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Troubleshooting

Unit won't turn on:

1. Check the power cable's 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 unit's power connector. It should
be at least 11 volts. If it isn't, the wiring to the unit is defective, the

battery terminals or wiring on the terminals are corroded, or the
battery needs charging.

Unit turns on only in simulator mode:

There is a problem with the transducer or the transducer cable. Check

the cable for damage.

Unit freezes, locks up, or operates erratically:

1. Electrical noise from the boat's 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 unit's 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 both the transducer and power connectors. Make certain both

are securely plugged in to the unit.

Weak bottom echo, digital readings erratic, or no fish signals:

1. Make certain the 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.
2. Electrical noise from the boat's motor can cause the sonar to
automatically increase noise rejection level. This can cause the unit to

eliminate weaker signals (fish) from the display.
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.
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.

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Содержание PRO X51

Страница 1: ...Pub 988 0151 59A X51 Pro Fish finding Depth Sounding Sonar Installation and Operation Instructions ...

Страница 2: ...r 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 X51 Pro shown For free owner s manuals and other information visit our web site www lowrance com Lowrance Electronics Inc 12000 E Skelly Dr Tulsa OK USA 74128 2486 Printed in...

Страница 3: ... Bracket and Portable 17 Portable Transducer Assembly 20 Section 2 Operation 21 Menus 22 Display 22 Chart Scroll 23 Full Chart 23 Depth Range Zoom 24 Zoom 24 Sensitivity 25 Grayline 26 Fish I D 27 Fishtrack 27 Chart Scroll Speed 28 Noise Reject and ASP Advanced Signal Processing 28 Pro Tips 28 Alarms 28 Fish Alarm 28 Depth Alarms 29 Shallow Alarm 29 Deep Alarm 29 Backlight 30 Display Contrast 30 B...

Страница 4: ... off Sonar Frequency 200 kHz Transducers A Skimmer transducer comes packed with your sonar unit Its 20 cone angle offers a wide fish detection area of up to 60º with high sensitivity settings Operates at boat speeds up to 70 mph 61 kts Transmitter 800 watts peak to peak 100 watts RMS Sonar sounding depth capability 600 feet 180 meters Actual capability depends on transducer configuration and insta...

Страница 5: ...ou can install the sonar system in some other order if you prefer but we recommend this installation sequence Caution You should read over this entire installation section before drilling any holes in your vessel 1 Determine the approximate location for the sonar unit so you can plan how and where to route the cables for the transducer and power This will help you make sure you have enough cable l...

Страница 6: ...nstallation Tools include two adjustable wrenches drill 29 0 136 drill bit flat head screwdriver Supplies high quality marine grade above or below waterline sealant adhesive 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 boa...

Страница 7: ...pod style transducer is shown here but the principle is the same for Skimmers inside a hull 4 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 Good and poor transducer location...

Страница 8: ... 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 t...

Страница 9: ...to determine if you can satisfactorily shoot through the hull Transom Transducer Assembly and Mounting The best way to install the transducer 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 1 Assembling the bracket Press the two small plastic ratchets into the sides of the ...

Страница 10: ...nment letter until you can place the transducer on the transom correctly Insert bolt and check transducer position on transom Assemble transducer and bracket 3 Assembling the transducer 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 4 Drilling mounting holes Hold the transducer and bracket as...

Страница 11: ...hown in the following figures Route cable over bolt and through bracket Side view shown at left and seen from above at 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 adhesive compound Adjust the trans...

Страница 12: ...e 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 adhesive 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 d...

Страница 13: ...er 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 angles and their effects on fish arches Transducer aimed too far back Transducer aimed too far forward Proper tr...

Страница 14: ... 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 WARNING Do not remove any material from your inner hull unless you know the hull s composition Careless grinding or cutting on your hu...

Страница 15: ...n it on then hold the transducer over the side of the boat in the water Adjust the sensitivity and range controls until a second bottom echo is seen on the display You ll need to turn off Auto Sensitivity Auto Depth Range and ASP Try a range setting that is two to three times the water depth The harder more rocky the bottom the easier it will be to get a second bottom signal Don t touch the contro...

Страница 16: ...o step 4 If you have to turn up sensitivity by more than five keystrokes to get a good signal the transducer should be mounted on the outside of the hull This is especially true if you have to turn sensitivity all the way up to get a decent bottom signal 4 Most people can get good results by following steps 1 through 3 so this step is optional If you want to make an extra effort to be absolutely s...

Страница 17: ...from the package and place them on the paper plate Thoroughly stir the two compounds together until the mixture has a uniform color and consistency Do not mix too fast or bubbles will form in the epoxy After mixing you have 20 minutes to complete the installation before the epoxy becomes unworkable Spread a thin layer of epoxy about 1 16 or 1 5 mm thick on the face of the transducer as shown in th...

Страница 18: ...cted to a power supply electrolysis can occur in the power cable plug This may result in corrosion of the plug body along with the electrical contacts in the cable and the unit s power socket In saltwater environments we recommend you connect the power cable to the auxiliary power switch included in most boat designs If that results in electrical interference or if such a switch is not available w...

Страница 19: ...l the wires are attached correctly Mounting the Sonar Unit You can install the sonar unit on the top of a dash with the supplied bracket Front view left and side view right showing dimensions of the X51 Pro when mounted on quick release bracket The swivel base not shown adds 0 4 10 mm to the height The swivel base width is 4 25 10 7 cm and the depth is 3 12 79 47 mm 12 volt battery Black wire Red ...

Страница 20: ...ers the hole holds the cable in position and results in a neat installation Some customers however prefer to mount the bracket to the side of the cable hole it s a matter of personal preference After drilling the hole pass the connector up through the hole from under the dash If you wish you can fill in the hole around the cable with a good marine sealant adhesive compound Some marine dealers stoc...

Страница 21: ...he unit with the other hand To adjust the vertical viewing angle pinch the ratchets with one hand then tilt the unit with your other hand Release the ratchets and the unit locks into the new position You can also turn the unit on its special swivel base for a better horizontal viewing angle To dismount the unit for storage press the ratchets and lift the unit off the bracket Portable Sonar Install...

Страница 22: ...ied 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 ...

Страница 23: ...P or MENU DOWN Most of the time the instructions require you to press either menu key so the text simply uses the word MENU Usually when we say MENU you can simply press the MENU UP key for consistency This sonar unit has many features that are accessed with the menu keys The MENU UP key moves up or forward through the menus the MENU DOWN key moves down or backward To see the first menu simply pre...

Страница 24: ...elections This screen shows a typical menu the Scroll Speed menu Display The lights flash for about 20 seconds when the unit is turned on The backlight menu first appears on the screen To turn the lights on press UP ARROW If you don t press a key the menu will disappear after a few seconds If you don t want to wait press PWR to clear the menus from the screen Full Chart page showing digital depth ...

Страница 25: ...d again If you accidentally press PWR to clear the menu while the chart is stopped you must press MENU until the SCROLL SPEED menu reappears then follow the instructions from the preceding paragraph Full Chart This shows all echoes scrolling across the full screen This is the default page The bottom signal scrolls across the screen from right to left The line at the top of the screen represents th...

Страница 26: ... range set to 40 feet This in effect zooms or enlarges the display to show the water column from 0 to 40 feet deep In this figure the boat is in 57 5 feet of water but only the top 40 feet of the water column is shown on the screen Zoom The zoom feature enlarges all images on the screen by doubling the size of the echoes a 2X zoom To zoom the display press the MENU key until the ZOOM menu appears ...

Страница 27: ...e 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 These figures show results of different sensitivity levels on the same loc...

Страница 28: ...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 To change the Grayline level press MENU until the GRAYLINE menu appears At left little Grayline indicates a soft bottom...

Страница 29: ... 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 To turn Fish I D on press MENU until the FISH ID menu appears Press UP ARROW to select ON then press PWR To turn it back off repeat the above steps but press DOWN ARROW to select OFF Fish ID menu and symbol...

Страница 30: ...ically gives you the best display possible under most conditions The ASP feature has three settings Off Low and High To change the ASP setting press MENU DOWN until NOISE REJECT appears Use the up and down arrow keys to select the desired setting then press PWR to clear the menu Pro Tips Your unit has a Pro Tips menu featuring fishing tips from professional anglers To access Pro Tips press the MEN...

Страница 31: ...he number reaches the desired setting press PWR to clear the menu When the bottom depth goes shallower than the alarm s setting an alarm tone sounds and a message box appears on the screen Press PWR to silence the alarm This turns the alarm sound off until the shallow alarm is triggered again To turn the alarm off press MENU DOWN repeatedly until SHALLOW ALARM appears Press DOWN ARROW until the wo...

Страница 32: ...this data on or off press MENU DOWN until the BATTERY VOLTAGE menu appears Use the arrow keys to select on or off then press the PWR key to clear the menu Depth Units of Measure This unit can show the depth in feet or meters To change the depth units of measure press MENU DOWN until the UNITS menu appears Use the arrow keys to select the desired unit of measure then press the PWR key to clear the ...

Страница 33: ... turn it on and press PWR to clear the menu Repeat the above steps to turn it off or you can simply turn the unit off and back on again Digital Data Size Depth and Temp The size of the digital numbers for the depth be changed to medium or large The digital display for both Depth and Temperature can also be turned off or on To change either of these options press MENU DOWN until either the DEPTH SI...

Страница 34: ... 13 14 24 25 34 F Fish Alarm 28 29 Fish Depths 27 FishTrack 27 Frequency 2 G Grayline 26 I Installation 3 14 18 19 20 P Power 2 3 16 17 18 19 20 21 30 33 34 35 R Range 3 13 14 24 25 34 Repeat Play List 29 31 Route 3 5 9 10 11 16 20 33 35 S Sensitivity 13 25 26 35 Simulator 31 33 Specifications 2 T Temperature Sensors 2 7 Transducer 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 23 33 34 35 Z Zoomin...

Страница 35: ...tery instead of through a fuse block or ignition switch 2 Inspect the transducer cable for breaks cuts or pinched wires 3 Check both the transducer and power connectors Make certain both are securely plugged in to the unit Weak bottom echo digital readings erratic or no fish signals 1 Make certain the transducer is pointing straight down Clean the face of the transducer Oil dirt and fuel can cause...

Страница 36: ...pears on the sonar s display as random patterns of dots or lines In severe cases it can completely cover the screen with black dots or cause the unit to operate erratically or not at all To eliminate or minimize the effects of electrical noise try to determine the cause With the boat at rest in the water turn all electrical equipment on the boat off Make sure the engine is also off Turn on your so...

Страница 37: ...D 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 in...

Страница 38: ...ange 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...

Страница 39: ...ry 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 Please do not ship the knobs or mounting bracket with your unit 2 If you are sending a check for repair please place your check in an envelope and tape it to t...

Страница 40: ...Visit our web site Lowrance Pub 988 0151 59A Copyright 2008 All Rights Reserved Printed in USA 042908 Navico ...

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