Furuno 1623 User Manual 2

MARINE RADAR
MODEL 1623
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 *

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

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

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

SYSTEM CONFIGURATION

iv

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

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.
1

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.
2
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.
9
3
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
4
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.
5
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.
6
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.
7
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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