Becker Audio 30 USA 3309 Service Manual
Version 1.0 - english
BECKER GMBH
Im Stöckmädle 1
76307 Karlsbad, Germany
Telefon +49(0) 7248 710
Modification reserved
Copyright by Becker GmbH, Karlsbad
Part. No. 1372.807
Audio 30 USA 3309 (with CAN)
Service Manual
Circuit diagram
Components schematics
Test programme
Anti-theft Device
Technical Data
Spare Parts List
BE
CSD - Version: 37/00
Mercedes Benz MY98
20
3309
Additional Test programme / Reset-release Audio 30 USA DIN
1
and
2
press simultanously
3 press once
Becker-Test mode
is activated
f. e. 10 = Field strength
f. e. 89.5 = Frequency (MHz)
200 = Grid FM
10 = Grid AM
Test programme MB-MY98
3 press 2 times
3 press 3 times
RESET-release MB-MY98
and
press simultanously
A B C
and
after 5 seconds test
programme will be quit
automaticly
3 press 4 times
3 press 6 times
SIG
10 89.5
BECKER
USA
200 10
TYP
BE 3309
SER
Y1035052
SW
15/00
END
TESTMODE
3 press 5 times
Action: Sound source will be interruped for app. 1 second
and display set up again.
Display:
actual software version
BRA
B
A
C
1
2
3
after
BE
CSD - Version: 37/00
Mercedes Benz MY98
21
3309
Additional Entering the code number Audio 30 USA DIN
Entering the code number
Using the buttons of the right-hand control panel enter each number of the digital code.
After entering the correct numerical code, confirm by pressing the button OK .
OK
52344
BE
CSD - Version: 37/00
Mercedes Benz MY98
22
3309
Additional Technical Data Audio 30 USA DIN
Technical Data
Wave bands: FM 87.9 MHz - 107.9 MHz
AM 530 kHz - 1710 kHz
WB CH1 - CH7
Station memory: 10 stations can be stored for each of the wave bands FM, AM and
7 stations for WB
Frequency range: 50 Hz - 16 kHz Cassette
30 Hz - 15 kHz FM
50 Hz - 2,5 kHz AM
Output power: 4 x 20 Watt
Line cross section: min. 0,75 mm²
Speaker Impedance : min. 4 Ohm
GAL: fixed defined volume increase
Antenna: Impedance 50 Ohm
Telephone mute: Low active level < 2 Volt
Supply voltage: 12 Volt
Tape deck: Autoreverse, electronical control (Full Logic Control)
Titel search forward/rewind
automatic skip-blank after app. 8-15 seconds
Telephone: Telephone operation about Radio
Soundsystem: Connection only via D2B optical interface
CD connection: Only MB-CD changers with D2B optical interface can be connected.
Playable CD's: Only CDs which conform to DIN EN 60908 may be used.
The use of 8 cm CDs with adapter is not recommended.
CAN-Bus: Steering control, combi display, speed puls, ignition, illumination
CSD - Version: 37/00
BE
1
Circuit diagram - Mercedes Benz MY98
Table of contents Circuit diagram 3309Audio 30 USA DIN
Block diagram
Main Board 4010 .................................................... 2
Connector
Connector block (Board 4040) .............................. 3
Connector interface (Board 4010) ......................... 4
Power supply
UG9V; UD5V; UG5V (Board 4010) ........................ 5
Tuner
FM-Tuner (Board 4010) ......................................... 6
FM-Peripherie (Board 4010) ................................. 7
AM / WB -Tuner (Board 4010) .............................. 8
AF-section
Audio controller and FM-Stereo decoder ............... 9
AF-amplifier (Board 4010) ...................................... 10
Interface
d2b-optical (Board 4010) ...................................... 11
Wake up-Line, CAN-BUS, K-Line (Board 4010) .... 12
Control
Processor (Board 4010) ........................................ 13
Shiftregister, EEPROM (Board 4010) ................... 14
CC-control, Dolby B (Board 4010) ........................ 15
Front
Front-Interface (Board 4010).................................. 16
Front-Processor, Keyboard right (Board 9090) ......17
Keyboard left (Board 9060) .................................... 18
Display (Board 9080) ............................................. 19
CSD - Version: 37/00
BE
2
Circuit diagram - Mercedes Benz MY98
AF-section
AF-amplifier
and
Connector-
interface
AF-section
Audio-
controller
Control
CC-Control,
Dolby B
Tuner
FM
Interface
„d2b“
Power
supply
Tuner
AM / WB
Interface
Shiftregister,
EEPROM,
Wake upline, CAN,
K-line
Control
CPU
Tuner
Peripherie
Block diagram Main Board 4010
2
3309Audio 30 USA DIN
Front
„Interface“
10
11
16
9
5
12
15
7
13
14
6
8
CSD - Version: 37/00
BE
3
Circuit diagram - Mercedes Benz MY98
Connector Connector block (Board 4040) 3309Audio 30 USA DIN
A
B
C
Loudspeaker
rear right +
CAN-high
Speed
dependent Vol.
control
PIN
Chamber A Chamber B Chamber C
1
Loudspeaker
rear right -
CAN-low
K-line
2
Loudspeaker
front right +
Telephone
mute
3
Loudspeaker
front right -
Wake up lineTerminal 30,
Battery
4
Loudspeaker
front left +
Battery 12V
Fuse
Control
output 12V
5
Loudspeaker
front left -
Terminal 31,
Ground
Battery 12V
Fuse
6
Loudspeaker
rear left +
Terminal 15,
Ignition
7
Loudspeaker
rear left -
Terminal 31,
Ground
8
CSD - Version: 37/00
BE
4
Circuit diagram - Mercedes Benz MY98
Connector Connector interface (Board 4010) 3309Audio 30 USA DIN
AF-section
Page 10
CSD - Version: 37/00
BE
5
Circuit diagram - Mercedes Benz MY98
Power supply UG9V; UD5V; UG5V (Board 4010) 3309Audio 30 USA DIN
Voltage
control
UG5V
UG9V
12V out
UD5V
Tel.- Mute- input
CSD - Version: 37/00
BE
6
Curcuit diagram - Mercedes Benz MY98
Synthesizer
Tuner FM-Tuner (Board 4010) 3309Audio 30 USA DIN
CSD - Version: 37/00
BE
7
Curcuit diagram - Mercedes Benz MY98
Tuner FM-Peripherie (Board 4010) 3309Audio 30 USA DIN
FM-Quality
maximum
Stereo-Canal
separation
CSD - Version: 37/00
BE
8
Curcuit diagram - Mercedes Benz MY98
Tuner AM / WB -Tuner (Board 4010) 3309Audio 30 USA DIN
CSD - Version: 37/00
BE
9
Circuit diagram - Mercedes Benz MY98
AF-section Audio controller and FM-Stereo decoder 3309Audio 30 USA DIN
Audio controller
and
FM-Stereo decoder
CSD - Version: 37/00
BE
10
Circuit diagram - Mercedes Benz MY98
AF-section AF-amplifier (Board 4010) 3309Audio 30 USA DIN
Connector interface
Control-
AF- amplifier
AF-amplifier
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