights the letters MAN. The unit is now in the manual mode. Wait a few seconds and the menu will scroll off the screens left side. Pressing the PWR key also clears it. To turn the automatic feature on again, repeat the above steps, except this time press the up arrow key. RANGE You cant adjust the range when the unit is in the automatic mode. It is adjustable when the unit is in the manual mode, however. To do so, first put the unit in the manual mode. Now press the PWR key to clear the screen. Then press the menu key until the RANGE SEL menu appears as shown at the top of the next page. The current range shows at the bottom of the menu. In this case, the range is 60 feet. Now press the up arrow key to decrease the range, the down arrow key increases the range.
After you select the desired range, press the PWR key to clear the display. If you wait a few seconds, it will automatically clear. This unit has the following ranges: 10, 20, 40, 60, 120, 240, 480, and 900 feet. and 5, 10, 20, 40, 60, 100, 200, and 300 meters.
ZOOM The zoom feature enlarges all echoes on the screen. If the unit is in the automatic mode, it tracks the bottom signal, always keeping it near the bottom of the screen. This lets you see small detail, at the same time enlarging all echoes that appear on the screen. The unit doesnt track the bottom in the manual mode, and the adjustments are slightly different. Zoom - Automatic Operation To zoom the display, first press the MENU key until the RANGE/ZOOM menu appears as shown at right. Now press the down arrow key. This switches the unit into the zoom mode. A new menu immediately appears as shown below. This is the zoom size menu. Zoom size is the distance between the upper limit and the lower limit. The upper limit shows at the top left corner of the screen. The lower limit is in the bottom left corner. For example, if the upper limit is 40 feet and the lower limit is 70 feet, the zoom window size is 30 feet. The word TRACK appears in this menu when you first activate the zoom as shown at right.

FISHEASY and FISHEASY Portable ONLY CHT 1 (Chart #1) This is the default mode used when the unit is first turned on. It has the following features: 1. Automatic On 2. Fish ID Feature On 3. Digital Depth Display On
CHT 2 (Chart #2) This is the High Speed Scroll mode. It shifts the chart speed into high gear, scrolling echoes at a high rate. It has the following features: 1. Automatic Off 2. Fish ID Feature Off 3. Digital Depth Display Off
DIG 1 (Digital #1) This is the digital only screen. It shows the digital depth display at the top of the screen in very large numbers. The shallow and deep alarm settings are displayed beneath the digital depth. No chart shows on this screen.
FISHEASY ST and TRIFINDER ONLY CHT 1 (Chart #1) This is the default mode used when the unit is first turned on. It has the following features: 1. Automatic On 2. Fish ID Feature On 3. Digital Depth Display On
CHT 2 (Chart #2) Same as Chart-1, but with water temperature added.
CHT 3 (Chart #3) Same as Chart-1, but with speed added.
FISHEASY ST and TRIFINDER ONLY (cont.) CHT 4 (Chart #4) Same as Chart-1, but with water temperature and speed added.
CHT 5 (Chart #5) This is the High Speed Scroll mode. It shifts the chart speed into high gear, scrolling echoes at a high rate. It has the following features: 1. Automatic Off 2. Fish ID Feature Off 3. Digital Depth Display Off
DIG 1 (Digital #3) This is the digital only screen. It shows the digital depth display at the top of the screen in very large numbers. The shallow and deep alarm settings are displayed beneath the digital depth. No chart shows on this screen.
FISHEASY ST and TRIFINDER ONLY (cont.) DIG 2 (Digital #2) Digital depth, water temperature, speed, and distance log (odometer) show on this page. To reset the log, turn the unit off and back on again.
DIG 3 (Digital #3) Digital depth, water temperature, T-2 temperature, and T-3 temperature all show on this screen.
Temperature Probe Select You can select the temperature probe's output that shows on Chart 2 and 4, when more than one temperature probe is connected to a FishEasy ST or a TriFinder. To do this, press a MENU key until the "TEMP PROBE" menu appears as shown at right. Now press the up or down arrow keys until the desired probe appears. Press the PWR key to erase the menu.

ALARMS FISH ALARM The Fish Alarm sounds a tone when a fish symbol appears on the screen. To use the fish alarm, press the menu key until the FISH ALARM menu appears on the screen. Now press the up arrow key to turn the alarm on. Repeat the above steps to turn the fish alarm off.
DEPTH ALARMS The depth alarms are triggered only by the bottom signal. No other echoes will activate these alarms. The depth alarms consist of a shallow and deep alarm. The shallow alarm sounds an alarm tone when the bottom goes shallower than the alarms setting. The deep alarm sounds a tone when the bottom goes deeper than its setting. Both alarms adjust the same, although through different menus. Shallow Alarm To set the shallow alarm, press the menu key repeatedly until the SHAL ALARM menu appears. Press the down arrow key to increase the shallow alarm's depth setting, the up arrow key decreases it. The number in the shallow alarms menu box shows the current shallow alarm setting. When the number reaches the desired setting, release the arrow key. When the bottom depth goes shallower than the alarms setting an alarm tone sounds. At the same time the alarm sounds, a message box appears on the screen as shown at right. Press the up arrow key to silence the alarm. This will turn the alarm sound off until the shallow alarm is triggered again. To turn the alarm off, press the menu key until the shallow alarm menu appears. Then press the up arrow key until the word OFF appears.
Deep Alarm The deep alarm adjusts the same as the shallow alarm. Use the DEEP ALARM menu to adjust the deep alarm. When the bottom signal goes deeper than the setting, an alarm tone sounds. LIGHTS The display is backlighted for night use. To turn the backlights on or off, press the menu key repeatedly until the BACK LIGHT menu appears. Now press the up arrow to turn the lights on or the down arrow to turn them off.
FEET/METER This unit can show the depth in feet or meters. When it is in the metric mode, all depth readings, ranges, zooms, and alarm settings are in meters. When it's in the feet mode, all of the above settings are in feet. To change from feet to meters or vice-versa, press the menu key until the FEET/METER menu appears. Press the down arrow key to switch to metric, the up arrow to switch to feet. Displays show in feet when the unit is first turned on. The menu will clear automatically after a few seconds or you can press the PWR key to clear the screen.

DISPLAY CONTRAST The units display contrast is adjustable to suit different lighting conditions. This will help you see the screen from different angles, or at various times of the day. To adjust the contrast, press the menu key until the DARK/LIGHT menu appears. To decrease it, press the down arrow key. Press the up arrow key to increase the contrast. The bar graph in the Dark/Light menu box
shows a graph of the contrast. The screen will also show the effects of the change. If you reach the maximum or minimum level, a tone sounds alerting you to the limits. The menu will clear automatically after a few seconds or you can press the PWR key to clear the screen.
ASP (Advanced Signal Processing) ASP is a program embedded in the computer that is specifically designed to eliminate noise. It continually monitors the signals from the receiver, determines which echoes are noise and rejects them. This allows true target echoes to display on the screen with a minimum of clutter. This feature is especially useful since it typically lets you operate the boat at all speeds without adjusting the sensitivity or other controls. When the unit is first turned on, ASP is enabled. To turn ASP off, press the menu key repeatedly until the ASP menu appears. Now press the up arrow to turn it on or the down arrow to turn it off. The menu will clear automatically after a few seconds or you can press the PWR key to clear the screen.
SIMULATOR A simulator is built inside that can show a simulated bottom signal with fish signals. All features of the unit work normally when the simulator is in use. You can change the range, zoom, and use the alarms as desired. To use the simulator, press the menu key repeatedly until the SONAR SIM menu appears. Now press the up arrow to turn it on. Repeat the above steps to turn it off, or turn the unit off and back on again.
TROUBLESHOOTING - IMPORTANT INFORMATION! If your unit is not working, or if you need technical help, please use the following troubleshooting section before contacting the factory customer service department. It may save you the trouble of returning your unit. Unit wont turn on: 1. Check the power cables connection at the unit. Also check the wiring. 2. Make certain the power cable is wired properly. The red wire connects to the positive battery terminal, black to negative or ground. 3. Check the fuse. 4. Measure the battery voltage at the units power connector. It should be at least 11 volts. If it isnt, the wiring to the unit is defective, the battery terminals or wiring on the terminals are corroded, or the battery needs charging. Unit freezes, locks up, or operates erratically: 1. Electrical noise from the boats motor, trolling motor, or an accessory may be interfering with the sonar unit. Rerouting the power and transducer cables away from other electrical wiring on the boat may help. Route the sonar units power cable directly to the battery instead of through a fuse block or ignition switch 2. Inspect the transducer cable for breaks, cuts, or pinched wires. 3. Check the transducer and power connector. Make certain it's securely plugged in to the unit. Weak bottom echo, digital readings erratic, or no fish signals: 1. Make certain transducer is pointing straight down. Clean the face of the transducer. Oil, dirt, and fuel can cause a film to form on the transducer, reducing its effectiveness. If the transducer is mounted inside the hull, be sure it is shooting through only one layer of fiberglass and that it is securely bonded to the hull. Do NOT use RTV silicone rubber adhesive or MarinetexTM. 2. Electrical noise from the boats 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. 3. The water may be deeper than the sonars ability to find the bottom. If the sonar cant find the bottom signal while its in the automatic mode,

the digital 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, 0100 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 units 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 boats 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 units power and transducer cables away from other electrical wiring on the boat. No fish arches when the Fish ID feature is off: 1. Make certain transducer is pointing straight down. This is the most common problem if a partial arch is displayed. See the Fish Arch section in your owner's manual for more information. 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 fishs echo from the time it enters the cone until it leaves. If the sensitivity is not high enough, the unit displays 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 display as straight horizontal lines.
ELECTRICAL NOISE A major cause of sonar problems is electrical noise. This usually appears on the sonars display as random patterns of dots or lines. 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 certain the engine is off, also. Turn your unit on, then turn off ASP (Advanced Signal Processing). 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 sonars 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 units 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 sonars wires away from it. You may need to route the sonar units 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 units 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.

How to Obtain Service

(Canadian Customers Only)
We back your investment in quality products with quick, expert service and genuine Eagle replacement parts. If you need service or repairs, contact the Eagle Factory Customer Service Department at the toll-free number listed below. A technician may be able to solve the problem and save you the inconvenience of returning your unit. You will be asked for your unit's serial number.

800-324-1354

Canada Only. Monday through Friday 8:00 A.M. - 8:00 P.M. Central Time.
(International Customers Only)
If you need service or repairs, contact the dealer in the country you purchased your unit. WARRANTY REPAIR WILL BE HONORED ONLY IN THE COUNTRY UNIT WAS PURCHASED. Please follow the shipping instructions shown below on this page if you have to mail your unit to the dealer. For proper testing, repair, and service, send a brief note with the product describing the problem. Be sure to include your name, return shipping address, and a daytime telephone number.

Shipping Information

When sending a product for repair, we recommend you do the following: 1. Always use the original shipping container and filler material the product was packed in when shipping your product. 2 Always insure the parcel against damage or loss during shipment. Eagle does not assume responsiblity for goods lost or damaged in transit. 3. For proper testing, repair, and service, send a brief note with the product describing the problem. Be sure to include your name, return shipping address, and a daytime telephone number.
Accessory Ordering Information
To order accessories such as power cables or transducers, please contact: 1. Your local marine dealer. Most quality dealers that handle marine electronic equipment should be able to assist you with these items. Consult your local telephone directory for listings. 2. Canadian customers only can write: Lowrance/Eagle Canada, 919 Matheson Blvd., E. Mississauga, Ontario L4W2R7 or fax 416-629-3118

(U.S.A. Only)

We back your investment in quality products with quick, expert service and genuine Eagle replacement parts. If you're in the United States and you have questions, please contact the Factory Customer Service Department using our toll-free number listed below. You must send the unit to the factory for warranty service or repair. Please call the factory before sending the unit. You will be asked for your unit's serial number. Use the following tollfree number:

Your unit is covered by a full one-year warranty. (See inside for complete warranty details.) If your unit fails and the failure is not covered by the original warranty, Eagle has a flat-rate repair policy that covers your unit and accessories packed with the unit at the factory. There is a 180-day warranty on all non-warranty repairs from the factory, which is similar to the original warranty, but is for 180 days rather than one year. For further details, please call us at the above number.
Eagle Electronics may find it necessary to change or end our shipping policies, regulations, and special offers at any time. We reserve the right to do so without notice.
To order accessories such as power cables or transducers, please contact:
1) Your local marine dealer. Most quality dealers that handle marine electronic equipment should be able to assist you with these items. Consult your local telephone directory for listings. 2) LEI Extras, Inc. P.O. Box 129 Catoosa, OK 74015-0129 or call 800-324-0045 (USA orders only.)
Remember, non-warranty repairs are subject to Eagle's published flat-rate charges and 180-day warranty.
EAGLE ELECTRONICS PO BOX 669 CATOOSA OK 74015

LITHO IN U.S.A.

988-0143-49