Furuno 1623 User Manual 2

Page 1
MARINE RADAR
MODEL 1623
Page 2
9-52 Ashihara-cho,9-52 Ashihara-cho,
A
A
*00080939200**00080939200*
*00080939200**00080939200*
*OME35100A00**OME35100A00*
Nishinomiya, JapanNishinomiya, Japan
Telephone :Telephone : 0798-65-21110798-65-2111 Telefax :Telefax : 0798-65-42000798-65-4200
Your Local Agent/DealerYour Local Agent/Dealer
ll rights reserved.
ll rights reserved.
PUB.No.PUB.No. OME-35100OME-35100
(( DAMIDAMI ))
MODEL1623MODEL1623
Printed in JapanPrinted in Japan
FIRST EDITION :FIRST EDITION : OCT.OCT. 20022002
* 0 0 0 8 0 9 3 9 2 0 0 ** 0 0 0 8 0 9 3 9 2 0 0 *
*OME35100A00**OME35100A00*
* O M E 3 5 1 0 0 A 0 0 ** O M E 3 5 1 0 0 A 0 0 *
Page 3

TABLE OF CONTENTS

FOREWORD............................................ iii
SYSTEM CONFIGURATION.................... iv
EQUIPMENT LISTS.................................. v
1. OPERATION ........................................ 1
1.1 Controls............................................... 1
1.2 Indications...........................................2
1.3 Turning Power On/Off ......................... 3
1.4 Transmitting, Standby ......................... 3
1.5 Adjusting Display Contrast, Brilliance . 4
1.6 Choosing the Range ........................... 4
1.7 Receiver Sensitivity............................. 4
1.8 Suppressing Sea Clutter ..................... 5
1.9 Suppressing Rain Clutter .................... 6
1.10 Measuring the Range.......................... 6
1.11 Measuring the Bearing........................7
1.12 Shifting the Display ............................. 7
1.13 Zoom...................................................8
1.14 User Menu Overview........................... 8
1.15 Heading Line.......................................9
1.16 Interference Rejector...........................9
1.17 Noise Rejector...................................10
1.18 Echo Trail, Trail Brilliance.................. 10
1.19 Echo Stretch ...................................... 10
1.20 Guard Alarm.......................................11
1.21 Watchman.........................................12
1.22 Suppressing Long-range Rain
Clutter................................................12
1.23 Panel Backlighting.............................12
1.24 Hue....................................................12
1.25 Resetting Distance Run .................... 13
1.26 PROG Key......................................... 13
1.27 Outputting Target Position to a
Plotter................................................ 13
1.28 Turning Navigation Data On/Off........ 14
1.29 Setting up Nav Data Displays ........... 14
1.30 System Menu .................................... 16
2. MAINTENANCE, TROUBLESH OOTING
2.1 Maintenance......................................18
2.2 Replacing the Fuse............................19
2.3 Troubleshooting.................................19
2.4 Diagnostics ........................................20
2.5 Test Pattern........................................21
2.6 Clearing the Memory .........................21
2.7 Replacing the Magnetron ..................21
2.8 Replacing the Synchro Belt
3. INSTALLATION..................................22
3.1 Antenna Unit Installation....................22
3.2 Display Unit Installation .....................25
3.3 Wiring.................................................26
3.4 Adjustments.......................................27
3.5 Magnetron Heater Voltage.................29
MENU TREE.......................................MN-1
SPECIFICATIONS............................... SP-1
PACKING LIST OUTLINE DRAWINGS INTERCONNECTION DIAGRAM SCHEMATIC DIAGRAMS
Declaration of Conform it y
18
................21
i
Page 4

SAFETY INSTRUCTIONS

Safety Instructions for the Operator
WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
Only qualified personnel should work inside the equipment.
Wear a safety belt and hard hat when working on the antenna unit.
Serious injury or death can result if someone falls from the radar antenna mast.
Do not disassemble or modify the equipment.
Fire, electrical shock or serious injury can result.
Turn off the power immediately if water leaks into the equipment or the equip­ment is emitting smoke or fire.
Continued use of the equipment can cause fire or electrical shock.
Safety Instructions for the Installer
WARNING
Do not open the equipment unless totally familiar with electrical circuits and service manual.
Only qualified personnel should work inside the equipment.
Wear a safety belt and hard hat when working on the antenna unit.
Serious injury or death can result if someone falls from the radar antenna mast.
Construct a suitable service platform from which to install the antenna unit.
Serious injury or death can result if some­one falls from the radar antenna mast.
Be sure that the power supply is compatible with the voltage rating of the equipment.
Connection of an incorrect power supply can cause fire or damage the equipment.
CAUTION
Use the proper fuse.
Use of a wrong fuse can damage the equipment and void the warranty.
Use only the specified power cable.
Fire or damage to the equipment can result if a different cable is used.
CAUTION
WARNING LABEL A warning label is attached to the equipment. Do not remove the label. If the label is missing or damaged, contact a FURUNO agent or dealer about replacement.
WARNING
To avoid electrical shock, do not remove cover. No user-serviceable parts inside.
Name: Warning Label (1) Type: 86-003-1011-1 Code No.: 100-236-230
ii
Observe the following compass safe distances to prevent interference to a magnetic compass:
Standard Steering compass compass
Display unit
Antenna unit
0.50 m 0.30 m
1.25 m 0.95 m
Page 5

FOREWORD

A Word to the Owner of the MODEL 1623
Congratulations on your choice of the FURUNO MODEL 1623 Marine Radar.
For over 50 years FURUNO Electric Company has enjoyed an enviable reputation for innovative and dependable marine electronics equipment. This dedication t o excellence is furthered by our extensive global network of agents and dealers.
Your radar is designed and constructed to meet the rigorous demands of t he marine environment. However, no machine can perform its intended function unless installed, operated and maintained properly. Please carefully read and follow the recommended procedures for installation, operat ion, and maintenance.
We would appreciate hearing from you, the end-user, about whether we are achieving our purposes.
Thank you for considering and purchasing FURUNO equipment.
Features
Your radar has a large variety of functions, all contained in a rugged plastic case. All controls respond immediately to the operator’s command and each time a key is pressed the corresponding change can be seen on the screen.
The main features of the MODEL 1623 are
Daylight viewing radar specially designed
for small craft and sailing yachts.
Traditional FURUNO reliability and quality
in a compact, light-weight and low-cost radar.
Compact and light-weight radome
antenna with precision 38 cm center-fed radiator.
High definition 6-inch monochrome LCD
display.
Automatic control of sensitivity (gain),
tuning and A/C SEA for sim plified operation.
Targets can be displayed in grey tones on
a white background or vice versa, for optimal viewing under any lighting conditions.
On-screen alphanumeric readout of all
operational information.
User programmable nav data displays.
[PROG] key provides menu shortcut.
Standard features include Display Shift ,
EBL, Echo Stretch, Echo Trail, Guard Alarm, Interfer ence Rejector, VRM, Zoom.
Guard zone watches for targets entering
(or exiting) a guard zone.
Operates on 12 or 24 V DC power.
iii
Page 6

SYSTEM CONFIGURATION

iv
Page 7

EQUIPMENT LISTS

Standard supply
Name Type Code No. Qty Remarks
Antenna Unit RSB-0093 1 Display Unit RDP-141 1
CP03-25301 008-442-280 1 set For antenna unit, including EMI core CP03-24910 000-080-231 Antenna cable (10 m)
Installation Materials*
Spare Parts* SP03-14301 008-442-270 1 set Fuse
*: See packing list at end of m anual.
CP03-24920 000-080-232 Antenna cable (15 m) CP03-24930 000-080-233 CP03-25101 008-441-250 1 set For display unit, including tapping
1 set
Antenna cable (20 m)
screws for mounting hanger
Option
Name Type Code No. Qty Remarks
Buzzer Assy. XH3-BZ-L970 000-146-422 Cable Assy. MJ-A7SPF0007-050 000-144-418 1
Cable Assy. MJ-A15A7F0004-005 000-145-690 1
Cable Assy. A15A7F0005-020 000-145-691 1 7P-7P, for NMEA, 2 m Cable Assy. MJ-A10SPF0003-300 000-130-034 1 Radome Mounting
Bracket
Rectifier
OP03-93 008-445-080 1 PR-62 000-013-484
PR-62 000-013-485 PR-62 000-013-486 PR-62 000-013-487
1
With connector, 0.9 m Connector at one end, 5
m, for NMEA For NMEA, 0.5 m,
connector at both ends, (7P-7P/6P)
Antenna cable, 30 m, for 24 VDC power
For mounting antenna unit on sailboats
100 VAC 115 VAC
1
220 VAC 230 VAC
v
Page 8

1. OPERATION

1.1 Controls

Display unit
How to remove the hard cover
Place your thumbs at the center of the cover, and then lift the cover while pressing it with your thumbs.
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1.2 Indications

Range
Range ring interval
Zoom
Watchman
1.5
nm
0.5
ZOOM
WATCH
SIM
Simulation mode
TRAIL
G(IN)
ES H
IR H FTC
1. OPERATION
Echo trails Guard alarm (IN or OUT)
Echo stretch
Interference rejector
Rain clutter suppressor
Guard zone
Cursor
VRM
EBL bearing
VRM range
Position
Speed Course
5.0 kt 135°
EBL VRM
45.0°
1.25
nm
RNG 0.62nm BRG 283.2° TTG 0H7M
34°44.135 N 135°44.135 E
EBL
Heading line
Range rings
Nav data (Requires appropriate sensors.)
Range, bearing and time-to-go to cursor location (Cursor latitude and longitude position also available if radar is interfaced with a navigator.)
Indications
About the LCD
This high quality LCD displays better than 99.9% of its picture elements. The remaining 0. 01% may drop out or light, however this is not an indication of malfunction; it is characteristic of the LCD.
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1. OPERATION

1.3 Turning Power On/Off

Press the [POWER/BRILL] key to turn on the power. The unit beeps, the startup screen appears, and then the equipment checks t he ROM and RAM for proper operation and displays program number. The ROM and RAM check shows OK or NG (No Good). If NG appears, try to press any key except the [POWER/BRILL] key to start operation. However, the equipment may not work properly. Contact your dealer for advice.
6" LCD MARINE RADAR
MODEL 1623
FURUNO ELECTRIC CO., LTD.
ROM : OK RAM : OK Program No: 0359183-XX.XX
XX.XX = Program version no.
Startup screen
After the completion of t he startup test, a timer displays the time remaining for warm up of the magnetron (t he device which transmits radar pulses), counting down from 1: 00 t o 0:00.
To turn off the power, press and hold down the [POWER/BRILL] key until the screen goes blank. The time re m aining until power is turned off is counted down on the screen.
Note 1: In a cold environment the screen appears “foggy” when the power is turned on but is soon restored to normal condition. Note 2: The example screens shown in this manual may not match the screens you see on your display. The screen you see depends on your system configuration and equipment settings.

1.4 Transmitting, Standby

After the power is turned on and the magnetron has warmed up, “ST-BY” (Standby) appears, indicating the radar is ready to transmit radar pulses.
To toggle between transmit and standby, do the following:
1. Press the [POWER/BRILL] key momentarily to show the brilliance/contrast adjustment window.
BRILL/CONTRAST
LOW HIGH
CONT: 4
LOW HIGH
BRILL:
[MODE]: TX/ST-BY
[MENU/ESC] : Exit.
Brilliance/contrast adjustment window
2. Press the [MODE] key to go to standby and transmit alternately.
Note: If you attempt to transmit before “ST-BY” appears, the buzzer sounds and the radar does not transmit pulses. Wait until “ST-BY” appears.
3. Press the [MENU/ESC] key to close t he window.
When radar pulses ar e transmitted the radar receive is automatically tuned. Echoes appear in four levels of digitized video according to echo strength. When a target is beneath a marker (VRM, EBL, heading line, range ring) the part of the marker where the target lies is displayed in reverse video.
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3
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1. OPERATION

1.5 Adjusting Display Contrast, Brilliance

1. Press the [POWER/BRILL] key
momentarily to show the brilliance/contrast adjustment window.
BRILL/CONTRAST
LOW HIGH
CONT: 4
LOW HIGH
BRILL:
[MODE]: TX/ST-BY
[MENU/ESC] : Exit.
9
Brilliance/contrast adjustment w indow
2. Press ◄ or ► to adjust contrast.
3. Press ▲ or ▼ to adjust brilliance.
4. Press the [MENU/ESC] key to escape.
Note 1: Windows other t han m enu windows are erased when there is no operation within about 10 seconds.
Note 2: W hen t he power is reapplied after turning off the eq uipm ent with minimum brilliance, the radar starts up with minimum brilliance, after the start up screen appears. Adjust the brilliance as necessary.

1.6 Choosing the Range

The range selected automatically determ ines the range ring interval, the number of range rings and pulse repetition rate.
Press the [RANGE+] or [RANGE-] key to select a range. The range and r ange ring interval appear at the top left corner on the screen.
Range
Range ring
6.0
2.0
nm
interval
EBL
- - - .-°
VRM - - - -nm
RNG 03.2nm BRG 60.2° TTG 02H21M
Location of range and range ring
interval indications

1.7 Receiver Sensitivity

The [GAIN] key adjusts t he sensitivity (gain) of the receiver. It works in precisely the same manner as the volume control of a broadcast receiver, amplifying the signals received.
The sensitivity is adjusted automatically according to sea conditions, and you may also further adjust it manually to fine tune. The proper setting is such that the background noise is just visible on the screen.
If you set up for too lit t le sensit ivity, weak echoes may be missed. On the other hand excessive sensitivity yields too much background noise; weak target s m ay be missed because of the poor contrast between desired echoes and the background noise on the display.
1. Press the [GAIN] key consecutively until the display shown below appears.
GAIN
AUTO : MODERATE
MANU
[GAIN] : A/C SEA MENU
[MENU/ESC] : Exit.
20
Gain adjustment window
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1. OPERATION
2. Press ▲ or ▼ to choose AUTO or MANU as appropriate.
Automatic gain adjustment
a) Press ► to open the automatic gain
options window.
ROUGH
MODERATE
CALM
Automatic gain options
b) Press ▲ or ▼ to choose ROUGH,
MODERATE or CALM depending on sea conditions.
c) Press ◄ to close the window.
Manual gain adjustment
While observing the scr een and the gain tuning bar, press or ► to set the gain. The setting range is 0-100.
3. Press the [MENU/ESC] key to finish.

1.8 Suppressing Sea Clutter

In rough weather, returns from the sea surface, called sea clutter, are received over several miles around own ship and mask nearby targets. This situation can be improved by properly suppressing the sea clutter with the A/C SEA control.
In most cases suppress the clutter until it has disappeared to leeward, but a little is still visible windward. If the setting is too low, targets will be hidden in the clutter, while if it is set too high, both sea clutter and targets will disappear from the display.
A common mistake is too over-suppress sea clutter so that it is completely removed. You can see how dangerous this can be by setting up for maximum A/C SEA: A dark zone will be created near the center of the scr een, causing a loss of close-in target s. This dark zone is even more dangerous if the sensitivity has not been properly adjusted.
Always leave a little sea clutter visible on the Screen, first adjusting automatically and then fine tuning with the manual control as necessary.
Sea clutter at screen center
1. Press the [GAIN] key consecutively until the display shown below appears.
A/C SEA
AUTO : MODERATE
MANU
[GAIN] : A/C RAIN MENU
[MENU/ESC] : Exit.
20
A/C SEA adjustment window
2. Press ▲ or ▼ to choose AUTO or MANU as appropriate.
Automatic A/C SEA adjustment
a) Press ► to open the automatic A/C
SEA options window.
ROUGH
MODERATE
CALM
A/C SEA options
b) Press or to choose ROUG H,
MODERATE or CALM depending on sea conditions.
c) Press to close the window.
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1. OPERATION
Manual A/C SEA adjustment
While observing the screen and the A/C SEA tuning bar, press or to set the A/C SEA. The setting range is 0-100.
4. Press the [MENU/ESC] key to finish.

1.9 Suppressing Rain Clutter

The vertical beamwidth of the antenna is designed to see surface targ et s even when the ship is rolling. However, by this design the antenna will also pick up rain clutter (rain, snow, or hail) in the same manner as normal targets. The illustrat ion below shows the appearance of rain clutter on the display.
The A/C RAIN control adjusts t he receiver sensitivity as the A/C SEA control does but rather in a longer time period (long er range). The higher the setting the greater the anti-clutter effect .

1.10 Measuring the Range

The bearing to a target can be m easur ed by the range rings, by the cursor and by the VRM (Variable Range Marker).
Measuring range by the cursor
Operate the cursor pad to place the cursor on the inside edge of the target. Read the range to the cursor at the bottom right corner of the display.
Measuring range by the range rings
Count the number of rings bet ween the center of the display and the target . Check the range ring interval and judge the distance of the echo from the inner edge of the nearest ring.
Note: The range rings can be t urned on or off with RINGS on page 1 of the System menu.
Measuring range by the VRM
Rain clutter at screen center
1. Press the [GAIN] key consecutively until the display shown below appears.
A/C RAIN
65
[GAIN] : GAIN MENU
[MENU/ESC] : Exit.
A/C RAIN adjustment window
2. While observing the scr een and t he A/C RAIN tuning bar, press or ► to adjust the A/C RAIN. The setting r ange is 0-100.
3. Press the [MENU/ESC] key to finish.
1. Press the [MARK] key to show the Mark menu.
MARK MENU
[GAIN] : EBL
[ALARM] : VRM
[MARK] : TLL OUTPUT
Mark menu
2. Press the [ALARM] key to display the VRM, which is a dashed ring to distinguish it from the range rings.
3. Operate the cursor pad t o place the VRM on the inside edge of the target.
4. Check the VRM readout at the bottom left
corner on the screen to find the rang e to the target.
To anchor the VRM on the screen, press the [MENU/ESC] key. To erase the VRM, press the [ALARM] key twice with the MARK MENU displayed.
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1. OPERATION
nm
6.0
2.0
Target
6.0
2.0
nm
Target
Cursor
VRM
Range, bearing and time-to-go to cursor location
VRM
range
EBL
VRM
- - - .-°
2.91
RNG 2.22nm
nm
BRG 45.62°
TTG 02H21M
How to measure the range with the
VRM and cursor

1.11 Measuring the Bearing

The bearing to a target can be m easur ed with the cursor and the EBL (Electronic Bearing Line).
Measuring bearing with the cursor
Operate the cursor pad to place the cursor on the inside edge of the target. Read the bearing to the target at t he bottom right corner.
Measuring bearing with the EBL
1. Press the [MARK] key to show the Mark menu.
MARK MENU
EBL
Cursor
Range, bearing and time-to-go to cursor location
EBL bearing
EBL 45.62
VRM
- - - -
RNG 2.22nm
°
BRG 45.62°
nm
TTG 02H21M
Measuring range by the EBL and cursor

1.12 Shifting the Display

Own ship position, or sweep origin, can be displaced manually or automatically to expand the view field without switching to a longer range. The default shift method is manual.
If shift is activated when nav data is displayed, the nav data is automatically erased.
1. Use the cursor pad to place the curs or where you want to shift own ship position.
2. Press the [MODE] key to show the Display Mode menu.
DISPLAY MODE
SHIFT (MANUAL)*
[GAIN] : EBL
[ALARM] : VRM
[MARK] : TLL OUTPUT
Mark menu
2. Press the [GAIN] key to show the EBL, which is a dashed line to distinguish it from the heading line.
3. Operate the cursor pad to bisect the target with the EBL.
4. Check the EBL readout at the bottom left corner on the screen to find the bearing to the target.
3. Press ▲ to choose SHIFT (MANUAL).
4. Press the [MENU/ESC] key to close t he
NORMAL
ZOOM
NAV DISP OFF ON
[MENU/ESC] : Exit
Display mode menu
Note: If SHIFT (AUTO) is shown, open the System menu and set SHIFT MODE to MANUAL. For further details, see SHIFT MODE on page 17.
menu.
To anchor the EBL, press the [MENU/ESC] key. To erase the EBL, press the [GAIN] key twice with the MARK MENU displayed.
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Choose manual SHIFT mode.
Select where to shift Shifted display with the cursor.
1. OPERATION
nm
6.0
2.0
Cursor
+
EBL
- - - .-°
VRM - - - -nm
Zoom Window
RNG 4.43nm BRG 231.3°
TTG: 02H21M
How the manual shift works
To cancel the shifted display, open the Display Mode menu, choose NORMAL and then press the [MENU/ESC] key.

1.13 Zoom

The zoom feature allows you to double the size of a selected area.
If zoom is activated when nav data is displayed, the nav data is automatically erased.
1. Use the cursor pad to place the cursor where you want to zoom.
2. Press the [MODE] key to show the display mode menu.
SELECT DISPLAY MODE
SHIFT (MANUAL)*
NORMAL
ZOOM
NAV DISP OFF ON
[MENU/ESC] : Exit
* AUTO may appear instead of MANUAL depending on shift method selected.
Display mode menu
3. Press ▼ to choose ZOOM.
4. Press the [MENU/ESC] key to close the menu. “ZOOM” appears at the top left corner when the zoom feature is turned on.
Zoom display
To cancel the zoom display, open the Display Mode menu, choose NORMAL and then press the [MENU/ESC] key. To choose new zoom location, return to the NORMAL mode and then repeat the zoom procedure.

1.14 User Menu Overview

The User menu, consisting of t hree pages of menus, contains 12 items which the user may set according to conditions.
1. Press the [MENU] key to open the User menu.
INT REJECTION LOW
P
ECHO STRETCH : LOW
*
FTC : OFF NOISE REJECTION: LOW
[MENU/ESC] : Exit.
* = "P" shows current function of PROG key
User menu, page 1
2. Use ▲ or ▼ to scroll the menu to display desired item in reverse video.
WATCHMAN TIME OFF
HUE : DAY PANEL DIMMER : OFF HDG LINE OFF
[MENU/ESC] : Exit.
ECHO TRAIL OFF
TRAIL BRILLIANCE : LOW TRIPLOG RESET? SYSTEM MENU...
[MENU/ESC] : Exit.
User menu, pages 2 and 3
(1/3)
Page 2
(2/3)
Page 3
(3/3)
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1. OPERATION
3. Press ► to show the options window for the item selected. For example, the illustration below shows the interference rejector options window.
OFF
LOW
MEDIUM HIGH
Interference rejector options
4. Press ▲ or ▼ to choose option desired.
5. Press ◄ to continue menu operation, or press the [MENU/ESC] key to register your selection and close the User menu.
User menu description
Item Description
INT REJECTION ECHO STRETCH
FTC Reduces rain clutter. NOISE REJECTION WATCHMAN TIME HUE Chooses echo and background
PANEL DIMMER HDG LINE OFF ECHO TRAIL Shows echo movement in
TRAIL BRILLIANCE TRIPLOG RESET? SYSTEM MENU
Rejects radar interference.
Stretches echoes in range direction or range and bearing direction.
Rejects noise.
Periodically checks for targets in guard zone.
tones. Adjusts panel backlighting.
Temporarily turns the heading line off.
afterglow. Adjusts echo trail brilliance.
Resets distance run.
Opens the system menu. For description see paragraph
1.30.

1.15 Heading Line

The heading line indicates the ship’s heading and it is the solid line which appears at zero degrees on the bearing scale.
To temporarily erase the heading line to look at targets existing dead ahead of own ship, do the following:
1. Press the [MENU/ESC] key to open t he User menu.
2. Press ▲ or ▼ to choose HDG LINE OFF from page 2.
3. Press ► to turn the heading line off. The line stays off while is pressed.
4. Press the [MENU/ESC] key to close t he menu.

1.16 Interference Rejector

Mutual radar interference may occur in the vicinity of another shipborne radar operating in the same frequency band (9 GHz). It is seen on the screen as a number of bright spikes either in irregular pat terns or in the form of usually curved spoke-like dotted lines extending from the center t o t he edge of the picture. This type of interference can be reduced by activating the interference rejector circuit. “IR” and the rejection level indicator “L,” “M” or “H” appear at the top right cor ner when the interference rejector circ uit is on.
Appearance of interference
Turn off the interference reject or when no interference exists, to avoid missing sm all targets.
1. Press the [MENU/ESC] key to open the
User menu.
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1. OPERATION
2. Press ▲ or ▼ to choose INT REJECTION from page 1.
3. Press ► to open the options window.
4. Press ▲ or ▼ to choose OFF, LOW, MEDIUM or HIGH as appropriate.
5. Press the [MENU/ESC] key to finish.

1.17 Noise Rejector

The noise rejector suppresses white noise, which appears on the screen as many dots scattered randomly over the display.
1. Press the [MENU/ESC] key to open the User menu.
2. Press ▲ or ▼ to choose NOISE REJECTION from page 1.
3. Press ► to open the options window.
4. Press ▲ or ▼ to choose OFF, LOW or HIGH as appropriate.
5. Press the [MENU/ESC] key to close the menu.

1.18 Echo Trail, Trail Brilliance

Echo trails are the afterglow of target echoes that represent their movements relat ive to own ship. They are useful for monitoring target movement.
TRAIL
Echo trails
1. Press the [MENU/ESC] key to open the User menu.
2. Press ▲ or ▼ to choose ECHO TRAIL from page 3.
Trail time
Echo trail
3. Press ► to open the options window.
OFF
30sec 1min 3min 6min CONTIN.
Echo trail options
4. Press ▲ or ▼ to choose appropriate time.
5. Press ◄ to close the options window.
6. Press ▼ to choose TRAIL BRILLIANCE.
7. Press ► to open the options window.
8. Press ▲ or ▼ to choose LOW or HIGH as appropriate.
9. Press the [MENU/ESC] key to close the
menu.

1.19 Echo Stretch

On long ranges target echoes t end t o shr ink, making them difficult to see. To enhance target video on long ranges, use the echo stretch feature.
1. Press the [MENU/ESC] key to open the
User menu.
2. Press ▲ or ▼ to choose ECHO
STRETCH from page 1.
3. Press ► to open the options window.
4. Press ▲ or ▼ to choose OFF, LOW or
HIGH as appropriate. LOW stretches echoes in the bearing direction; HIGH stretches echoes in the range and bearing directions. The display shows “ES L” or “ES H” at the top right corner depending on your selection.
5. Press the [MENU/ESC] key to close t he menu.
ES L ES H
Brg dir.
Rng dir.
Echo
Brg dir.
Echo Stretch Echo Stretch Echo Stretch OFF LOW HIGH
How echo stretch works
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1. OPERATION

1.20 Guard Alarm

The guard alarm allows the operator to set the desired range and bearing f or a guard zone. When ships, islands, landm asses, et c. violate the guard zone, the audio alarm sounds to call your attention. The alarm will sound on targets entering or exiting the zone depending on zone status after the alarm has been set.
NOTICE
The alarm should not be relied upon as the
*
sole means for detecting possible collision situations.
A/C SEA, A/C RAIN, FTC and GAIN controls
*
should be properly adjusted to be sure the weak echoes will not be missed by the alarm.
Setting a guard zone
How guard zone type is determined
After the guard zone is set, t he system checks for the existence of t ar gets inside the guard zone, which takes about 8 to 12 seconds. When the check is completed, “G(IN)” or “G(OUT)” replaces G(---) at the top right corner.
G(IN): When no targ et exists in t he zone, "G(IN)" appears. The audio alar m sounds against targets which enter the g uar d zone. G(OUT): If there are targets in the g uar d zone, "G(OUT)" appears. The audio alarm sounds against all targets which exit from t he guard zone.
1. Operate the cursor pad to place the cursor at the top left cor ner for the zone and then press the [ALARM] key.
2. Operate the cursor pad to place the cursor at the bottom right cor ner for the zone and then press the [ALARM] key.
Guard zone to set
Mentally create the guard zone to set.
G(---)
Guard zone
Drag cursor here.
1)Drag cursor to top left corner for zone and press [ALARM].
G(---)
G(---)
(a) Inward target alarm (b) Outward target alarm
Inward and outward alarms
Note: "UP RNG" replaces G(IN) or G(OUT) when the guard zone is not within the range in use. If this happens, change the range to redisplay the guard zone.
Silencing the audio alarm
When a target violates the guard zone, the target flashes and the audio alarm sounds. You can silence the audio alarm with the [ALARM] key.
Canceling the guard zone and guard alarm
Press and hold down the [ALARM] key until the guard zone is erased.
Drag cursor here.
Guard zone completed.
2)Drag cursor to bottom right corner for zone and press [ALARM].
How to set a guard zone
11
Page 19
1. OPERATION

1.21 Watchman

Watchman transmits the radar for one minute to check if a targ et has ent ered or exited the guard zone from the previous transmission. If no change is found, the radar g oes int o standby for the number of minut es set for the watchman feature. If change is found, the audio alarm sounds, watchman is canceled and the radar transmits. This feature is useful for extending the life of the magnetron.
Tx
1 min
Watchman starts
*
ST-BY
5,10 or 20 min
* Beeps emitted just before radar transmits.
Tx
1 min
ST-BY
5,10 or 20 min
*
How watchman works
1. Press the [MENU/ESC] key to open the User menu.
2. Press ▲ or ▼ to choose WATCHMAN TIME from page 2.
3. Press ► to open the options window.
OFF
5 min 10 min 20 min
Watchman time options
4. Press ▲ or ▼ to choose appropriate time
out, that is, the amount of time the radar waits in standby, among 5, 10 and 20 minutes.
5. Press the [MENU/ESC] key to close t he
menu.
1.22 Suppressing Long-range
Rain Clutter
In adverse weather, clouds, rain or snow produce spray-like spurious echoes which impair target detection over a long distance. These echoes can be suppressed by turning on the FTC.
1. Press the [MENU/ESC] key.
2. Press ▲ or ▼ to choose FTC from page
1.
3. Press ► to open the options window.
4. Press ▲ or ▼ to choose OFF or ON as appropriate.
5. Press the [MENU/ESC] key to close the menu.
“FTC” appears at the top right cor ner when the FTC is active.

1.23 Panel Backlighting

You may adjust panel backlighting as f ollows:
1. Press the [MENU/ESC] key to open the User menu.
2. Choose PANEL DIMMER from page 2.
3. Press ► to open the options window.
4. Choose OFF, LOW, MEDIUM or HIGH as appropriate.
5. Press the [MENU/ESC] key to close the menu.

1.24 Hue

The default hue setting ( DAY) displays echoes in tones of grey on a white background, which is most suitable for daytime viewing. For nighttime viewing you may reverse this arrangement. Note t hat the equipment always starts up with the default hue setting.
1. Press the [MENU/ESC] key to open the User menu.
2. Press ▲ or ▼ to choose HUE from page
2.
3. Press ► to open the options window.
4. Press ▲ or ▼ to choose DAY or NIGHT as appropriate.
5. Press the [MENU/ESC] key to close the menu.
12
Page 20
1. OPERATION

1.25 Resetting Distance Run

You may reset distance run to zero as below. You need a navigator or speed log to display distance run.
1. Press the [MENU/ESC] key to open the User menu.
2. Press ▲ or ▼ to choose “TRIPLOG RESET?” from page 3.
3. Press ► to open the options window.
4. Press ▲ to choose YES to reset distance run.
5. Press the [MENU/ESC] key to close the menu.

1.26 PROG Key

The [PROG] key acts as a menu shortcut key. You may use any User menu item except “TRIPLOG RESET?” and “SYSTEM MENU.”
Using the PROG key
1. Press the [PROG] key. The options
window corresponding to the item programmed appears. In the example below the echo stretch options window is shown.
ECHO STRETCH
OFF
LOW HIGH
Echo stretch options window
2. Press ▲ or ▼ to choose appropriate
option.
3. Press the [MENU/ESC] key to close t he
options window.
Programming the PROG key
1. Press the [MENU/ESC] key to open t he
User menu. “P” marks the current function of the [PROG] key.
INT REJECTION LOW
P
ECHO STRETCH : LOW FTC : OFF NOISE REJECTION: LOW
[MENU/ESC] : Exit.
(1/3)
User menu, page 1
2. Press ▲ or ▼ to choose the item you wish to use.
3. Press and hold down the [PROG] key (about three seconds) until you hear a beep. The “P” moves to the item selected.
4. Press the [MENU/ESC] key to close t he menu.
1.27 Outputting Target Position
to a Plotter
If the radar is interfaced with a plotter, you can output target position to t he plotter, and show that position on the plotter’s screen with the target mark (X). This function requires position and heading data.
1. Use the cursor pad to place the cursor on
a target.
2. Press the [MARK] key to show the Mark
menu.
MARK MENU
[GAIN] : EBL
[ALARM] : VRM
[MARK] : TLL OUTPUT
Mark menu
3. Press the [MARK] key again to out put cursor position.
4. Press the [MENU/ESC] key to close t he menu.
13
Page 21
1. OPERATION

1.28 Turning Navigation Data On/Off

Navigation data appears on the bottom half of the screen as in the illustration below. You may turn the navigation data display on or off as shown below.
Note: W hen the nav data is turned on with shift or zoom active, zoom or shift is cancelled.
1. Press the [MODE] key.
2. Press ► to choose ON; ◄ to choose
OFF.
3. Press the [MENU/ESC] key to close t he
menu.
nm
6.0
2.0
+
3. Press the [MENU/ESC] key to close t he window.
4. Press the cursor pad to display the nav data setup window.
Position
30° 00.065'N
130° 00.574'E
DATE
DATE
09 10 02
09 10 02
TIME
NAV DATA SETUP
14:25:03
/ : Window Selection
XTE
/ : Data Selection
0.25
[MENU/ESC] : Enter
1 0.5 0 0.5 1
nm
Dashed rectangle circumscribes selection
Nav data setup window
Nav data display with nav data setup window
4. Press ▲ or ▼ to choose the data window
to process. The dashed rectangle marks current selection.
5. Press ◄ or ► to choose item to display.
See the illustration below for the data availability. A description of the nav data displays appears on the next page.
Position
Position
Speed Course
10.2 kt 135°
EBL
- - -
.-
°
VRM - - - -nm
34°44.135 N 135°44.135 E
RNG 2.22nm BRG 45.62°
TTG 02H21M
Nav Data
Sample navigation display

1.29 Setting up Nav Data Displays

The user may arrange the nav data display as desired. You may display between two and four items and choose the item and the order to display them. For how to choose the number of items to display, see “NAV DATA” on page 16.
1. Turn on the nav data referring t o
paragraph 1.28.
2. Press the [POWER/BRILL] key
momentarily followed by the [MODE] key to go into standby.
2-item display
Nav data at stand-by
(1)
(2)
Nav data on radar display
(1) (2)
Items displayable in (1) - (3): depth, position, course, date, time, range and bearing, trip distance, odometer distance, water temperature, heading, time-to-go to destination waypoint, XTE*, speed*, wind speed and direction*, destination waypoint data*, compass*
Items displayable in (4) - (9): depth, position, course, range and bearing, trip distance, odometer distance, water temperature, date, time, speed, heading, air pressure, time-to-go to destination waypoint, XTE, wind speed and direction
* = Graphic display in standby
3-item display
(3)
(4) (5)
(3)
(4) (5)
4-item display
(6) (7)
(8) (9)
(6) (8)
(7) (9)
Nav data window and item displayable
5. Press the [MENU/ESC] key to close t he nav data setup window.
14
Page 22
1. OPERATION
GRAPHIC DISPLAYS DIGITAL DISPLAYS
XTE
0.25
1 0.5 0 0.5 1
XTE (Cross-Track Error) GRAPHIC
Speed
10
0
Wind APP*
60 90 120
Speed
nm
60
50
40
30
20
kt
SPEED GRAPHIC
0
30
120°
150
180
10.3
DIgital XTE
Analog XTE (Bar moves right or left according to XTE direction)
17.2
30
60
90
120
150
m/s
Speedometer
Wind direction
Wind speed
Depth
32.8ft
DEPTH
Position
30° 00.065'N
130° 00.574'E
POSITION
Speed
19.3kt
SPEED
Course
123.0
COURSE
Range
1.21nm
RANGE & BEARING**
°
Bearing
140
°
Temperature
69.8°F
WATER TEMPERATURE
Heading MAG#
318
HEADING
Wind Speed APP*
°
8.0m/s
WIND SPEED
Wind Direction APP*
138
WIND DIRECTION
Trip meter
°
121nm
TRIP DISTANCE
Destination waypoint data: Name, Range to, XTE
DESTINATION WAYPOINT GRAPHIC
Bearing to destination waypoint
WIND GRAPHIC
Waypoint 03 Rng 0.19nm Brg 321° XTE 0.00nm Cse 333°
1 0.5 0 0.5 1
COMPASS GRAPHIC
Brg
30°
N
Cse
90°
Bearing, Course
Destination waypoint direction
XTE scale
E
Course
* = APP or TRUE depending on menu
** =Range and bearing to destination waypoint # = MAG(netic) or TRUE. TRUE requires
Note: The graphic displays selected on the standby display are repeated on the radar display.
Nav data displays
Odometer
56nm
ODOMETER
TD
Time to Go
00H30M
TIME-TO-GO**
Time
31234.5
56432.6
LORAN C/DECCA TIME DIFFERENCES
Date
2002 SEP 19
DATE
setting. See WIND SPD/DIR on page 17 for description.
heading sensor.
14:25:03
TIME
XTE
0.24
1 0.5 0 0.5 1
CROSS-TRACK ERROR
nm
15
Page 23
1. OPERATION

1.30 System Menu

The System menu mainly contains items which once set do not require frequent adjustment. You may display this menu by choosing “SYSTEM MENU” from page 3 of the User menu and then pressing ►.
PAGE 1
PAGE 2
PAGE 3
SYSTEM MENU
LANGUAGE English
RANGE UNIT : nm DEPTH UNIT : ft SPEED UNIT : kt WIND UNIT : kt TEMP UNIT : °F NAV DATA : KEY BEEP : ON RINGS : OFF WAYPOINT MARK : OFF
[MENU/ESC] : Exit.
SYSTEM MENU
EBL REFERENCE TRUE
BEARING READOUT : TRUE CURSOR POSITION : RNG&BRG TRIP SOURCE : LAT/LON WIND SPD/DIR : APPARENT SHIFT MODE : MANUAL AUTO SHIFT SPEED : 15 TX SECTOR BLANK : OFF BLANKING START : 000° BLANKING AREA : 000°
LOCAL TIME SETUP : +0:00 ANTENNA SPEED : AUTO
[MENU/ESC] : Exit.
SYSTEM MENU
RANGE 0.125nm ON
0.25 nm : ON
0.5 nm : ON
0.75 nm : ON 1 nm : OFF
1.5 nm : ON 2 nm : OFF 3 nm : ON 4 nm : OFF 6 nm : ON 8 nm : ON
12 nm : ON 16 nm : ON
[MENU/ESC] : Exit.
(1/3)
Page no.
(2/3)
(3/3)
System menu description
Page 1 of system menu LANGUAGE: The system language is
available in English, several European languages and Japanese. To change the language, choose language desired, and then press the [MENU/ESC] key.
RANGE UNIT: Chooses the unit of range measurement among nautical miles, kilometers and statute miles.
DEPTH UNIT: Chooses the unit of depth measurement among meters, feet, fathoms, Hiro (Japanese) and Passi/Braza. Requires depth data.
SPEED UNIT: Chooses the unit of speed measurement among knot, mile per hour and kilometer per hour. Requires speed data.
WIND UNIT: Chooses the unit of wind measurement among mile per hour, kilometer per hour and meters per second. Requir es wind data.
TEMP UNIT: Chooses the unit of water temperature measurement from Celsius and Fahrenheit. Requires water temperature data.
NAV DATA: Chooses the amount of nav data to display among two, three and four item s. Requires appropriate sensors.
KEY BEEP: A beep sounds to confirm valid and invalid operation. You can turn this beep on or off.
RINGS: Turns the range rings on or off.
WAYPOINT MARK: The waypoint mark
shows the location a destination waypoint set on a navigator. You can tur n t his mark on or off. Requires a navigator.
System menu
16
Page 24
1. OPERATION
Waypoint mark
Waypoint mark
Page 2 of system menu EBL REFERENCE: The EBL readout may be
chosen from relative (relative to own ship’s heading) or true (ref erenced to the North). Heading data required f or true bearing.
Note: If no bearing dat a is input, course data from the GPS navigator is used. In this case ship’s speed must be more than two knots.
BEARING READOUT: Course indication may be shown in true or magnetic (magnetic compass) degrees. Heading data required for true degrees.
CURSOR POSITION: Chooses the information to show for the curs or posit ion: latitude and longitude or range and bearing from own ship. Latitude and longitude position requires a navigator.
TRIP SOURCE: Chooses the criteria fo r calculating distance run: latitude and longitude or speed. Requires navigator or speed log.
WIND SPD/DIR: True is the speed and direction (in relation to ship’s bow) of the wind felt or measured when stationary. Apparent is the direction (in relation to ship’s bow) and speed of the wind as it appears to those on board, relative to the speed and direction of the boat; combination of the true wind and the wind caused by the boat’s movement. Requires wind data.
SHIFT MODE: Own ship position, or sweep origin, can be displaced manually or automatically. For automatic displacement, the amount of shift is calculat ed with ship speed, and the amount is limited to 60% of the range in use. For example, if the “Auto Shift Speed” setting is 15 k nots and the ship is running at 10 knots, the am ount of shift will be about 40%. The formula for determining shift amount is as below. Requires speed data.
Ship’s speed Shift speed setting
X 0.6 = Amount of shift(%)
AUTO SHIFT SPEED: Sets the automatic shift maximum speed. The setting range is 1-99.
TX SECTOR BLANK: In some installations it may be unavoidable to locate the antenna where an object (mast, etc.) will prevent transmission within its breadth. You should disable transmission within this area by turning on this feature and setting the area with BLANKING START and BLANKING AREA below.
BLANKING START: Sets the starting point (000-359°) of the TX sect or blanking area.
BLANKING AREA: Sets the end point of the TX sector blanking area (000-135°).
LOCAL TIME SETUP: Enter time difference between local time and UTC time to use local time. Press or to set value.
ANTENNA SPEED: Chooses antenna rotation speed from 24 rpm and AUTO. Use AUTO to automatically change the antenna rotation speed (24-41 rpm) according to pulse length*. Choose “24 rpm” to rotate the antenna at 24 rpm regardless of pulse length.
* = Short pulse at high rotation speed; long
pulse at slow rotation speed.
Page 3 of system menu RANGE: Chooses the ranges to use.
17
Page 25

2. MAINTENANCE, TROUBLESHOOTING

WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
Only qualified personnel should work inside the equipment.

2.1 Maintenance

Regular maintenance is important for good performance. A maintenance program should be established and should at least include the items listed in the t able below.
Maintenance program
Period Item Check point Action
3 to 6 months
6 months to 1 year
Fixing bolts for antenna unit
Antenna unit cleanliness
Antenna unit cover
Display unit case, LCD
Display unit connectors
Check for corrosion and if tightly fastened.
Check for foreign material. (Foreign material on the antenna unit can cause a considerable drop in sensitivity.)
Check for cracks. Permanent damage to the unit’s circuitry will result if water leaks inside.
The LCD will, in time, accumulate a coating of dust which tends to dim the picture.
Check for tight connection and corrosion.
Replace corroded bolts. Coat new bolts with anticorrosive sealant.
Clean the antenna unit with a freshwater-moistened cloth. Alcohol may be used. Do not use commercial cleaners to clean the antenna unit; they can remove paint and markings or deform the equipment.
If a crack is found, it should be temporarily repaired by using a small amount of sealing compound or adhesive. The unit should then be brought to your dealer for permanent repairs.
Wipe the LCD carefully to prevent scratching, using tissue paper and an LCD cleaner. To remove dirt or salt deposits, use an LCD cleaner, wiping slowly with tissue paper so as to dissolve the dirt or salt. Change paper frequently so the salt or dirt will not scratch the LCD. Do not use solvents such as thinner , acet one or benzene for cleaning; they can remove paint and marks or deform the equipment.
If corroded, ask your dealer about replacement.
18
Page 26
2. MAINTENANCE, TROUBLESHOOTING

2.2 Replacing the Fuse

The fuse (5 A) in the power cable protects t he equipment against reverse polarity of ship’s mains, overcurrent, and equipment fault. If the fuse blows, find the cause before replacing it.
CAUTION
Use the proper fuse.
Use of a wrong fuse may cause serious damage to the equipment and void the warranty.

2.3 Troubleshooting

The table below provides simple troubleshooting procedures which the user can f ollow to restore normal operation. If you cannot restore normal operation contact your dealer for advice.
Troubleshooting
If… But… Then…
you pressed the [POWER/BRILL] key to turn on the radar
the radar has warmed up and you pressed the [MODE] key to transmit
a key is pressed nothing happens key may be faulty. Contact your
the display freezes Press the [MENU/ESC] key about
nothing appears on the display or display contrast is poor
the control panel does not light
the message “NO HEADING PULSE” or “NO BEARING PULSE” appears
neither noise or targets appear (characters and markers do)
• try adjusting LCD contrast.
• battery may have discharged.
• check if fuse has blown. adjust PANEL DIMMER on the
User menu. check that the antenna cable is
firmly connected.
try adjusting gain, A/C SEA and A/C RAIN.
check signal cable for damage.
dealer.
five seconds to turn off the power and then turn it on again.
19
Page 27
2. MAINTENANCE, TROUBLESHOOTING

2.4 Diagnostics

If you feel that your unit is not work ing properly, conduct the appropriate diagnostic test, display unit or antenna unit, to find the possible cause. If you cannot restore normal operation, contact your dealer for advice.
Display unit
1. Turn on the power while pressing and holding down the [MENU/ESC] key. Continue pressing the [MENU/ESC] key until the Installation menu appears.
INSTALLATION MENU
SIMULATION OFF
TEST ... LCD PATTERN ... MEMORY CLEAR
NMEA PORT : IN/OUT NMEA OUTPUT : OFF GPS WAAS : OFF
GOTO RADAR SETUP...
* The simulation provides internally
generated echoes, for use in exhibitions, etc. "SIM" appears at the top left corner when the simulation mode is active.
Installation menu
*
Interpreting display unit test results
Item Results
ROM, RAM
NMEA
Body Temperature of display unit
OK: Normal NG: No Good
Test connector required to test. Otherwise “- -” appears.
4. The squares at the right side of the test results display are for checking contr ols. Press each key and the arrows on the cursor pad one by one. A control’s corresponding on-screen square “lights” in black if the control is work ing properly.
5. To return to the Installation menu, press the [MENU/ESC] key three times.
6. To restore normal operation, turn off t he power and then turn it on again.
Antenna unit
1. Display the installation menu as in step 1 in the display unit diagnostic test.
2. Press ▼ to choose GOTO RADAR SETUP and then press . Power is automatically reset.
3. Press the [MENU/ESC] key. The menu below appears.
RADAR SETUP
SCANNER TEST ...
2. Press ▼ to choose TEST.
3. Press ► to start the test. In a few moments the results will appear.
ROM OK RAM OK NMEA - -
[MENU/ESC]: Exit.
Page 4/4 of user menu
4. Press ▼ to choose SCANNER TEST.
5. Press ► to start the test. In a few moments the results will appear, similar to those shown at the top of the next page.
6. To restore normal operation, turn off t he power and then turn it on again.
Body: 39°C
Program No. 0359193-**.** Push [MENU] 3 times to exit.
**.** = Program version no.
Diagnostic test results
20
(4/4)
Page 28
2. MAINTENANCE, TROUBLESHOOTING
ANTENNA STATUS : OK(47)# HEADING : OK BEARING : OK (24.0rpm)* TUNE :
TOTAL ON TIME : 00000h TO TAL TX TIME : 00000h
INPUT NMEA
RMA RMB RMC BWC GLL GGA
MTW VTG VHW XTE VBW DPT DBK DBS DBT HDT HDG HDM BWR GLC GTD MWV ZDA
[MENU/ESC]: Exit.
* 24.0 = Long range
31.0 = Medium range
41.0 = Short range
# = Status code. For service technician.
typical value
Antenna test results
The antenna unit and heading and bearing signals are checked, and the results shown as OK or NG (No Good). For any NG, contact your dealer for advice. Antenna unit RPM appears below the bearing signal test result .
The “TUNE” bar shows radar receiver tuning status. Total on time and total TX times appear below the TUNE bar.
Data sentences currently input to the radar are highlighted in the “INPUT NMEA” window.

2.5 Test Pattern

This feature tests for proper display of tones.
1. Turn on the power while pressing and holding down the [MENU/ESC] key. Continue pressing the [MENU/ESC] key until the Installation menu appears.
2. Press ▼ to choose LCD PATTERN.
3. Press ► to start the test. The entire screen is black.
4. Press the [MENU/ESC] key and the screen turns white.
5. Press the [MENU/ESC] key again and the screen shows a four-tone display.
6. Press the [MENU/ESC] key again to return to the Installation menu.
7. To restore normal operation, turn off the power and then turn it on again.
BLACK
Press [MENU/ ESC].
WHITE
Press [MENU/ ESC].
FOUR-TONE
Test patterns

2.6 Clearing the Memory

You may want to clear the memory to start afresh with default settings. You can do this as follows:
1. Turn on the power while pressing and
holding down the [MENU/ESC] key. Continue pressing the [MENU/ESC] key until the Installation menu appears.
2. Press ▼ to choose MEMORY CLEAR.
3. Press ►.
4. Press ▲ to choose YES.
5. To restore normal operation, turn the
power off and then turn it on again.

2.7 Replacing the Magnetron

When the magnetron has expired, distant targets cannot be seen on the display. When you feel long range performance has decreased, contact a FURUNO agent or dealer about replacement of the magnetron. (Type: E3588, Code No: 000-142-270)
2.8 Replacing the Synchro
Belt
When the synchro belt has worn out, t he sweep is not synchronized with antenna rotation, which results in an abnormal picture. When you suspect that t he synchro belt has worn out, contact a FURUNO agent or dealer about replacement. (Type: 40 S2M 266UG, Code No: 000-808-743)
21
Page 29

3. INSTALLATION

3.1 Antenna Unit Installation

Mounting considerations
When selecting a mounting location for the antenna unit keep in mind the following points:
Install the antenna unit on the hardtop, radar arch or on a mast on an appropriate platform. (For sailboats, a mounting bracket is optionally available.) It should be placed where there is a good all-round view with, as far as possible, no part of the ship’s superstructure or rigging intercepting the scanning beam. Any obstruction will cause shadow and blind sectors.
In order to minimize the chance of picking up electrical interference, avoid where possible routing the antenna cable near other electrical equipment onboard. Also, avoid running the cable in parallel with power cables.
Separate the antenna unit from a magnetic compass by the distances noted below to prevent interference to the magnetic compass:
Standard compass: 1.25 m Steering compass: 0.95 m
Mounting on a platform
1. Remove the mounting hardware at the bottom of the antenna unit: four each of hexagon head bolts (M10 x 20), spring washers and flat washers (4 pcs.). Save the mounting hardware to use it to fix the antenna base to the mounting platf or m .
Screws (one screw on other side)
Flat washer
Flat washer Spring washer Hexagon head bolt (M10 x 20)
Antenna unit, showing location of
mounting hardware
2. At the mounting location for the antenna unit, construct a platform (wood, steel, or aluminum) of 5–10 mm in thick ness on whose dimensions are as shown below Next, position the antenna unit on the platform so the cable entrance faces the stern direction and the vent tube is extending downward through the hole for the vent tube.
210
160
160
210
Dimensions in millimeters
Hole for vent tube (φ20 mm)
130
150
Fixing hole (φ11 mm)
BOW
Dimensions of antenna platform
Note 1: If corrosive material is used for the platform, be sure to take appropriate anti-corrosion measures.
Note 2: When drilling holes in the platform, be sure they are parallel with the fore and aft line.
22
Page 30
3. INSTALLATION
3. Using the hexagon head bolts, flat washers and spring washers removed at step 1, fasten the antenna unit to the platform. The torque should be 19.6-24.5 N
m. (If the thickness of the mounting
platform is greater than 10 mm, use longer hex bolts (M10 x 25), considering effective thread length from bottom of antenna unit.)
Antenna base
Effective thread length 16 mm
Flat
washer
Spring
washer
Hexagon head bolt (M10 x 20)
5-10 mm
Platform
How to fasten the antenna
unit to the platform
4. Unfasten three screws to open the cover.
Release the cable of the rotation detector from the cable clamp.
Shield plate
Antenna unit, cover removed, top view
6. Pass the antenna cable with connector through the gasket and cable clamp, and then tighten cable gland. Two gaskets are supplied: one gray, one black. Use the proper gasket according to antenna cable used, referring to the illustration below.
Gasket (See below for
Cable Gland
type to use.)
Discard this screw.
Rubber Gasket
Rotation detector
Cable clamp
Cable entrance
Antenna unit, cover removed, top view
5. Referring to the illustration at the top of the next column for location, unfasten 11 screws to dismount the shield plate. Discard the screw circled in the illustration.
67
φ
12
Use black gasket.
49
φ
11
Use gray gasket.
Antenna unit, top view
23
Page 31
3. INSTALLATION
7. Referring to the figure below, fasten the shield cable with a screw (M4 x 10) on the chassis to ground the unit.
Connect 9 pin connector here (J801).
Connect shield here.
How to connect the antenna cable
to the antenna unit
8. Attach the EMI core to the antenna cable. Set the EMI core fixing plate to the EMI core.
Pass the cable through the plate so the bend faces downward.
EMI core fixing plate
9. Connect the 9-pin connector of the antenna cable to J801. See the illustration above for location.
10. Refasten the shield plate with 10 screws. Be sure not to pinch the cable from the rotation detector with the shield plate.
11. Fasten the EMI core fixing plate with screw (supplied).
Screw (M4 x 15)
Mounting using the optional mounting bracket
A mounting bracket for fastening the antenna unit to a mast (70-125 mm diameter) on a sailboat is optionally available (Type OP03-93, Code 008-445-080).
Contents of mounting bracket kit
Name Type Code No. Qty
Bolt M4 x 12 000-804-725 4 Bolt M8 x 20 000-805-707 8 Mounting plate Support plate (1) Support plate (2) Bracket (1) 03-028-9101-0 100-206-810 1 Bracket (2) 03-028-9102-0 100-206-820 1 Fixing plate 03-028-9103-0 100-206-830 2
03-018-9001-0 100-206-740 1
03-018-9005-0 100-206-780 1
03-018-9006-0 100-206-790 1
1. Remove mounting hardware at the bottom of the antenna base. You may discard the mounting hardware.
2. Assemble the mounting bracket as below and fasten it to a mast.
3. Fasten the antenna unit to the mounting bracket with hexagon head bolts (M10 x 25, optional supply).
M8 x 20
Mounting plate
M8 x 20
Fixing plate
Bracket (2)
M8 x 20
(A) Assembling the mounting bracket
Bracket (1)
Support plate (2)
M4 x 12
Support plate (1)
Align bend with corner of chassis.
EMI Core Fixing Plate
EMI Core
How to fix the EMI core
12. Temporarily close the cover. You will need to open the cover later to confirm magnetron voltage.
24
M10 x 25
(B) Fastening antenna to mounting bracket
How to assemble the optional mounting
bracket and mount the antenna
Page 32
3. INSTALLATION
4. Unfasten three scr ews to open the cover.
5. Follow steps 5-12 in “Mounting on a platform.”

3.2 Display Unit Installation

Mounting considerations
When selecting a mounting location for the display unit keep in mind the following points:
Keep the display unit out of direct
sunlight.
The temperature and humidity should be
moderate and stable.
Locate the unit away from exhaust pipes
and vents.
The mounting location should be well
ventilated.
Mount the unit where shock and vibration
are minimal.
Mounting
The display unit can be mounted on a desktop or overhead or flush mounted in a console.
Desktop, overhead mounting
1. Fix the hanger to the mount ing location with four tapping screws (supplied).
2. Fit the knob bolts to the display unit.
3. Set the display unit to the hanger.
4. Tighten the knob bolts securely.
Flush mounting
Cutout a hole in the mounting area referring to the outline drawing at the back of this manual. Fasten the display unit with four screws (M4 x 20, supplied).
Keep the unit away from electromagnetic
field-generating equipment such as motors and generators.
For maintenance and checking purposes,
leave sufficient space at the sides and rear of the unit and leave slack in cables.
Separate the display unit from a magnetic
compass unit by the distances noted below to prevent interference to the magnetic compass:
Standard compass: 0.5 m Steering compass: 0.3 m
Be sure the mounting location is strong
enough to support the weight of t he unit under the continued vibration normally experienced on the boat.
25
Page 33
3. INSTALLATION

3.3 Wiring

Connect the antenna cable, the power cable and the ground wire as shown below.
Input sentences
NMEA 0183 Version 1.5/2.0/3.0, 4800 bps
Name Sentences
Ship’s Speed VTG>RMC>RMA>VBW>VHW Depth DPT>DBK>DBS>DBT Heading (T)* HDT>HDG>HDM Heading (M) HDM>HDG>HDT Course (T) RMC>RMA>VTG Course (M) VTG>RMA Waypoint RMB>BWR>BWC Own Ship Pos. GGA>RMC>RMA>GLL Time Diff. RMA>GLC>GTD Water Temp. MTW Time ZDA>RMC Wind Data MWV Cross-track
Error
XTE
*Requires magnetic variation (output by navigator).
Output sentence
Wiring
Connecting external equipment
A video sounder, navaid, wind indicator or GPS receiver GP-310(320B) can be connected to the display unit. You will need an NMEA cable to make the connection.
To connect two navigators, use the optional cable MJ-A15A7F0004-005. Connect them referring to the interconnection diagram at the back of this manual.
NMEA 0183 Version 3.0, 4800 bps
Name Sentence
Target L/L TLL
Connecting the external buzzer
The optional external buzzer (type XH3-BZ-L970, code no. 000-146-422) sounds the alarm buzzer in a remove location.
Note: This procedure requir es making a hole in the display unit, which can affect watertightness. FURUNO cannot guar antee watertight integrity after this modification is made.
1. Detach the rear panel and place it out side up on a workbench.
2. Use a hammer and a Philips head screwdriver to punch out a hole of ø16 at the location shown in the illustration at the top of the next page.
26
Page 34
Display unit, rear view
3. INSTALLATION
INSTALLATION MENU
SIMULATION OFF
TEST ... LCD PATTERN ... MEMORY CLEAR
NMEA PORT : IN/OUT NMEA OUTPUT : OFF GPS WAAS : OFF
GOTO RADAR SETUP...
3. Close the rear panel, making sure the gasket is correctly positioned.
4. Plug in the connector of the external buzzer to J6 on the DU Board.
5. Seal the hole with sealing compound.
6. Fix the buzzer to the location desired with two tapping screws.

3.4 Adjustments

After you have installed the radar, do the heading alignment and timing adj ust ment. If you are connecting external equipment, follow “NMEA port setup, GPS WAAS setup” (for GP-320B) also.
Heading alignment
You have mounted the antenna unit facing straight ahead in the direction of the bow. Therefore, a small but conspicuous t ar get dead ahead visually should appear on the heading line (zero degrees).
In practice, you will probably observe some small error on the display because of the difficulty in achieving accurate initial positioning of the antenna unit. The following adjustment will compensate for this er r o r.
1. Turn on the power while pressing and holding down the [MENU/ESC] key. Continue pressing the [MENU/ESC] key until the Installation menu appears.
Installation menu
2. Press ▼ to choose GOTO RADAR SETUP.
3. Press ►. Power is then reset.
4. Wait one minute, press the [POWER/BRILL] key and then press the [MODE] key to transmit.
5. Press the [MENU/ESC] key to show the User menu.
6. Press ► to show the Radar Setup menu.
RADAR SETUP
HEADING ADJUST
TIMING ADJUST SET ON TIME : 000000h SET TX TIME : 000000h
[MENU/ESC]: Exit.
Radar setup menu
7. HEADING ADJUST is selected; press to show the options window.
RADAR SETUP
HEADING ADJUST
TIMING ADJUST SET ON TIME : 000000h SET TX TIME : 000000h
[MENU/ESC]: Exit.
: YES : NO
Radar setup menu (heading adjust)
27
Page 35
3. INSTALLATION
8. Press ▲ to select YES, and the display now looks as below.
Heading Line
Message
HEADING LINE ADJUSTMENT BY ’ ’ AND ’ ’ KEYS. THEN PUSH MODE KEY TO SET.
Heading adjustment display
9. Visually identify a suitable target (for example, ship or buoy) at a range between 0.125 to 0.25 miles.
10. Point your boat’s bow directly toward the target selected at step 9.
11. Locate the target selected at step 9 on the display and choose a range which places it in the outer half of t he picture.
12. Press or to bisect the target with the heading line.
Target
Heading Line
Correct
Target pushed inward
Target pushed outward
Improper and correct sweep timing
1. Transmit on a range between 0.125 and
0.5 nm and adjust the sensitivity and A/C SEA. (See page 4 and 5 for procedure. )
2. Select TIMING ADJUST from the Radar Setup menu and press ►.
RADAR SETUP
HEADING ADJUST
TIMING ADJUST
SET ON TIME : 000000h SET TX TIME : 000000h
[MENU/ESC]: Exit.
: YES
: NO
Radar setup menu (timing adjust)
3. Press ▲ to choose YES, and the display
now looks as below.
Heading adjustment display
13. Press the [MODE] key.
14. Press the [MENU/ESC] key to return to the installation menu.
15. Move the boat towards a small buoy and confirm that the buoy shows up dead ahead on the radar when it is visually dead ahead.
Timing adjustment
Sweep timing differs with respect to the length of the antenna cable. Adj ust sweep timing to prevent pushing or pulling of the target as illustrated below and placement of targets at incorrect ranges.
Message
SWEEP TIMING ADJUSTMENT BY ’ ’ AND ’ ’ KEYS. THEN PUSH MODE KEY TO SET.
Timing adjustment display
4. Find a target which should be “straight” (harbor wall, straight pier) on t he radar display.
5. While looking at the target selected at step 4, straighten it by pressing or ▼.
6. Press the [MODE] key.
7. Press the [MENU/ESC] key to return to the installation menu to complete the procedure below, or shut off the power.
28
Page 36
NMEA port setup, GPS WAAS setup
The NMEA port can function as an input port or input/output port.
If you are using the GP-320B, turn on the GPS WAAS feature.
1. Show the Installation menu and then press to choose NMEA PORT.
2. Press ► to display the NMEA port options window.
3. Press ▲ or ▼ to choose IN/OUT or IN/IN as appropriate.
IN/OUT: Input and Output (default setting).
For GP-320B choose this setting.
IN/IN: Input only (Available with
connection of multiple navigators.)
4. If you selected IN/OUT at step 3, press ◄, to choose NMEA OUTPUT, and then press to display the NMEA OUTPUT options window.
5. Press ▲ or ▼ to choose OFF or ON. Choose ON to output input data. Choose OFF to not output data or if the GP-310B or GP-320B is connected.
6. Press ◄ to close the window.
7. If the GP-320B is connected, press ▼ to choose GPS WAAS. Otherwise, go to step 10.
8. Press ► to open the window.
9. Press ▲ to choose message type.
Note: WAAS is currently in the
developmental stage. While in the developmental stage choose message type 02. Change to message type 00 when WAAS becomes fully operational.
10. Turn off the power.

3.5 Magnetron Heater Voltage

Magnetron heater voltage is formed at the MD Board of the antenna unit and preadjusted at the factory. Therefore, no adjustment is required. However, verify heater voltage as below.
3. INSTALLATION
WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
DO NOT attempt the procedure below unless totally familiar with electrical circuits.
1. Open the antenna cover and remove the shield plate.
MD board (under shield plate)
Antenna unit, inside view
2. Turn on the power. DO NOT transmit.
3. Connect a multimeter, set to 10 VDC
range, between #6 (+) and #4 (-) of test point TP804.
TP804
VR801
MD board
4. Confirm that the multimeter shows 8.0 V
±0.1 V. If it does not, adjust potentiometer VR801 on the MD Board.
5. Turn off the power.
6. Refasten the shield plate.
7. Close the antenna cover.
29
Page 37

MENU TREE

MENU/ESC
key
Turn on power
MENU/ESC
key
+
POWER/BRILL
key
INT REJECTION (OFF, ECHO STRETCH ( FTC (
OFF
, ON) NOISE REJECTION (OFF, WATCHMAN TIME ( HUE (
DAY
, NIGHT) PANEL DIMMER (OFF, LOW, MEDIUM, HDG LINE OFF (Temporarily turns off heading line.) ECHO TRAIL ( TRAIL BRILLIANCE ( TRIPLOG RESET? SYSTEM MENU
SIMULATION ( TEST (Tests display unit.) LCD PATTERN (Displays test pattern.) MEMORY CLEAR (Restores default menu settings.) NMEA PORT ( NMEA OUTPUT ( GPS WAAS ( GO TO RADAR SETUP RADAR SETUP
OFF
OFF
IN/OUT,
OFF
LOW
, MEDIUM, HIGH)
OFF
, LOW, HIGH)
LOW
, HIGH)
OFF
, 5, 10, 20 min)
HIGH
)
, 30 s; 1, 3, 6 min, CONTIN.)
LOW
, HIGH)
LANGUAGE ( RANGE UNIT ( DEPTH UNIT ( SPEED UNIT ( WIND UNIT ( TEMP UNIT (°C, ° NAV DATA (OFF, , , ) KEY BEEP (OFF, RINGS (OFF, WAYPOINT MARK (OFF, EBL REFERENCE (TRUE, BEARING READOUT (TRUE, CURSOR POSITION (LAT/LON, TRIP SOURCE ( WIND SPD/DIR (TRUE, SHIFT MODE ( AUTO SHIFT SPEED (1-99 (kts), TX SECTOR BLANK ( BLANKING START (000-359°, BLANKING AREA (000-135°, LOCAL TIME SETUP (-13:30 - +13:30, ANTENNA SPEED (24rpm, RANGE nm, sm: km:
0.25, 0.5, 0.75
, ON, HIGH)
IN/IN)
OFF
, ON)
, WAAS 00-27)
ENGLISH
nm m kt
kt
, km/h, mph, m/s)
ON
MANUAL
0.125, 0.25, 0.5, 0.75
, JAPANESE, Others)
, km, sm) , ft, fa, HR, pb) , km/h, mph)
F
)
ON
)
)
ON
RELATIVE
LAT/LON
, 1,
, SPEED)
APPARENT
, AUTO)
OFF
, ON)
1.5
, 2, 3, 4, 6, 8, 12,
)
)
MAGNETIC
RNG&BRG
15
000
°)
000
°)
AUTO
)
, 1,
1.5
HEADING ADJUST (Adjusts heading.) TIMING ADJUST (Adjusts timing.) SET ON TIME (Displays total hours radar has been powered.) SET TX TIME (Displays total hours of transmission.)
)
)
)
)
0:00
)
, 2, 3, 4, 6, 8, 12, 16)
16, 24
)
SCANNER TEST (Tests antenna unit.)
MN-1
Page 38
SPECIFICATIONS OF MARINE RADAR
MODEL 1623
1 GENERAL
1.1 Indication System PPI Daylight display, raster scan, 4 tones in monochrome
1.2 Range, Pulselength (PL) & Pulse Repetition Rate (PRR) Range (nm) 0.125, 0.25, 0.5, 0.75 1, 1.5, 2 3, 4, 6, 8, 12, 16 Pulse Length Pulse Repetition Rate 3000 Hz nominal 1200 Hz nominal 600 Hz nominal
1.3 Range Resolution 16 m
1.4 Bearing Discrimination 6.7°
1.5 Minimum Range 22 m
1.6 Bearing Accuracy Within 1°
1.7 Range Ring Accuracy 1.0 % of range or 8 m, whichever is the greater
2 SCANNER UNIT
2.1 Radiator Micro-strip
2.2 Polarization Horizontal
2.3 Antenna Rotation Speed 24/31/41 rpm nominal (auto-select according to range)
2.4 Radiator Length 34 cm
2.5 Horizontal Beamwidth Less than 6.2°
2.6 Vertical Beamwidth 25°
2.7 Sidelobe Attenuation Less than -20 dB
0.08 µs (short) 0.3 µs (medium) 0.8 µs (long)
3 TRANSCEIVER MODULE
3.1 Frequency 9410 MHz ±30MHz (X band)
3.2 Modulation P0N
3.3 Peak Output Power 2.2 kW
3.4 Modulator FET Switching Method
3.5 Intermediate Frequency 60 MHz
3.6 Tuning Automatic
3.7 Receiver Front End MIC (Microwave IC)
3.8 Bandwidth 15 MHz (short pulse), 5 MHz (medium/long pulse)
3.9 Duplexer Circulator with diode limiter
3.10 Time of Heat-up 1-min. approx.
4 DISPLAY UNIT
4.1 Picture Tube 6” rectangular monochrome LCD
4.2 Display Pixels 240(H) x 320(V) dots, Effective radar display area: 240x240 dots
SP - 1 E3510S01C
Page 39
4.3 Range, Range Interval, Number of Rings
Range (nm/km) 0.125 0.25 0.5 0.75 1 1.5 2 3 4 6 8 12 16 24 Ring Interval 0.0625 0.125 0.125 0.25 0.25 0.5 0.5 1 1 2 2 3 4 6 Number of Rings 2 2 4 3 4 3 4 3 4 3 4 4 4 4
Range unit: nm/sm/km s electable, 0.125: nm/sm only, 24: km only
4.4 Markers Heading Line, Bearing Scale, Range Rings,
Variable Range Marker (VRM), Electronic Bearing Line (EBL), Tuning Bar, Cursor, Parallel Cursor, Alarm Zone, Waypoint Mark *, North Mark*
4.5 Alphanumeric Indications Range, Range Ring Interval, Display Mode (HU),
Interference Rejection (IR), Variable Range Marker (VRM), Electronic Bearing Line (EBL), Stand-by (ST-BY), Guard Alarm (G (IN), G (OUT), UP RANGE), Echo Stretch (ES), Range and Bearing to Cursor, Bearing or L/L Position, Echo Tailing (TRAIL), Trailing Time, Trailing Elapsed Time, Watchman (WATCHMAN), Zoomed Display (ZOOM), Navigation Data*, Heading* (HDC) *: external data required
4.6 Input Sentences IEC61162, NMEA0183 (Ver1.5/2.0)
GGA, RMC, RMA, GLL, VTG, VBW, VHW, HDT, HDG, HDM, BWR, BWC, GLC, GTD, DPT, DBK, DBS, DBT, MTW, ZDA, MWV, XTE
4.7 Output Sentences IEC61162, NMEA0183 (Ver3.0)
TLL (by key operation)
5 ENVIRONMENTAL CONDITION
5.1 Ambient Temperature Scanner Unit: -25°C to +70°C, Display Unit: -15°C to +55°C
5.2 Relative Humidity 95 % or less at +40°C
5.3 Waterproofing Scanner Unit: IPX6,
Display Unit: IPX5 (IPX0 when an external buzzer installed)
5.4 Bearing Vibration IEC60945
6 POWER SUPPLY
12-24 VDC: 3.3-1.4 A
7 COATING COLOR
7.1 Display Unit N3.0
7.2 Scanner Unit Cover: N9.5, Bottom: 2.5PB 3.5/10
8 COMPASS SAFE DISTANCE
8.1 Display Unit Standard: 0.50 m Steering: 0.30 m
8.2 Scanner Unit Standard: 1.25 m Steering: 0.95 m
SP - 2 E3510S01C
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Oct. 2, '02
D - 1
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Oct. 2, '02
D - 2
Page 43
Oct. 10,'02
D - 3
Page 44
Oct. 10,'02
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