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1. Main unit with map disc and TMC
receiver
The main unit which is only designed for
Volvo map discs, is located in the cargo
compartment.
The main unit includes the following
functions:
• Calculating the car's position.
• Route calculation to specified desti-
nation and decoding traffic messages.
• Voice guidance.
The map information does not always corre-
spond with the real situation. (Volvo is not
responsible for the accuracy of the map
material or the TMC information.)
TMC (Traffic Message Channel) is a stand-
ardised coding system for traffic information.
The TMC receiver searches for the relevant
frequency. The transmission takes place via
FM frequencies.
2. GPS antenna
The car's speed sensor and a gyro calculate
the current position and the direction of travel
of the car using signals from the GPS satellite
system.
3. Navigator (keypad)
Different menu options can be scrolled and
selected using the navigator.
4. Screen
The screen displays maps and provides
detailed information on route options,
distance etc.
The IR receiver for the remote control is
located in the top of the screen frame.
5. Radio
The radio is used to provide voice messages
via the driver door loudspeaker and to control
the TV.
6. TV receiver
The TV receiver is optional.
Introduction
7
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