Furuno FCV-667 Operator's Manual

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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 electrical shock. Contact a FURUNO agent for service.

Do not disassemble or modify the equipment.

Fire, electrical shock or serious injury can result.

Do not place liquid-filled containers on the top of the equipment.

Fire or electrical shock can result if a liquid spills into the equipment.

Immediately turn off the power at the switchboard if the equipment is emitting smoke or fire.

Continued use of the equipment can cause fire or electrical shock. Contact a FURUNO agent for service.

Make sure no rain or water splash leaks into the equipment.

Fire or electrical shock can result if water leaks in the equipment.

WARNING

Keep heater away from equipment.

A heater can melt the equipment's power cord, which can cause fire or electrical shock.

Use the proper fuse.

Fuse rating is shown on the equipment.

Use of a wrong fuse can result in damage to the equipment.

CAUTION

A warning label is attached to the equipment. Do not remove the label. If the label is missing or illegible, contact a FURUNO agent or dealer.

WARNING

Name: Warning Label (1)

To avoid electrical shock, do not remove cover. No user-serviceable parts inside.

Type: 86-003-1011-0

Code No.: 100-236-230

i

TABLE OF CONTENTS

INTRODUCTION ................................................ iii

PRINCIPLE OF OPERATION.............................. v

SYSTEM CONFIGURATION .............................. vi

1. CONTROLS, INDICATIONS ........................ 1-1

1.1 Control Description ............................. 1-1

1.2 Indications .......................................... 1-2

2. BASIC OPERATION.................................... 2-1

2.1 Turning the Power On/Off ................... 2-1

2.2 Adjusting Brilliance.............................. 2-1

2.3 Display Mode Selection, Description ... 2-1

2.4 Adjusting Gain .................................... 2-6

2.5 Automatic Operation ........................... 2-6

2.6 Selecting Picture Advance Speed ....... 2-7

2.7 Display Range Selection ..................... 2-7

2.8 Erasing Weak Echoes......................... 2-8

2.9 Measuring Depth to a Fish School....... 2-9

2.10 A-scope Display.................................. 2-9

2.11 Menu Operation ................................ 2-10

2.12 Suppressing Interference .................. 2-13

2.13 Suppressing Low Level Noise ........... 2-13

2.14 Selecting Background and Echo Colors ............................... 2-14

2.15 Alarms .............................................. 2-14

2.16 White Marker .................................... 2-16

2.17 Demonstration Picture....................... 2-16

2.18 Correcting Speed/Water Temperature

Readout ............................................ 2-17

3. INTERPRETING THE DISPLAY................... 3-1

3.1 Zero Line ............................................ 3-1

3.2 Fish School Echoes ............................ 3-1

3.3 Bottom Echo ....................................... 3-1

3.4 Surface Noise/Aeration ....................... 3-2

4. MAINTENANCE, TROUBLESHOOTING ..... 4-1

4.1 Maintenance ....................................... 4-1

4.2 Basic Troubleshooting......................... 4-3

4.3 Diagnostics ......................................... 4-4

4.4 Transducer Check ............................... 4-5

4.5 Speed/Water Temperature

Sensor (option) Check......................... 4-5

4.6 Restoring Default Settings................... 4-5

MENU TREE ................................................... A-1

SPECIFICATIONS ......................................... SP-1

INDEX ii

INTRODUCTION

Congratulations on your choice of the FURUNO FCV-667 Color Video Sounder. We are confident that you will enjoy many years of operation with this fine piece of equipment.

For over 50 years FURUNO Electric Company has enjoyed an enviable reputation for quality and reliability throughout the world. This dedication to excellence is furthered by our extensive global network of agents and dealers.

The FCV-667 is just one of the many FURUNO developments in the field of echo sounding. The compact, lightweight but rugged unit is easy to install and operate and is suitable for both fresh and saltwater applications.

This unit is designed and constructed to withstand the rigors of the marine environment.

However, to obtain optimum performance from this unit, you should carefully read and follow the recommended procedures for operation and maintenance. No machine can perform to the utmost of its ability unless it is installed, operated and maintained properly.

We would appreciate feedback from you, the end-user, about whether we are achieving our purposes.

Thank you for considering and purchasing FURUNO equipment.

Features

The FCV-667 dual-frequency (50kHz and 200kHz) color video sounder has a large variety of functions, all contained in a splash-proof rugged plastic case that is compact to fit small boats.

The principal features of the FCV-667 are

•

User-friendly design for simplified operation.

•

A wide variety of display modes: bottom-lock expansion, marker zoom and unique bottom zoom displays.

•

Potent 300 W transceiver.

•

8-color presentation (including background) on a 6" diagonal CRT, providing vivid presentation of underwater conditions.

•

AUTO function permits unattended range and gain setting operations. The range scale and gain change automatically so that the bottom is displayed in reddish brown or red on the lower half of the screen.

•

A-scope display gives excellent bottom fish discrimination, vital for bottom trawler and lobster/crab potter.

•

Digital and analog displays of navigational data.

iii

•

Alarms: fish, bottom, water temperature (requires appropriate sensor).

•

Six pulselengths for excellent performance on both shallow and deep ranges.

•

Universal 12-24 VDC power supply drawing 30 W of power at maximum.

•

Water temperature/speed sensor optionally available.

iv

PRINCIPLE OF OPERATION

This Color Video Sounder determines the distance between its transducer and underwater objects such as fish, lake bottom or seabed and displays the results on a 6-inch color screen.

It does this by utilizing the fact that an ultrasonic wave transmitted through water travels at a nearly constant speed of 4800 feet (1500 meters) per second. When a sound wave strikes an underwater object such as fish or sea bottom, part of the sound wave is reflected back toward the source. Thus by calculating the time difference between the transmission of a sound wave and the reception of the reflected sound wave, the depth to the object can be determined. In a sense an echo sounder can be thought of as being an extremely sophisticated and quick timer, since it is capable of resolving time differences shorter than one thousandth of a second.

The entire process begins in the display unit. Transmitter power is sent to the transducer as a short pulse of electrical energy. The electrical signal produced by the transmitter is converted into an ultrasonic signal by the transducer and transmitted into the water. Any reflected signals from intervening objects (such as a fish school) are received by the transducer and converted back into an electrical signal. It is then amplified in the amplifier section, and finally, displayed on the screen.

The picture displayed by the color video sounder is made up of a series of vertical scan lines, one for each transmission. Each line represents a "snapshot" of what has occurred beneath the boat. The series of snapshots are accumulated side by side across the screen, and the resulting contours of the bottom and fish between the bottom and surface are displayed. The amount of history of objects that have passed beneath the boat over a series of transmission varies from less than a minute to a few minutes, depending on how you adjust the unit.

v

SYSTEM CONFIGURATION

DISPLAY UNIT

CV-667

TRANSDUCER

Standard supply

520-5PSC-A

Optional supply

520-5PWC

520-5MSC-A

520ST-PWA

524ST-MSA

Ship's mains

12-24 VDC

External equipment

(GPS navigator, etc.)

SPEED, TEMPERATURE SENSOR (option)

Speed/temperature sensor

ST-02MSB

ST-02PSB

ST-01PTB

Temperature sensor

T-02MTB

T-02MSB

T-03MSB vi

1.1

Control Description

The equipment is so designed that even a first time user can quickly become acquainted with the operating procedure. Operation of each control or key is acknowledged by an alphanumeric message or symbol indication on the screen.

Control

SHIFT-, SHIFT+

(Appears in text as [-], [+].)

BRILL

AUTO

ADVANCE (BRILL + AUTO)

SIG LEV

ALARM

A-SCOPE (SIG LEV + ALARM)

MARKER

▲

, MARKER

▼

(Appears in text as [

▲

] or [

▼

].)

RANGE

GAIN

MODE

Function

•

Change display start depth.

•

Select options on menus.

Adjusts brilliance of display.

Turns the automatic sounder adjustment feature on/off.

Pressing the BRILL and AUTO keys together selects display advancement speed.

Eliminates low intensity echoes (up to light-blue echoes) in two steps.

Opens/closes the alarm menu.

Pressing the SIG LEV and ALARM keys together displays the

A-scope display at the right 1/4 of the screen.

•

Shift the Variable Range Marker (VRM).

•

Set alarm zone.

•

Select menu items.

•

Set white marker.

Sets the basic range of the display.

Adjusts receiver sensitivity.

•

Turns unit on/off.

•

Selects display mode.

1-1

1.2

Indications

Water temperature*

Nav data*

Water temperature scale*

Water temperature marker* (Color changes with

HUE setting.)

Speed*

Noise Limiter

49.8˚F 12.5kt NL1

35

°

15.000' N

135

°

07.500' W

Picture Advance Speed

Signal Level

ç

1 SL1

0

F

Alarm Type

(F,B,TI,TB)

Active alarm

Minute marker

(yellow, blue,

30 sec. each)

70

60

20

Range scale

Alarm zone marker

50

40

39.8

40

Variable range marker (green) w/depth readout

Color bar

Demonstration Mode

Alarm Icon

Auto Setting

30

(DEMO)

AUTO-1

49.6

60

80

All indications and markers are displayed in white unless noted otherwise.

* Requires appropriate sensor.

Depth

1-2

2. BASIC OPERATION

2.1

Turning the Power On/Off

Turn the [MODE] switch clockwise to turn the power on. The unit starts with the settings used before it was turned off last time. Note that there is a few seconds delay prior to display of the picture until the CRT warms up. To turn the power off, turn the switch fully counterclockwise.

2.2

Adjusting Brilliance

Use the [BRILL] key to adjust the brilliance. The selected brilliance level is shown on the display as below. There are six levels of brilliance including off. Keep the brilliance moderate to extend the life of the CRT.

BRILL: 0

2.3

Display Mode Selection, Description

2.3.1

Display mode selection

Seven display modes are available and you may select one of them with the [MODE] switch.

MODE switch description

MODE Switch

Position

HF

LF

DUAL

HF ZOOM

LF ZOOM

NAV

MENU

Function

Provides the high frequency (200 kHz) normal picture on the full screen.

Displays the low frequency (50 kHz) normal picture on the full screen.

Displays the normal display for high frequency (200 kHz) on right half and that for the low frequency (50 kHz) on the left half.

Shows the normal display of the high frequency (200 kHz) on right half and its zoom display on the left half.

Provides the normal display of the low frequency (50 kHz) on right half and its zoom display on the left half.

Shows navigation data in analog or digital form (depending on menu setting) on the full screen.

Displays the main and system menus.

2-1

2.3.2 Display mode description

HF, LF (high frequency, low frequency) mode

The sounder uses ultrasonic pulses to detect bottom conditions. The lower the frequency of the pulse the wider the detection area. Therefore, the 50 kHz frequency is useful for general detection and judging bottom conditions, while the 200 kHz frequency is useful for detailed observation of fish schools.

0.0

0

Fish school

20

40

Bottom

60

49.6

80

DUAL frequency mode

This mode provides the 50 kHz picture on the left-half of the screen and the 200 kHz on the right half, and is useful for detecting fish schools which have different reflection characteristics with frequency. For example, a school of tiny fish like minnow returns stronger echoes on a high frequency compared to a low frequency.

0

0.0

50 kHz 200 kHz picture picture

20

0

20

40 40

60

49.6

80

2-2

ZOOM mode (high or low frequency)

Three types of zoom displays are available: bottom-lock expansion, bottom zoom and marker zoom. The zoom mode to be used can be selected on the main menu with ZOOM MODE.

Normal display

This section is zoomed

Zoom marker (yellow)

0

10

20

30

This display provides a compressed normal picture on the top 2/3 of the screen and a 5 or 10 meter (10 or 20 feet) wide layer in contact with the bottom is expanded onto the bottom 1/3 of the screen. This mode is useful for bottom discrimination. Note that the seabed should be steadily and distinctly plotted in red or reddish-brown. Adjust the gain if necessary.

Note 1: The bottom-lock range can be selected on the system menu [3].

Note 2: The zoom marker can be turned on/off on the system menu [1].

Bottomlock display

2 20.7

Fish

40

5

4

3

2

1

0

BOTTOM-LOCK

Bottom-zoom display

0

15

10

20

20

30

Zoom marker

(yellow)

36.4

25

40

Bottom

Normal display

BOTTOM ZOOM

0

15

Normal display

10

14.7

Fish school

20

20

Variable range marker (green)

This section is zoomed school

Zoomed fish

30

This mode expands bottom and bottom fish echoes two to five times to vertical size of the screen, and it is useful for determining bottom hardness. A bottom displayed with a short echo tail usually means it is a soft, sandy bottom. A long echo tail means a hard bottom.

The zone automatically moves so that the bottom echoes locate on the lower half of the screen.

Note 1: The amount of expansion can be selected on the system menu [3].

Note 2: The zoom marker can be turned on/off on the system menu [1].

This mode expands selected area of the normal picture to full vertical size of the screen on the left-half window. You may specify the portion to expand with the VRM (Variable

Range Marker), which you can shift with [

▲

] or [

▼

]. The area between the VRM and the zoom range marker is expanded. The length of the segment is equal to one division of the depth scale.

28.2

25

40

Marker-zoom display

Zoom marker

(yellow)

MARKER ZOOM

2-3

NAV mode

This mode shows navigation data digitally or graphically. The nav display to use can be selected on the system menu [1] with NAV.

Trip Distance*

Speedometer*

Depth

Waypoint*

Course*

Bearing to Waypoint*

50

40

30

20

10

0

DEPTH

TRIP NM

123.0

SPEED

10.6

KT

151 ft

( : 19 25)

TEMP

84.7˚F

WPT: FOX1 35˚23.19'N

122˚46.90'E

CSE: 120˚

BRG: 135˚

RNG

100.5NM

XTE

0.5 S

NM

1 0.5

0 0.5

1

0

20

40

60

Speed*

Alarm Range

Water Temperature*

Ship's Position*

Bearing to Waypoint relative to ship's course*

80


Cross-Track Error*

(Shows amount and direction to steer to return to course.

The example shows you should steer 0.5 nm starboard to return to course.)

Depth

151ft

20

Water Temperature*

84.7 ˚F

Speed*

Position*

40

10.6kt

60

35

°

23. 19'N

122

°

46. 90'E


80

0

2-4

Enlarging a nav data indication

You can enlarge and display one of the data indications as follows.

1. Press ] or [

▼

] to select the indication which you want to enlarge. For example, select the depth indication.

2. Press the [+] key to enlarge the data.

0

151 ft

20

40

60

80

3. To return to the full data display, press the [-] key.

2-5

2.4

Adjusting Gain

The [GAIN] control adjusts the sensitivity of the receiver. Adjust it so that a slight amount of noise remains on the screen. Generally, use a higher gain setting for greater depths and a lower setting for shallower waters.

Note: The [GAIN] control is inoperative when the automatic mode is active.

Gain too high Gain proper Gain too low

2.5

Automatic Operation

Automatic operation is useful when you are preoccupied with other tasks and do not have time to adjust the display.

2.5.1

How it works

The automatic function automatically selects the proper gain and range scale according to depth.

It works as follows:

• The range changes automatically to locate the bottom on the lower half of the screen. It jumps to one step shallower range when bottom echoes reach a halfway point of the full scale

•

• from top and to one step deeper range when they come to the lower edge of the scale.

The gain is automatically adjusted to display the bottom echo in reddish-brown (default color arrangement).

Clutter level (on the main menu), which suppresses low level noise, is automatically adjusted.

2.5.2

Enabling automatic operation

Two types of automatic modes are available: AUTO 1, for fishing, and AUTO 2, for cruising.

Since cruising uses a higher clutter rejection setting than fishing, it is not recommended for detection of fish because weak fish echoes may be deleted by clutter rejection. Note that the

[SHIFT] keys ([+], [-]), [RANGE] switch and [GAIN] control are inoperative in the auto mode.

Press the [AUTO] key. Each press of the key turns the auto function on or off in the sequence shown below.

AUTO-1 ON

(FISH MODE)

AUTO-2 ON

(CRUISE MODE)

AUTO OFF

2-6

2.6

Selecting Picture Advance Speed

The picture advance speed determines how quickly the vertical scan lines run across the screen.

When selecting a picture advance speed, keep in mind that a fast advance speed will expand the size of the fish school horizontally on the screen and a slow advance speed will contract it.

1. Press the [BRILL] and [AUTO] keys together. The display should look something like the one below. The fraction shown on the display denotes number of scan lines produced per transmission. For example, 1/8 means one scan line is produced every eight transmissions.

"0" freezes the display and it is convenient for observing an echo.

ADVANCE: 1

(1/8)

2. Continue pressing the [BRILL] and [AUTO] keys together to select desired speed.

2.7

Display Range Selection

The basic range and range shifting functions used together give you the means to select the depth you can see on the screen. The basic range can be thought of as providing a "window" into the water column and range shifting as moving the "window" to the desired depth.

Shift

Display

2.7.1

Basic range selection

The basic range may be selected with the [RANGE] switch from the eight ranges shown in the table below.

Table 1-1 Basic ranges (default settings)

Range No.

Meters

Feet

Fathoms

Passi/Braza (P/B) 3

1

5

15

3

2

10

30

5

5

3

20

60

10

10

4

40

120

20

30

5

80

200

40

50

6

150

400

80

100

7

200

600

100

150

8

300

1000

150

200

2-7

Operate the [RANGE] switch and the display shown below appears. Adjust the [RANGE] control again to select a basic range.

RANGE: 30 ft

Note: The [RANGE] switch is inoperative when the auto function is active.

2.7.2

Range shifting

The basic range may be shifted up or down with the [SHIFT] keys ([+], [-]). Press a [SHIFT] key and the display shown below appears. Press a [SHIFT] key again to select the amount of shift.

SHIFT: 0 ft

Note 1: The maximum shift range is 1000 feet (300 m). However, actual range will depend on underwater conditions. In the worst case echoes will not appear.

Note 2: Basic ranges can be changed on the system menu [3].

Note 3: The unit of depth may be selected on the system menu [1].

Note 4: The range cannot be shifted when the auto function is active.

2.8

Erasing Weak Echoes

Dirty water or reflections from plankton may be painted on the display in green or light-blue.

These weak echoes may be erased as follows:

1. Press the [SIG LEV] key. The following display appears.

SIGLVL: 1

2. Press the [SIG LEV] key again to select signal level (echo color) to erase. Every pressing deletes the weakest color echoes on the screen, up to the light-blue echoes. You may identify the deleted colors on the color bar; deleted colors disappear from the color bar. The selected level is shown as SL1, SL2 or SL3 at the top of the screen. Signal level "0" disables this function.

2-8

2.9

Measuring Depth to a Fish School

The VRM (Variable Range Marker) functions to measure the depth to fish schools or other echo.

1. Press ] or [

▼

] to place the VRM on an echo.

2. Read the VRM range just above the VRM.

0

VRM (green)

20

39.8

40

60

49.6

80

2.10

A-scope Display

This display shows echoes at each transmission with amplitudes and tone proportional to their intensities, on the right 1/4 of the screen. It is useful for estimating the kind of fish school and bottom composition. To turn the A-scope display on or off press the [SIG LEV] and [ALARM] keys together.

0

0.0

10

Normal display

20

32.3

30

40

A-scope display

2-9

2.11

Menu Operation

The menu, consisting of the main menu and three system menus, contains less often used functions which do not require frequent adjustment.

2.11.1 Menu selection

1. Set the [MODE] switch in the MENU position.

NOISE LIMITER

OFF

1 2 3

HUE SELECTION

1 (1 - 7)

GAIN ADJUST 200KHZ

0 (-20 - +20)

GAIN ADJUST 50KHZ

0 (-20 - +20)

CLUTTER LEVEL

0 * (0 - 3)

ZOOM MODE (B. LOCK)

M/Z B/L B/Z

/ : TO SELECT ITEM, 1/2

-/+

:

TO SET CONDITION.

* A shown when

auto mode is

active.

2. To go to page 2 of the main menu, select ZOOM MODE (B. LOCK) with [

▼

] and then press

[

▼

] again.

MARKER (VRM)

VRM

WHT

GO TO SYSTEM MENU

NO YES


-/+

:

TO SET CONDITION.

3. To go to the system menu, press [

▼

] to select GO TO SYSTEM MENU and [+] to select YES.

You can switch among system menus by selecting MENU and using [+] or [-].

2-10

( * SYSTEM MENU [1] *)

MENU :

DEPTH :

SPEED :

TEMP :

ZOOM MARK :

F/A LEVEL :

NAV :

[1] [2] [3] m ft fa PB kt MPH KPH

°

C

°

F

OFF ON

WEAK MED STRG

GRPH DATA

/ : TO SELECT ITEM.

-/+

:

TO SET CONDITION.

(* SYSTEM MENU [2] *)

MENU :

NAV DSP :

[1] [2] [3]

OFF L/L R/B CSE

FORMAT :

SPD SEL :

TMP SEL :

TMP GRP:

SPD ADJ :

TMP ADJ :

NMEA CIF

OFF OWN NMEA

OFF OWN NMEA

OFF LOW HIGH

+0 % [-50 - +50]

+0.0

°

F [-20 - +20]

(ADJUSTABLE OWN SENSOR ONLY.)

OWN SENSOR

SPEED

OWN SENSOR

TEMPERATURE

0.0 kt

°

F

/ : TO SELECT ITEM.

-/+

:

TO SET CONDITION.


MENU :

RANGE1 :

RANGE2 :

RANGE3 :

RANGE4 :

RANGE5 :

RANGE6 :

RANGE7 :

RANGE8 :

ZOOM RANGE:

B/L RANGE:

[1] [2] [3]

15 (10 - 1000)

30

60

120

200

400

600

1000

X2 X3 X4 X5

10 20

/ : TO SELECT ITEM.

-/+

:

TO SET CONDITION.

4. Press ] or [

▼

] to select menu item.

5. Press [+] or [-] to set condition.

6. Set the [MODE] switch in any other position to register selection and close the menu.

2.11.2 Main menu description

Menu item

NOISE LIMITER

HUE SELECTION

GAIN ADJUST (50kHZ, 200KHZ)

CLUTTER LEVEL

ZOOM MODE

MARKER

GO TO SYSTEM MENU

Description

Eliminates noise from other echo sounders and electrical interference.

Selects colors for echoes and background.

Adjusts the gain for both high and low frequencies. Changing this setting by 10 is equal to changing the GAIN control by 1. If the sensitivity is too low or the auto function does not work properly when the transducer is installed inside the hull, try to adjust the gain here.

Eliminates blue dots, which are mainly caused by unclean water, from the screen.

Selects the type of zoom display. B/L, Bottom-lock; B/Z,

Bottom zoom, and M/Z, Marker zoom.

Selects which marker to use; VRM or white marker.

Select YES to go to the system menu.

2-11

2.11.3 System menu description

Menu item

System Menu 1

DEPTH

SPEED

TEMP

ZOOM MARK

F/A LEVEL

Description

Selects unit of depth measurement; meters, feet, fathoms, passi/braza.

Selects unit of speed measurement; knots, miles per hour, kilometers per hour.

Selects unit of temperature measurement; Celsius and Fahrenheit.

Turns zoom range and expansion range markers on/off.

Sets fish alarm level.

WEAK: Alarm against weak to strong echoes.

MED: Alarm against medium to strong echoes.

STRG: Alarm against strong echoes only.

Selects digital or analog display of navigation data.

NAV

System Menu 2

NAV DSP

FORMAT

SPD SEL

TMP SEL

TMP GRP

SPD ADJ

TMP ADJ

Selects digital data to display at top-left corner on the screen. L/L, latitude and longitude position; R/B, Range and bearing to waypoint, CSE, Ship's course.

Selects format of data fed from nav sensor. CIF (FURUNO developed) is standard data format of FURUNO equipment.

Selects source of speed data. OWN, speed data fed by optional speed sensor;

NMEA, speed data fed by position-fixing equipment.

Selects source of water temperature data. OWN, water temperature data fed by optional water temperature sensor; NMEA, water temperature data fed by position-fixing equipment.

Turns temperature graph on/off. Requires water temperature sensor.

OFF: No water temperature graph.

LOW: Temperature graph scale 30 °F to 70°F (0°C to 20°C)

HIGH: Temperature graph scale 50 °F to 90°F (10°C to 30°C)

Offsets speed measured by optional speed sensor. When the speed indication appears to be wrong, apply an offset here. Speed data fed from position-fixing equipment cannot be compensated.

Offsets water temperature measured by optional speed sensor. When the water temperature indication appears to be wrong, apply an offset here. Water temperature data fed from position-fixing equipment cannot be compensated.

System Menu 3

RANGE 1-8

ZOOM RANGE

B/L RANGE

Sets basic ranges. Change when default ranges are not satisfactory.

Selects range scale for bottom zoom and marker zoom displays. X2, for example, expands echoes to double size relative to those on the normal display.

Selects range for bottom-lock expansion display.

2-12

2.12

Suppressing Interference

Interference from other acoustic equipment operating nearby or other electronic equipment on your boat may show itself on the display as shown below.

To suppress interference, do the following:

1. Select MENU with the [MODE] switch.

2. Select NOISE LIMITER.

3. Press [+] or [-] to select degree of suppression desired. "3" provides the highest degree of suppression.

Interference from Electrical inteference other sounder

Turn the noise limiter circuit off when no interference exists, otherwise weak echoes may be missed.

2.13

Suppressing Low Level Noise

Light-blue dots may appear over most of screen. This is mainly due to unclean water or noise.

This noise can be suppressed by adjusting CLUTTER on the menu.

When the automatic mode is on, the clutter suppression setting is fixed at AUTO. To suppress low level noise in manual sounder operation do the following:


2. Select CLUTTER LEVEL.

3. Press [+] or [-] to select degree of suppression desired. "3" provides the highest degree of suppression.

Low level noise

2-13

2.14

Selecting Background and Echo Colors


3. Press [+] or [-] to select hue arrangement desired, referring to the table below.

Hue options

Hue No.

1

2

5

6

3

4

7

Background color

Blue

Blue

Black

Black

White

White

Black

Echo color

7 colors, bottom red


7 colors, bottom reddish-brown



6 colors, bottom reddish-brown

Monochrome yellow, 8 intensities

2.15

Alarms

2.15.1 Alarm description

Bottom alarm

The bottom alarm sounds when the bottom is within the alarm range set. To activate the bottom alarm the depth must be displayed.

Fish alarm

The fish alarm sounds when fish of a certain strength are within the preset alarm range. The echo strength which triggers the fish alarm can be selected on the system menu [1] with F/A

LEVEL.

Water temperature alarm

There are two types of water temperature alarms: IN and OUT. The IN alarm sounds when the water temperature is within the range set; the OUT alarm sounds when the water temperature is higher than the range set. This alarm requires water temperature data.

2-14

2.15.2 Activating/deactivating an alarm

1. Press the [ALARM] key to display the alarm menu.

BOTTOM OFF

ON

ALARM ZONE : 0 --- 5

RANGE : 5

FISH OFF ON


RANGE : 5

TEMP OFF IN OUT


RANGE : 5 s

/ t

: TO SELECT ITEM.

-/+

:

TO SET CONDITION.

2. Press ] or [

▼

] to select an alarm.

3. Press [+] to select ON, IN or OUT. (For the water temperature alarm, select IN to get the alarm when the water temperature is within the alarm zone range, or OUT to get the alarm when the water temperature is higher than the alarm zone range.)

4. Press ] to select ALARM ZONE.

5. Adjust width of alarm zone with [+] or [-].

Alarm zone

F

Alarm type

B: Bottom

F: Fish

TI: Temperature IN

TO: Temperature OUT

Alarm zone marker

(Fish, bottom alarms only)

Alarm icon (Appear when alarm is violated.)

6. Press ] to select RANGE.

7. Use [+] to [-] to set display range for the alarm.

To deactivate an alarm, select OFF at step 3 in the above procedure.

2.15.3 Silencing the buzzer

When an alarm is violated, the buzzer sounds and the alarm icon and name of alarm violated

(see illustration above) appear on the display. You can temporarily silence the buzzer by pressing the [ALARM] key. However, the buzzer will sound the next time the alarm setting is violated.

2-15

2.16

White Marker

The white marker functions to display a particular echo color in white. For example, you may want to display the bottom echo (reddish-brown) in white to discriminate fish echoes near the bottom. Note that the bottom must be displayed in reddish-brown for the white marker to function.


2. Press ] until page 2 of the main menu appears.

3. Select WHT from the MARKER field.

4. Set the [MODE] switch in desired mode position.

5. Press ] or [

▼

] to select color to display in white. The indication WHITE MARKER appears.

As you press those keys the white cursor on the color bar shows the color currently selected to display in white.

White cursor shows color currently displayed in white.

2.17

Demonstration Picture

Your unit incorporates a convenient demonstration display to help you become acquainted with how it works. Connection of the transducer is not required.

1. Turn on the equipment while pressing any key. The following display appears.

*** OPTION MODE ***

[

−

] : SELF TEST

[ s

] : SET DATA TO DEFAULT

[ t

] : DEMONSTRATION

PLEASE HIT ANY KEY.

PROG-NO. 025-2156-0**

** Program version No.

2. Press ] to select DEMONSTRATION. The following display appears.

*** DEMO MODE ***

OFF ON

3. Press [+] to select ON.

4. Turn the power off and on again.

5. To turn off the demonstration mode, press [-] to select OFF at step 3 in this procedure.

2-16

2.18

Correcting Speed/Water Temperature Readout

Wrong ship's speed or water temperature indication can be corrected on the system menu 2 as follows:


2. Press

▼

] to select ZOOM MODE, and press the key once again to go to page 2 of the menu.

3. Press

▼

] to select GO TO SYSTEM MENU and then press [+] to select YES.

4. Use [+] key to select system menu 2.


MENU :

NAV DSP :

FORMAT :

SPD SEL :

TMP SEL :

TMP GRP:

SPD ADJ :

TMP ADJ :

[1] [2] [3]

OFF L/L R/B CSE

NMEA CIF

OFF OWN NMEA

OFF OWN NMEA

OFF LOW HIGH

+0 % [-50 - +50]

+0.0

°

F [-20 - +20]


OWN SENSOR OWN SENSOR

SPEED

TEMPERATURE

0.0 kt

°

F s

/ t

: TO SELECT ITEM.

-/+

:

TO SET CONDITION.

5. Select SPD ADJ or TMP ADJ as appropriate.

6. Use [+], [-] to enter offset.

2-17

3. INTERPRETING THE DISPLAY

3.1

Zero Line

The zero line (sometimes referred to as the transmission line) represents the transducer's position, and moves off the screen when a deep phased range is used.

Zero line

3.2

Fish School Echoes

Fish school echoes will generally be plotted between the zero line and the bottom. Usually the fish school/fish echo is weaker than the bottom echo because its reflection property is much smaller compared to the bottom. The size of the fish school can be ascertained from the density of the display.

Size of fish school

3.3

Bottom Echo

Echoes from the bottom are normally the strongest and are displayed in reddish-brown color (in default color arrangement) but the color and width will vary with bottom composition, water depth, frequency, sensitivity, etc.

In a comparatively shallow depth, a high gain setting will cause a second or sometimes a third or a fourth echo to be displayed at the same interval between them below the first echo trace. This is because the echo travels between the bottom and the surface twice or more in shallow depths.

The color of the bottom echo can be used to help determine the density of the bottom materials (soft or hard). The harder the bottom, the wider the trace. If the gain is set to show only a single bottom echo on mud, a rocky bottom will show a second or third bottom return.

The range should be chosen so the first and second bottom echoes are displayed when bottom hardness is being determined.

Intensity difference in water depth

Second bottom echo

Rock base

Mud and sand

Shift

Small school

Large school

3-1

3.4

Surface Noise/Aeration

When the waters are rough or the boat passes over a wake, surface noise may appear near the zero line. As surface turbulence is acoustically equivalent to running into a brick wall, the bottom echo will be displayed intermittently. Similar noise sometimes appears when a water temperature difference (thermocline) exists. Different species of fish tend to prefer different temperature zones, so the thermocline may be useful to help identify target fish. 200 kHz tends to show shallow thermoclines better than 50 kHz.

In rough waters the display is occasionally interrupted due to below-the-ship air bubbles obstructing the sound path. This also occurs when the boat makes a quick turn or reverses movement. Lowering the picture advance speed may reduce the interruption. However, reconsideration of the transducer installation may be necessary if the interruption occurs frequently.

Surface noise

Caused by aerated water

Thermocline

3-2

4. MAINTENANCE, TROUBLESHOOTING

WARNING

ELECTRICAL SHOCK HAZARD

Do not open the equipment.

Only qualified personnel should work inside the equipment.

4.1

Maintenance

Regular maintenance is important for good performance. Following the recommended maintenance procedures will help keep your set in good working condition.

4.1.1

General checking

Important points to be checked from time to time are tabulated below.

Maintenance check points

Check point

Transducer cable

Power cable plug/transducer cable plug

Display unit ground

Ship's mains voltage

Action

If conductors are exposed, replace cable.

If loosened, tighten.

If corroded, clean.

If out of ratings, correct problem.

4.1.2

Replacement of fuse

The fuse on the power cable protects the equipment against overvoltage/reverse polarity of the ship's mains or internal fault of the equipment. If the fuse blows, find the cause before replacing the fuse. If the fuse blows again after replacement, call for service. A fuse rated for more than 3A should not be used since it would damage the equipment and void the warranty.

CAUTION

Use the proper fuse.

Use of a wrong fuse can cause fire or equipment damage.

4-1

4.1.3

Cleaning

Keep the equipment clean and dry at all times. Dust or loose dirt should be wiped off with a soft, dry cloth. Do not use chemical cleaners to clean the display unit - they can remove paint or markings.

4.1.4

Maintenance of the transducer

Marine life on the transducer face will result in gradual decrease in the sensitivity. Check the transducer face for cleanliness each time the boat is hauled out of the water. Carefully remove any marine life with a piece of wood or fine sandpaper.

4-2

4.2

Basic Troubleshooting

The troubleshooting table below presents common problems and the means to restore normal operation. If normal operation cannot be restored do not attempt to check inside the equipment.

If…

neither echo nor fixed range scale appears no echo but range scale shows echo appears but no zero line the equipment shows signs of low sensitivity no water depth readout is shown much noise or interference is present

Basic troubleshooting

speed/water temperature indication* is absent or unrealistic position indication* is absent or unrealistic

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

Then

check battery voltage.

check fuse.

check battery terminal for corrosion.

check that power cable is securely plugged.

check if display speed is set to "0." check if transducer plug is firmly connected.

check if range shifting is set to "0." check if gain setting is suitable.

check for air bubbles or marine life attached to transducer.

check if water is dirty.

bottom may be too soft to return proper echo.

check if bottom echo is painted red or reddish-brown.

check if bottom is displayed.

check if transducer/transducer cable is too close to engine.

check unit ground.

check if there are other echo sounders of the same frequency nearby.

check that sensor plug is securely fastened.

check that sensor plug is securely fastened.

check position-fixing equipment.


4-3

4.3

Diagnostics

Your equipment incorporates a diagnostic test facility to check the devices and controls for proper operation.

1. Turn on the unit while pressing any key. The following display appears.

*** OPTION MODE ***

[

−] : SELF TEST

[ ] : SET DATA TO DEFAULT

[ ] : DEMONSTRATION

PLEASE HIT ANY KEY.

PROG-NO. 025-2156-0**


2. Press the [-] key to start the diagnostic test. The diagnostics screen appears, devices are checked and the results displayed as OK or NG (No Good).

3. Operate all controls one by one. Confirm that key name and switch position are correct.

Note: Do not place the [MODE] switch in the POWER OFF position; power will be turned off.

(* SELF TEST *)

REDDISH-BROWN

RED

ORANGE

PROM : OK

E2PR : OK

SRAM : OK

VRAM1 : OK

VRAM2 : OK

SIO : NG*

YELLOW

GREEN

LIGHT-BLUE

KEY : NONE

RANGE : 1

GAIN : 14

MODE : MENU

BLUE

DEVICE CHECK

Major devices are checked.

OK for normal, NG (No Good) for error.

PANEL SWITCH CHECK

Operate each key and switch.

Confirm that key name and switch position are correct.

* Special connection cable required to check SIO.

NG displayed when cable is not connected.

PLEASE CHECK KEYS/SWITCHES.

Note: If NG appears instead of OK for any device or panel switch, contact FURUNO for service. Do not attempt to check inside the unit because of the high voltage used in the equipment.

4. To terminate the test, turn the power off.

4-4

4.4

Transducer Check

A simple and reliable check of the transducer is to temporarily replace the transducer with a new one. If the sensitivity is considerably improved through this change, the transducer is probably faulty. This method is especially useful for inside-hull or through-hull installation.

Another method is to listen to the transmission sound. Haul the transducer from the water and turn on the power. Put your ear near the transducer face and carefully listen to the transmission sound. If you can hear a clicking sound, the transducer is probably normal. Next, rub the transducer face with your hand and observe whether noise appears on the screen. The appearance of noise indicates the transducer is normal. In case of neither sound nor noise, the transducer is probably faulty.

4.5

Speed/Water Temperature Sensor (option)

Check

The idea of the transducer check can apply to this case, too; temporarily substitute a new sensor.

If the speed/temperature indications become normal, your sensor may be faulty.

When a new sensor is not available, try to turn the water wheel with a finger. If the sensor is normal, the speed indication will be two to three knots when the wheel is turned slowly and seven to eight knots when turned more quickly. As for the water temperature, the water temperature indication should change when you touch the thermosensor.

4.6

Restoring Default Settings

1. Turn on the unit while pressing any key. The following display appears.

*** OPTION MODE ***

[

−

] : SELF TEST

[ s

] : SET DATA TO DEFAULT

[ t

] : DEMONSTRATION

PLEASE HIT ANY KEY.

PROG-NO. 025-2156-0**


2. Press ] to restore default settings. The message SET DATA TO DEFAULT! appears. After default settings are restored, the message is erased and the normal display appears. See the next page for default settings.

4-5

MENU TREE

[MODE] switch in

MENU position

NOISE LIMITER

OFF 1 2 3

HUE SELECTION

1 (1 - 7)

GAIN ADJUST 200KHZ

0 (-20 - +20)

GAIN ADJUST 50KHZ

0 (-20 - +20)

CLUTTER LEVEL

0 (0 - 3)

ZOOM MODE (B. LOCK)

M/Z B/L B/Z


-/+

:

TO SET CONDITION.

Press at

ZOOM MODE.

MARKER(VRM)

VRM WHT

GO TO SYSTEM MENU

NO YES


-/+

:

TO SET CONDITION.

Default setings are circumscribed.

DEFAULT CONTROL SETTINGS

SHIFT: 0

BRILL:

ADVANCE:

SIG LEV:

ALARM:

6

4

0

OFF

A-SCOPE:

MARKER:

OFF

0

Press [+] at

GO TO SYSTEM

MENU.

( * SYSTEM MENU [1] *)

MENU : [1] [2] [3]

DEPTH :

SPEED :

TEMP :

ZOOM MARK :

F/A LEVEL :

NAV : m ft fa PB

kt MPH KPH

° C ° F

OFF ON

WEAK MED STRG

GRPH DATA

/ : TO SELECT ITEM.

-/+

:

TO SET CONDITION.

Press [-] key.

Press [+] at

MENU.


MENU :

NAV DSP :

FORMAT :

[1] [2] [3]

OFF L/L R/B CSE

NMEA CIF

SPD SEL :

TMP SEL :

TMP GRP:

SPD ADJ :

TMP ADJ :

OFF OWN NMEA

OFF OWN NMEA

OFF LOW HIGH

+0 % [-50 - 50]

+0.0

°F [-20 - +20]


OWN SENSOR

OWN SENSOR

SPEED

TEMPERATURE

0.0 kt

°F

/ : TO SELECT ITEM.

-/+

:

TO SET CONDITION.

Press [-] key.

Press [+] at

MENU.


MENU :

RANGE1 :

RANGE2 :

RANGE3 :

RANGE4 :

RANGE5 :

RANGE6 :

RANGE7 :

RANGE8 :

ZOOM RANGE:

B/L RANGE:

[1] [2] [3]

15 (10 - 1000)

30

60

120

200

400

600

1000

X2 X3 X4 X5

10 20

/ : TO SELECT ITEM.

-/+

:

TO SET CONDITION.

A-1

SPECIFICATIONS OF COLOR VIDEO SOUNDER

FCV-667

1. GENERAL

(1) Display

(2) Echo Color

(3) Basic Range

6-inch diagonal CRT

8 colors (including background color) according to echo intensity.

Monochrome display is also available. The background color is selectable from blue, light blue, white and black.

Meters: 5/10/20/40/80/150/200/300

Feet: 15/30/60/120/200/400/600/1000

Fathoms: 3/5/10/20/40/80/100/150

Passi/Braza: 3/5/10/30/50/100/150/200

(4) Range Shift

(5) Zoom Range

The basic ranges can be changed on the system menu.

Up to 300 meters (1000 feet, 150 fathoms, 200 passi/braza)

Times 2, 3, 4 and 5 ranges

(6) Bottom Lock Expansion Range

(7) Auto Mode

5/10 meters, 10/20 feet, 2/5 fathoms, 2/5 passi/braza

Automatic adjustment of range and gain

(8) Display Mode High Frequency (HF), Low Frequency (LF), Dual (high and low frequency 1/2 display on each), Zoom (high/low freq. And Zoom),

NAV (Graphical and numerical displays of water depth, water temperature, ship’s speed, L/L data, etc), and A-scope Display

(9) Zoom Display Marker Zoom, Bottom Zoom and Bottom-lock Expansion

(10) Display Advance Speed Lines/TX: Freeze, 1/8, 1/4, 1/2, 1/1, 2/1

(11) TX Frequency/ Output power

50 and 200 kHz (alternately transmitted), 300 W

(12) Pulse-length/TX rate

Display End Depth (m)

Pulse-Length (ms)

TX Rate (pulse/min)

(13) Interference Rejecter

(14) Alarm

(15) Input/output data

Input

Output

CIF Input

5

0.2

10

0.2

20

0.2

40

0.4

80

0.8

150

1.5

300

3.0

600 600 600 375 187 100 50

Rejects unwanted signals by comparing last and present echoes in strength.

Fish and Bottom alarms, Temperature alarm*

NMEA 0183 or CIF format

RMB, BWC, RMC, RMA, GLL, VTG, VHW, MTW, XTE

SDDBT, YCMTW*, VWVHW*, SDDPT

L/L, Ship’s speed, Course, Waypoint ID, Range/bearing to Waypoint,

Water temperature, Cross-track Error

SP - 1

CIF Output

2. POWER SUPPLY

(1) Display Unit

Depth, Water temperature*, Ship’s Speed*

*: Speed/temperature sensor required.

12-24 VDC (-10%, +30%): 2.5-1.25 A

3. ENVIRONMENTAL CONDITION

(1) Ambient Temperature 0°C to +50°C

(2) Relative Humidity

(3) Water proofing

85% at 40°C

Display Unit: IPX4

(4) Vibration ±1 mm ±10%, 2(5) to 13.2 Hz,

Maximum acceleration 7 m/s

2

, 13.2 to 100 Hz

4. COATING COLOR

(1) Display Unit Chassis: 2.5GY5/1.5

Panel: N3.0 Newtone No.5

SP - 2

Aeration........................................................ 3-2

Alarms activating ................................................ 2-15 bottom .................................................... 2-14 fish ......................................................... 2-14 silencing buzzer...................................... 2-15 water temperature................................... 2-14

A-scope display ............................................ 2-9

AUTO key..................................................... 2-6

Automatic operation...................................... 2-6

Background color........................................ 2-14

Bottom alarm .............................................. 2-14

Bottom echoes.............................................. 3-1

Bottom zoom mode....................................... 2-3

Bottom-lock mode......................................... 2-3

BRILL key..................................................... 2-1

Brilliance....................................................... 2-1

Checking ...................................................... 4-1

Cleaning ....................................................... 4-2

Clutter ........................................................ 2-13

Default settings............................................. 4-5

Demonstration picture................................. 2-16

Depth measurement ..................................... 2-9

Diagnostics (self test) ................................... 4-4

Display mode................................................ 2-1

Dual frequency mode.................................... 2-2

Echo color .................................................. 2-14

Fish alarm .................................................. 2-14

Fish school echoes ....................................... 3-1

Fuse replacement......................................... 4-1

GAIN control................................................. 2-6

HF, LF mode................................................. 2-2

Hue ............................................................ 2-14

Indications .................................................... 1-2

INDEX

Interference.................................................2-13

Main menu ..................................................2-10

Marker zoom mode .......................................2-3

Menu main menu description ............................2-11 menu selection ........................................2-10 system menu description .........................2-12

Menu tree..................................................... A-1

MODE switch ................................................2-1

Nav data enlargement ...................................2-5

Nav mode .....................................................2-4

Noise limiter ................................................2-13

Picture advance speed ..................................2-7

Power on/off..................................................2-1

Principle of operation........................................v

RANGE switch ..............................................2-7

SHIFT keys ...................................................2-8

SIG LEV key .................................................2-8

Speed indication correction .........................2-17

Speed sensor check......................................4-5

Surface noise ................................................3-2

System menu ..............................................2-12

Transducer checking....................................................4-5 maintenance..............................................4-2

Troubleshooting.............................................4-3

VRM..............................................................2-9

Water temperature alarm.............................2-14

Water temperature graph.............................2-12

Water temperature indication correction.......2-17

Water temperature sensor check ...................4-5

White marker...............................................2-16

Zero line........................................................3-1

Zoom mode...................................................2-3

Index-1

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