How to Obtain Service (U.S.A. Only) We backyourinvestmentin quality productswith quick, expertserviceand genuine Lowrance®replacement parts. If you're in the United Statesand you have questions, please contacttheFactory CustomerService Department using ourtoll-freenumber listed below. You mustsend the unitto the or factoryforwarrantyservice repair. Please callthefactorybeforesending the unit. You will be askedforyourunit's serial number (shown above). Use the following toll-free number: 800-324-1356 Yourunitiscoveredby afullone-yearwarranty. (Seepage 29 forcomplete warrantydetails.) If your unit fails and the failure is not coveredby the originalwarranty, Lowrance has aflat-rate repair policy that coversyour unitandaccessories packedwiththe unitatthefactory. Thereisa180-day whichissimilartothe warrantyonallnon-warranty repairsfrom thefactory, original warranty, but is for 180 days rather than one year. For further details,please call us at the above number. Lowrance Electronics may find it necessary to change or end our shipping policies, regulations, and special offers at any time We reserve the tight to do sowithout notice. To orderaccessoriessuchas powercables ortransducers, 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 listings. for 2) LEI Extras, Inc. P.O. Box 129 Catoosa, OK 74015-0129 or call 800-324-0045 (USA orders only.) TM AccessoryOrdering Information -- INSTALLATION AND OPERATION INSTRUCTIONS L!® LITHO IN U.S.A. : 988-0135-34 LOWRANCE PDF compression, OCR, web-optimization with CVISION's PdfCompressor ,' ..: How to Obtain Service We back your investment in quality products with quick, expert service and genuine Lowrance replacement parts. Ifyou need service or repairs, contact the Lowrance Factory Customer Service Department atthetoll-free number listedbelow. Atechnician maybeable tosolvetheproblemand saveyou theinconvenience ofreturning yourunit.You will beasked for your unitsserial number. CanadaOnly. Monday through Friday 8:00 A.M. - 8:00 P.M. Central Time. (Canadian Customers Only) 800-324-1356 How to Obtain Service (International Customers Only) If you needserviceor repairs, contact the dealerin the country you purchased your unit. WARRANTYREPAIR WILL BE HONORED ONLY IN THE COUNTRY UNIT WAS PURCHASED. Pleasefollowthe shipping instructions shown below on this page ifyou have to mail your unit tothe dealer.For propertesting, repair, and service, send abrief notewiththe product describing the problem. Be sure to include your name, return shipping address, and a daytimetelephone number. When sendinga product for repair, we recommend you do the following: 1. Alwaysuse the original shipping container and filler material the product was packed inwhen shippingyour product. Shipping Information 2 Alwaysinsure the parcel agaiA& damage orloss during shipment. Lowrance does not assume responsibility for goods lost or damaged in transit. 3. For proper testing,repair, and service, sendabrief notewith the product describing the problem. Be sure to include your name, return shipping address, and a daytime telephone number. AccessoryOrdering Information To orderaccessories suchas power cables ortransducers, please contact: 1. Yourlocal marinedealer. Most qualitydealers thathandle marineelectronic equipment should be able to assistyou with theseitems.Consultyour local telephone directory for listings. 2. Canadian customers only can write: Lowrance/Lowrance Canada, 949 Matheson Blvd., E. Mississauga, Ontario L4W2R7 orfax 905-629-3118 PDF compression, OCR, web-optimization with CVISION's PdfCompressor Notes: - TABLE OF CONTENTS INTRODUCTION INSTALLATION BRACKET POWER CONNECTIONS SPEED/TEMPERATURE SENSORS KEYBOARD BASICS OPERATION POWER/LIGHTS MENUS MODES AUTOMATIC SENSITIVITY RANGE ZOOM Automatic Operation Manual Operation GRAYLINE® CHARTSPEED FISH ID FISHTRACKTM .1 .1 2 S 6 7 7 7 7 10 10 11 12 12 13 13 14 IS 15 16 16 17 17 17 16 18 19 19 20 20 21 21 CHARTSETUP CHARTCURSOR DISPLAYZOOM BAR DISPLAYZONEBAR DIGITAL SONAR ALARMS DEPTH ALARMS ZONEALARM FISHALARM ADJUST CHARTSURFACE CLARITY ADVANCED SIGNAL PROCESSING (ASP) SYSTEM SETUP AUDIO/DISPLAY SYSTEM INFORMATION UNITSOF MEASURE RESET DISTANCE LOG TEMPERATURE GRAPH SIMULATOR PRESET OPTIONS KEELOFFSET CALIBRATE SPEED WINDOWS SUMMARY TROUBLESHOOTING WARRANTY INTERNATIONAL SERVICE INFORMATION 22 22 22 22 23 23 23 24 25 26 29 INSIDE BACK COVER All rights reserved. All featuresand specifications subjectto Change withoutnotice. All screens in this manual are simulated. Copyright0 1999, Lowrance Electronics, Inc. PDF compression, OCR, web-optimization with CVISION's PdfCompressor LOWRANCE ELECTRONICS FULL ONE-YEAR WARRANTY We', "our,or"us"referstoLOWRANCE ELECTRONICS, the manufacturerof thisproduct. "You" or "yourrefers tothe first person who purchases this product as aconsumer item for personal, family,or household use. Wewarrantthisproductagainst defects ormalfunctions inmaterials andworkmanship, and failuretoconform tothisproduct's written specifications, all foroneyear(1)fromthe against date of original purchaseby you. WE MAKE NO OTHER EXPRESS WARRANTY OR REPRESENTATION OF ANY KIND WHATSOEVER CONCERNING THIS PRODUCT. Yourremedies underthiswarranty willbeavailable so long asyoucan showinareasonable mannerthat any defect ormalfunction inmaterials or workmanship, or eny non-conformity with the product's written specifications, occurred within one year from the date of your original purchase, whichmust be substantiated by a dated sales receipt or salesslip. Any suchdefect, malfunction, or non-conformitywhichoccurs within oneyearfromyouroriginal purchase date will either be repaired without charge or be replaced with a new product identical orreasonablyequivalenttothisproduct, atouroption,withinareasonabletime after our receiptof the product. If suchdefect, malfunction, or non-conformity remains after a reasonable numberof attempts to repair by us, you may elect to obtain withoutcharge a the replacementof productorarefund fortheproduct. THIS REPAIR, REPLACEMENT,OR REFUND (AS JUST DESCRIBED) IS THE EXCLUSIVE REMEDY AVAILABLE TO YOU AGAINSTUS FORANY DEFECT, MALFUNCTION, OR NON-CONFORMITY CONCERNING THE PRODUCT OR FOR ANY LOSS OR DAMAGE RESULTING FROM ANYOTHER CAUSE WHATSOEVER. WEWILLNOTUNDER ANYCIRCUMSTANCES BE LIABLETO ANYONEFORANY SPECIAL, CONSEQUENTIAL, INCIDENTAL, OR OTHER INDIRECT DAMAGE OF ANY KIND. Some statesdonot allow the exclusion orlimitation of incidentalorconsequential damages, so the above limitations or exclusions may not applyto you. This warranty does NOTapply 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 beeneffaced, altered, or removed, or (4) when any defect, problem, loss, ordamage has resulted from any accident, misuse, negligence, or carelessness, or from any failure to providereasonable and necessary maintenance in accordance with the instructions of the owner's manual forthe product. We reserve the right to make changes or improvements in our products fromtime to time without incurring the obligation to install such improvements or changes on equipment or items previously manufactured. This warranty givesyou specific legal rights andyou mayalso have otherrights which may vary from state to state. REMINDER: You must retain the salesslip orsalesreceipt proving the dateof your original purchase in case warranty service is ever required. PDF compression, OCR, web-optimization with CVISION's PdfCompressor 29 NOISE A major causeofsonarproblems is electrical noise. Thisusuallyappears onthesonar'sdisplay as random patterns ofdotsor lines. Inseverecases, it can completely cover the screen with black dots, or caUse the unit operate erratically, or not at all. INTRODUCTION TheLCG-2400 the latestmember ofthe Lowrance familythat combines is a high performance sonarwitha wide, highdefinition screen. Using menu featuresand 'soft-key"operation, theLCG-2400 is also easy to use.The wide screen shows theunderwater worldwith high resolution and detail. The displayand keyboard are also lighted for nightoperation. The LCG2400 has digital boat speed, surface water temperature, and distance travelled (log)screens. SPECIFICATIONS Dimensions TransmitterFrequency TransmitterPower Display Toeliminate orminimizetheeffects of electrical noise,firsttryto determine the cause.With the boat at rest in thewater,the firstthing you shoulddo isturn all electrical equipment on theboatoff. Make certain the engineis off, also. Turn your LCG-2400 on, then turn off ASP (Advanced Signal Processing). There shouldbe asteadybottomsignalon the display. Now turn on eachpieceofelectrical equipment on the boat and viewtheeffect on thesonar's display. For example, turn onthebilgepump and viewthe sonardisplayfor noise. If no noise is present, turnthepump off, then turn onthe VHFradio andtransmit. Keep doing thisuntil all electrical equipment has been turned on, theireffectonthesonardisplay noted, thenturnedoff. If youfind noise interference froman electrical instrument, trolling motor, pump,or radio,trytoisolatethe problem.You canusually reroutethesonar unit's power cable and transducer cable away from the wiring that is causingthe interference. VHF radio antennacables radiate noisewhen transmitting, so be certain to keep the sonar's wires away from it. You may need to route the sonar unit'spower cabledirectlyto the battery to isolate it from otherwiring on theboat. If no noisedisplayson the sonar unitfromelectrical equipment, then make certain everythingexceptthe sonar unitisturnedoff, then starttheengine. Increase the RPM with the gearshift in neutral. If noise appearson thO display, the problem could be one of threethings;sparkplugs, alternator, or tachometer wiring. Try using resistor spark plugs, alternatorfilters,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. Makecertain to usethe in-line fuse supplied with the unitwhen wiring the power cableto the battery. When no noiseappears on the sonar unitafterall of the abovetests,then the noise source is probablycavitation. Many novices or persons with limited experience make hastysonarinstallations whichfunctionperfectly in shallowwater,orwhen the boat is at rest. In nearlyall cases, the cause ofthemalfunction will be the location and/orangle ofthetransducer. The faceofthetransducermust be placed in a location that hasa smooth flow of waterat all boatspeeds. Read yourtransducer owner'smanual forthe bestmounting position. 4.94K x 6.1OWx 2.71 "D 192 kHz 600 watts (p-p, typical) 75 watts (RMS, typical) Film Supertwist LCD 240 verticalx 240 horizontal 57,600total pixels NOTICEl The storage temperature for your unit is from -4 degreesto +167 degrees Fahrenheit (-20 degreesto +75 degrees Celsius). Extended storageintemperatures higheror lowerthanspecified will damagethe liquid crystal displayin your unit. Thistype of damage is not covered by thewarranty. For more information, contact the factory'sCustomer Service Department or your local servicecenter. INSTALLATION MOUNTING Install the LCG-2400 in any convenient location, provided there is clearancebehind the unitwhen it istiltedforthe bestviewing angle. Rolesinthe bracket base allowwoodscrewor through-bolt mounting. You may need to placea pieceof plywood onthebackofthinfiberglasspanelsto secure the mounting hardware. Make certain thereisenough room behind theunit to attachthepowerand transducer cables. The LCG-2400's gimbal bracket will also accept the GBSA-1 swivel bracket adapterthat lets you rotate the unita full 360°. to The smallestholethat allows one power ortransducerconnector pass throughis 3/4". Afterthehole is drilled, push thetransducer connectorup through the holefirst,then dropthe powercabledownthrough it. 1 PDF compression, OCR, web-optimization with CVISION's PdfCompressor 28 Afterthe cables have been routed, filltheholewith agood marine sealing compound. Offset the bracket to cover the hole. Route the power cable through the slot. Break out one of the holes in the back of the bracket for thetransducer cable. 3. The watermaybedeeperthan the sonar'sabilityto findthe bottom, If thesonar can'tfindthebottom signal whileit's in theautomatic mode, thedigital will flashcontinuously. It maychange therange to limits far greaterthan thewateryouare in. Ifthis happens, placethe unitin the manual mode, then change the range to a realistic one, (for example, 0-100 feet) and increase the sensitivity. As you move into shallower water, a bottom signal should appear. 4. Checkthe batteryv ...