Furuno CH-37 manual

COLOR SECTOR SCANNING SONAR MODEL CH-37[...]

Your Local Agent/Dealer Your Local Agent/Dealer 9-52 Ashihara-cho, 9-52 Ashihara-cho, Nishinomi y a, Ja p an Nishinomi y a, Ja p an Tele p hone : Tele p hone : 0798-65-2111 0798-65-2111 Telefax : Telefax : 0798-65-4200 0798-65-4200 FIRST EDITION : FIRST EDITION : JUL. JUL. 1998 1998 Printed in Japan Printed in Japan A ll ri g hts reserved. A ll ri [...]

i i i i i i i i i i i i i i SAFETY INSTRUCTIONS WARNING ELECTRICAL SHOCK HAZARD Do not open the equipment. Only qualified personnel should work inside the equipment. Immediately turn off the power at the switchboard if water leaks into the equipment or something is dropped in the equipment. Continued use of the equipment can cause fire or electrica[...]

ii Name: Warning Label (1) Type: 86-003-1011-0 Code No.: 100-236-230 CAUTION WORKING WITH THE SONAR OIL Precautions • Keep oil away from eyes. Wear protective gloves when working with the oil. The oil can cause inflammation of the eyes. • Do not touch the oil. Wear protective gloves when working with the oil. The oil can cause inflammation of t[...]

iii T ABLE OF CONTENTS FOREWORD ................................................................................................................... v SYSTEM CONFIGURA TION ................................................................................... vi MENU TREE .................................................................................[...]

iv 3.9 Bottom/3D Menu Operation ......................................................................................... 3-8 3.10 Interpreting the Display .............................................................................................. 3-9 3.1 1 Vertical Fan Mode Indications ...........................................................[...]

v FOREWORD Congratulations on your choice of the FURUNO CH-37 Color Sector Scanning Sonar! We are confident that you will enjoy many years of trouble-free operation with this fine piece of equip- ment. For over 40 years FURUNO Electric Company has enjoyed an enviable reputation for quality and reliability throughout the world. This dedication to ex[...]

vi SYSTEM CONFIGURA TION DISPLAY UNIT CH-370 NOTE 1: Two sets of rectifiers are necessary for AC mains. NOTE 2: DC ship's mains only. For AC ship's mains, the power is supplied directly from the rectifier unit to the trans- ceiver unit. OPTIONAL SUPPL Y ST ANDARD SUPPL Y LOUDSPEAKER SC-05WR REMOTE CONTROL BOX CH-343 External Interface OP0[...]

vii MENU TREE [MENU] key SONAR BOTTOM/3D E/S TX RA TE TX PULSE LENGTH TX OUTPUT POWER TX EXT SYNC IR ST ABILIZER COLOR RES. COLOR TVG (LEVEL) TVG (TIME) BEAM WIDTH AUTO TRAIN SECTOR VERT . ECHO OVERLA Y 3D VIEW SCALE TIME SCALE RANGE SHIFT GAIN N.L. IR ADV ANCE SPEED RES. COLOR DUAL DUAL MODE NET MOUTH SHIFT NET MOUTH WIDTH NET MOUTH HEIGHT NET DEP[...]

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1-1 OPERA TIONAL OVER VIEW 1.1 Control Description Main panel PWR O TRANSDUCER FULL HALF EVENT ENTER 1 2 3 CUST OM MODE CH-37 R/B MODE TRAIN SECT OR TIL T RANGE + 0 2 46 8 10 GAIN Switches on and off the entire system. Selects displa y mode (from left-hand position): Nor mal Sonar Mode or Normal Sonar Mode + E/S Combination* Expanded Sonar Mode V e[...]

1-2 Sub panel 0 10 LEVEL 0 10 TIME 0 10 DIMMER 0 10 BRILL 0 10 NL 0 10 A UDIO TV G HUE E/S F AST SCAN TRACK V:H RANGE AU TO TRAIN DEGA USS BO TTOM MODE MENU MENU Sub-panel 1 Sub-panel 2 Function Description TV G LEVEL controls the receiver sensitivity to eliminate surf ace noise, which ma y mask shallow targets . TIME deter mines the TV G eff ectiv[...]

1-3 1.2 T urning the Power On/Off Power on Press the PWR switch on the main panel. The lamp above the switch lights to show that power is turned on. Power off Retract the transducer with the g key on the main panel. The lamp above the switch lights while the transducer is being raised and goes off when the transducer is fully raised. Then, press th[...]

1-4 1.5 Presentation Mode Five presentation modes are available with the MODE control: Normal sonar , Normal sonar + combination, Expanded sonar, V ertical fan mode or V ertical fan mode + combination and 3D display mode (front and slant perspective views). Mode Presentation Normal sonar mode Normal full circle picture appears on the entire screen.[...]

1-5 Mode Presentation V ertical fan mode A vertical section of underwater conditions (half-circle area) appears on the entire screen. 3D display (slant perspective view) Display contents are same as front perspective mode except the per- spective is different. This mode may be turned on in the SYSTEM menu. 3D display (front perspective view) The ve[...]

1-6 1.6 Background Color The background color is available in deep blue, blue or black, with the HUE key . 1.7 Degaussing the Screen The screen is automatically degaussed at the interval selected on the SYSTEM SETTING menu. However , when the picture or picture color appears to be distorted, manually degauss the screen with the DEGAUSS key .[...]

2-1 SONAR MODE 2.1 T ypical Operating Procedure PWR O TRANSDUCER FULL HALF EVENT ENTER 1 2 3 CUST OM MODE CH-37 R/B MODE TRAIN SECT OR TIL T GAIN RANGE - + 0 10 LEVEL 0 10 TIME 0 10 DIMMER 0 10 BRILL 0 10 NL 0 10 A UDIO TV G HUE E/S F AST SCAN TRACK V:H RANGE AU TO TRAIN DEGA USS BOTT OM MODE MENU MENU 0 2 46 8 10 T urn on the display unit. Low er [...]

2-2 2.2 Selecting Range The RANGE control selects the detection (display) range. Se- lect the range according to either the fish species being searched or the depth desired. Normally it is set so that the bottom is traced at the lower part of the screen (like an echo sounder). SEA SURFACE Range indicated on the screen. BOTTOM Figure 2-2 Range selec[...]

2-3 2.3 Selecting Sector , Sector Stepping Sector width Sector means the width of the transducer training. The SEC- T OR control selects the training (display) area among six posi- tions. In the full circle mode (360 ° ) the direction of training is clockwise only . T able 2-2 T ransducer training sector Mode Transducer Training Sector (display ar[...]

2-4 2.4 Setting the T ilt Angle The tilt angle shows the direction to which the sound wave is emitted. When the sound wave is emitted horizontally , the tilt angle is said to be 0 ° and when emitted vertically , 90 ° . T o set a tilt angle, operate the TIL T control. W atch the tilt angle indication at the top right corner of the screen. The tilt[...]

2-5 Case 1 Case 2 Case 3 Fish School a Bottom Case 1 Fish school a Bottom Case 2 Fish school a Fish school b Case 3 Fish school b Fish school b Figure 2-4 Fish echo and tilt angle Points to consider • Normally , a vertically distributed fish school is a better sonar target than the bottom, because it reflects the transmitted pulse back toward the[...]

2-6 However if the sea is not calm enough, they will become domi- nant and interfere with observation of wanted echoes. T o mini- mize these sea surface reflections and to search surface fish schools effectively , the tilt angle is usually set between 5 ° and 6 ° so the upper portion of the beam becomes almost parallel with the sea surface. When [...]

2-7 2.5 Adjusting Gain Most equipment malfunctioning claims result from improper setting of switches and controls. For example, fish, fish habitat or outcrop can not be readily detected by merely increasing the gain. Initially set the gain between 3 and 5 with the GAIN control. Then, fine tune depending on the fishing ground, fre- quency used, etc.[...]

2-8 Identifying noise source T o eliminate noise effectively , you should first identify the source as follows: • Operate all onboard equipment one by one while observing the picture. • Run the boat at various speeds to check if the noise is speed dependent. If neither of the above affects the picture, turn on “IR” in the SONAR menu or adju[...]

2-9 2.7 Detecting Fish Schools Aurally Occasionally you will be preoccupied with other tasks and un- able to concentrate on watching the sonar picture. In such cases it would be a good choice to use the audio function. This func- tion enables you to monitor echoes from fish schools and bot- tom through the external speaker (option), of which the vo[...]

2-10 2.8 R/B and Event Markers (trackball operation) The trackball functions to obtain the data (slant & horizontal range, depth and bearing) from own ship to the specified posi- tion on the screen and, combined with the R/B and EVENT keys, it switches the R/B and event markers on/off. With navi- gation data input, the event marker moves with s[...]

2-11 2.9 Selecting T raining Sector Quickly Normally the training sector is selected by the SECTOR con- trol. T o the training sector more quickly , however , use the FULL/ HALF key . This key allows switching between full circle and half circle training sector in a single key stroke. FULL CIRCLE HALF CIRCLE SECT OR key FULL/HALF Figure 2-9 How the[...]

2-12 0 10 DIMMER 0 10 BRILL HUE E/S F AST SCAN TRACK V:H RANGE AU TO TRAIN DEGA USS BO TTOM MODE MENU MENU MENU : SONAR BO TT OM/3D E/S TX RA TE : 10 TX PULSE LENGTH : LONG SHOR T TX OUTPUT PO WER : A B C(MAX) Figure 2-10 How to reduce bottom and surface reflections by reducing Tx output power 2.1 1 Suppressing Bottom T ail As described earlier , f[...]

2-13 In the CH-37, the TVG LEVEL and TIME controls compensate for propagation loss. The ef fective distance is up to 1000 m approximately . Without TV G function Proper TV G setting Noise caused by strong reflection of surf ace turbulence . Nearer target echoes appear in larger size . Reduce gain f or nearby areas, using TV G. Echoes of equal size [...]

2-14 2.13 Relocating Fish School for Easy Observation When a fish school is near the edge of the screen and inconve- nient for observation, use the “ ” expanded sonar mode and adjust the TRAIN control (off-center function) to relocate the fish school close to the screen center . Fish school Own ship Fish school Figure 2-12 How to relocate fish [...]

2-15 2.15 Sonar Menu Operation Operating procedure 1. Press the MENU key on the sub panel 2. 2. Select the SONAR menu with the arrow keys on the sub panel 2. MENU : SONAR BOTTOM/3D DUAL E/S TX RA TE : 10 TX PULSE LENGTH : LONG SHORT TX OUTPUT POWER : A B C(MAX) TX EXT SYNC : OFF ON IR : OFF ON ST ABILIZER : OFF ON COLOR : 16 8 RES. COLOR : LOG LINE[...]

2-16 TX EXT SYNC: If two or more echo sounders or sonars are operated simultaneously , mutual interference may result due to asynchronous keying pulse output. T o synchronize keying pulse turn TX EXT SYNC on. IR: Rejects interference. T urn off when no interference exists, otherwise weak echoes may be missed. ST ABILIZER: Select “ON” when the M[...]

2-17 T able 2-1 E/S menu description m e t In o i t p i r c s e D E G N A R . ) s r e t e m ( 0 2 3 r o 0 4 2 , 0 6 1 , 0 8 , 0 4 : e g n a r r e d n u o s o h c e s t c e l e S T F I H S. h t p e d g n i t t r a t s y a l p s i d r e t n E N I A G. n i a g s t s u j d A . L . N . 2 r o 1 o t t e s , y l l a m r o N . n e e r c s e l o h w e h t s [...]

2-18 2.18 Interpreting the Display This section provides the information necessary for interpret- ing the display . How the picture is painted The wide sounding beam is emitted from the soundome at a certain tilt angle (see hatched area in the figure below). The information (target echoes) obtained by this beam is displayed in 45 ° sector of the s[...]

2-19 Bottom echoes When the tilt angle is widened, the bottom echo illustrated be- low will appear on the display . When the tilt is narrowed, the bottom trace becomes wider and weaker . By observing the bottom condition on the display , the skipper can prevent net damage. (A) Flat bottom Tilt angle: 10 ° to 15 ° (B) Flat bottom Tilt angle: 20 °[...]

2-20 Fish schools 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 so- nar beam. T o find distribution and center point of a fish school, try several different tilt angles. (A) Sea surface fish T ilt angle: -5 ° to 10 ° (B) Midwater , bottom fish T ilt angle: 30 ° or more Fis[...]

2-21 Sea surface reflections T o 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 . 15 ° 15 ° Sea surface Sea surface T ilt angle indication Sea su[...]

2-22 False echo by sidelobe An ultrasonic wave is emitted only in the direction set by the TIL T control, however there are some emissions outside the main beam. These are called sidelobes. The energy of the sidelobe is fairly weak but when the water is comparatively shallow and the bottom is rocky and hard, strong signals are detected by the sidel[...]

2-23 Noise and interference When the fishing ground is crowded with many fishing boats, the sonar is subject to interference from ultrasonic equipment (echo sounder or sonar) on other boats as well as those on own ship. For instance, interference from the sonar operated on other boats will show itself on the display as in (A) in the figure be- low [...]

2-24 2.19 Sonar Mode Indications Normal sonar display Heading* Sector center marker Range T ilt Bearing scale Own ship marker Courseline (Requires navigator or current indicator) Bottom echo Fish school North marker* T rackball marker data T rackball marker C1: 0.9 C2: 0.8 C3: 0.5 2 3 1 Current data (Requires current indicator) Depth, latitude, lon[...]

2-25 Expanded sonar display Sector center marker Range T ilt Sector width marker Own ship marker T rackball marker T rackball marker data R 150 T 10 ° Figure 2-24 Indications on the expanded sonar display[...]

2-26 2.20 Application Example The figure below shows a typical sonar mode application. Sonar (Horizontal) Mode PURSE SEINING BOTTOM TRA WLING After blinking, remains lit. 1 Power ON. 2 Lower soundome. 1 Power ON. 2 Lower soundome. Select the proper range and tilt angle. 3 Observe bottom on the screen. Bottom TRANSDUCER MODE RANGE - + TRANSDUCER - +[...]

2-27 4 Narrow t he train a rea, and track fish school. 4 Narrow t he train a rea, and track fish school. 5 Change t ilt angle for strongest fish schoo l echo. 6 Monitor situation of both fish schoo l and net. Data for f ish school pointed by trackba ll marker (+). Fish school T rackba ll marker Scout-boat F ish school 5 Observe movement o f fish sc[...]

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3-1 VERTICAL F AN MODE 3.1 T ypical Operating Procedure PWR O TRANSDUCER FULL HALF EVENT ENTER 1 2 3 CUST OM MODE CH-37 R/B MODE TRAIN SECT OR TIL T GAIN RANGE - + 0 10 LEVEL 0 10 TIME 0 10 DIMMER 0 10 BRILL 0 10 NL 0 10 A UDIO TV G HUE E/S F AST SCAN TRACK V:H RANGE AU TO TRAIN DEGA USS BOTT OM MODE MENU MENU T urn on the display unit. Lower the t[...]

3-2 3.2 Selecting Range The RANGE control selects the detection (display) range. Se- lect the range according to either the fish species being searched or the depth desired. Normally it is set so that the bottom is traced at the lower part of the screen (like an echo sounder). Surface Bottom RANGE m Vertical range (V:H=1:1) 60 POR T R STBD 60 60 Ho[...]

3-3 3.3 Selecting Bearing for the V ertical Fan The TRAIN control determines the bearing of the vertical fan beam. T o which bearing the beam positions is known by the train indicator mark. Train Indicator Mark Training of Vertical Fan Beam Bow Bow TRAIN The training of the fan beam depends on the status of the AUTO TRAIN key in the sub panel 2. Tr[...]

3-4 3.4 Selecting the Display Sector Sector center, width The SECTOR and the TIL T controls determine the display area (sector width) and the display center (sector center) respec- tively . Mode Display Sector (transducer tilting sector) Vertical Fan Mode 36 ° 60 ° 96 ° 120 ° * 156 ° */180 ° * * Selected by FULL/HALF key. Displa y sector (Sha[...]

3-5 3.5 Automatic Shifting of Own Ship Position Own ship position on the screen is shifted automatically either rightward or leftward according to the direction of the sector center and the display sector width. The figure below shows the own ship position has been shifted rightward on the screen to provide the wider view at port side. Sector cente[...]

3-6 3.7 Horizontal, V ertical and Event Markers (trackball operation) The trackball functions to obtain the data (horizontal range and depth) from own ship to the specified position on the screen and, combined with the R/B and EVENT keys, switches the Horizontal, V ertical and Event markers on/off. Event marker* Horizontal and V er tical markers 1)[...]

3-7 Function Procedure/Purpose T rackball Data 1) Position the trackball marker on the desired location. 2) Read the trackball data displayed at the upper left corner of the screen. T rackball data T rackball marker Horizontal Range Depth 3.8 Applying Proper TVG The TVG function is the same as the one explained in the so- nar mode. For best results[...]

3-8 3.9 Bottom/3D Menu Operation Basic procedure 1. Press the MENU key on the sub panel 2. 2. Select BOTTOM/3D with the arrow keys in the sub panel 2. 3. Select item and setting with the arrow keys. The selected item is highlighted and the current setting is circumscribed in white. 4. T o return to the BOTTOM/3D menu, press the menu key again. MENU[...]

3-9 3D VIEW SCALE: Determines the depth item, time or distance for 3D display mode. (Requires optional equipment.) TIME SCALE or DIST ANCE SCALE: Selects z-axis scale of 3D picture. 3.10 Interpreting the Display This section provides the information necessary for interpret- ing the display . How the picture is painted The sounding beam is emitted a[...]

3-10 Port-starboard picture (bottom) Y ou can see fish echoes at the center-right of the CRT . The bottom is displayed wider as the distance from the ship’s posi- tion increases. Therefore, it may be dif ficult to discriminate bot- tom fish. Own ship Fish school Bottom POR T STBD Figure 3-1 1 Port-starboard picture When ship passes over fish scho[...]

3-11 Display of net hauling This is an example of net hauling display . The location of the net is indicated clearly . (Ship is stopped.) Own ship Backw ard FORE AFT Net Figure 3-13 Net hauling and sonar picture False echo In a shallow water (less than 100 m) detection, unwanted ech- oes shown in the figure may appear . This phenomenon is caused by[...]

3-12 3.1 1 V ertical Fan Mode Indications Heading T rain indicator H-Range V -Range H-Range scale Fish schools Bottom 2nd reflection V -Range scale V ertical/Horizontal marker data T rackball T rackball data Net mouth mark Figure 3-15 Indications in the vertical fan mode[...]

3-13 3.12 How to Use the V ertical Fan Mode [1] TRAWLER (Surface/Mid-water/Bottom) Usage Fish school detection Bottom shape discrimination Relation between fish school and fishing gear A uto train 1 T urn on the A UT O TRAIN ke y on the sub panel 2 and set the direction of the train center to the f ore-aft direction. Obser ve the fish school near t[...]

3-14 [2] PURSE SEINER Usage T rac king fish Obser vation of fish mo vement/bottom shape Confirmation of net forming 1 Approach the fish school while obser ving their distribution on the sonar mode. 3 Shoot the net, and then obser ve the location of the fish and the status of the net. 2 While approaching, f ace the sounding beam toward the fish scho[...]

4-1 3D MODE The 3D mode shows vertical echoes (real time echoes) and a frontal or oblique image of the bottom just passed, like a graphic track plotter . This mode is useful for locating a wreck, a shoal or a fishing reef. V ertical echoes can be turned on/of f through the BOTTOM/3D menu. 4.1 Selecting a 3D Display Either of two displays may be sel[...]

4-2 Oblique image The oblique image is the equivalent of the frontal image ro- tated by 45 ° counterclockwise. Own position Sectional view Figure 4-2 Oblique image 4.2 T urning V ertical Echoes On/Off V ertical echoes, namely , real time echoes, can be turned on or off on the VERT . ECHO OVERLA Y field of the BOTT OM/3D menu, which you can display[...]

4-3 4.3 Changing 3D V iew Scale Mode and Scale Selection The depth (z-axis) of the graph is displayed in either “TIMe” or “DIST ance” scale mode. The depth can be set to 500 or 1000 meters in the distance scale mode, or 1/1, 1/2 or 1/4 in the time scale mode. The fraction means graph update/number of trans- mission. “1/4,” for example, [...]

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5-1 CUST OM MODE KEYS ( ¡ ¡ ¡ ¡ ¡ , ™ ™ ™ ™ ™ , £ £ £ £ £ ) 5.1 About the Custom Mode Keys Like the redial feature on a telephone, the custom mode keys record control settings and play them back in a single key stroke. This feature is useful when you need to quickly set up the so- nar according to fishing ground or fish species [...]

5-2 5.3 Custom Mode Operation 1. Press desired custom mode key ¡ , ™ or £ . 2. T o escape from the custom mode settings, adjust any con- trols. [Example] FISHING GROUND MODE RANGE 200 m SECT OR 360 ° TRAIN 0 ° TIL T 30 ° MODE RANGE 100 m SECT OR 180 ° TRAIN 90 ° TIL T 90 ° MODE RANGE SECT OR TRAIN TIL T F old here Record settings on label[...]

6-1 MENU SETTINGS 6.1 System Setting Menu 1. T urn on the power while pressing the MENU key . Release the key when you hear a beep. The SYSTEM menu ap- pears. ** SYSTEM SETTING ** EXIT : PRESS MENU KEY 3D DISPLAY : OFF ON SHIP’S POSITION : OFF L/L LOP CURRENT DATA : OFF FLOW FROM FLOW TO DEPTH DATA : OFF ON HEADING INDICATION : OFF TRUE AZ NORTH [...]

6-2 T able 6-1 System setting menu description m e t In o i t p i r c s e D Y A L P S I D D 3. f f o / n o y a l p s i d D 3 s n r u T N O I T I S O P S ' P I H S e d u t i t a l ; t a m r o f n o i t i s o p s t c e l e s d n a f f o / n o n o i t a c i d n i n o i t i s o p s n r u T . P O L n a r o L r o e d u t i g n o l d n a A T A D T N [...]

6-3 ** SCREEN ADJUSTMENT ** H.SIZE H. POSITION V . SIZE V . POSITION DEFLECTION DIST . BRIGHTNESS EXIT : PRESS MENU KEY Effective picture marker (inside) Effective picture marker (outside) Figure 6-2 Screen adjustment screen 4. Select item with up and down arrow keys. 5. Adjust item with left and right arrow keys: H.SIZE: Sets picture size in horiz[...]

6-4 6.3 System Menu Press the MENU key while turning on the power . The SYSTEM menu appears. ** SYSTEM MENU ** SYSTEM SETTING RANGE - SONAR MODE RANGE - VERTICAL FAN MODE RANGE/SHIFT - E/S COLOR LANGUAGE DISPLAY TEST1 - ROM/RAM/KEY TRAIN/TILT TEST SCREEN ADJUSTMENT TEST PATTERN DISPLAY TEST2 - OPERATION DEFAULT EXIT: TURN OFF THE UNIT Figure 6-3 Sy[...]

6-5 3. Select range. 4. Set range. 5. T o return to the SYSTEM menu, press the MENU key . 6. T o quit, reset the power . Range - vertical fan mode 1. Select RANGE-VERTICAL F AN MODE from the SYSTEM menu. 2. Press the MENU key . ** RANGE - VERTICAL F AN MODE ** 1: 2 0 2: 4 0 3: 6 0 4: 8 0 5 : 100 6 : 120 7 : 160 8 : 200 9 : 240 10 : 280 1 1 : 320 12[...]

6-6 Range/shift - e/s 1. Select RANGE/SHIFT - E/S from the SYSTEM menu. 2. Press the MENU key . ** RANGE/SHIFT - E/S ** RANGE 1 : 40 2 : 80 3 : 160 4 : 240 5 : 320 SHIFT 1 : 20 2 : 20 3 : 40 4 : 80 5 : 80 F ACTORY SETTING : NO YES EXIT : PRESS MENU KEY Figure 6-6 Range/shift - e/s screen 3. Select range (shift). 4. Set range (shift). 5. T o return [...]

6-7 Color setting The color setting screen allows you to adjust display colors. 1. Select COLOR from the SYSTEM menu. 2. Press the MENU key . ** COLOR ** LEVEL : R G B 15 : 1 1 0 0 14 : 13 0 0 13 : 15 0 0 12 : 15 4 0 1 1 : 14 6 0 10 : 14 9 0 9 : 14 1 1 0 8 : 13 13 0 7 : 1 1 13 0 6: 0 1 3 0 5: 0 1 2 9 4: 0 1 1 1 1 3: 0 1 0 1 2 2 : 0 8 12 1 : 0 6 12 [...]

6-8 Factory setting menu (restoring default settings) 1. Select DEF AUL T from the SYSTEM menu. 2. Press the MENU key . EXIT : PRESS MENU KEY NOTE! ALL SETTINGS INCLUDED IN SYSTEM MENU WILL BE CHANGED TO FACTORY SETTING ** DEFAULT ** ARE YOU SURE? : NO YES Figure 6-8 Default screen 3. Select YES and press the MENU key to restore default set- tings.[...]

6-9 6.4 Dual Menu Press the [MENU] and choose DUAL to open DUAL menu. MENU : SONAR BOTTOM/3D DUAL E/S DUAL MODE : E/S BOTTOM SONAR NET MOUTH SHIFT : 1 NET MOUTH WIDTH : 100 NET MOUTH HEIGHT : 30 NET DEPTH : AUTO MANUAL OFF HOR SCAN RA TE : 1 VER SCAN P A TE : 1 EXIT : PRESS MENU KEY Description of DUAL menu DUAL MODE: Choose the display to show on [...]

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7-1 MAINTENANCE & TROUBLESHOOTING Good performance depends on regular maintenance. Follow- ing the recommended procedures in this chapter will keep the equipment operating in top condition for years to come. ELECTRICAL SHOCK HAZARD Do not open the equipment. Only qualified personnel should work inside the equipment. WARNING 7.1 Maintenance of D[...]

7-2 7.3 Maintenance of Hull Unit Lubrication Grease the raise/lower screw shaft once a year . Also, grease the raise/lower main shaft (upper part of the grease cotton re- tainer) twice a year . These parts can accessed by removing the raise/lower drive assembly cover . Manual raise/lower of transducer with hand crank Ship’ s mains should be suppl[...]

7-3 7.4 Display Unit T est This test checks the ROM, RAM and keyboard for proper op- eration. 1. T urn on the power while pressing and holding down the MENU key . Release the MENU key when you hear a beep. The SYSTEM menu appears as shown below . ** SYSTEM MENU ** SYSTEM SETTING RANGE - SONAR MODE RANGE - VERTICAL FAN MODE RANGE/SHIFT - E/S COLOR L[...]

7-4 ** DISPLAY TEST ** PROGRAM NO. 0650101-xxx MAIN PANEL ROM OK * * * SRAM OK 12 12 VRAM OK 0 255 SIO1 OK 12 0 SIO2 OK 0 0 0 TX FREQUENCY 60KHZ X: 0 Y: 0 ROLL 0 0 0 0 PITCH 0 0 REMOTE CONTROL 0 0 0 255 255 255 * 0 0 0 * * 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 EXIT 0 0 0 SUB PANEL EXIT : PRESS MENU KEY ROM Program version NO. is displayed, ROM RAM and[...]

7-5 7.5 T rain/Tilt T est This test checks the transducer training and tilting functions for proper operation. 1. T urn on the power while pressing and holding down the MENU key . 2. Select TRAIN/TIL T TEST with the arrow keys in the sub panel 2. 3. Press the MENU key to start the test. 4. T o return to the SYSTEM menu, press the MENU key again. 5.[...]

7-6 7.6 T est Pattern This test checks display position and colors. 1. Turn on the power while pressing and holding down the MENU key . 2. Select TEST P A TTERN with the arrow keys in the sub panel 2. 3. Press the MENU key to start the test. P osition chec k BLA CK BLUE GREEN RED Figure 7-5 T est pattern 4. T o return to the SYSTEM menu, press the [...]

7-7 T ransceiver unit error message If the power is not supplied to the transceiver unit, the following message appears on the screen and the buzzer sounds. TRANSCEIVER UNIT POWER OFF (CHECK FUSE ON TRANSCEIVER UNIT) PRESS R/B KEY T O SILENCE ALARM Figure 7-7 T ransceiver unit error message If this occurs, turn the power of f and check the fuse as [...]

7-8 T rain error message If something is wrong with the train control circuit, the following message appears and the unit stops operating. T urn the PWR switch off and contact your service agent at your earliest con- venience. TRAIN NG Figure 7-9 T rain error message Tilt error message If something is wrong with the tilt control circuit, the follow[...]

7-9 7.8 T roubleshooting T able The table below provides common symptoms of equipment troubles and the means to rectify them. If normal operation cannot be restored, do not check inside the system. Any repair work is best left to a qualified technician. Check Symptom No picture Power supply . Check ship’s mains voltage at the power plug connected[...]

7-10 Check Symptom Color par tially irregular Magnet is near the screen. This symptom occurs if equipment which contains a magnet (loudes- peaker , etc.) is placed near the screen. Check to see if the degaus- sing circuit is turned off on the SYS- TEM SETTING menu. See page 6- 2. Note: If not cleared, consult with electronics technician. Picture di[...]

AP-1 CUST OM MODE KEY LABELS (FRONT) (BACK) MODE RANGE SECTOR TRAIN TILT 200m 0 ° 225 ° 30 ° 200m 0 ° 360 ° 30 ° 100m 180 ° MODE RANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT FISHING GROUND MODE RANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT MODE RANGE SECTOR TRAIN TILT FISHING GROUND MODE RANGE SECTOR TRAIN TILT MODE RANGE SECT[...]

SP - 1 SPECIFIC ATIONS OF COLOR SECTOR SCANNING SONAR CH-37 1. GENERAL (1) Display System PPI display on high res olution 15 ” (381mm) color CRT (2) Picture Color 16 or 8 color depending on signal strength (3) Display Mode 1) Normal sonar mode display* 2) Expanded sonar mode display 3) Vertical fan mode display* 4) 3D mode display (front view) 5)[...]

SP - 2 (6) Horizontal Range 12 steps during 30 m to 1600 m (7) Vertical Range 12 steps during 10 m to 800 m (8) E/S Range* 5 steps during 10 m to 800 m (9) E/S Shift* 1000 m max. (10) Offcenter 4 point at Expand mode, according to the train setting 2 point at Slice mode, according to the tilt setting (11) TVG Level(100 dB max.), Range(1000 m max.) [...]

SP - 3 6. ENVIRO NMENTAL CO NDIT I O N (1) Ambient Tem perature 0 ° C to 50 ° C (2) Relative Hum idity 95% or less (at 40 ° C) 7. CORT ING CO LO R (1) Display Unit Chassis: 2.5GY5/1.5 Panel: N-3.0 (2) Hull Unit 2.5GY5/1.5 (3) Tr ansceiver Unit 2.5G7/2[...]

Index-1 INDEX ¡ , ™ , £ keys (custom mode keys) 5-1–5-2 3D mode 4-1–4-3 3D view scale (time, distance) 4-3 A AUDIO control 2-9 AUTO TRAIN key 3-3 Auto train sector (vertical fan mode) 3-8 B Background color 1-6 Beamwidth (vertical fan mode) 3-8 Bottom/3D menu 3-8 BRILL control 1-3 C Color adjustment 6-7 Color quantity 2-16 Custom mode key l[...]

Index-2 Range preset e/s mode 6-4 sonar mode 6-4 vertical fan mode 6-5 S Screen adjustment 6-2 SECTOR control sonar mode 2-3 vertical fan mode 3-4 Sonar menu 2-15 Speed warning 7-7 Sub panel description 1-2 System configuration vi System menu 6-4 System setting menu 6-1 T T est pattern 7-6 T ilt angle 2-4 TIL T control sonar mode 2-4, 2-14 vertical[...]