Table of Contents
WIDE SCREEN ON-BOARD MONITOR
Subject Page
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Component overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Principle of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Workshop Hints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Review Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Initial Print Date:10/03/00 Revision Date:9/30/00
WIDE SCREEN ON-BOARD MONITOR
Model: E39,E38,E46,E53
Production Date: E38,E39 from 9/00
E53 from 1/01
E46 Cabrio from 3/01
all other E46 models from 9/01
Objectives
After completing this module you should be able to:
" Describe the benefits of the wide screen monitor over the previous versions.
" Understand how to operate the wide screen monitor.
" Review the procedures to access the Service Modes.
2
Widescreen board monitor
Introduction
While the instrument cluster provides all of the important vehicle status information to the
driver, the on-board monitor is designed as an additional display that can be viewed by both
the driver and vehicle passengers. Information relating to the vehicle, navigation, audio sys-
tem and telephone can be displayed and controlled from a central location.
The wide screen on-board monitor replaces both the 5.5 versions in the E38 and E39, and
the 5 board monitor from the E53 and E46. The wide screen display has a screen size of
6.5 and an aspect ratio (length:height) of 16:9.
The benefits of the wide screen design are:
" Larger display area and higher resolution (400X234 pixels).
" Improved display screen technology (Ad-TFT LC).
" Bigger text size.
" Soft keys replace country specific audio function keys.
" Used for all board monitor applications in all markets reducing variants.
" Larger display area makes split screen and magnification features possible (future
software enhancements).
3
Widescreen board monitor
Component Overview
The wide screen on-board monitor consists
of:
1. Monitor housing with cassette drive
2. Display screen
3. On-board monitor control panel
Cassette Drive
The cassette drive is located behind the on-board monitor screen. In order to access the
cassette, press the eject button, the display screen tilts forward to uncover the cassette
slot. The images will remain displayed on the screen.
After pressing the eject button again or automatically after 15 seconds the display returns
to its normal position (cassette must be completely inside or removed). The tilt mechanism
for the display screen utilizes anti-trap, if the board monitor detects a sudden change in
speed, the display will reverse direction.
4
Widescreen board monitor
Display Screen and Control Panel
The display screen has a diagonal width of 6.5 and an aspect ratio of 16:9 compared to
the previous monitors that had a ratio of 4:3. The new screen also uses a Ad-TFT display
(Advanced Thin Film Transistor). This type of screen uses ambient light in addition to back-
lighting in order to illuminate the display. The advantage is a constant contrast and
brightness level at all ambient lighting conditions.
6.5 INCH DISPLAY
16:9 ASPECT RATIO
INFO
MENU
1
4
On-board computer GPS-Navigation
2 5
Aux. Ventilation
DSP
3 6
TONE SELECT
Code
FM AM
Emergency
MODE Monitor off
Set MENU
11.13.2000 Thursday 10:17
RADIO CONTROL KNOB PHOTOCELL SENSOR ON-BOARD MONITOR CONTROL
KNOB
RADIO STATUS LED = Signal from
radio via I/K bus.
AUXILIARY FAN INDICATOR LED
INFO INFO = Activates the soft key menu for RDS and PTY
1
4
1-6 BUTTONS = Audio presets and CD selection
2 5
3 6
FM AM
AM/FM SELECTION
MODE/DISPLAY = Mode selects between audio functions. Display alternates between
MODE
radio display and other displays. BC,TEL,NAV etc.
TELEPHONE STATUS LEDs / EJECT = Tilts monitor to access cassette drive.
TELEPHONE = Send/End button
TAPE REVERSE/CLOCK = Clock: Pressing with key off displays time. Aux. ventilation
can be switched by holding button longer.
TONE/SELECT=Tone: Dolby (cassette only) and audio adjustments. TONE SELECT
Select: Choose between station search methods (a,m or scan).
FAST FORWARD/REVERSE / STATION SEARCH
MENU
MENU = Returns display to main menu
5
Widescreen board monitor
CHECK
ENGINE
Wide Screen Board Monitor Interface
4
80 3
100 1/min
5
60
120 2 x 1000
140
100 160
80 180
200
40 60 120
6
220
40 1
½ 240
20
20 140
DIAGNOSIS
BUS
0 0 DIAGNOSIS BUS
K-BUS 7
km/h
MPH 40 0
ELECTRONIC 20 15 10
!
miles
+72 P ! ABS
123456 122 4 0F PRND SM
OIL SERVICE
OIL
SERVICE
CHECK
INSPECTION 54321
ENGINE 20 DIGIT READOUT
M
Telephone
T
e
lephone
SRS
SRS
AIRBAG
AIRBAG
StarTAC
PSE Box
PSE
Box
BMW
MFL-CM
LCM III
LCM
III
AMPLIFIER
AUDIO SIGNALS
FOR AMPLIFICATION
INFO
1 4
2 5
3 6 TONE SELECT
BM53 FM AM
MODE MENU
13.07.2000 Thursday 10:17
TAPE PLAYER
CD
AUDIO SIGNALS
PLAYER
AUDIO
RED SIGNAL
SIGNALS
GREEN SIGNAL
NAVIGATION
BLUE SIGNAL
AUDIO
SIGNALS
GPS
ANTENNA POWER
GPS NAVIGATION SYSTEM
DSC
(processed
REVERSE SIGNAL FROM
left front wheel
LCM
speed signal)
Example of E38/E39 with Wide Screen Board Monitor
6
Widescreen board monitor
I-BUS
I-BUS
W
B
H
C
S
O
B
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
1
module for a list of the
INFO
tests and settings available
INFO
1 4
PTY
in the radio service mode.
2 5 RDS
2
3 6 TONE SELECT
FM AM
MODE MENU
11.13.2000 Thursday 10:17
3
7
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.
INFO INFO
SET SW 3-1/20
SERVICE MODE
1 4 1 4
USA E
Language
On-board monitor
2 5 2 5
km miles
Distance
NAVIGATION/GRAPHIC ELEMENT
1/100km mpg km/l
Consumpt.
3 6 TONE SELECT 3 6 TONE SELECT
Video Module
C F
Temp.
GPS
24h 12h set
FM AM Clock
FM AM
Sensor check
Telematics
MODE dd.mm mm/dd set MENU
Date MODE MENU
on off
Audio+OBC
11.13.2000 Thursday 10:17
11.13.2000 Thursday 10:17
Press and hold for 8 seconds after entering
Service Mode main menu display
the SET screen.
INFO
ON-BOARD MONITOR VERSION
1
4
return
Sw level
2 5
Version
Hw level:
Key function
Diag. Index:
3 6
TONE SELECT
Brightness
Bus index:
Encoding index:
FM AM
Supplier
MODE
MENU
Functions
Return
11.13.2000 Thursday 10:17
Tests and adjustments available for the on-board monitor are:
" Version Information
" Key Function (button and rotary knob test)
" Brightness (Screen brightness adjustment)
8
Widescreen board monitor
Diagnosis
Fault driven diagnosis is possible using the DIS/MoDiC Diagnosis Program. The Diagnosis
Program features:
" Identification
" Read/Clear fault memory
" Diagnosis requests
" Fault driven test modules. (E46 concept)
Review Questions
1. Which component is responsible for providing the display signals to the wide screen on-
board monitor?
2. How does the radio receive the control requests from the on-board monitor control
panel?
3. What tests and adjustments are available in the service mode that are specific to the
on-board monitor?
9
Widescreen board monitor
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