Furuno COLOR SCANNING CSH-23F/24F Operator's Manual
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Furuno COLOR SCANNING CSH-23F/24F Operator's Manual

Furuno COLOR SCANNING CSH-23F/24F Operator's Manual

Color scanning sonar
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COLOR SCANNING SONAR
CSH-23F/24F
MODEL

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Summary of Contents for Furuno COLOR SCANNING CSH-23F/24F

  • Page 1 Back COLOR SCANNING SONAR CSH-23F/24F MODEL...
  • Page 2 9-52 Ashihara-cho, 9-52 Ashihara-cho, Nishinomiya 662-8580, JAPAN Nishinomiya 662-8580, JAPAN Telephone : Telephone : 0798-65-2111 0798-65-2111 0798-65-4200 0798-65-4200 Printed in Japan Printed in Japan All rights reserved. All rights reserved. Pub. No. OME-13050 Pub. No. OME-13050 ( ( DAMI DAMI ) ) CSH-23F/24F CSH-23F/24F The paper used in this manual is elemental chlorine free.
  • Page 3 Continued use of the equipment can cause fire or electrical shock. Contact a FURUNO agent for service. Do not disassemble or modify the equipment. Fire, electrical shock or serious injury can result.
  • Page 4 WARNING LABEL Warning labels are attached to the equipments. Do not remove the lables. If the labels are missing or damages, contact a FURUNO agent or dealer about replacement. WARNING To avoid electrical shock, do not remove cover.

  • Page 5: Table Of Contents

    Eliminating Unwanted Feeble Echoes ... 3-1 Suppressing Seabed Tail... 3-3 Suppressing Seabed and Sea Surface Reflections in Shallow Waters... 3-4 Rejecting Sonar Interference and Noise... 3-4 Adjusting Beamwidth ... 3-6 MARKS AND DATA Marks, Data and Display Mode ... 4-1 Permanently Displayed Marks and Data...
  • Page 6 FUNCTION KEYS Programming the Function Keys ...6-1 Replaying a Function Key...6-2 Function Key Fine Tuning ...6-2 Saving Function Key Settings to a Memory Card ...6-3 Replaying Function Key Settings from a Memory Card...6-3 ADVANCED LEVEL OPERATION Finding Fish School Center...7-1 Tracking a Fish School (target lock)...7-2 Detecting Fish Schools Aurally ...7-7 The Fish Alarm...7-8...
  • Page 7 WARNINGS Overvoltage Warning...13-1 Unretracted Transducer Warning...13-1 SELF TESTS Opening the Self Test Menu ...14-1 Self Test Description...14-2 Interface Unit CS-120A Self Test...14-5 INPUT DATA SELECTION Selection of Data at Interface Unit CS-120A...15-1 Setting Distances Between Net Sonde Transmitters...15-2 MAINTENANCE Display Unit Maintenance...16-1 Hull Unit Maintenance...16-2 Replacement of Fuse, Memory Card Battery...16-3 MENU TREE...
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  • Page 9: Foreword

    A Word to CSH-23F/24F Owners Congratulations on your choice of the FURUNO CSH-23F/24F Color Scanning Sonar. We are confident you will see why the FURUNO name has become synonymous with quality and reliability. For over 50 years FURUNO Electric Company has enjoyed an enviable reputation for quality marine electronics equipment.

  • Page 10: System Configuration

    System Configuration STANDARD DISPLAY UNIT REMOTE CONTROL BOX CSH-230F (CSH-23F) CSH-116 CSH-2400F (CSH-24F) SHIP'S MAINS 100 VAC, 1 , 50/60 Hz TRANSMITTER UNIT CSH-310 POWER SUPPLY UNIT RECEIVER UNIT CSH-220A CSH-380B SHIP'S MAINS 100/110/220 VAC, 1 , 50/60 Hz viii OPTION MONITOR (MU-151C) PROCESSOR UNIT...

  • Page 11: Control Layout On Display Unit, Processor Unit And Remote Control Box

    CONTROL DESCRIPTION Control Layout on Display Unit, Processor Unit and Remote Control Box POWER NORM RANGE TARGET VERT SCAN SLICE SHOOT TARGET COURSE LOCK EVENT1 EVENT2 ESTI- ESTI- MATE1 MATE2 OFF- FISH CENT PUSH-OPEN SUB PANEL 2 Display unit Figure 1-1 Display unit, processor unit and remote control box TRANSDUCER SUB PANEL 1 Same as Sub-panel...

  • Page 12: Main Panel

    Main Panel ] - [ POWER TRANSDUCER NORM HIST RECALL RANGE GAIN VERT TARGET SCAN SLICE SHOOT TILT SCAN DEPTH TARGET COURSE LOCK CONT EVENT1 EVENT2 ESTI- ESTI- MATE1 MATE2 OFF- FISH CENT Figure 1-2 Main panel Main panel control description .
  • Page 13 Control NORM, E/S, HIST Select display mode: NORM, normal sonar picture; E/S, Echo sounder (Mode keys) combination; HIST, Historical display. Lamp above a key lights to show current selection. RECALL, MEMO RECALL: Replays saved picture. MEMO: Saves picture to memory card or internal memory.

  • Page 14: Sub Panel 1

    MENU Opens/closes the menu. • When the menu is displayed it terminates menu operation and returns control to the sonar picture. • When in a sub menu it returns control to previous sub menu. HELP Provides operating information for current menu.

  • Page 15: Sub Panel 2 (Data Setting Window)

    Sub Panel 2 (data setting window) ITEM (TVG TX selected) TVG TX SIGNAL DELETE MK SONR BEAM AUTO ALM AUDIO OPER P-SET (TOGGLE) Item selection keys Select item. OPER P-SET key Opens/closes data setting window. Note: The sub-panel 2 for the processor unit is arranged vertically. Item Main Item...
  • Page 16 *2AGC and HOR functions cannot be used together. If one is used the other is automatically set to “0”. (Continued on next page) – 0 – 0 i t a 4 – 3 – 4 – – 0 – 0 –...
  • Page 17 B • • *HOR and 2AGC functions cannot be used together. If one is used the other is automatically set to “0”. 2 – 2 " f " 2 – – 0 i t t 4 – – 0 9 – 1 "...

  • Page 18: Remote Control Box

    Remote Control Box elects which display unit to ontrol in multiple display unit stallation. ises/lowers the transducer. : Raises transducer. : Mid protrusion : Full protrusion Press to enter mark shown on key or shift screen center. Selects display range. Adjusts receiver sensitivity.

  • Page 19: Operational Overview

    OPERATIONAL OVERVIEW Turning the Power On/Off Adjusting Screen Brilliance, Control Panel Backlighting Lowering the Transducer Press d or switch. The lamp above the switch blinks during lowering of the trans- ducer and lights when the transducer is completely lowered. In normal use fully lower the transducer.

  • Page 20: Selecting A Display Mode

    Selecting a Display Mode Mode NORMAL HISTORY The CSH-23F/24F provides three display modes: normal sonar picture, echo sounder (E/S) combination, and history display combination. Those modes may be selected with the NORM, E/ S and HIST keys. Table 2-1 Display mode description The sonar picture appears over the entire screen.

  • Page 21: Selecting A Display Range

    Selecting a Display Range Setting the Tilt Angle Operate the RANGE control to select a display range. The range selected appears at the top center of the screen. The tilt angle shows the direction to which the sound wave is emitted.
  • Page 22 Case 2 Figure 2-1 Fish echo and tilt angle Points to consider • Normally, a vertically distributed fish school is a better sonar target than the seabed, because it reflects the transmitted pulse back toward the transducer. • In case 3, both fish schools a and b are presented. Gener-...
  • Page 23 Tilt angle for surface fish Sound emitted from the sonar transducer forms a circle-shaped beam with a width of approximately 12 degrees in the vertical direction (vertical beam width). The tilt angle is indicated by the angle between the center line of the beam and the horizontal plane.

  • Page 24: Suitable Tilt Angle

    (200) 20(40) 40(80) 60(120) 80(160) 100(200) 200(400) Vertical width of sonar beam 100 m 100 m 15° 26 m Suitable tilt angle The figure below illustrates the relationship among tilt angle, depth and detection range. Refer to it to find out the suitable tilt angle for a given depth/detection range.

  • Page 25: Adjusting The Gain

    Adjusting the Gain Measuring Range and Bearing to a Target The GAIN control adjusts receiver sensitivity (gain). Adjust it so fish echoes are clearly displayed with minimal noise on the screen. Too high a setting not only displays excess noise and makes it difficult to discriminate wanted echoes but also causes seabed echoes to be painted in strong colors, resulting in echoes being masked by seabed reflections.

  • Page 27: Fine Tuning The Picture

    The sonar operator will be quite inconvenienced if these echoes are directly displayed on the screen, since he can not judge the actual size of the target from the size of echoes dis- played on the screen.
  • Page 28 The 35 log or 40 log setting raises the gain on a long range and is suit- able for searching tuna, bonito, etc., which are usually searched with high gain setting.Ask for FURUNO dealer for detail.

  • Page 29: Seabed Echoes

    While it is ideal to suppress seabed echoes with the AGC con- trol alone there are some fishing grounds where this is not pos- sible. (The high power sonar has the advantage of long-range detection but this can also be a disadvantage, since weaker ech- oes may be hidden in strong, unwanted echoes such as the sea- bed.)

  • Page 30: Suppressing Seabed And Sea Surface Reflections In Shallow Waters

    Figure 3-2 How to suppress seabed and sea surface reflections in shallow waters While observing the sonar picture, you may encounter occasional or intermittent noise and interference. These are mostly caused by on-board electronic equipment, engine or propeller noise, or electrical noise from other sonars being operated nearby.
  • Page 31 CYCLE) When other sonars operate nearby at the same transmission in- terval as that of own ship’s sonar, an interference ring caused by other sonars is displayed. To erase the interference ring from the screen, reduce the CYCLE on the data setting window.

  • Page 32: Adjusting Beamwidth

    Adjusting Beamwidth Setting F-shift (data setting window: SONR•BEAM, SONAR) If interference cannot be suppressed by the interference rejector (IR) or Tx cycle, change the setting of F-SHFT from 1 to 2. Noise limiter (data setting window: SIGNAL, SIGNAL PROCESS) Weak, unwanted reflections, colored light-blue or green, appear when the water is dirty, plankton layers exists, or due to ship’s...

  • Page 33: Marks And Data

    MARKS AND DATA Marks, Data and Display Mode Normal display mode Figure 4-1 Marks and data appearing in the normal display mode...
  • Page 34 Normal display mode w/text Echo sounder combination display Figure 4-2 Marks and data appearing in the normal display mode w/text Figure 4-3 Marks and data appearing in the echo sounder combination display mode...

  • Page 35: Permanently Displayed Marks And Data

    Accordingly, both are equal when target lock is on. In automatic tilt, the upper indication shows the tilt angle set by the TILT lever and the lower indication the instantaneous tilt angle at which the sonar actually works. (Continued on next page)

  • Page 36: Erasable Marks And Data

    Mark/Data Own Ship’s Mark Shows own ship’s present position. The direction of the arrow shows ship’s heading. This mark moves with ship’s movement in the * true motion mode. On all other modes it is fixed at the screen center. When the CSH-23F/24F is connected to a gyrocompass the mark is * North Mark calledthe north mark and points North.
  • Page 37 Mark/Data Latest Fish Mark These marks are inscribed on the screen by pressing the FISH key. Ten fish marks can be entered. Each time the key is pressed the fish mark appearance changes on the screen as follows: Fish Mark 1st press of FISH key 2nd press of FISH key Fish Mark...
  • Page 38 Mark With gyrocompass or speed log connection, own ship’s track is plotted *Ship’s Track Mark by a solid line. When the length of the line exceeds five times the range the oldest part of the track is erased. This mark can be displayed with current indicator input. The tidal *Tidal current marks are displayed on the net shooting mark ( Current...
  • Page 39 Mark Target Lock Mark The target lock mark automatically tracks the fish school selected by the operator. This function requires speed and gyrocompass inputs. Net Shooting Mark Press the SHOOT key at the instant you shoot the net to display the net shooting mark on the display.
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  • Page 41: Menu Overview

    MENU OVERVIEW Menu USER SYSTEM DATA SET INIT SET/TEST USER Menu Operation Many functions are carried out through the menu system, which consists of the USER, SYSTEM, DATA SET and INITIAL SET/ DATA menus. The menu you will use most often is the USER menu.
  • Page 42 2. Operate the arrow keys in sub panel 1 to select a menu. As you move through the menu, each item, initially shown as blue on gray, reverses to gray on blue to show selection. For example, select the HIST DSP/GRPH menu. 3.

  • Page 43: User Menu Description

    USER Menu Description t s i i t i i r a s ' p (Continued on next page) Table 5-1 User menu description s t s o r t s e t i l a s t a r e t t e s d i t e r r...
  • Page 44 i t i : e l . f f i t c T " " o F " i t s i t c . "...

  • Page 45: System Menu Description

    SYSTEM Menu Description (Continued on next page) The SYSTEM menu can be displayed by pressing MENU and together. For help, press the HELP key. o i t o i t a t r : e t r a t i h t .
  • Page 46 i t s (Continued on next page) t t e . ) t i t a i t t T " . s r l l a . l l , ) l , ) e i t a i t a i t a i t a i t a...
  • Page 47 , t l s t l . s r S " e l i e t i t t e i t a t t e i l e i t a " r t s " r i t t "...

  • Page 48: Data Set Menu Description

    DATA SET Menu Description (Continued on next page) The DATA SET menu can be displayed by pressing MENU + . For help, press the HELP key. t t e t s r l e c . y e i t a t i e "...
  • Page 49 (Continued on next page) i t c t s r Before i l e . s r l e c . y e e t i . c t e t i Before Display Color . s r t t e i t t t e l .
  • Page 50 5-10 i t s i t a i t a t l i i t t . s r i t c , ) s . r e , t e i t c l i t . e l i t a .

  • Page 51: Init Set/Test Menu Description

    INIT SET/TEST Menu Description (Continued on next page) The INIT SET/TEST menu can be displayed by pressing MENU and ON together. , t r 3 " i t a i t a " r ( " ; ) s " . i t i .
  • Page 52 s t l 5-12 . s t r t s i t a . t i s l l t l i l i t i t c e t t . r e i t t . 0 . ;...

  • Page 53: Function Keys

    The function keys are useful for quickly setting up the so- nar for a specific purpose such as seabed detection. 1. Tune the sonar as desired. 2. Press the MENU key. 3. Select the FUNCTION KEY menu and press the MENU key.

  • Page 54: Replaying A Function Key

    Replaying a Function Key Function Key Fine Tuning FUNCTION KEY USER MENU Customized settings are registered to FUNCTION keys. Select key number with key and press MENU key. Press END key to return to sub menu. Figure 6-2 REGISTER menu 5.

  • Page 55: Saving Function Key Settings To A Memory Card

    Fine Adjustment Item TVG Near TVG Mid TVG Far Tx Cycle Tx Beamwidth Tx Power Saving Function Key Settings to a Memory Card Replaying Function Key Settings from a Memory Card Function Key Fine Tuning 1. Press the MENU key. 2.
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  • Page 57: Advanced Level Operation

    ADVANCED LEVEL OPERATION Finding Fish School Center When you want to find the center depth of a fish school, use the auto tilt function, which automatically scans the tilt angle within the selected width. There are two automatic scan range, WIDE and NARROW, which can be selected by the INIT SET/TEST menu.

  • Page 58: Tracking A Fish School (Target Lock)

    Tracking a Fish School (target lock) Target lock, which requires speed and heading inputs, automati- cally tracks an important fish school so that you wonít lose sight of it on the display screen. Two types of target lock are avail- able: Target Mark or Fish.
  • Page 59 Target lock mark appearance The size and thickness of the target lock mark indicates fish speed and tracking status, as shown below. Target lock mark appearance Mark size indicates Fast relative speed. Medium Slow Mark thickness shows (More than 5 tracking status.
  • Page 60 Tilt angle is automatically changed to keep the target lock mark location within the sonar beam. 3. To stop tracking, press the [TARGET LOCK] key again. Note 1: If the target goes out of the picture or the tilt angle is greater than 60 degrees the lamp above the [TARGET LOCK] key flashes to call your attention.
  • Page 61 Setting target lock conditions 1. Open the sub panel 1. 2. Press the [MENU] key while pressing and holding down the down arrow key in sub panel 1. 3. Select TARGET LOCK with the arrow keys. 4. Press the [MENU] key. SYSTEM MENU TARGET LOCK Select item with...
  • Page 62 Description of target lock items TrackingMethod Sets target lock function: target lock mark, fish or automatic. Track Echo Color Sets minimum echo signal level to track. A fish school whose signal level is above the level set here is tracked. Fish Speed Limit Sets fish speed at which target lock is cancelled.

  • Page 63: Detecting Fish Schools Aurally

    Detecting Fish Schools Aurally Sometimes you may be preoccupied with other tasks and unable to concentrate on watching the sonar picture. In such cases it would be a good choice to use the audio function. This function enables you to monitor echoes from fish schools and seabed through the built-in speaker.

  • Page 64: The Fish Alarm

    The Fish Alarm The fish alarm sounds an audible alarm when a fish echo above a preset strength enters an alarm zone. You set parameters for the fish alarm at ALM on the data setting window. ON/OFF: Turn alarm on or off. Level: Set echo strength level which will activate the alarm.

  • Page 65: Relocating Fish School For Easy Observation

    Relocating Fish School for Easy Observation Place trackball mark here, for example. 1. Operate the trackball to place the trackball mark on the posi- tion where you want to relocate the own ship mark. 2. Press the OFF-CENT key. 3. To move the own ship mark back to the screen center, press the OFF-CENT key again.

  • Page 66: Comparing Of Fish School Concentration

    Comparing of Fish School Concentration 7-10 You can get an estimate of the volume of two fish schools by using the two ESTIMATE keys. 1. Operate the trackball to place the trackball mark on a fish school, and then press the ESTIMATE 1 key. The estimate mark appears on the fish school.

  • Page 67: Measuring Fish School Speed

    Measuring Fish School Speed Latest fish mark To ensure a good haul, it is important to estimate the direction and speed of the fish school before shooting the net. You can do this with the FISH key. If the tidal current data is used together with fish speed data, you can determine the timing of the net shooting more efficiently.

  • Page 68: The Event Mark

    The Event Mark 7-12 Note 3: Each time the FISH key is pressed the latest fish mark and ship’s speed mark change in the sequence shown below: Fish key pressed once: Fish key pressed twice: Fish key pressed three times: Fish key pressed four times: The event mark is useful for finding the horizontal range, depth and bearing to a location some distance from current position.

  • Page 69: Entering An Event Mark

    Entering an event mark 1. Set the trackball mark where you want to place an event mark (latest event mark). 2. Press an EVENT key. The horizontal range, depth and bear- ing to the event mark appear at the bottom left corner of the screen.

  • Page 70: True Motion Display

    Open the data setting window and select SONR•BEAM. Set UP/ TM in the SONAR menu to TM. This function requires speed and heading inputs. Although the true motion mode is available for use in all modes, use in the combination mode is not recommended since the own ship mark may move into the combination picture area.

  • Page 71: Plotting Net Location Mark

    Plotting Net Location Mark Before shooting net, you will decide the shoot timing consider- ing the water current direction, distance to fish school and mov- ing direction of the fish school. Use the net location mark as a guide to decide the timing. This function requires speed and heading inputs.

  • Page 72: Observing Net Behavior

    Observing Net Behavior 7-16 With net sonde connection you can observe net behavior after the throwing of the net, on the echo sounder combination mode. Accurate depiction of net sonde position depends on proper set- ting of the distances between net sonde transmitters. You can set those distances on NET SONDE XMTR in the DATA SET menu.

  • Page 73: Target Slice Display

    Target Slice Display e f f Using automatic tilting, the target slice mode displays the echo inside the estimate mark at several different tilt angles (depth). To access the target slice display, press the TARGET SLICE key. The table and illustration below describe the target slice mode.
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  • Page 75: Vertical Scanning Display

    The fig- ure below illustrates the concept of the vertical scanning mode, in comparison with the normal sonar beam. The vertical scan- ning mode helps you keep fast moving fish such as bonito and tuna within the sonar beam.

  • Page 76: Application To Bonito And Tuna Fishing

    Figure 8-3 Indications of vertical scanning display Tracking of bonito and tuna presents a special challenge to the sonar operator: He must try to keep them within the sonar beam, a formidable task considering their high speed and penchant for leaping and diving.
  • Page 77 Figure 8-4 Tracking Approaching • The sonar lets you view fish school movement continuously, thus you can approach a school confident of a good catch. • While a flock of birds hovering over the sea surface is usu- ally a good indication of the presence of a fish school, the sonar can better verify fish school size.
  • Page 78 Catching While the sonar operator monitors the sonar for other fish schools, the crew can scatter bait and water to attract fish to the boat. Figure 8-6 Catching...

  • Page 79: Port/Starboard, Horizontal Slice Displays

    PORT/STARBOARD, HORIZONTAL SLICE The port/starboard display or horizontal slice display may be displayed by pressing the [HIST] key. The display shown de- pends on the setting of “HIST DSP/GRPH” in the USER menu. Port/Starboard display The port/starboard display takes echoes along the bearing (port, starboard) selected on the SYSTEM menu and displays them on the lower 1/3 of the screen.

  • Page 80: Horizontal Slice Display

    Range Mark Horizontal Slice Width Cross Cursor Own Ship Mark Horizontal slice display 120 degrees of the picture in the horizontal direction is shown for a given depth (D) in the horizontal slice window at the bot- tom of the display. The area to display may be selected with the [R/B] key.

  • Page 81: Memory Card Operations

    MEMORY CARD OPERATIONS Initializing Memory Cards Before you save information to a memory card it must be initial- ized (formatted). 1. Press the MENU key to display the USER menu. 2. Select the CARD UTILITY menu. 3. Select Initialize. It takes more than two minutes to initialize a memory card.

  • Page 82: Saving The Picture

    Saving the Picture Transferring Echo Data from Internal Memory to Memory Card 10-2 You can save either the whole screen or the echo inside the esti- mate mark to the internal memory or a memory card. , e r i t s 1.

  • Page 83: Saving Net Shooting Data

    Saving Net Shooting Data How net shooting data is saved The unit starts accumulating net shooting data when the SHOOT key is pressed. When net shooting is concluded by pressing the SHOOT key again, the echo inside the estimate mark and other net shooting data are saved to the internal memory.

  • Page 84: Replaying Saved Data

    Replaying Saved Data Deleting Memory Card Contents 10-4 Whole picture or echo inside estimate mark 1. Press the RECALL key (on the main panel). 2. Press the right or left arrow key in sub panel 1 to select item to replay. The left arrow key selects older data (for example, data in memory card);...

  • Page 85: Turning Marks, Data On/Off

    TURNING MARKS, DATA ON/OFF User Menu You can turn marks and data on or off through the data setting window or the USER menu. Turning marks on/off through the data setting window Select DELETE MK to delete the following marks: Event Mark 1 Event Mark 2 Each press of + or –...
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  • Page 87: Interpreting The Display

    INTERPRETING THE DISPLAY Seabed Echoes (A) Flat seabed Tilt angle: 10 to 15 (B) Flat seabed Tilt angle: 20 or more (C) Sloping seabed Tilt angle: 20 or more When the tilt angle is widened, the seabed echo illustrated be- low will appear on the display.

  • Page 88: Fish Schools

    12-2 A fish school appears as a mass of echoes on the screen. The color of the mass shows the density of fish schools on the sonar beam. To find distribution and center point of a fish school, try several different tilt angles.

  • Page 89: Sea Surface Reflections

    To reduce sea surface reflections, set the tilt angle to 5 or higher, so the upper edge of the sonar beam does not hit the sea surface, or adjust TVG. When a narrow tilt angle is used, sea surface reflections cover a large area as illustrated below.

  • Page 90: False Echo By Sidelobe

    Figure 12-5 Sidelobe echoes Interference from a sonar on another ship appears on the screen as shown in (A) below. This interference can be suppressed by changing the CYCLE setting in TVG•TX on the data setting window. Interference from electrical equipment on board own ship appears as shown in (B) below.

  • Page 91: Overvoltage Warning

    WARNINGS Overvoltage Warning Unretracted Transducer Warning If the input voltage to this unit rises above 125 VAC, the over- voltage detection circuit activates, an alarm sounds and the mes- sage OVERVOLTAGE appears at the screen center. If this occurs, retract the transducer, turn the power off and check the ship’s mains voltage.
  • Page 92 Reset Button Breaker Main Shaft Raise/Lower Control Box Hand Crank Hull Unit Figure 13-1 How to manually raise the transducer 13-2...

  • Page 93: Self Tests

    SELF TESTS Opening the Self Test Menu The CSH-23F/24F has various self tests to check it for proper operation. If a test reveals equipment malfunction do not attempt to check inside the equipment. There are no user serviceable parts inside the equipment. WARNING Do not open the cover.

  • Page 94: Self Test Description

    Self Test Description Single test The ROM, RAM and other devices of the display unit are checked once. Control is returned to the SELF TEST menu when the test is completed. Continuous test The devices of the display unit are checked con- tinuously.
  • Page 95 Panel test This test checks the keys of the main and sub pan- els and the remote control box. Press and release each key. Its on-screen location should display “1” when the key is pressed and “0” when released. To escape from the test reset the power.
  • Page 96 Gray test This test checks for screen distortion. To escape from the test reset the power. SIO test This test checks for proper communication between the display unit and transmitter unit, and requires a jumper plug. To escape from the test reset the power. 14-4 GRAY TEST Figure 14-6 Gray test...

  • Page 97: Interface Unit Cs-120A Self Test

    Interface Unit CS-120A Self Test 1. Open the cover of the interface unit. 2. Find DIP switch DP-1 on the lone circuit board. Turn switch #6 on to start the self test. The results of the check appear on the digital display beside the DIP switch. 3.
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  • Page 99: Input Data Selection

    INPUT DATA SELECTION Selection of Data at Interface Unit CS-120A Ship's speed and bearing (for track plotting, true motion, target lock, etc.) Gyrocompass, Speed log GPS or DR (Note 1) Current Indicator DR or Current Indicator (Note 2) Note 1: GPS has priority. Switched automatically from GPS to DR when Standard GPS data is absent for more than 61 seconds or ship's speed measured with setting...

  • Page 100: Setting Distances Between Net Sonde Transmitters

    Setting Distances Between Net Sonde Transmitters 15-2 To accurately display the net shooting mark and net sonde mark position, the distance between transmitters must be correctly set. This is done on the DATA SET menu. Figure 15-2 How to measure distances between transmitters How to set net sonde transmitter distances 1.

  • Page 101: Maintenance

    MAINTENANCE Display Unit Maintenance Clean the screen and filter regularly. Cover the equipment when it is not in use. An anti-static spray may be used to clean the screen. Do not use chemical-based cleaners; they can remove paint and markings. Keep magnets and cassette tapes away from the display unit.

  • Page 102: Hull Unit Maintenance

    Hull Unit Maintenance CAUTION The zinc block near the transducer must be replaced yearly. The junction between the transducer and main shaft may corrode, which can result in loss of the transducer or water leakage inside the ship. 16-2 Apply MOLYTONE grease #2 every six months.

  • Page 103: Replacement Of Fuse, Memory Card Battery

    How to Replace Fuse Type Turn screw on fuse holder. Replace fuse. FGAO 10A If fuse blows again call AC125V for service. Contact a FURUNO FGMA 1A/2A/3A agent or dealer. AC125V Contact a FUNURO FGBO 2A, agent or dealer. AC125V...
  • Page 104 Memory card battery replacement 1. Slide the release leftward with your thumbnail. 2. Pull out the battery case, then remove the battery. 3. Insert new battery in case, plus (+) side up. 4. Insert the battery case. 5. Slide the release rightward to lock the battery case. 16-4 CAUTION Use only the specified battery.

  • Page 105: Menu Tree

    MENU TREE USER Menu USER MENU CARD UTILITY CARD ECHO DAT CARD NET DATA FUNCTION KEY DATA DISPLAY MARK DSP 1 MARK DSP 2 HIST DSP/GRPH CURRENT VEC SAVE PICTURE List Execute Save Execute Delete Execute Initialize Execute Execute Save Save Execute Register...

  • Page 106: Data Set Menu

    DATA SET Menu DATA SET MENU COLOR CURVE CHANGE COLOR NET SHOOT PLAN NET SONDE NET PLOT CORR Sonar 1 Execute Sonar 2 Execute Echo Sounder 1 Execute Echo Sounder 2 Execute Sonar 1 Execute Sonar 2 Execute Echo Sounder...

  • Page 107: Init Set/Test Menu

    INIT SET/TEST Menu INIT SET/TEST MENU HEADING ADJ BAUD RATE EXT KP UNIT/LANGUAGE SELF TEST ECHO TEST ES/NET REC DEFAULTS OTHERS Heading Adjust Setting range: 0°-359° I/F CS-120 2400, 4800 bps Aux Port 1 2400, 4800 bps Aux Port 2 2400, 4800 bps Aux Port 3 2400, 4800 bps...

  • Page 108: System Menu

    Normal Large Largest Course 32 Cmps 360 True Current Data Event Mark Other Marks Control Setting OFF Sonar TGT Lock Text Window Data 1 2 3 4 Trackball Mark +(S) +(L) Target Lock Mark Event Mark 1 Event Mark 2...
  • Page 109 SYSTEM MENU HIST DISPLAY (Continued from previous page) INTERLOCK DEFAULTS H-Slice Width 1 2 3 4 PRT/STBD Sample Setting range: 0°-180° Tilt Range Event Mark Fish Mark Net Shoot Mark Target Lock Defaults Execute...
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  • Page 111: Specifications

    SPECIFICATIONS Model: CSH-23F/24F-M 1. GENERAL (1) Range, TX Cycle, Pulselength " r " F NOTE 1) Transmission cycle is selectable in 10 steps. 2) External keying pulse can be used as a trigger. 3) Maximum range scale does not mean maximum range. Detection capability depends on nature of fish school and sea condition.
  • Page 112 (5) Alphanumeric Data Sonar picture (range, tilt angle, gain), Trackball mark data (slant range, horizontal range, depth, bearing), Event mark data (horizontal range, depth, first event marked depth, bearing), Fish mark data (distance moved*,...

  • Page 113: Hull Unit

    Navigation data* (ship’s speed, heading, water depth, water temperature), Own ship’s position* (latitude/longitude), Net sonde data* (net depth, distance to seabed, water temperature, sinking speed of net) (6) Features Custom mode, interference rejector, afterglow, noise limiter, delete color, memory card (save and recall of picture, echo inside estimate mark and net shooting data), automatic tilt, automatic target tracking* (target lock), external KP sync, heading up, north up*, fish alarm, overvoltage warning, unretracted transducer warning, remote control...
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  • Page 115: Index

    Overvoltage Warning ... 13-1 Port/starboard Display ... 9-1 Pulselength ... 3-3 RANGE and Bearing ... 2-7 Range Ring ... 4-5 Rejecting Sonar Interference ... 3-4 Remote Control Box ... 1-8 Saving the Picture ... 10-2 Sea Surface Reflection ... 12-3 Seabed... 2-3, 12-1 Self Test ...
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Csh-23fCsh-24f

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