Discovery II
NAVIGATION SYSTEM
87-6
DESCRIPTION AND OPERATION
Service Menu
The service menu provides access to details of the navigation computer hardware and software, and can be accessed
when the navigation computer is in radio mode, by simultaneously pressing the NAV button and the 10 multifunction
buttons. The following items can then be scrolled through by pressing the Nxt (next) and Prv (previous) multifunction
buttons, or turning the RH rotary control:
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Model No.
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Serial No.
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Changer Reset
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GAL
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Radio Software
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Radio Bolo
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Navi Rom
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Navi Flash
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RTC Value
When Changer Reset is displayed, the CD autochanger (where fitted) can be reset by pressing the appropriate
multifunction button.
When the End multifunction button is pressed, the navigation computer quits the service menu and returns to radio
mode.
Garage Menu
Garage menu enables the navigation system to be tested and calibrated, and also contains a route navigation
demonstration. The garage menu is entered from the main navigation menu, as follows:
1 Press the Nav button to access the system settings.
2 Press and hold multifunction button 3, then press multifunction button 5 to display the garage menu.
The garage menu contains the following, which can be accessed using the RH rotary control:
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CALIBRATION RIDE – Used to calibrate the navigation computer, to enable route navigation.
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GPS INFO– Provides functional test of antenna by checking GPS reception. If functioning correctly, displays the
number of satellites being received, the date, time (Greenwich Mean Time) and the type of positional fix currently
possible.
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CALIBRATION– Allows vehicle specific calibration data to be entered, e.g. tyre size. Also allows current
calibration to be deleted prior to re-calibrating.
NOTE: Only known calibration data should be entered. The navigation computer cannot make route
calculations if incorrect data is entered.
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SENSORS– Allows wheel speed, reverse gear and gyro sensor inputs to be checked.
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VERSION– Displays navigation computer hardware and software details.
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SPEECH TEST– Performs a test of the navigation computer audio output.
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MODULE TEST– Performs a test routine on the internal components of the navigation computer.
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DEMO – Allows a route navigation demonstration to be run.
To quit the garage menu, press the Nav button.