7
Widescreen board monitor
Principle of operation
The on-board monitor is an input and display device that performs no internal calculations.
Inputs from the control panel buttons and knobs are converted into I-bus (K-bus E46)
signals by the BM control panel. All of the devices controlled by the BM are connected to
the I/K bus interface.
The navigation computer contains the graphics stage integrated into the navigation
computer housing. Request for on-board monitor displays are made to the navigation
computer via the I/K bus. The navigation computer generates the RGB video signals and
transmits them via 3 shielded wires.
Audio signals generated by the cassette drive are sent via traditional audio wires (4) to the
radio (located in the trunk or cargo area) for output to the audio system amplifier.
Workshop Hints
Service mode
Access for the radio, on-board monitor and navigation service modes is available through
the on-board monitor screen.
To enter the radio service mode:
Turn the ignition key to position 1 (KLR).
Turn the radio on, then off, then on again.
Press the “INFO” button. From the selection list choose “RDS”.
Press and hold the on-board monitor control knob for at least 8 seconds.
The audio display window will show the radio serial number as the first display.
The station search < > buttons are used to scroll through the various settings.
Turn off the radio to “set” any changes made.
Note: See the “NG” Radios
module for a list of the
tests and settings available
in the radio service mode.
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INFO
1
4
25
36
FM AM
MODEMENU
TONE SELECT
INFO
PTY
RDS
1
3 2
8
Widescreen board monitor
To enter the On-Board Monitor and Navigation Service Mode:
Turn the ignition key to position 1 (KL R).
From the Menu screen select “SET”.
Once in the Set screen, press and hold the “MENU” button for 8 seconds.
The Service Mode menu will appear on the display.
Select “On-board monitor” for monitor specific tests.
Tests and adjustments available for the on-board monitor are:
Version Information
Key Function (button and rotary knob test)
Brightness (Screen brightness adjustment)
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INFO
1
4
25
36
FM AMMODEMENU
TONE SELECT
Language
Distance
Consumpt.
Temp.
Clock
Date
Audio+OBCUSA
miles
mpg
F
12h
mm/dd
off E
km
1/100km km/l
C
24h set
dd.mm set
onSW 3-1/20 SET
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INFO
1
4
25
36
FM AMMODEMENU
TONE SELECT
On-board monitor
Video Module
GPS
Sensor check
TelematicsNAVIGATION/GRAPHIC ELEMENT
SERVICE MODE
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INFO
1
4
25
36
FM AM
MODEMENU
TONE SELECT
Sw level
Hw level:
Diag. Index:
Bus index:
Encoding index:
Supplier
ON-BOARD MONITOR VERSION
ReturnFunctions
return
Version
Key function
Brightness
Press and hold for 8 seconds after entering
the “SET” screen.Service Mode main menu display
