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Circuit diagram - Mercedes Benz MY98 CSD - Version: 26/99


Blockdiagram
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-Tuner (Board 4010) ........................................ 8

AF-section
Audio controller and FM-Stereo decoder (Board 4010) 9
AF-amplifier (Board 4010) ..................................... 10

Interface
d2b-optical (Board 4010) ...................................... 11
Wake up-Leitung, K-Leitung (Board 4010)............ 12

Control
P-control (Board 4010) ........................................ 13
Shiftregister, EEPROM (Board 4010) ................... 14
CC-Steuerung, Dolby B/C (Board 4010) ............... 15

Front
Front-Interface (Board 4010).................................. 16
Front- P, Keyboard central and right (Board 9090)17
Tastatur links (Board 9060) .................................... 18
Display (Board 9080) ............................................. 19

Table of contens Circuit diagrams Audio 30 DIN Export BE 3301 1
Circuit diagram - Mercedes Benz MY98 CSD - Version: 26/99




AF-section AF-section Control Tuner
AF-amplifier Audio- CC-Control, FM
and controller Dolby B
Connector-
interface




Interface Power Tuner
supply Tuner
,,d2b" Periphery
AM / WB




Front Interface
Shiftregister, Control
Interface
EEPROM, P
Wake up-line,
K-line




Blockdiagram Main Board 4010 Audio 30 DIN Export BE 3301 2
Circuit diagram - Mercedes Benz MY98 CSD - Version: 26/99



Chamber B Chamber A Chamber C
Connector block
B1 B3 B5 B7 A1 A3 A5 A7 C1 C3 C5 C7 C9
B2 B4 B6 B8 A2 A4 A6 A8 C2 C4 C6 C8 C10
Chamber C C1 C3 C5 C7 C9

C2 C4 C6 C8 C10


B1 B3 B5 B7
Chamber B




Fuse 10A
B2 B4 B6 B8


A1 A3 A5 A7

Chamber A A2 A4 A6 A8




PIN Chamber A Chamber B Chamber C
Speed Loudspeaker not assigned
1 dependent Vol. rear right +
control
K-line Loudspeaker not assigned
2
rear right -
Telephone Loudspeaker not assigned
3
mute front right +
Terminal 30, Loudspeaker Wake up line
4
Battery front right -
Control Loudspeaker Battery 12V
5
output 12V front left + Fuse
Battery 12V Loudspeaker Terminal 31,
6
Fuse front left - Ground
Terminal 15, Loudspeaker not assigned
7
Ignition rear left +
Terminal 31, Loudspeaker not assigned
8
Ground rear left -

9 not assigned
10 not assigned

Connector Connector block (Board 4040) Audio 30 DIN Export BE 3301 3
Circuit diagram - Mercedes Benz MY98 CSD - Version: 26/99




AF-section
Page 10




Connector Connector interface (Board 4010) Audio 30 DIN Export BE 3301 4
Circuit diagram - Mercedes Benz MY98 CSD - Version: 26/99




12V out




UG9V

Voltage
control




UG5V
UG9V



Tel.- Mute- input


GAL-input

Inverter -Ignition KL75-




Power supply UG9V; UD5V; UG5V (Board 4010) Audio 30 DIN Export BE 3301 5
Circuit diagram - Mercedes Benz MY98 CSD - Version: 26/99




Synthesizer




Tuner FM-Tuner (Board 4010) Audio 30 DIN Export BE 3301 6
Circuit diagram - Mercedes Benz MY98 CSD - Version: 26/99




FM-
Qualit