BMW 7 SERIES 2001 E38 Wide Screen On Board Monitor Workshop Manual

Initial Print Date:10/03/00Revision Date:9/30/00
Subject Page
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Component overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Principle of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Workshop Hints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Review Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table of Contents
WIDE SCREEN ON-BOARD MONITOR

2
Widescreen board monitor
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.

3
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).

4
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.

5
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.
11.13.2000Thursday10:17
INFO
1
4
25
36
FM AM
MODEMENU
TONE SELECT
MENU
On-board computer
DSP
Code
SetGPS-Navigation
Monitor off Emergency
Aux. Ventilation
INFO = Activates the soft key menu for RDS and PTY
1-6 BUTTONS = Audio presets and CD selection
AM/FM SELECTION
MODE/DISPLAY = Mode selects between audio functions. Display alternates between
radio display and other displays. BC,TEL,NAV etc.6.5 INCH DISPLAY
16:9 ASPECT RATIO
PHOTOCELL SENSOR
RADIO STATUS LED = Signal from
radio via I/K bus.
AUXILIARY FAN INDICATOR LED
RADIO CONTROL KNOBON-BOARD MONITOR CONTROL
KNOB
INFO
1
4
25
36
FM AM
MODE
MENU
TONE SELECT
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.
Select: Choose between station search methods (a,m or scan).
FAST FORWARD/REVERSE / STATION SEARCH
MENU = Returns display to main menu

6
Widescreen board monitor
Wide Screen Board Monitor Interface
Example of E38/E39 with Wide Screen Board Monitor
RED SIGNAL
GREEN SIGNAL
BLUE SIGNAL
LCM IIILCMIII
MFL-CM Telephone
PSE Box
Telephone
PSE
Box
I-BUSI-BUS
K-BUSDIAGNOSIS BUSDIAGNOSISBUS
SRS
AIRBAGSRS
AIRBAG
BMW
BM53
NAVIGATION
AUDIO
SIGNALS
GPS
ANTENNA
CD
PLAYER
AUDIO
SIGNALSAUDIO SIGNALS
FOR AMPLIFICATION
TAPE PLAYER
AUDIO SIGNALS
AMPLIFIER
DSC
(processed
left front wheel
speed signal)
REVERSE SIGNAL FROM
LCM
POWERGPSNAVIGATION SYSTEM
13.07.2000Thursday10:17
INFO
1
4
25
36
FM AMMODEMENU
TONE SELECT
B
O
SC
H
0½
CHECK
ENGINECHECK
ENGINEOIL SERVICEOILSERVICEINSPECTIONP
1/min
x 1000
km/hELECTRONICMPH
1
202040406060
8080100180160140 1201002001202201402400234
5
6
7
!!ABS20 DIGIT READOUT123456PRND SM
54321122 4720Fmiles
0
10
15 20 40
+
BMW
StarTAC

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.
11.13.2000Thursday10:17
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)
11.13.2000Thursday10 : 17
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
11.13.2000Thursday10 : 17
INFO
1
4
25
36
FM AMMODEMENU
TONE SELECT
On-board monitor
Video Module
GPS
Sensor check
TelematicsNAVIGATION/GRAPHIC ELEMENT
SERVICE MODE
11.13.2000Thursday10:17
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

9
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?
BMWDISB
M
WD
I
S
BMWDISB
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WD
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