Becker Audio 30 USA 3309 Service Manual
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Becker Audio 30 USA 3309 Service Manual

(with can)
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Service Manual
Audio 30 USA 3309
BECKER GMBH
Im Stöckmädle 1
76307 Karlsbad, Germany
Telefon +49(0) 7248 710
Version 1.0 - english

Circuit diagram

Components schematics
Test programme
Anti-theft Device

Technical Data

Spare Parts List

(with CAN)
Modification reserved
Copyright by Becker GmbH, Karlsbad
Part. No. 1372.807

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Questions and answers

Pierre Du Plooy
January 27, 2025

Good day, I bought a C208 Mercedes and the radio (Audio 30) did not work. After repairs it is now working as well as the cassette tape that I pick up as CC (by using the Audio button). According to the user manual I should continue to push the Audio button in order to find the CD. I have a shuttle in the boot and it has disks already inserted but I don't pick up the CD when activating the Audio button. How do I get this to work? Everything else is working.

0
1 comments:
Mr. Anderson
May 14, 2025

To get the CD player to work in a Becker Audio 30 radio in a C208 Mercedes with a CD shuttle in the boot, ensure the following:

1. The CD shuttle is properly connected to the Audio 30 unit using the correct DIN cable.
2. Power and ground connections to the CD shuttle are secure.
3. The Audio 30 is correctly coded and recognizes the CD shuttle.
4. Use the radio interface to select the CD changer input.
5. If not working, check fuses and try a reset by entering TESTMODE (press button 3, then 6 times) and follow reset instructions.

If issues persist, verify CAN bus signals and the wake-up line from the radio to the shuttle.

This answer is automatically generated

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Summary of Contents for Becker Audio 30 USA 3309

  • Page 1: Circuit Diagram

    Service Manual Version 1.0 - english Audio 30 USA 3309 (with CAN) Circuit diagram Components schematics Test programme Anti-theft Device Technical Data Spare Parts List BECKER GMBH Modification reserved Im Stöckmädle 1 Copyright by Becker GmbH, Karlsbad 76307 Karlsbad, Germany Part.
  • Page 2 CSD - Version: 37/00 RESET-release MB-MY98 press simultanously Action: Sound source will be interruped for app. 1 second and display set up again. Test programme MB-MY98 Becker-Test mode press simultanously BECKER is activated after f. e. 10 = Field strength press once 89.5...
  • Page 3 Mercedes Benz MY98 CSD - Version: 37/00 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“ . 52344 Additional Entering the code number Audio 30 USA DIN...
  • Page 4 Mercedes Benz MY98 CSD - Version: 37/00 Technical Data Additional 3309...

  • Page 5: Table Of Contents

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 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) .........

  • Page 6: Block Diagram

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Control AF-section AF-section CC-Control, AF-amplifier Audio- Dolby B controller Tuner Connector- interface Interface Power Tuner Tuner „d2b“ supply Peripherie AM / WB Interface Control Front Shiftregister, „Interface“ EEPROM, 13 14 Wake up- line, CAN, K-line...

  • Page 7: Connector Block (Board 4040)

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Chamber Chamber Chamber Loudspeaker CAN-high Speed dependent Vol. rear right + control CAN-low K-line Loudspeaker rear right - Telephone Loudspeaker mute front right + Terminal 30, Loudspeaker Wake up line Battery front right - Control...

  • Page 8: Connector Interface (Board 4010)

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 AF-section Page 10 Connector Connector interface Audio 30 USA DIN 3309 (Board 4010)

  • Page 9: Power Supply

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 12V out UG9V Voltage control UG5V UD5V Tel.- Mute- input Power supply UG9V; UD5V; UG5V Audio 30 USA DIN 3309 (Board 4010)

  • Page 10: Tuner

    Curcuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Synthesizer Tuner FM-Tuner Audio 30 USA DIN 3309 (Board 4010)

  • Page 11: Fm-Peripherie (Board 4010)

    Curcuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 FM-Quality maximum Stereo-Canal separation Tuner FM-Peripherie Audio 30 USA DIN 3309 (Board 4010)

  • Page 12: Am / Wb -Tuner (Board 4010)

    Curcuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Tuner AM / WB -Tuner Audio 30 USA DIN 3309 (Board 4010)

  • Page 13: Af-Section

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Audio controller FM-Stereo decoder AF-section Audio controller and FM-Stereo decoder Audio 30 USA DIN 3309...

  • Page 14: Af-Amplifier (Board 4010)

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Connector interface AF-amplifier Control- AF- amplifier AF-section AF-amplifier Audio 30 USA DIN 3309 (Board 4010)

  • Page 15: Interface

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Fot-Unit D/A-converter d2b-optical A/D-converter Interface d2b-optical Audio 30 USA DIN 3302 (Board 4010)

  • Page 16: Wake Up-Line, Can-Bus, K-Line (Board 4010)

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Control Shiftregister -Page 14- Wake up-Line EEPROM Control „ON“ K-Line-BUS CAN-Physicallayer Interface Wake up-Line, K-Line, CAN-BUS Audio 30 USA DIN 3309 (Board 4010)

  • Page 17: Control

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Latch1 Output Processor Latch2 Input Selektion Latch1: Output Latch2: Input Adress- Latch Control Processor Audio 30 USA DIN 3309 (Board 4010)

  • Page 18: Shiftregister, Eeprom (Board 4010)

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Shiftregister EEPROM Interface Wake up-Line, CAN-BUS, K-Line-BUS, Page 12 Control Shiftregister, EEPROM Audio 30 USA DIN 3309 (Board 4010)

  • Page 19: Cc-Control, Dolby B (Board 4010)

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Tape monitoring CC-Ampl., Dolby B Control CC-control, Dolby B Audio 30 USA DIN 3309 (Board 4010)

  • Page 20: Front

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Illumination control Keyboard Illumination control Display Front Front-Interface Audio 30 USA DIN 3309 (Board 4010)

  • Page 21: Front-Processor, Keyboard Right (Board 9090)

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Keyboard right Keyboard central Illumination on Keyboard CC-slot Keyboard right Reset-control Keyboard central Processor Keyboard Switch Wake up right Front fixed Front- Processor Keyboard central Front Front-Processor, Keyboard right Audio 30 USA DIN 3309 (Board 9090)

  • Page 22: Keyboard Left (Board 9060)

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 Illumination Illumination on / off-switch Keyboard left Keyboard left Increment pick-up Volume, on / off-switch Front Keyboard left Audio 30 USA DIN 3309 (Board 9060)

  • Page 23: Display (Board 9080)

    Circuit diagram - Mercedes Benz MY98 CSD - Version: 37/00 LCD-driver Voltages for LCD- driver Illumination Display Front Display Audio 30 USA DIN 3309 (Board 9080)
  • Page 24 Page:1 of 21 Spare Parts List Type:3302_e Pos. Denomination Part.-No. 1284614 CHASSIS VMT 1309765 COVER, CHASSIS 1284622 HOLDING SPRING-RIGHT 1284630 HOLDING SPRING-LEFT 1271997 PROTECTION CAP -D2B HEADER- AMP 1278916 CONNECTOR 21 POL D&R K37000300 1246909 HEAT SINK 3310 WGR11318 1246917 IC-HOLDER 1246992 SCREENING FRAME-FM- WITH ANT.SOCKET...
  • Page 25 Page:2 of 21 Spare Parts List Type:3302_e C116 1223925 CECA-CH 6P8 J NP0 0603 BAW SPE0030A315 C117 1223951 CECA-CH 22P J NP0 0603 BAW SPE0030A315 C118 1223976 CECA-CH 47P J NP0 0603 BAW SPE0030A315 C120 1238787 CECA-CH 5P6 J NP0 0603 BAW SPE0030A315 C121 1173324 CECA-CH 1N J NP0 0805 BAW SPE0003A315...
  • Page 26 Page:3 of 21 Spare Parts List Type:3302_e C1836 1166751 CECA-CH 4N7 K X7R 0805 BAW SPE0015A315 C1861 1246208 CECA-CH 330N J X7R 1206 16V MUR GRM42-6 C1862 1246208 CECA-CH 330N J X7R 1206 16V MUR GRM42-6 C1863 1246208 CECA-CH 330N J X7R 1206 16V MUR GRM42-6 C1864 1246208 CECA-CH 330N J X7R 1206 16V MUR GRM42-6...
  • Page 27 Page:4 of 21 Spare Parts List Type:3302_e C253 1246348 CECA-CH 100N K X7R 0805 BAW SPE0035A315 C301 1119117 CECA-CH 10N J X7R 0805 BAW SPE0014A315 C303 1246321 CECA-CH 220N K X7R 1206 BAW SPE0036A315 C304 1246348 CECA-CH 100N K X7R 0805 BAW SPE0035A315 C310 1246348 CECA-CH 100N K X7R 0805 BAW SPE0035A315...
  • Page 28 Page:5 of 21 Spare Parts List Type:3302_e C368 1276220 CECA-CH 2N2 J X7R 0805 50V BAW SPE0014A C369 1119117 CECA-CH 10N J X7R 0805 BAW SPE0014A315 C370 1246321 CECA-CH 220N K X7R 1206 BAW SPE0036A315 C371 1173324 CECA-CH 1N J NP0 0805 BAW SPE0003A315 C374 1173324 CECA-CH 1N J NP0 0805 BAW SPE0003A315...
  • Page 29 Page:6 of 21 Spare Parts List Type:3302_e C488 1246348 CECA-CH 100N K X7R 0805 BAW SPE0035A315 C501 1186973 ALCA 1M M 25V G BAW SPE0074A312-RM5 C502 1246348 CECA-CH 100N K X7R 0805 BAW SPE0035A315 C506 1281641 FOKO 470N J 50V G BAW SPE0018A314 RM5 C507 1281641 FOKO 470N J 50V G BAW SPE0018A314 RM5...
  • Page 30 Page:7 of 21 Spare Parts List Type:3302_e C715 1281283 FOKO 15N J 63V G BAW SPE0010A314 RM5 C716 1275992 CECA-CH 330P J NP0 0603 BAW SPE0030A315 C717 1275992 CECA-CH 330P J NP0 0603 BAW SPE0030A315 C720 1249150 ALCA 22U M 16V BAW SPE0067A312-RM2,5 C721 1252585 CECA-CH 470N J X5R 1206 16V MUR GRM42-6...
  • Page 31 Page:8 of 21 Spare Parts List Type:3302_e C821 1229974 ALCA 100U M 25V I G BAW SPE0108 RM2,5 C850 1182943 CECA-CH 47N K X7R 0805 BAW SPE0015A315 C851 1246348 CECA-CH 100N K X7R 0805 BAW SPE0035A315 C852 1119125 CECA-CH 10N K X7R 0805 BAW SPE0015A315 C854 1246348 CECA-CH 100N K X7R 0805 BAW SPE0035A315...
  • Page 32 Page:9 of 21 Spare Parts List Type:3302_e DI251 1252143 DIODE-CH PHI BAS216 G DI301 1229788 DIODE-CH BAW BA779-2/1SV234/DPA05 G SPE DI302 1252143 DIODE-CH PHI BAS216 G DI306 1073656 DIODE-CH BAW BAV99 SHIP-TO-ST.G SPE0030A DI311 1252143 DIODE-CH PHI BAS216 G DI321 1183710 DIODE-CH BAW BB814 GRPP-1/2 G SPE0043A30 DI501...
  • Page 33 Page:10 of 21 Spare Parts List Type:3302_e IC602 1258397 IC-CH SIE TLE4276GV P-TO220-5-122 IC603 1246674 IC-CH SIE TLE4269GL P-DSO20-6 G IC604 1286242 IC-CH TOS TC7S14F G IC701 1246607 IC-CH SOY CXA2510Q IC702 1245996 IC-CH PHI 74HC03D,653 G IC780 1239147 IC-CH AUM OCC8001-01 IC781 1249101 IC-CH TOS TC7S08F G...
  • Page 34 Page:11 of 21 Spare Parts List Type:3302_e LD1833 1285122 LED-CH SIE LYT670E9008 K2/U Q62703-Q4228 LD1834 1285122 LED-CH SIE LYT670E9008 K2/U Q62703-Q4228 LD1835 1285122 LED-CH SIE LYT670E9008 K2/U Q62703-Q4228 LD1836 1285122 LED-CH SIE LYT670E9008 K2/U Q62703-Q4228 LD1837 1285122 LED-CH SIE LYT670E9008 K2/U Q62703-Q4228 LD1838 1285122 LED-CH SIE LYT670E9008 K2/U Q62703-Q4228...
  • Page 35 Page:12 of 21 Spare Parts List Type:3302_e R1302 1223836 RES-CH 100K J 0603 BAW SPE0026A323 R1303 1235451 RES-CH 82R J 0603 G BAW SPE0025A323 R131 1223771 RES-CH 10K J 0603 BAW SPE0026A323 R1310 1223550 RES-CH 10R J 0603 BAW SPE0025A323 R1331 1226071 RES-CH 1K5 J 0603 G BAW SPE0026A323...
  • Page 36 Page:13 of 21 Spare Parts List Type:3302_e R1832 1225571 RES-CH 22K J 0603 G BAW SPE0026A323 R1833 1225571 RES-CH 22K J 0603 G BAW SPE0026A323 R1836 1223836 RES-CH 100K J 0603 BAW SPE0026A323 R1837 1223887 RES-CH 1M J 0603 BAW SPE0026A323 R1838 1223887 RES-CH 1M J 0603 BAW SPE0026A323...
  • Page 37 Page:14 of 21 Spare Parts List Type:3302_e R242 1223771 RES-CH 10K J 0603 BAW SPE0026A323 R243 1223771 RES-CH 10K J 0603 BAW SPE0026A323 R246 1225571 RES-CH 22K J 0603 G BAW SPE0026A323 R247 1225571 RES-CH 22K J 0603 G BAW SPE0026A323 R251 1223690 RES-CH 1K2 J 0603 BAW SPE0026A323...
  • Page 38 Page:15 of 21 Spare Parts List Type:3302_e R363 1282662 RES-CH 180K F 0603 G BAW SPE0028A323 R364 1223781 RES-CH 33K J 0603 BAW SPE0026A323 R365 1254332 RES-CH 47K F 0603 G BAW SPE0028A323 R378 1223666 RES-CH 470R J 0603 BAW SPE0025A323 R422 1223747 RES-CH 5K6 J 0603 BAW SPE0026A323...
  • Page 39 Page:16 of 21 Spare Parts List Type:3302_e R631 1108761 RES-CH 15R J 1206 G BAW SPE0010A323 R632 1108761 RES-CH 15R J 1206 G BAW SPE0010A323 R633 1108761 RES-CH 15R J 1206 G BAW SPE0010A323 R701 1229575 RES-CH 11K J 0603 G TK200 BAW SPE0026A R702 1276001 RES-CH 16K J 0603 G BAW SPE0026A323...
  • Page 40 Page:17 of 21 Spare Parts List Type:3302_e R821 1108743 RES-CH 10R J 1206 G BAW SPE0010A323 R822 1108743 RES-CH 10R J 1206 G BAW SPE0010A323 R850 1254332 RES-CH 47K F 0603 G BAW SPE0028A323 R851 1223682 RES-CH 1K J 0603 BAW SPE0026A323 R852 1254022 RES-CH 2K2 F 0603 G BAW SPE0028A323...
  • Page 41 Page:18 of 21 Spare Parts List Type:3302_e R933 1223682 RES-CH 1K J 0603 BAW SPE0026A323 R934 1223682 RES-CH 1K J 0603 BAW SPE0026A323 R935 1223682 RES-CH 1K J 0603 BAW SPE0026A323 R940 1223682 RES-CH 1K J 0603 BAW SPE0026A323 R941 1223682 RES-CH 1K J 0603 BAW SPE0026A323 R942...
  • Page 42 Page:19 of 21 Spare Parts List Type:3302_e T101 1028049 TRANSISTOR-CH BAW BC858C G SPE0002A302 T102 1225537 TRANSISTOR-CH BAW BFR93A SHIP-TO-STOCK G T1310 1294792 TRANSISTOR-CH TEL S593T T1330 0659622 TRANSISTOR-CH BAW BC848C G SPE0004A302 T151 1018280 TRANSISTOR-CH BAW BC808-40 G SPE002 T152 1018280 TRANSISTOR-CH BAW BC808-40 G SPE002...
  • Page 43 Spare Parts List Type: 3302 Page 20 of 21...
  • Page 44 Spare Parts List Type: 3302 Page 21 of 21...

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