Becker Mexico 7948 User manual

Installation Guide
2
Installation Guide
Contents
Prior to installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Symbols used in the installation guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Connection diagram for the navigation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation of the GPS antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Connecting a GSM antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation of the microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connection of the reverse signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Connection of the speed signal (GAL) from the speedometer/ tachometer . . . . . . . . . . . . . . . . . . 13
Installation/ Removal of the Mexico . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Commissioning and calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Service mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Prior to installation
Before starting installation, please read this installation guide carefully. In particular, please pay attention to the safety and
installation instructions.
Symbols used in the installation guide
Gdenotes instructions which are important for your safety and the safety of others.
denotes instructions which are important for the installation and function of the unit.

Installation Guide
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Safety instructions
GIncorrect installation
Incorrect installation may result in damage to the unit or to the vehicle. Specialist knowledge and skills are required to
install the unit and its components. We strongly recommend that you have the unit installed by a specialist workshop.
GRisk of injury
Installing the components incorrectly may lead to injuries in the event of a road traffic accident or render safety
devices ineffective. Please refer to the instructions provided by the vehicle manufacturer.
GDamage to the airbag
Installing the components in the wrong location may damage the airbag or impair its operation. Do not install the
components within the operating range of the airbag.
GRisk of injury due to loose connection
Connect the components so that they cannot come loose in the event of a collision or sudden braking.

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Installation instructions
Damage due to polarity reversal or short-circuit
Incorrect cable connections and short-circuits can seriously damage the unit.
Disconnect the vehicle battery before installing the unit.
In order to avoid short-circuits and malfunctions, install the cables so that they cannot be pinched, kinked, chafed
or detached.
Before installation, park the vehicle in a safe and level place and remove the ignition key.
In order to avoid malfunctions, it is absolutely essential to observe the relevant cable cross-section when using
branch connections/cable connectors.
In order to avoid short-circuits and any associated risk of fire, cables which have to be cut must be properly
insulated.

Installation Guide
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Connection diagram for the navigation system
Connection options are described in detail on Page 24.
The connection for a GSM antenna is only provided in devices with a built-in telephone.
The power supply must be protected separately by its own fuses.
Radio aerial
Speedometer/speedometer cable signal
GPS antenna
Power supply
Reverse signal
Navigation unit
Sound system/
loudspeaker
Microphone
GSM antenn

Installation Guide
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Installation of the GPS antenna
Possible installation positions
•Outside the vehicle
a. Attach the antenna to a flat, pre-washed metal surface.
b. Then guide the antenna cable into the vehicle interior.
GRisk of injury
People with pacemakers should avoid proximity to the magnetic antenna and should not carry the antenna on their
person, as this may affect the function of the pacemaker.
Keep the magnetic antenna away from data storage media (disks, credit cards, magnetic cards etc.) and electronic
and precision engineering equipment, as this may cause data to be deleted.
Do not use the antenna in areas at risk of explosion.
The antenna is to be affixed in such a manner that it cannot detach in the event of a collision or sudden braking.
GRisk of injury
The maximum vehicle speed for the antenna if magnetically attached is 180 km/h. The antenna must be removed or
specially secured at higher speeds.
The antenna is not suitable for car-wash facilities.

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•Inside the vehicle
The GPS antenna is not suitable for installation in vehicles with anti-glare windows (metalised thermo-glass or
metal foil (can be seen on the window label - SIGLA SOL, SIGLA CHROM, SIGLA, KOOL-OF, SUNGATE,
etc.) and vehicles with fine-meshed heating wires in the windows.
Information on installation position
When selecting the installation position, ensure that the antenna has a clear view in all directions, and that it is
not covered by the windscreen wipers. Obstructions caused by the bonnet, window crossbeams and roof should
be avoided as far as possible.
Concealed installation beneath the vehicle console is not permitted.
Installation on the vehicle side windows is not permissible.
The antenna cable should not run parallel to other cables in the vehicle.
The antenna cable should be routed via the shortest distance from the navigation system to the antenna. The
excess cable should be attached directly below the antenna.

Installation Guide
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a. Secure the antenna to the base plate (1) with magnets.
b. Remove protective strip from top of adhesive tape (2) and stick to the centre of the base plate underside.
c. Remove protective strip from bottom of adhesive tape (2) and stick the antenna and base plate onto the vehicle
console beneath the windscreen at the installation position.
Connecting a GSM antenna
The connection of a GSM antenna is only necessary or possible for devices with a built-in telephone module.
As a GSM telephone antenna is already installed in many vehicles, an adapter is supplied with the device (device connection on
an FME connector). Connect the adapter lead to the corresponding socket on the rear of the device. You can then connect to the
adapter lead either a commercially available telephone antenna or an antenna that is already installed in the vehicle. If the con-
nections do not fit, you will need to use appropriate adapters.

Installation Guide
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Installation of the microphone
The microphone should be placed in the vehicle to allow optimal recognition of the speaker’s voice. Possible positions in
the vehicle for the microphone can be seen in the following diagram.
Affixing the hands-free microphone to a flat and smooth surface can be accomplished with the adhesive strip D
(Clean adhesion surfaces).
The installation position should be as far away from the loudspeakers, and as near to the speaker, as possible. If prob-
lems occur, different positions should be tested. In order to pick up as little background noise as possible, the micro-
phone has a narrow pick-up angle and must consequently be directed towards the driver.
A: Optimal installation position
B: Alternative installation position
C: Speaking direction on microphone
D: Adhesive strip for affixing to smooth surfaces
E: Screw for fastening the screw-on plate
F: Screw-on plate for affixing to rough or
uneven surfaces.

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If the microphone is to be affixed to a rough or uneven surface, the screw-on plate Fshould be affixed first with the screw E.
(To avoid risk of damage to any cables installed underneath or other vehicle components, please pay attention to screw
length.)
Subsequently, affix the microphone to the screw-on plate Fwith the adhesive strip D. The connection of the hands-free
microphones takes place in socket C of the Mexico.
In order to avoid short-circuits and malfunctions, install the cables so that they cannot be pinched, kinked,
chafed or detached.

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Connecting a microphone to the Mexico
a. Connection without CD changer or without remote kit for an iPod™
For connecting the microphone to a device without CD changer or without a remote kit for an iPod™, the enc-
losed blue socket must be connected as described below. Before connection, remove protective cap Afrom both
contacts.
b. Connection with CD changer or with remote kit for an iPod™
For connecting the microphone to a device with CD changer or with a remote kit for an iPod™, the blue socket
on the existing cable must be connected with the 2 leads as described below. Before connection, remove protective
cap Afrom both contacts.
Connection of the blue plug housing
Caution!
Once the contacts have been inserted into the blue plug housing, a special tool is required to remove them.
Socket C
Socket C3
Pin Colour Function
13 red NF
14 black Earth
13
14
A

Installation Guide
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Connection of the reverse signal
If the switch on the gearbox or shift linkage is accessible:
• Connect a separate lead to the activated contact.
Connect lead to socket A, pin 2.
Low - level = earth, high - level 12 V - 16 V
If the switch is not accessible:
• Check which lead is routed to the reversing lamp. Then, if necessary,
remove the inner cover for the reversing light.
Connect a separate lead to the activated lead of the reversing lamp
and connect to socket A pin 2.
Pick-up points for the reverse signal vary from vehicle to vehicle.
If you are in any doubt, please contact your vehicle manufacturer or authorised specialist workshop.
Reverse
signal
A

Installation Guide
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Connection of the speed signal (GAL) from the speedometer/ tachometer
Electronic speedometer
• Remove the signal from the speedometer, extend and connect to
socket A pin 1.
• Minimum requirement for the signal:
0 Hz - 4 kHz/square-wave signal (no inductive sensor)
Low level < 1.5 V, High level 5 V - 16 V
GAccident hazard
Incorrectly connected wiring may result in damage to or destruction of vehicle components and safety devices.
If you are in any doubt, please contact your vehicle manufacturer or authorised specialist workshop.
Depending on the vehicle equipment, the lead for the GAL signal
is usually connected to the DIN - ISO plug of the car radio.
The assignment of the DIN - ISO plug may vary depending on
the vehicle type.
If you do not know the exact installation position/location of the
speed signal, please consult the vehicle manufacturer.
GAL signal
A

Installation Guide
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Mechanical speedometer with built-in speed sensor in the speedometer cable
• Remove the signal from the speed sensor, extend and connect to
socket A pin 1.
• Minimum requirement for the signal:
0 Hz - 4 kHz/square-wave signal (no inductive sensor)
Low level < 1.5 V, High level 5 V - 16 V
Mechanical speedometer without speed sensor in the speedometer cable
A speed sensor must be built into the speedometer cable to generate a
digital signal.
The VDO Adapter 2152.30300000 or a vehicle-specific adapter that
fulfils the minimum requirements can be used. The VDO speed sensor
is suitable for direct installation on the gearbox (no further installation
parts required) or in the speedometer cable (in conjunction with
additional universal installation parts).
If you do not know the exact installation position/location of the
speed signal, please consult the vehicle manufacturer.
If the sealed speedometer cable is released, a correct display
cannot be guaranteed. Incorrect installation leads to improper
functioning of the navigation system or of the speedometer.
GAL signal
A

Installation Guide
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Installing the speed sensor directly on the gearbox
• Release the speedometer cable and screw speed sensor onto
gearbox. Screw released speedometer cable onto the speed sensor
and connect the wires.
Cable connections for the speed sensor
Brown - earth (terminal 31)
Black - power supply (terminal 15), 9 - 16V, 30 mA
Blue/red - signal for socket A pin 1
Installing the speed sensor in the speedometer cable
In this case, please contact your dealer or VDO representative.
GAL signal
A

Installation Guide
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Installation/ Removal of the Mexico
• Installation:
The Mexico features an integrated universal bracket for
DIN installation slots. An installation frame is not required.
The Mexico is inserted into the installation slot and secured with
the slides supplied.
To install, complete all electrical connections. Then push the Mex-
ico into the installation slot. Subsequently, insert slides into the
openings on the front of the Mexico as far as the first detent posi-
tion (Fig. A). Now lock the radio in by pulling on both slides as
shown in Fig. B. Subsequently, remove the slides.
• Removal:
To remove the Mexico, it must first be unlocked. To do this, push
in both slides as far as the second detent position as shown in Fig-
ure A. Then take hold of the Mexico on both sides and pull it out
(Fig. C). Next, remove the slides by pressing the springs on the
right and left sides of the Mexico. If the Mexico was previously
installed in another vehicle, it may be necessary to adjust the
springs on the unit before installationMexico. To adjust the
springs, insert slide as shown in Fig. Dand subsequently adjust as
shown in Fig. E(Gently press slide in the direction of 1while at
the same time moving the slide in the direction of 2).
The installation angle of the Mexico must not exceed 0° - 35°
(vertical). Only the enclosed bolts may be used for an attach-
ment from the rear.
A
B
C
D
E
1
2

Installation Guide
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Commissioning and calibration
• For commissioning and calibration, you must switch on the vehicle
ignition. Switch on the device and enter the code (see the operation
guide for a detailed description).
The vehicle must be parked outdoors, ensuring that it has a clear
view in all directions (not in the immediate vicinity of buildings).
•Press .
Navigation is activated.
• If the navigation memory card has not yet been inserted, you will
be prompted to insert it.
• "German", the default language, is loaded by the device.
Following loading, you can select a different language as described
in the operation guide.
• The adjacent display appears after the language installation.
You must now wait for sufficient GPS reception.
This procedure (first reception of the necessary GPS data) may
take a few minutes. The unit must remain switched on for the entire
duration of this procedure. The vehicle must not be moved. If, after
approximately 10 minutes, the unit has not switched to the next
display, the parked position (clear view in all directions as far as
possible) or the installation location of the GPS antenna must be
checked. You can also call up the GPS information and check
whether the values displayed there have changed (see the
description in GPS information - GPS function test on page 23).
2001
8001
8002
8003

Installation Guide
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Once sufficient GPS reception can be assured, the Mexico
switches to the next display.
• You are prompted to take a calibration journey.
Carry out the calibration journey.
During the journey, the speed signal (GAL) is automatically
adapted to the vehicle-specific data and the gyro sensor is
automatically adapted to the installation position of the unit.
The distance to be covered depends on the type of vehicle and the
local conditions.
The basic requirement for a calibration journey is: driving
200 - 300 metres in a straight line, then turning by at least
60 degrees and then driving 200- 300 metres in a straight line
again, and turning again.
The direction you turn is of no significance. If these conditions
cannot be fulfilled due to the road or the fact that you do not
always have optimum GPS reception, this will not lead to a
poorer calibration, but will simply mean the time and distance
necessary for the calibration ride will be longer.
8004

Installation Guide
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• The Navigation menu appears to indicate that calibration has been
completed successfully.
• For correct navigation on routes with time-dependent traffic
guidance, the time should be set correctly as described in the
operation guide under “Settings” in Navigation mode.
The navigation system is only ready for operation on completion
of the calibration journey. Final precision is only achieved after a
further journey.
Old
version

Installation Guide
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Service mode
In Service mode, various functions can be checked in detail and the
calibration can be modified.
• Switch on the unit (see operation guide).
Enter code (see operation guide).
• Press and at the same time.
The Service menu appears.
Turn the rotary control/push button to select one of the following
options:
•6WDWXVRIFDOLEUDWLRQUXQ - Calibration journey display
•'HOHWHFDOLEUDWLRQ - Function for deleting the calibration
•6HQVRUV - Sensor function test
•*36,QIR - GPS function test
•9HUVLRQ - Display of software module versions
•'HPRPRGH - Switch demo mode on/off
Confirm your selection by pressing the rotary control/push button .
8005

Installation Guide
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Calibration journey status - Calibration journey display
Select 6WDWXVRIFDOLEUDWLRQUXQ in the Service menu.
The calibration status (e.g. 6WDWXV), type of positioning (e.g. '),;),
the road along which the vehicle is currently travelling (if available),
the current geographical position, the height above sea level
(if available) and the number of satellites received are displayed.
Delete calibration - Function for deleting the calibration
If the Mexico is removed from one vehicle and installed in another, it
must be calibrated. However, to do so, the current calibration data must
be deleted.
Select 'HOHWHFDOLEUDWLRQ in the Service menu.
Select <HV (delete calibration) or 1R (maintain calibration).
8006
8007