JRC J-NAV 500, NWZ-4551 Instruction Manual
INSTR UCTION MANUAL
GPS NA VIGAT OR
NWZ-4551
MODE
MENU
MOB
DIM
CONT
CLR
PWR
EVENT
GOTO
OFF
OFF
PUSH
GPS NAVIGATOR
GPS Navigator J-NAV500
General Information
Thank you for purchasing the GPS Navigator J-NAV500. This navigator obtains position data
from a GPS/DGPS receiver and can shows all types of marine navigation displays.
• Before attempting to operate this unit, read this instruction manual thoroughly to correctly and safely
operate this unit in accordance with the warning instructions and operation procedures in this manual.
• Keep this instruction manual in an easily accessible location so that you can refer to it in the event of
a failure or other problem.
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GPS Navigator J-NAV500
Before you begin
Related symbols
In this manual, and on the equipment, there are several labels to call your attention to important items that, if not handled correctly, could present danger to yourself or property. The
labels used and their meaning are described below.
Read through the safety instructions and make sure you fully understand them before you
read the rest of the manual.
WARNING
CAUTION
Symbol examples
Equilateral triangles alert the user to a possible danger (danger or warning) that
may be caused by wrongful operation or misuse of this product.
The symbol inside the triangle graphically represents the actual danger. (The
example on the left warns the user of the danger of electric shock.)
White circles with a 45¡ slash angled downward from upper left to lower right
notifies the user that specific actions are prohibited to prevent possible danger.
The symbol inside the circle is a graphical representation of the actual prohibited
action. (The example on the left notifies the user that disassembly is prohibited.)
Disassembly
prohibited
Dangerous
voltage
Prohibition
Indicates a situation which, if not avoided, could result in
death or serious injury and is extremely likely to cause
minor injury or property damage.
Indicates a situation which, if not avoided or handled
correctly , may result in injury or property damage, but not
likely to lead to serious personal injuries.
Black filled-in circles instruct the user to carry out a specific obligatory action to
Remove plug!
Instruction
prevent possible danger.
The symbol inside the circle is a graphical representation of the actual action to
be carried out. (The example on the left instructs the user to remove the plug from
the outlet.)
2
Safety Precautions
WARNING
Do not disassemble or modify this unit. Otherwise, a fire,
an electrical shock, or a failure may occur.
Do not remove or insert the power cable with wet hands.
Otherwise, you may suffer from an electrical shock.
GPS Navigator J-NAV500
Do not use voltage other than 12 VDC.
Otherwise, a fire, an electrical shock, or a failure may
occur.
Do not fray, damage or modify the power cable. When a
heavy object is placed on the cable or the cable is heated,
pulled, or forcibly bent, the cable will be broken resulting in
a fire or an electrical shock.
Do not operate this unit while you are also steering the vessel as this may lead to an accident.
In the event that smoking or burning odors are detected,
immediately terminate operation of the set and contact
our company , branch, or local of fice. Continuing operation as is may cause a fire or electrical shock. Never
attempt to service the interior of this set.
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GPS Navigator J-NAV500
This unit does not automatically assess position information. It is the user’s responsibility to judge position and navigational information.
Do not drop this unit into water. When water enters the unit,
a failure may occur.
CAUTION
When removing the power cord, be sure to remove the
power cord terminal correctly . If the power cord is pulled,
the cord may be damaged resulting in a fire or an electrical
shock.
When cleaning the surface, do not use any organic
solvent such as thinner or benzine, Otherwise, the
painting on the surface may be damaged.
For cleaning the surface, remove the dust and grease
with clean dry cloth.
See “List of Offices” on the back cover of this instruction manual for information on addresses and
telephone numbers of sales departments, subsidiaries, branch offices and service centers of Japan Radio
Co., Ltd.
4
Outside View
GPS Navigator J-NAV500
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GPS Navigator J-NAV500
Contents
General Information .............................................................................. 1
Before you Begin................................................................................... 2
Safety Precautions ................................................................................ 3
Outside View ......................................................................................... 5
Definition of Terms ................................................................................ 8
1. Overview..................................................................................... 10
1.1 Functions ................................................................................................................ 10
1.2 Features .................................................................................................................. 11
1.3 Equipment supplied................................................................................................ 1 1
1.4 Structure ................................................................................................................. 12
1.5 Equipment connections .......................................................................................... 12
2. Names and Functions of Parts ................................................... 13
2.1 Operation panel ...................................................................................................... 13
2.2 Rear panel............................................................................................................... 15
3. Installation................................................................................... 16
3.1 Display installation................................................................................................. 16
3.1.1 Choosing the location.................................................................................. 17
3.1.2 Mounting the unit ........................................................................................ 17
3.2 Cable connections .................................................................................................. 19
3.2.1 GPS/DGPS receiver connection ................................................................. 19
3.2.2 Power cable connection .............................................................................. 19
3.2.3 Ground connection ...................................................................................... 21
3.3 EMC Installation & service guidelines................................................................... 22
3.3.1 Installation................................................................................................... 22
3.3.2 Check Before Going to Sea......................................................................... 22
3.3.3 Servicing and Safety ................................................................................... 22
4. Operation .................................................................................... 23
4.1 Overview ................................................................................................................ 23
4.2 Turning the unit on/off............................................................................................ 24
4.3 Selecting display language ..................................................................................... 25
4.4 Switching between Main Display Modes ............................................................... 26
4.5 Main Display Modes .............................................................................................. 28
4.5.1 POSITION display mode ............................................................................ 28
4.5.2 NAVIGATION display mode ...................................................................... 32
4.5.3 CDI display mode ....................................................................................... 32
4.5.4 PLOT display mode and setting the plot scale............................................ 33
4.5.5 WAYPOINT display mode.......................................................................... 34
4.5.6 ROUTE display mode ................................................................................. 34
4.5.7 STA TUS/SF display mode .......................................................................... 35
4.6 Basic menu selection operations ............................................................................ 37
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GPS Navigator J-NAV500
4.7 Adjusting Contrast and Backlighting ..................................................................... 39
4.8 Setting Alarms (Arrival/Anchor/Off-course/DGPS) .............................................. 39
4.9 Navigation using direct route (GOTO)................................................................... 41
4.10 Navigation according to route plan ........................................................................ 42
4.11 Entering current position as a waypoint [EVENT] ................................................ 43
4.12 Man-Overboard Mode............................................................................................ 44
4.13 Position Display Mode/Position Correction/Geodetic System Correction/
Magnetic Compass Correction ............................................................................... 44
4.14 Setting Navigation Display Modes and Units ........................................................ 46
4.15 Setting CDI range and Display Time Format ......................................................... 47
4.16 Setting Plotting Information ................................................................................... 47
4.17 Entering W aypoints ................................................................................................ 48
4.17.1 Editing W aypoint Lists................................................................................ 48
4.17.2 Storing waypoints........................................................................................ 50
4.17.3 Erasing, copying and measuring waypoints ................................................ 52
4.17.4 Sorting waypoint list ................................................................................... 54
4.18 Setting Route Plans ................................................................................................ 54
4.18.1 Making a route plan .................................................................................... 55
4.18.2 Editing route plan........................................................................................ 56
4.18.3 Erasing route plans...................................................................................... 57
4.19 Setting GPS information......................................................................................... 58
4.19.1 Setting positioning mode and averaging time ............................................. 58
4.19.2 Initializing GPS/DGPS receiver.................................................................. 59
4.19.3 TD initializing ............................................................................................. 60
4.19.4 Setting DGPS beacon.................................................................................. 61
4.20 Setting Data Output and transmit memory data...................................................... 62
4.21 Displaying the Simulator Mode.............................................................................. 64
4.22 Performing Master Reset........................................................................................ 65
5. Maintenance and Inspection....................................................... 66
6 After-sales Service...................................................................... 67
7. Disposal ...................................................................................... 68
7.1 Disposal of Navigator............................................................................................. 68
7.2 Handling Used Lithium Batteries ........................................................................... 68
8. Specifications.............................................................................. 69
Appendices ......................................................................................... 71
Appendix A Message list .............................................................................................. 71
Appendix B Geodetic system Table.............................................................................. 73
Appendix C NMEA0183 output sentence and data format........................................... 75
Appendix D Waypoint/Route Plan Data In/Output ....................................................... 80
Appendix E Waypoint List ............................................................................................ 81
How to address inquiries List of Offices Back Cover
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GPS Navigator J-NAV500
Definition of Terms
GPS satellite GPS stands for “Global Positioning System.” One of several
satellites launched by the US Department of Defense to establish a military navigational aid system.
DGPS The process of correcting the inaccuracies of GPS position data
from GPS satellites by receiving a beacon receiver (via a beacon station) in a base station whose exact position is known.
Position fixing The process of deriving the current location of a vessel using
GPS or DGPS receiver.
2D (two-dimensional) Position fixing using satellites and height information.
3D (three-dimensional) Position fixing using satellites information only from four or
more satellites
HDOP Indicates the accuracy of position fixing. The smaller the num-
ber shows the more accurate the position fixing.
When the satellites are grouped together, HDOP increases and
position fixing accuracy is poor; when the satellites are far apart,
HDOP decreases and position fixing accuracy is enhanced.
Loran C time difference Information for deriving current position by calculating the time
difference between a master station and secondary station of the
Loran C system. (Information designed for users experienced
in the use of the Loran C navigation system)
TD Time difference. The time difference between a master station
and secondary station of the Loran C system.
Route plan A plan that registers a series of waypoints in a navigational path.
CDI Course Deviation Indicator. Information that indicates the ex-
tent you have strayed from the route of deviation and the direc-
tion to steer.
Arrival alarm An alarm indicating that the vessel has come within the set dis-
tance of a waypoint.
Anchor alarm An alarm indicating that the vessel has deviated more than the
set distance from a waypoint.
Off-course alarm An alarm indicating that the vessel has deviated more than a set
distance from a predetermined course.
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GPS Navigator J-NAV500
Automatic sequencing mode Function that automatically steps from one waypoint to the next
when the arrival perpendicular point has been detected.
Manual sequencing mode The unit sounds the arrival alarm and the operator will manually
press key to step to next leg in the route plan when it is safe to
do so.
Default value Factory set value
NMEA0183 National Marine Electrical Association 0183. Association es-
tablishing international standards for communications between
navigational equipment and the standard established by NMEA.
Master reset A function for clearing all settings and returning to the factory
set values (default values). Two types of master resets are pro-
vided. A soft reset clears all data except for waypoint and route
plan data. A hard reset clears all data.
Initialization It takes up to 20 minutes to GPS position fixing when it is used
for the first time or after a master reset has been performed.
This time can be reduced by entering initialization values such
as estimate position, time and antenna height.
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GPS Navigator J-NAV500
1. Overview
1.1 Functions
Attaching an optional GPS/DGPS receiver (GPS 100 or DGPS 200) makes it possible to turn the GPS
Navigator J-NAV500 into a GPS/DGPS navigational system. This navigational system uses GPS satellites to calculate accurate positions anywhere in the world and under any weather conditions 24 hours
a day. This navigator displays navigational paths to entered waypoints using position data. There are
the following four navigation displays:
• POSITION Displays the latitude and longitude of the current position. It also dis-
plays the bearing and distance to a waypoint, course, speed, etc. and
the Loran C time difference.
• NAVIGATION Displays the bearing and distance to a waypoint, deviation and correct
steering direction to the route, and time to arrival to a destination.
Selections can be made to display the desired information.
• CDI Displays a graphic representation of course deviation. It also displays
correct steering direction, course and speed.
• PLOT Displays a graphic representation of the route line, the tracked line and
waypoints. W aypoints are indicated by symbols or alphabetic characters.
There is also a [STATUS] display showing status information such as satellite number, beacon frequency and receiving level.
A total of 499 waypoints and 20 route plans can be entered in the navigator. A single press of the
key can turn any current location into a waypoint. Someone should fall overboard, press the
key for an instant graphic representation of that position and the route to return to this position.
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GPS Navigator J-NAV500
1.2 Features
This navigator is equipped with the following features.
• Large backlit dot matrix liquid crystal display
The large display makes it easy to view the information provided by the many display modes. The
backlit keyboard keys facilitate night operation.
• Graphic representation
The CDI display mode allows you to get the direction to steer at a glance, supports safe navigation
and saves fuel.
The plot display mode displays the symbols registering the route and each waypoint.
• Menu driven easy operation
The display menus facilitate operation by showing what to do next. Menu selections and data
entry are performed with an easy-to-use dial.
• Customize
The great number of features provided makes it possible to customize functions and build your
own navigation system.
• One-touch removal and installation
The display can easily be removed or installed by pressing the button on the rear panel.
• Support for seven display languages is provided.
1.3 Equipment supplied
The table below lists items that are included with your J-NAV500. If an item is missing, contact your
JRC dealer for assistance.
Item Description Q'ty Remarks
Display unit NWZ-4551 1
Bracket MPBX35850 1 Included with the navigator
Power cable CFQ-8410 1 Length 1.8 m, with a fuse (2 A)
Fuse MF60NR-2A 1 Spare fuse (2A)
T apping screws MPTG30149 1 4 pcs.
Instruction manual DC50-NWZ-4551 1 English
The following optional accessories are also available.
Flush mount kit: MPTG30432
DGPS receiver: DGPS200
GPS receiver: GPS100
24 VDC power supply unit: NBG-121
AC power supply unit: NBG-122
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GPS Navigator J-NAV500
1.4 Structure
The outside view of the display unit is shown below .
74
11721
138
46.5 104
197
1.5 Equipment connections
Equipment connections are shown below .
MOB
PUSH
GOTO
EVENT
CLR
DIM
OFF
MODE
MENU
CONT
46.5
Figure 1-1
PWR
OFF
28 96
124
UNIT : mm
WEIGHT : Less than 0.9kg
GPS/DGPS receiver
(optional GPS 100 or DGPS 200)
12 VDC power/input Data I/O
(Power cable supplied)
To vessel ground
12
Figure 1-2
MODE
MENU
MOB
CONT
DIM
EVENT
CLR
OFF
PUSH
GOTO
PWR
OFF
2. Names and Functions of Parts
2.1 Operation panel
The illustration shows the keys on the operation panel and their functions.
GPS Navigator J-NAV500
Figure 2-1
PUSH
MODE
1
2
MENU
MOB
GOTO
EVENT
3
4
5
CONT
DIM
CLR
OFF
PWR
OFF
6
7
9
8
No.
1
2
Name Function
Mode
Dial
Down Up
ENT (Press dial)
• Press this key in mode exept [ MOB ] to select main display mode.
• Press this key in the [ Select Mode ] display to return to previous
display mode.
• Turn to select menu. (Turn dial counterclockwise to scroll downward and turn it clockwise to scroll upward.)
• Selects menu items.
• Sets numeric values when menu items are numeric entry. (The
numbers change faster, when the dial is turned faster.)
• Press the dial to select a menu or to enter a setting.
• When following a route sequence manually, use the dial to step
the next waypoint.
This function is available in the following display modes:
[POSITION]. [NAVIGATION]. [CD] displays
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GPS Navigator J-NAV500
No. Name Function
3
4
5
6
GOTO
Event
Power
Displays the menus for each display mode.Menu
Use this key to select to destination (see Section 4.9, “Navigation
using direct routes (GOTO).” This key function is available in the
following display modes:
[ POSITION ] , [ NAVIGATION ] , [ CDI ] and [ PLOT ] displays
Registers the current position (buoy or fishing point) as a waypoint.
This key function is available in the following major display modes:
[ POSITION ] , [ NAVIGATION ] , [ CDI ] , [ PLOT ] and [ MOB ]
displays.
Turns on the power.
• Press this key and the key to turn off the power.
• Press this key while holding down the
soft reset.
key to perform a
Soft reset: All registered data except waypoints and
route plan are set to the default V alues (factory
settings).
7
8
9
Clear
Contrast
MOB
• Resets items before the dial was pressed.
• In the Select Mode display , press this key to return to the previous
display.
Adjusts contrast and brightness of the backlight. This key function
is available in all display modes.
Man overboard (position where a person fell overboard). This key
function is available in all display modes. (To return to previous
display mode, press this key for 3 seconds.)
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2.2 Rear panel
GPS Navigator J-NAV500
10
GPS/DGPS
11
DC PWR/DATA
12
E
13
Figure 2-2
No. Name Function
10
11
12
13
GPS/DGPS
DC PWR/DATA
E terminal
Press this button to remove the display unit from the bracket.Release button
Connector for GPS or DGPS receiver (GPS 100 or DGPS 200)
Connects supplied power cable.
(Includes data I/O lines)
Terminal for connecting to vessel ground.
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GPS Navigator J-NAV500
3. Installation
3.1 Display installation
CAUTION
Install this unit at least 1 meter away from a magnetic compass. Otherwise, the unit
may cause the compass to indicate unreliably .
3.1.1 Choosing the location
When choosing a location to mount this unit, please consider the following two criteria for the site.
• The best location to provide ease of operation and viewing of the unit.
• The best location to provide protection from environmental elements. A void locations exposed
to direct sunlight and salt spray . Also avoid improperly ventilated locations and places exposed
to high temperatures.
The unit can be screw-mounted on a chart tabletop. Figure 3-1 shows the mount of free space required
around the unit.
UNIT : mm
10
10
Tabletop
Figure 3-1
Make sure that these space requirements are met.
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GPS Navigator J-NAV500
3.1.2 Mounting the unit
CAUTION
When installing this unit on a tabletop, use the designated screws to secure the bracket
to a stable wooden surface. Otherwise, the unit could fall and it may cause human
injury or property damage.
Mount the unit according to the following steps.
(1) Determine the mounting location of the unit and mark the holes of the four screws. Figure 3-2
shows the distance between the holes.
(2) Press the release button to remove the unit from the bracket. (See fig. 3-3)
(3) Secure the bracket to the mounting location with the four supplied tapping screws.
(4) Mount the display unit to the bracket. Make sure that the display unit is firmly attached to the
bracket.
(5) Adjust the unit to the best viewing angle. (See fig. 3-4)
74.2
84
Figure 3-2 Bracket dimensions
UNIT : mm
Figure 3-3
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GPS Navigator J-NAV500
Figure 3-4
As shown below, an optional flush mount kit can be used to wallmount the navigator. For information
on mounting, refer to the instruction manual supplied with the kit.
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3.2 Cable connections
The connectors on the rear panel are shown in Figure 2-2.
CAUTION
When the GPS/DGPS receiver has been installed, route the surplus cable from the
receiver at a distance of 30 cm or more from this unit to prevent interference from
occurring in other communication devices.
GPS Navigator J-NAV500
3.2.1 GPS/DGPS receiver connection
The unit provides with a 12 VDC power supply for a GPS/DGPS receiver (GPS 100 or DGPS 200).
The GPS/DGPS receiver operates when the unit is turned on, and it displays current position and other
GPS status informations received from satellite signals.
Connection procedure:
Connect the GPS/DGPS receiver cable to the GPS/DGPS connector on the rear panel of the unit.
3.2.2 Power cable connection
WARNING
When the equipment is used with a “floating” battery , do not touch the ground connector on this unit and vessel ground simultaneously . Otherwise, you may suffer from a
electrical shock.
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GPS Navigator J-NAV500
Do not connect this unit and the GPS/DGPS receiver to ground when used with a
“floating” battery. Should they be connected to ground, large current will flow from this
unit or the GPS/DGPS receiver to ground and could cause fire or equipment breakdown.
When the data signal cables are not to be used, insulate the cable ends using
insulation tape to prevent cable short-circuit. Otherwise, the equipment may be
damaged.
Connect the red cable to the plus terminal and the black cable to the negative terminal
of the 12 VDC power supply . Note that reversing the cables could lead to equipment
damage.
CAUTION
Use only a fuse with the designated rating. Use of other fuses could lead to fire or
breakdown.
Model ; MF60NR-2A
Figure 3-5 is a power cable wiring diagram. The power cable include the following wires: +12 VDC,
-12 VDC, DATA COM, DATA OUT+ and DATA IN+. Each wire is labeled.
White
Make indicating pin 1 location
5
4
1
2
Fuse 2A
3
Green
Yellow
Red
Black
DATA IN+
+12 VDC
–12VDC
DATA COM
DATA OUT+
Figure 3-5
The unit is intended for use on vessels with 12 VDC power systems and can operate as long as the DC
supply is maintained between 10.8 and 16 volts. The DC power system can be negative ground or can
be used without a ground connection in a ÔfloatingÓ power supply .
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GPS Navigator J-NAV500
However, the unit cannot be used on positive ground vessels.
Power lead connections
1. Connect the black -12 VDC power cable to the negative pole of the vessel battery.
2. Connect the red +12 VDC power cable to the positive pole of the vessel battery.
3. Firmly connect the power cables in the DC PWR/DATA connector on the rear panel of the unit.
• On a large ship, connect the power cable leads to the DC distribution board. Since a 2 A fuse is
used in the unit, connect it to a circuit breaker with 3 A or greater capacity .
• On a small ship, connect the power cables directly to the main battery insulation switch or breaker .
• Connect the unit to it’s own circuit breaker. Do not connect it to a circuit breaker also used for radar
and other equipment.
• To avoid electromagnetic interference, route the wiring of the unit as much as possible away from
other equipment.
• The power consumption of the unit is 6 watts when a GPS/DGPS receiver is connected; since line
loss becomes a problem at lengths of 3 meters or more, thicker cable has to be used. Use #12
AWG for cable length between 6 to 12 meters.
Data signal cable connections
The DATA OUT+, DATA IN+ and DATA COM signal cables can be used to connect to external
equipment using serial data connections. NMEA0183 sentences are output at all time.
Data signal cable connections
• Connect the DATA OUT+ (yellow), DATA IN+ (white) and DATA COM (green) cables to the
serial port of external equipment.
3.2.3 Ground connection
To connect to a beacon receiver with a whip antenna, a ground connection is required to improve
receiving performance. If the ship’s battery is a connected to negative ground, you can ground the
equipment using the hull of the vessel. If the ship’s battery is not connected to ground, use an insulating
DC-DC converter between the battery and the navigator before making a ground connection.
(Use an NBG-121 insulating converter for a 24 VDC battery.)
• Connect the E terminal on the back of the unit to the nearest vessel ground. Use #10 AWG or
thicker cable.
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GPS Navigator J-NAV500
3.3 EMC INSTALLATION & SERVICE GUIDELlNES
IMPORTANT NOTE
All JRC equipment and accessories are designed to the best industry standards for use in the marine
environment. Their design and manufacture conforms to the appropriate Electromagnetic Compatibility (EMC) standards, but good installation is required to ensure that performance is not compromised.
Although every effort has been taken to ensure that they will perform under all conditions, it is important to understand what factors could affect the operation of the product. Complete installation instructions are provided in Section 3 of this manual. Some preliminary suggestions are made below .
3.3.1 Installation
To avoid the risk of operating problems, all JRC equipment and cables connected to it should be:
• At least 1 m (3 feet) from any equipment transmitting or cables carrying radio signals e.g. VHF
transceivers, cables and antennas. In the case of SSB transceivers, the distance should be increased 2m (7 ft).
• More than 2m (7 ft) from the path of a radar beam. A radar beam can normally be assumed to
spread 30 degrees above and below the radiating element.
• The equipment should be supplied from a battery other than that used to start the engine. V oltage
drops below 10.8 V in the power supply to our products can cause the equipment to reset. Although this will not damage the equipment, it will cause loss of information and could change the
operating mode.
• Use JRC designated cables at all times. Cutting and rejoining these cables can compromise EMC
performance and should therefore be avoided unless specifically suggested in the installation
manual.
3.3.2 Check Before Going to Sea
• Always check the installation before going to sea to make sure that it is not affected by radio
transmission, engine starting, low battery voltage, or other problems.
• In some installations, it may not be possible to prevent the equipment from being affected by
external influences. In general this will not damage the equipment, but it can lead to it resetting, or
may momentarily result in faulty operation.
3.3.3 Servicing and Safety
• JRC equipment should be serviced only by authorized JRC service engineers. They will ensure
that service procedures and replacement parts used will not affect performance, There are no user
serviceable parts in any JRC product.
• The unit generates high voltages, so do not touch the cables or connectors when the power is on.
• Always report any EMC related problem to your nearest JRC dealer. W e will use such information
to improve our quality standards.
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GPS Navigator J-NAV500
4. Operation
4.1 Overview
When the setup operations described in Chapter 3 have been completed, turn on the power to start
operation. This chapter describes the basic flow of operations. The bold line boxes indicate user operations.
For information on messages output during operation, see Message Table in Appendix A.
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GPS Navigator J-NAV500
4.2 Turning the unit on/off
• Press to turn on the unit.
• Press and simultaneously to turn off the unit.
Display changes when the unit is turned on
When the unit is turned on, the displays are shown in the order given below: When position fixing is
completed, the [POSITION] display is shown.
[Self-test result][Version]
• Position fixing the first time the navigator is used or after a master reset takes about 20
minutes. (Subsequent position fixing takes about 1 minute.) To shorten this time, perform
the operation described in Section 4.19.2, Initializing GPS/DGPS receiver.
• For information on data error display, see the message list in Appendix A .
GPS status information
After position fixing
Master reset
This navigator is equipped with the following reset functions. For example, if the internal battery or the
ROM IC is replaced, a master reset would have to be performed.
When resetting the navigator, perform Initializing GPS/DGPS receiver as described in section 4.19.2
when correcting for local time.
1. Soft reset
This reset clears all data except registered waypoints and route plans.
• Key operated soft reset
Press the key while holding down the key.
• Menu selected soft reset
See Section 4.22, “To perform a master reset.”
2. Hard reset
This reset clears all data including registered waypoints and route plans.
• Menu selected hard reset
See Section 4.22, “To perform a master reset.”
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GPS Navigator J-NAV500
4.3 Selecting display language
The display language is set to English at the factory before shipment and reverts to this setting after a
master reset. Use the following steps to set it to desired language. One of the following seven language
can be set.
LANGUAGE: English (default)/
Display example
[Select Mode] [Navigation] [Navigation Menu]
(1) After position fixing, the [ POSITION ] display mode appears.
Press to display the Select Mode.
(2) Turn to select [ NAVIGATION ] and press to confirm it. This action displays the
[ NAVIGATION ] display mode.
(3) Press to display the [ NAVIGATION MENU ] .
Deutsch/Francais/Espanol/Norsk/Italiano/
‘
(4) Turn to select [ LANGUAGE ] and press . [ ENGLISH ] is now highlighted.
(5) Turn to select desired language and press . Check that the selected language is
displayed.
(6) Press to return to [ NAVIGATION ] display mode.
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