BECKER 4311ETL Service Manual
Service Manual
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Version 1.0 - english
Audio 10 Export Typ 4311
Circuit diagram
Components schematics
Test programme
Anti-theft device
Technical Data
Spare Parts List
BECKER GMBH
Im Stöckmädle 1
76307 Karlsbad, Germany
Telefon +49(0) 7248 710
Modifications reserved
Copyright by Harman/Becker, Karlsbad
Circuit diagram - Mercedes Benz W203
Block diagram
Main Board 4010 ....................................................2
Connector
Connector block (Board 4040-08HJ) ..................... 3
Connector-Interface (Board 4010-19LL) ............... 4
Power supply
UG3,3V, UD5V, UG5V, UG9V (Board 4010-19LL) . 5
Tuner
FM / AM (Board 4010-19LL) .................................. 6
AF-section
DSP, RDS/Stereo decoder (Board 4010-19LL) ...... 7
AF-Filter, AF amlifier (Board 4010-19LL) .............. 8
CSD - Version: 04/01
Interface
CAN, K-Line, telephone mute,
Wake up-line, Fot-unit (4010-19LL) ........................ 9
Control
Processor (Board 4010-19LL) ................................ 10
CC-control (Board 4010-19LL) ............................... 11
Front
Front-Interface (Board 4010-19LL) ...................... 12
Processor, Keyboard (Board 9090-29DL) .............. 13
Display (Board 9090-29DL) ................................... 14
Table of contents Circuit diagram 4311Audio 10 CC EXP
BE
1
Circuit diagram - Mercedes Benz W203
Connector
Connector block (Board 4040)
3
4
Interface (Board 4010)
CSD - Version: 04/01
Power
supply
3,3V, 5VD,
5VG, 9VG
Interface
Fot-unit
Interface
CAN, K-Line,
Wake up-
5
9
line
control
Processor
9 8
10
Front
AF-
amplifier,
Filter
DSP
with RDS-
Stere-Dec.
FM-Qual.
control
Tape deck
7
12
Front-Interface (Board 4010)
13
Processor, Keyboard (Board 9090)
Display (Board 9090)
14
11
Tuner
FM / AM
6
Block diagram Main Board 4010
BE
4311Audio 10 CC EXP
2
2
Circuit diagram - Mercedes Benz W203
CSD - Version: 04/01
Chamber Chamber
Chamber
PIN
Chamber A Chamber B Chamber C
1
2
Loudspeaker
rear right +
Loudspeaker
rear right -
CAN-High
CAN-LowK-Line
Telephone
3
mute
4
Battery
C
B
A
Control
5
output 12V
6
7
Terminal 31
8
Ground
Connector Connector block (Board 4040-08HJ) 4311Audio 10 CC EXP
Loudspeaker
front right +
Loudspeaker
front right -
Loudspeaker
front left +
Loudspeaker
front left -
Loudspeaker
rear left +
Loudspeaker
rear left -
Wake up lineTerminal 30
Battery 12V
Fuse
Terminal 31
Ground
BE
3
Circuit diagram - Mercedes Benz W203
CSD - Version: 04/01
to Connector block (Board 4040)
Connector Connector-Interface (Board 4010-19LL) 4311Audio 10 CC EXP
BE
4
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