Lowrance electronic X-25B User's Manual
Contents
1. X 25B INSTALLATION AND OPERATION INSTRUCTIONS E LOWRANCE ELECTRONICS INC 12000 E SKELLY DR TULSA OK 74128 TABLE OF CONTENTS INTRODUCTION vi ii ead eee ee ea SPECIFICATIONS INSTALLATION INSTALLATION ea ab ens ante ear POWER CONNECTIONS KEYBOARD BASICS DISPLAY MENUS iit ane diene OPERATION AUTOMATIC aed ni an dink ith soli enna a E RANGE A A T RANGE UPPER AND LOWER LIMITS vets ZOOM a Na ieee SENSITIVIT Youth ea a A es GRAYLINE FISH ID FISHTRACK GHART SPEED A DISPLAY iii je i ifa API er PP EA JA TA IE AN ALARMS LIGHT FEET METERS DISPLAY CONTRAS T i ii g A ASP Advanced Signal Processing SIMULATOR nsee FISH ARCHES a a WATER TEMPERATURE AND 20 TROUBLESHOOTING WARRANTY we UPS RETURN SERVICE USA ONLY 26 MISSING PARTS 2 2 ian pal Fr N AORE E S 28 HOW TO OBTAIN SERVICE INTERNATIONAL ONLY Le eee eee seen 29 Copyright 1995 Lowrance Electronics Inc All rights reserved All features and specifications in this manual a2. 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 LEI Extras Inc P O Box 129 Catoosa OK 74015 0129 or call 800 324 0045 USA orders only 27 Please check the items in the box against this list You should have all of the items shown on this page If you are missing any of the items please call our special toll free number 1 800 324 1353 A RECORDED MESSAGE will request the following information Please have it ready before you call 1 Your name shipping address and telephone number 2 The part that s missing 3 The model serial number and DATE AND PLACE OF PURCHASE OF YOUR UNIT 4 The best time of day to call you if we have questions Provided that all of the requested information is recorded and approved by our Customer Service Department the missing item s will be shipped directly to you free of charge DISPLAY UNIT RUBBER WASHER RUBBER WASHER Ba GIMBAL KNOB i f GIMBAL KNOB GIMBAL BRACKET TRANSDUCER f BRACKET A HARDWARE FUSE POWER CABLE B FUSE How to Obtain Service Canadian Customers Only We back yo
3. However you can t pass a power or transducer connector and another cable through a 3 4 hole Therefore after drilling the hole pass the transducer connector up through the hole from under the dash Then drop the power cable down from the front side of the dash After installing the transducer and power cables slide the bracket over the hole then route the transducer and power cables out the slot in the back of the bracket Finally fasten the bracket to the dash Attach the X 25B to the gimbal bracket using the supplied gimbal knobs and washers as shown above POWER CONNECTIONS The X 25B works from a 12 volt DC system only For the best results run the power cable directly to the boat s battery Keep the power cable away from other boat wiring especially the engine s wires This will give the best isolation from electrical noise If the supplied cable is not long enough to reach the battery splice 18 gauge insulated wire to it If youdo extend the power cable make certain to attach the in line fuse holder supplied with the X 25B to the battery or power source This will protect both the unit and the power cable in the event of a short Use only a 3 amp fuse IMPORTANT Do not use this product without a 3 amp fuse wired into the power cable Failure to use a 3 amp fuse will void your warranty You can also attach the power cable to an accessory or power buss however you may have problems with electrical interfere
4. repeat the above steps but press the down arrow key instead The Fish ID feature can t be used when the X 25B is in the manual mode If you turn the automatic feature off the Fish ID feature will automatically be turned off also FISHTRACK The X 25B automatically displays the depth of a target when the Fish ID feature places a fish symbol on the screen as shown below left This feature is automatically enabled when the X 25B is turned on To turn it off or on again press the MENU key repeatedly until the Fish Track menu appears as shown below Now press the down arrow key to turn it off Remember Fish ID must be on in order to use the Fish Track feature CHART SPEED The rate echoes scroll across the screen is called the chart speed It s adjustable by pressing the menu key until the chart speed menu appears Chart speed is set to maxi mum when the X 25B is first turned on To decrease it press the down arrowkey Press the up arrow key to increase the speed again The bar graph in the Chart Speed menu box shows agraph ofthe speed Echoes scrolling onto the screen will also show the effects of the change If you reach the maximum minimum level an warning tone sounds To stop the chart first clear any menu from the screen by pressing the ON CLEAR kev Youcan tstopthe chart while a menu is displayed Now press the up arrow key The chart will freeze and the word
5. Be sure to include proof of purchase for warranty verifica tion 3 Write a brief note detailing the problem you re having with the unit Please include your name address and daytime telephone number 4 Please include payment for non warranty repairs Check money order Visa or MasterCard may be used 5 Fillin your name address zip code date and RA number in the blanks provided on the UPS form included with your unit 6 Attach the label to the shipping box tear off the tab for your receipt and give the package to any UPS driver or take the package to any UPS Customer Center You will not be charged for this shipment That s it Your unit will be shipped to Lowrance s customer service department at no charge to you Our normal in plant turnaround on repairs is 3 working days Units under warranty will be returned to you charge NOTE Lowrance will pay UPS surface shipping charges both to and from the factory for this unit in the event it needs repair Your unit is insured against loss or shipping damage when you use the enclosed UPS label 26 KEEP THIS LABEL YOU WILL NEED IT IF YOU EVER NEED TO RETURN YOUR UNIT TO THE FACTORY FOR REPAIR This UPS shipping offer is good only in the continental United States excludes Alaska and Hawaii Lowrance 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
6. STOP appears at the top right portion of the screen To start the chart press the up arrow key again DISPLAY MODE The X 25B has three different screen modes To change modes press the MENU key until the DISP MODE Display Mode menu ap pears Then press the up or down arrow keys until the desired mode number appears The modes are as follows CHT 1 Chart 1 1 Automatic On 2 Fish I D Off 3 Digital depth displav On CHT 2 Chart 2 This is the High Speed Scroll mode It has the following features 1 Automatic Off 2 Fish ID Feature Off 3 All Digital Displays Off Digital This is the digital only screen It shows the digital depth display at the top of the screen very large numbers The shallow and deep alarm settings are displayed beneath the digital depth No chart shows on this screen 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 Note If the Fish ID feature is off it will be turned on when you turn the fish alarm on DEPTH ALARMS The depth alarms are triggered only by the DEPTH FT 60 8 SHAL ALF OFT DEEP ALK OFT 37 3FT FISH ALARM bottom signal No
7. This switches the unit into the range mode which turns the zoom feature off SENSITIVITY 2M 20 34 4FT The sensitivity menu lets you control the unit s ability to pick up echoes low sensitivity level excludes much of the bottom information fish signals and other detail High sensitivity settings lets you see features but it can also clutter the screen with noise and other unwanted signals Typically the best sensitivity level shows a good solid bottom signal with grayline The X 25B adjusts the sensitivity level to keep a solid bottom signal on the screen lt adds a little extra when it s in the automatic mode This gives it the capability to show fish and other detail However situations occur where it becomes necessary to increase or decrease the sensitivity level Typically this occurs when you wish to see more detail so you need to increase the sensitivity The procedure to adjust it is the same whether the unit is in the automatic or manual mode To change the sensitivity level first press the menu key until the sensitivity menu appears If the unit is in automatic the menu shows AUTO SENS Otherwise the menu shows MAN SENS Now press the up arrow key to increase the sensitivity the down arrow to decrease it A vertical bar graph in the menu box shows the sensitivity level Echoes scroll ing onto the screen will also show the effects of the sensitivity change If you reach the maximu
8. to 75 degrees Celcius Extended storage in tempera tures 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 customer service department or your local service center INSTALLATION Bracket You can install the X 25B on the top of a dash or from an overhead with the supplied bracket It can also be installed in the dash with an optional IDA 3 or IDA 4 mounting kit If you use the supplied bracket you may be interested in the optional GBSA 1 swivel bracket kit This converts the X 25B s gimbal bracket to a swivel mount which can be used on the dash or overhead mounting positions Installation instructions for the in dash and swivel mounting kits are supplied with the adapter kits Mount the X 25B in any convenient location provided there is clearance when it s tilted for the best viewing angle Holes in the bracket s base allow wood screw or through bolt mounting It may be necessary to place a piece of plywood on the back side of thin panels to reinforce the panel Make certain there is enough room behind the unit to attach the power and transducer cables Drill a hole in the dash for the power and transducer cables The best location for this hole is immediately under the gimbal bracket This way the bracket covers the hole The smallest hole the power or transducer cable connector can pass through is 3 4
9. 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 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 itis shooting through only one layer of fiberglass and that itis securely bonded to the hull Do NOT use RTV silicone rubber adhesive or Marinetex 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 cancause the unit to eliminate weaker signals such as fish or even structure 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 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
10. 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 29 Your unit s serial number How to Obtain Service We back your investment in quality products with quick expert service and genuine Lowrance replacement parts If you re in the United States and you have questions please contact the Factory Customer Service Depart ment 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 shown above Use the following toll free number 800 324 1356 U S A only Monday through Friday 8 00 A M 8 00 P M Central time except holidays Your unit is covered by a full one year warranty See the back of this flyer for complete warranty details If your unit fails and the failure is not covered by the original warranty Lowrance has a flat rate repair policy that covers your unit and accessories packed with the unit at the fa
11. N SENS Other messages may appear in menu boxes or new menus can appear again depending on previous selections On the screen shown on the previous page the lamp menu is showing Pressing the up arrow key while this menu is on the screen turns the back lights on OPERATION AUTOMATIC When the X 25B is first turned on the automatic feature is enabled This feature automatically adjusts the unit s range and sensitivity according to water conditions It always keeps the bottom depth displayed in the lower portion of the screen To turn the automatic feature off press the menu key until the AUTO MAN menu ap pears Now press the down arrow key This highlights the letters MAN The unit is now inthe manual mode Wait afew seconds and the menu will scroll off the screen s left side Pressing the ON CLEAR key also clears it To turn the automatic feature on again repeat the above steps exceptthis time press the up arrow key AUTO xu MAH You can t adjust the range when the X 25B is in the automatic mode Itis adjustable when the unit is in the manual mode however To do so first put the unit in the manual mode Now press the ON CLEAR key to clear the screen Then press the menu key until the RANGE SEL menu appears as shown be low The current range shows at the bottom ofthe menu In this case the range is 60 feet Now press the up arrow kev to decrease the range the down arro
12. ase the zoom size press the down arrow key to increase the zoom size When the unit is switched into the zoom mode the letters ZM appear at the top of the screen The zoomwindow size displays in the top right corner of the screen On the screen shown at right the zoom size has been changed to 20 feet To turn the zoom feature off press the menu key until the RANGE ZOOM menu appears Now press the up arrow key This switches the unit into the range mode which turns the zoom feature off The X 25B has the following zoom ranges 10 20 30 60 120 240 and 480 feet and 5 10 20 30 50 100 and 150 meters Zoom Manual Operation To operate the zoom feature when the X 25B is in the manual mode first press the menu key Then press the down arrow key in the RANGE ZOOM menu to place the X 25B in the zoom mode The zoom size menu automatically appears next You can change the zoom size by pressing the up or down arrows After you select the desired zoom size press the 10 menu key until the MOVE ZOOM menu appears This menu lets you move the zoom window up or down inone footincrements by pressing the arrowkeys Thus youcan move the zoom window up towards the surface down to the bottom or anywhere in between The window stays where you putit Itdoesn t track the bottom signal To turn the zoom feature off press the menu key until the RANGE ZOOM menu appears Now press the up arrow key
13. ation 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 24 LOWRANCE ELECTRONICS FULL ONE YEAR WARRANTY We our or us refers to LOWRANCE ELECTRONICS INC 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 year 1 from the date of original purchase by you WE MAKE NO OTHER EXPRESS WAR RANTY OR REPRESENTATION OF ANY KIND WHATSOEVER CONCERNING THIS PRODUCT Your remedies under this warranty will be available so long as you can show in areasonable 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
14. ctory There is a 180 day warranty on all non warranty repairs from the factory which is similar to the original warranty butis for 180 days rather than one year For further details please call us at the above number On factory repairs we guarantee your unit willbe repaired in three working days from the time it is received This does not include shipping time If for some reason we cannot meet this commitment we will extend your warranty for another full year free of charge from the date of repair Lowrance also gives you free UPS shipping from anywhere inthe continen tal United States both to and from the factory for all warranty repairs You can also use the enclosed UPS shipping label for non warranty shipments See the inside of this manual for more information Remember non warranty repairs are subject to Lowrance s published flat rate charges and 180 day warranty A 3 working day turnaround time at the factory repair center is guaranteed Does not include shipping time LITHO IN U S A 988 0105 51
15. down arrow key when the proper menu appears To adjust the contrast wait for the DARK LIGHT menu to appear Now press the up arrow key to darken the screen the down arrow to lighten it The menus disappear after a few seconds If you don t want to wait press the ON CLEAR key to clear the menus from the screen When the X 25B is first turned on the display appears similar to the one at right The unitis in the automatic mode The depth range displays on the upper left side of the screen Inthe example shown at the bottom of the previous page the range is from 0 to 60 feet and the bottom depth is 34 4 feet NOTE Turning the X 25B off erases all user settings and it returns to the system defaults For example if you turn the lights on then turn the unit off the next time you turn the unit on the lights will be off since the default setting for the lights is off MENUS The X 25B uses menus to guide you through the unit s 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 ON CLEAR 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 MA
16. e backlights on or off press the menu key repeatedly until the LAMP menu appears Now press the up arrow to turn the lights on or the down arrow to turn them off The menu will clear automatically after a few seconds FEET METER The X 25B can show the depth in feet or meters When the unit is in the metric mode all depth readings ranges zooms andalarm settings are in meters When a unit is in the feet mode all ofthe above settings are in feet To change from feet to meters or vice versa press the menu key until the FEET METER menu appears as shown at the bottom of the previous page Press the down arrow key to 16 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 ON CLEAR key to clear the screen DISPLAY CONTRAST The unit s 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 cl
17. e cone first strikes it is shown as A below When the center of the cone strikes the fish the distance is shorter as shown B As the cone leaves the fish the distance in creases again as shown in When the Fish 1 0 mode is off the depth of the water will affect the size and shape of the fish arch due to the cone angle diameter For example if the cone passes over a fish in shallow water the signal displayed on the X 25B may not arch at all This is due to the narrow cone diameter and the resolution limitations of the display Very small fish probably will not arch at all Medium sized fish will show a partial arch or a shape similar to an arch if they re in deep water BOAT S DIRECTION OF TRAVEL Large fish will arch but turn the sensitivity up in deeper water to see the arch Because of water conditions such as heavy surface clutter thermoclines etc the sensitivity sometimes cannot be increased enough to get fish arches One of the best ways to get fish arches is to expand or zoom a segment of the water For example from 45 to 60 feet The smaller the segment the better the screen resolution will be The easiest way to do this on the X 25B is with the Zoom feature This feature expands the echoes making it easier to see detail For the best results turn the sensitivity up as high as possible without getting too much noise on the screen In medium to deep water this method should work to dis
18. e fish s echo from the time it enters the cone until itleaves Ifthe 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 a0 to60foot 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 onthe 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 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 X 25B 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 sonar s display For example turn on the bilge pump and view the sonar dis
19. ear automatically after a few seconds or press the ON CLEAR key to clear the screen ASP Advanced Signal Processing ASP is a program embedded in the X 25B s 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 adjust ing the sensitivity or other controls When the X 25B 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 ON CLEAR key to clear the screen SIMULATOR The X 25B has a simulator built into it that can show a simulated bottom signal with fish All features of the X 25B 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 ap pears 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 FISH ARCHES Fish arches are created when the cone of sound passes over a fish The distance to a fish when th
20. gligence 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 LOWRANCE ELECTRONICS 12000 E SKELLY DRIVE TULSA OK 74128 800 324 1356 25 Lowrance s UPS Return Service Lowrance Electronics and United Parcel Service UPS are proud to offer allofour customers free shipping for all units sentto us for repair or service If you have to send this unit to the factory and you are in the continental United States use the enclosed UPS shipping label for easy free shipping to our factory customer service department There are six easy steps 1 Call Lowrance at the toll free number on the front of this flyer for a Return Authorization RA number and instructions about what accessories to return Do not return a product to the factory without a Return Authorization RA Number 2 Pack your unit and any accessories in the original shipping container if possible
21. he LOWER LIMIT menu appears Now press the down arrow key to increase the lower limit or the up arrow key to increase it When you have the limit set wait a few seconds and the menu will scroll off the screen s left side Pressing the ON CLR key also clears it 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 allechoes that appear onthe screen The unit doesn t track the bottom in the manual mode andthe adjustments are slightly differ ent 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 Anew menu immediately appears as shown at the top of the next page 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 below This means the X 25B is tracking the bottom in a zoom window always keeping it on the display Press the up arrow key to decre
22. lert ing you to the limits The level chosen by the X 25B when it s first turned on is usually adequate for most conditions Experiment with your unit to find the Grayline setting that s best FISH ID FEATURE The Fish ID feature identifies targets that meet certain conditions as fish The microcomputer analyses all echoes and eliminates surface clutter thermoclines and other undesirable signals In mostinstances remaining targets are fish The Fish ID feature displays symbols on the screen in place of the actual fish echoes There are four symbol sizes tiny small medium and large These show the relative size between targets In other 12 words it displays a small fish symbol when it thinks a target is a small fish a medium fish symbol on a larger target etc The microcomputer is sophisticated but it can be fooled It can t distin guish between fish and other suspended objects such as turtles sub merged floats air bubbles etc Individual tree limbs extending outwards from a group of limbs are the hardest objects for the Fish ID feature to distinguish from fish You may see Fish ID symbols on the screen when in fact there are no fish Practice with the unit when the Fish ID feature is on and off to become more familiar with Fish ID To turn this feature on press the menu key until the Fish ID feature s menu appears as shown at right Now press the up arrow key This turns the feature on To turn it off
23. m or minimum sensitivity level atone sounds alerting you to the limits After vou ve adjusted the unit to the desired sensitivity level press the ON 11 CLEAR key to clear the display If you wait a few seconds it will automatically clear GRAYLINE Grayline lets you distinguish between strong and weak echoes It paints gray on targets that are stronger than a preset level This shows the difference between a hard or soft bottom large fish versus smaller ones or rocks and brush on the bottom For example a soft muddy or weedy bottom returns a weaker signal which shows a narrow or no gray line A hard bottom returns a strong signal that causes a wide gray line If you have two targets of equal size one with gray and the other without the target with gray is the stronger echo This helps distinguish fish from structure or the larger fish from a smaller one Gravline is adjustable Since it shows the difference between strong and weak echoes changing the level may require a different sensitivity setting To change the Grayline level first press the MENU key until the Grayline menu appears Now press the up arrow key to increase the level the down arrow to decrease it The bar graph in the Grayline menu box shows the level of Gravline now in use Echoes scrolling onto the screen will also show the effects of the Grayline change If you reach the maxi mum or minimum level a tone sounds a
24. more at different depths Thermoclines are important to fishermen because they are areas where fish are active Many times bait fish will be above the thermocline while larger game fish will suspend in or just below it 20 LE 83 78 SURFACE LAYER ABSORBS HEAT FROM ME SUN 77 EPILIMNION 76 75 THERMOCLINE 1 68 MOST PRODUCTIVE ZONE FOR FISHING 56 VARIES IN DEPT DUE TO WIND 50 47 The X 25B can detect this invisible layer in the water but the sensitivity will probably have to be turned up to see it TROUBLESHOOTING 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 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 21 Unit freezes locks up or operates erratically 1 Electrical noise from the boat s motor trolling motor or an accessory may be interfering
25. nce This units has reverse polarity protection No damage will occur if the power wires are reversed However the unit will not work until the wires are attached correctly 2 RED BLACK BN 5 WIRE amp FUSE 12 VOLT BATTERY KEYBOARD BASICS The unit sounds a tone when you press any key This tells you the unit has accepted a command ON CLEAR Use this key to turn the unit on It also clears menu selections and the menus from the screen OFF This key turns the unit off MENU The X 25B has many features that are accessed with this key To see the first menu press the MENU key To see the other menus press the 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 onthe screen Now press the up arrow key The chart freezes andthe word STOP appears at the top of the screen To start the chart press the up arrow key again DISPLAY General The lights flash for about ten seconds when the X 25B is turned on Three menus appear one after the other The menus are the lights LAMP feet meter selection FEET METER andcontrast adjustment DARK LIGHT To turn the lights on press the up arrow key To switch from feet to meters press the
26. 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 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 22 causes the sonar to automatically increase its Discrimination or noise rejection feature This cancause 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 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 afish arch ithas to be able to receive th
27. 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 alarm s setting The deep alarm sounds a tone when the bottom goes deeper than it s 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 in crease the shallow alarm s depth setting the up arrow key decreases it The number in the shallow alarm s menu box shows the current shallow alarm setting When the number reaches the desired setting release the ar row key When the bottom depth goes shal lower than the alarm s setting an alarm tone 15 sounds Atthe 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 ap pears 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 X 25B s display is backlighted for night use Toturnth
28. play fish arches If you see fish signals when the unit is in the manual mode but don t get fish symbols when Fish I D is on try increasing the sensitivity WATER TEMPERATURE AND THERMOCLINES Water temperature has an important if not controlling influence upon the activities of all fish Fish are cold blooded and their bodies are always the temperature of the surrounding water During the winter colder water slows down their metabolism At this time they need about a fourth as much food as they consume in the summer Most fish don t spawn unless the water temperature is within rather narrow limits The surface temperature meter built into the X 25B helps identify the desired surface water spawning temperatures for various species Trout can t survive in streams that get too warm Bass and other fish eventually die out when stocked in lakes that remain too cold during the summer While some fish have a wider temperature toler ance than others each has a certain range within which it tries to stay Schooling fish suspended over deep water lie at the level that provides this temperature We assume they are the most comfortable here The temperature of water in the lake is seldom constant from top to bottom Layers of different temperatures form and the junction of a warm and cool layer of water is called a thermocline The depth and thickness of the thermocline can vary with the season or time of day In deep lakes there may be two or
29. play for noise If noise is present turn the pump off then turn onthe 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 23 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 Ifno noise displays onthe 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 cavit
30. re subject to change without notice All screens in this manual are simulated INTRODUCTION Thank you for purchasing a Lowrance sonar Your X 25B is a high quality sonar designed for both professional and novice fishermen These units have an automatic feature that finds and displays the bottom fish structure and more All you have to do is press the on key However if you wish to fine tune the unit simply press the menu key The X 25B has powerful features available through easy to use menus To get started with your Lowrance unit first read the installation section This is where it all begins Improper installation can cause problems down the road After vou ve read the instructions install the unit then read the rest of the manual The more you know about your unit the better it will perform for you Take this manual for reference when you head for the water SPECIFICATIONS Dimensions 5 9 W x 5 35 H x 3 4 D Input Voltage 10 15vDC Current Drain 350 ma lights off 500 ma lights on Transmitter Frequency 192 kHz Output Power 600 watts peak to peak 75 watts RMS Display 100 pixels H x 65 pixels W Supertwist Liquid Crystal Display 5 9 m 3 4 5 35 NOTICE The storage temperature for your unit is from 4 degrees to 167 degrees Fahrenheit 20 degrees
31. ur investment in quality products with quick expert service and genuine Lowrance replacement parts If you need service or repairs contact the Lowrance 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 1356 Canada Only Monday through Friday 8 00 A M 8 00 P M Central Time How to Obtain Service 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 please 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 Lowrance 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
32. w kev increases the range After vou select the desired range press the ON CLEAR key to clear the display If you wait a few seconds it automatically clears The X 25B 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 NOTE The depth capability of the X 25B depends on the transducer installation water and bottom conditions and other factors RANGE Upper and Lower Limits The X 25B lets you change the upper and lower range limits when it s in the manual mode This lets you Zoom on segments of the water as small as 10 feet In other words you can set the upper limit to 25 feet and the lower limit to 35 feet regardless of the bottom depth This in essence gives you a 10 foot zoom You can choose any segment of the water as long as the distance between the upper limit and lower limit is 10 feet 10 meters or more To change the upper limit first make certain the unitis in the manual mode Next press the MENU key until the UPPER LIMIT menu appears Now press the down arrow key to increase the upper limit or the up arrow key to increase it After you ve finished wait a few 8 21 FOOT UPPER LIMIT seconds and the menu will scroll off the screen s left side Pressing the ON CLR key also clears it To change the lower limit again make certain the unit is in the manual mode Press the MENU key until t
33. 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 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 CONSEQUEN TIAL 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 ne
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