Furuno MODEL CSH-73 User Manual

COLOR SCANNING SONARMODELCSH-73

1-2Main PanelRECALLMEMOHISTE/SNORM-+F3F2F1ONOFF+-GAIN+-RANGETILTWIDTHAUTOTILTWIDTHAUTOTRAINEVENT1NETCOURSEFISHESTI-MATE1EVENT2TARGETLOCKOFF-CENTESTI-M

This page is intentionally left blank.

IN-1INDEXAAGC... 3-32AGC... 3-

IN-2

1-3Control FunctionNORM, E/S, HIST(Mode keys)Select display mode: NORM, normal sonar picture; E/S, Echosoundercombination; HIST, Historical display.L

1-4Sub Panel 1RECALLMEMOHISTE/SNORMF4F5F3F2F1ONOFFPOWERTRANSDUCERCARDREPLAYCOLORNETREPLAYTXHELPENDMENUMEMORY CARDDRIVECARD EJECTBUTTONFigure 1-3 Sub p

1-5Sub Panel 2 (data setting window)SIGNALDELETE MKTVG•TXESSONR•BEAMAUTOALM•AUDIONEAR7MEDIUM8FAR9CYCLE7PL8OUTPUT9TVG TX+ + + + + +– – – – – –hgOPERP-

1-6MainItemItemSettingRangeDescriptionNormalSettingMain SubSIGNALSIGNALPROCESSNL 0–10 Rejects unwanted echoes. 3AGC 0–10Automatically reduces receiver

1-7niaMmetImetIgnitteSegnaRnoitpircseDlamroNgnitteSniaMbuSMAEB•RNOSRANOSRANOS2–1ro,ranoselgnisrof"1"esoohC.ranoslaudrof"2"1TFIHS-

1-8Remote Control Box123DISP SELECTDATAdcdEVENTTGT LOCKESTIMATE1NET COURSEFISHOFF-CENTTX1234FUNCTION5–+RANGE+–GAINSHOOTMEMORECALLAUTOAUTOVERT SCANTILT

2-1OPERATIONAL OVERVIEWTurning the Power On/OffTurning the power onPress the ON key on the main panel. The lamp above the keyshould light. If it does

2-2Selecting a Display ModeThe CSH-73 provides three display modes: normal sonar pic-ture, echo sounder (E/S) combination, and history display com-bin

2-3Selecting a Display RangeOperate the RANGE control to select a display range. The rangeselected appears at the top center of the screen.Setting th

Your Local Agent/DealerYour Local Agent/Dealer9-52 Ashihara-cho,9-52 Ashihara-cho,Nishinomiya, JapanNishinomiya, JapanTelephone :Telephone : 0798-65-2

2-4Adjusting the GainThe GAIN control adjusts receiver sensitivity (gain). Adjust itso fish echoes are clearly displayed with minimal noise on thescre

3-1FINE TUNING THE PICTUREThis chapter provides the information necessary for tuning thesonar picture. All operations are performed on sub panel 2 (da

3-2100 mNearFarMed400 m25 mFigure 3-2 Principle of TVGThe TVG is also used to suppress unwanted echoes and noisewhich appear in a certain range area o

3-3Suppressing Seabed TailAGC (data setting window: SIGNAL, SIGNALPROCESS)The AGC functions to automatically reduce the receiver gainonly against stro

3-4Suppressing Seabed and Sea Surface Reflections inShallow WatersData setting window: TVG•TX, OUTPUTIn shallow fishing grounds with hard or rocky bot

3-5Interference from other sonarCruising (propeller) noise of own shipCruising noise from other boatFigure 3-4 Forms of interferenceIdentifying noise

3-6Inter-ferenceFigure 3-5 How CYCLE worksNote: When the sonar is used in shallow water with the rangeset between 60 m and 200 m and Tx cycle at “9”,

3-7Adjusting BeamwidthBeamwidth can be adjusted at SONR•BEAM, BEAM on thedata setting window.Table 3-1 Beamwidth adjustment menusMenu ApplicationHORSe

This page is intentionally left blank.

4-1MARKS AND DATAMarks, Data and Display ModeNormal display modeFigure 4-1 Marks and data appearing in the normal displaymode

iiiiiiiiiiiiiiSAFETY INSTRUCTIONSCAUTIONUse the proper fuse.Use of a wrong fuse can result in fire orpermanent equipment damage.Do not use the equipme

4-2Figure 4-2 Marks and data appearing in the normal displaymode w/textFigure 4-3 Marks and data appearing in the echo sounderconbination display mode

4-3Figure 4-4 Marks and data appearing in the history displaymodePermanently Displayed Marks and DataRange DataRShows the range scale set with the RAN

4-4Mark/Data DescriptionShows own ship's present position. The direction of the arrow sh

4-5Range RingsThe range rings are inscribed at intervals of 1/4 of the range in use.Range ring data is also provided every two range rings. The range

4-6Ship's Track Mark*With gyrocompass or speed log connection, own ship's track is plotted by a solid line. The track length to display can

4-7Mark DescriptionTarget Lock Mark* The target lock mark automatically tracks the fish

This page is intentionally left blank.

5-1USER MENU OVERVIEWMany functions are carried out through the menu system, whichconsists of the USER, SYSTEM, DATA SET and INITIAL SET/DATA menus.

5-22. Operate the arrow keys in sub panel 1 to select a menu. Asyou move through the menu, each item, initially shown asblue on gray, reverses to gray

5-3USER Menu DescriptionTable 5-1 User menu descriptionMenu Menu Item DescriptionCARDUTILITYList Lists contents of memory card.Save Saves control and

iiTABLE OF CONTENTSFOREWORDA Word to CSH-73 Owners ...

5-4uneMmetIuneMnoitpircseDCEVTNERRUCceVtnerruC/wceVtnerruC/wceVtnerruC/wriDwolFtnerruCriDwolFtnerruC.ffo/noskramesohtsnruT."morF"ro"oT&

6-1FUNCTION KEYSSimilar to the quick dialing function on a telephone, the fivefunction keys (F1–F3) on the main panel record control and menusettings

6-2FUNCTION KEYREGISTER1USER MENUCustomized settings are registered to FUNCTION keys.Select key number with↑ ↓ key and press MENU key.Press END key t

6-3Function Key Fine Tuning Fine Adjustment Item -4 -3 -2 -1 0 1 2 3 4 5 TVG Near -3 -2 -1 0 0 1 1 2 3 4 TVG Mid -3 -2 -1 0 0

This page is intentionally left blank.

7-1ADVANCED LEVEL OPERATIONFinding Fish School CenterWhen you want to find the center depth of a fish school, use theauto tilt function, which automa

7-2Tracking a Fish School (target lock)Target lock, which requires speed and heading inputs, automati-cally tracks an important fish school so that yo

7-3Target lock mark appearanceThe size and thickness of the target lock mark indicates fish speedand tracking status, as shown below.MeaningTarget lo

7-44. Select Tracking Method, and then press the [MENU] key.5. Select method desired.6. Press the [END] key several times to close the menu.Tracking

7-5Setting target lock conditions1. Open the sub panel 1.2. Press the [MENU] key while pressing and holding down thedown arrow key in sub panel 1.3.

iiiFUNCTION KEYSProgramming the Function Keys ...6-1Replaying

7-6Description of target lock itemsTrackingMethodSets target lock function: target lock mark, fish or automatic.Track Echo ColorSets minimum echo sign

7-7Detecting Fish Schools AurallySometimes you may be preoccupied with other tasks and unableto concentrate on watching the sonar picture. In such ca

7-8The Fish AlarmThe fish alarm sounds an audible alarm when a fish echo abovea preset strength enters an alarm zone. You set parameters forthe fish a

7-9Relocating Fish School for Easy Observation1. Operate the trackball to place the trackball mark on the posi-tion where you want to relocate the ow

7-10Comparing of Fish School ConcentrationYou can get an estimate of the volume of two fish schools byusing the two ESTIMATE keys.1. Operate the track

7-11Measuring Fish School SpeedTo ensure a good haul, it is important to estimate the directionand speed of the fish school before shooting the net.

7-12Note 3: Each time the FISH key is pressed the latest fish markand ship’s speed mark change in the sequence shown below:Fish key pressed once:Fish

7-13Entering an event mark1. Set the trackball mark where you want to place an event mark(latest event mark).2. Press an EVENT key. The horizontal ra

7-14True Motion DisplayThe relative motion display places the own ship mark at the screencenter, and echoes from fish and the seabed move on the scree

7-15Plotting Net Location MarkBefore shooting net, you will decide the shoot timing consider-ing the water current direction, distance to fish school

ivSELF TESTSOpening the Self Test Menu ...11-1Self Test

7-16Setting Distances Between Net Sonde TransmittersTo accurately display the net shooting mark and net sonde markposition, the distance between trans

7-17Observing Net BehaviorWith net sonde connection you can observe net behavior afterthe throwing of the net, on the echo sounder combination mode.A

7-18Port/Starboard, Horizontal Slice DisplaysThe port/starboard display or horizontal slice display may bedisplayed by pressing the [HIST] key. The di

7-19Horizontal slice display120 degrees of the picture in the horizontal direction is shownfor a given depth (D) in the horizontal slice window at th

7-20Turning Marks, Data On/OffYou can turn marks and data on or off through the data settingwindow or the USER menu.Turning marks on/off through the d

8-1SAVING, REPLAYING PICTUREYou can save either the whole screen or the echo inside the esti-mate mark to the internal memory or a memory card.evaSot

8-2Saving the Picture1. Press the MENU key to display the USER menu.2. Select SAVE PICTURE.3. Select item to save:Whole: Saves whole picture to memory

8-3Saving Net Shooting DataHow net shooting data is savedThe unit starts accumulating net shooting data when the SHOOTkey is pressed. When net shooti

8-4Replaying Saved DataWhole picture or echo inside estimate mark1. Press the RECALL key (on the main panel).2. Press the right or left arrow key in s

9-1INTERPRETING THE DISPLAYSeabed EchoesWhen the tilt angle is set at 90 degrees with the sector centerfaced dead ahead, the pictures illustrated belo

vFOREWORDA Word to CSH-73 OwnersCongratulations on your choice of the FURUNO CSH-73 Color Scanning Sonar. We areconfident you will see why the FURUNO

9-2Fish SchoolsA fish school appears as a mass of echoes on the screen. Thecolor of the mass shows the density of the fishes and the size ofthe mass h

9-3Sea Surface ReflectionsAs ultrasonic pulses at both edges of the 180˚ sector beam arealways emitted horizontally along the sea surface regardless o

9-4False Echo by SidelobeAn ultrasonic wave is emitted only in the direction set by theTILT lever, however there are some emissions outside the mainbe

10-1WARNINGSOvervoltage WarningIf the input voltage to this unit rises above 125 VAC, the over-voltage detection circuit activates, an alarm sounds a

10-2BreakerPower Supply UnitF Photo No.1580Hull UnitMainShaftHand CrankFigure 10-1 How to manually raise the transducer

11-1SELF TESTSThe CSH-73 has various self tests to check it for proper opera-tion. If a test reveals equipment malfunction do not attempt tocheck ins

11-2Self Test DescriptionSingle testThe ROM, RAM and other devices of the dis-play unit are checked once. Control is returnedto the SELF TEST menu whe

11-3Panel testThis test checks the keys of the main and sub panels and theremote control box. Press and release each key. Its on-screenlocation shoul

11-4Gray testThis test checks for screen distortion. To escape from the testreset the power.GRAY TESTFigure 11-6 Gray testSIO testThis test checks for

11-5Interface Unit CS-120A Self Test1. Open the cover of the interface unit.2. Find DIP switch DP-1 on the lone circuit board. Turn switch#6 on to st

viSystem ConfigurationSTANDARD OPTIONREMOTE CONTROL BOXCSH-116DISPLAY UNITCSH-731REMOTE DISPLAYCSH-106SUB DISPLAYCSH-736STEP-DOWNTRANSFORMERPT-400INT

This page is intentionally left blank.

12-1MAINTENANCEDo not work inside theequipment unless totallyfamiliar with electrical circuits.Hazardous voltage which willcause death or serious inj

12-2Hull Unit MaintenanceHULL UNITApply MOLYTONE grease#2 every six months.Dry dock ship and cleantransducer face yearly.Apply single coat of "MA

13-1SPECIAL MENU DESCRIPTIONSYSTEM Menu DescriptionThe SYSTEM menu can be displayed by pressing MENU andc together. For help, press the HELP key.uneM

13-2uneMmetInoitpircseDKCOLTEGRATetadpUdpShsiF.tuodaerdeepshsiffolavretnietadpustceleS,sdnoces03,sdnoces51morftcelesnacuoY.sdnoces06ro,sdnoces54wodniW

13-3uneMmetInoitpircseDCERTEN/SEevruCroloC1SErolocnoitatneserpsusrevlevelohcestceleS.1rednuosohcerofevrucsasuoucipsnocsatoneraseohcekaeW:raeniLgnitan

13-4DATA SET Menu DescriptionThe DATA SET menu can be display by pressing MENU andd together. For help, press the HELP key.uneMmetInoitpircseDEVRUCROL

13-5uneMmetInoitpircseDROLOCEGNAHC1ranoS2ranoSrednuoSohcEskraMuneMsmetiesehtforolocehtezimotsucnacuoYranoStahtetoN.cte,tseuqerresuotgnidroccanoegnahc

13-6uneMmetInoitpircseDTOOHSTENNALPretemaiDteNyrassecenretemaidnruts'pihsdetamitsesteSfonoitcipedetaruccategot,tengnitoohsrofybyalpsidnacuoyhcihw

13-7INIT SET/TEST Menu DescriptionThe DATA SET menu can be display by turning on the powerwhile pressing MENU key.The HELP key provides menu operatin

1-1CONTROL DESCRIPTIONControl Layout on Display Unit and RemoteControl BoxRECALLMEMOHISTE/SNORM-+F3F2F1ONOFF+-GAIN+-RANGETILTWIDTHAUTOTILTWIDTHAUTOTR

13-8uneMmetInoitpircseDTSETOHCEtseTyalpsiDfonoitcennoctuohtiwtinuyalpsidehtskcehC.deyalpsidsinrettaptsetA.stinurehtonoitartsnomeD.esuerutufrofdevreseR

A-1MENU TREEUSER MenuEvent Mark 1Event Mark 2Fish MarkOn Track DataText WindowES WindowRange/BearingHeading MarkRange RingsBearing ScaleAuto Scan Wid

A-2DATA SET MenuSetting range: 200-1000 mON OFFSetting range: 0-3000 mSetting range: 0-1000 mExecuteExecuteExecuteExecuteExecuteExecuteExecuteCH

A-3INIT SET/TEST MenuSetting range: 0°-359°INIT SET/TEST MENU HEADING ADJHeading AdjustNMEA 4800, 9600 bpsNegative Positive Negative Positive

A-4SYSTEM Menu25log 30log 35log 40logFAR TVGFar TVG CurveSYSTEMMENUSetting range: 0 to 3SIGNAL PROCESSSmooth Echo - - - RngSmooth Echo - - - CirDelete

A-5ExecuteDEFAULTSDefaultsHIST DISPLAYPRT/STBD SampleNet Shoot MarkTarget LockON OFFON OFFON OFFON OFFON OFFON OFFINTERLOCKTiltRang

This page is intentionally left blank.

SP-1SPECIFICATIONSModel: CSH-73-M 150 (Freq.: 150 kHz)180 (Freq.: 180 kHz)1. GENERAL(1) Range, TX Cycle, PulselengthcisaBegnaR)m(egnaRelcyCXT)ces(htgn

SP-2 (3) Transceiver Transmitter: High power MOS FET amplifier with 10-step power reduction switch Receiver: Low noise superheterodyne, continuously s

SP-3*Own ship’s position (latitude/longitude)Net sonde data (net depth, distance to seabed, water temperature,sinking speed of net)(6) Features Custo