Service manual

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BeoSound 4

Type 2851, 2852, 2853, 2854, 2855, 2857, 2858, 2859, 2860

Service Manual

English

German, French, Italian, Spanish, Danish, Dutch and Japanese

versions are available in the Retail System

This Service Manual must be returned

with the defective parts/back-up suitcase !

ABO-CENTER v/HENRIKSENS ELEKTRONIK

Summary of content (70 pages)

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BeoSound 4 Type 2851, 2852, 2853, 2854, 2855, 2857, 2858, 2859, 2860 O AB Service Manual English German, French, Italian, Spanish, Danish, Dutch and Japanese versions are available in the Retail System R TE N E -C H v/ EN S EN KS RI T EK EL IK N RO This Service Manual must be returned with the defective parts/back-up suitcase !
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CONTENTS Survey of modules ......................................................................................... 1.1 How to service ............................................................................................... 1.2 PIN-code ........................................................................................................ 1.3 O AB Warnings ....................................................................................................... 1.5 Final check after repair . .......
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Survey of modules 1. Survey of modules 37 2 6 O AB 10 12 96 61 4 R TE N E -C 8 H v/ 5 85 4 7 Keyboard EN 3 5 9 S EN KS RI 1 11 T EK EL IK N Socket Master Magic Light Turn wheel Main microprocessor Codec Tacho Headphone Display SD/MMC card reader Switch DAB SMPS FM tuner EU/JP CD unit RO PCB1 ........................... PCB2 ........................... PCB3 ........................... PCB4 ........................... PCB5 ........................... PCB6 ......................
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1. How to service How to service Converting mains supply voltage The unit has separate type nos. for each market, due to country approvals. The mains voltage is determined by the type nos. of the unit, there are only two internal mains voltage settings (a jumper) on the SMPS, 100/120V and 230/240V AC (P108, when mounted = 100/120V). O AB Front line service R TE N E -C The BeoSound 4 unit has been developed for simple module exchange to follow the on-site service strategy.
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PIN-code 1. PIN-code The product has a 4 digit PIN-code, of the user´s own choice, which must be entered if the product has been disconnected from the mains for 15-30 min. If the PIN-code is activated, and the product has been without mains for 15-30 min., the user will be asked to enter the 4 digit PIN-code when the product is switched on. O AB Before the product is handed in to service it is a good idea to ask the customer to deactivate the PIN-code.
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1. PIN-code Activate the PIN-code Select the SETUP menu. Press l twice and then STOP to bring up the PINCODE SETUP menu. Enter the 4 digit Pin-code. Re-enter the code to confirm it and press GO. If you want to change or delete the PIN-code, enter the correct PIN-code and press GO. It is now possible to change the PIN-code or delete the PIN-code.
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Warnings 1. Warnings ESD O AB When electrical replacements or disassembly all taking place, use an ESD-mat. The internal electronics are very sensitive to static electricity. When mains voltage on BeoSound 4 is required, remove the connection from BeoSound 4 to the ESD mat. E -C STATIC ELECTRICITY MAY DESTROY THE PRODUCT Laser exposure R TE N BeoSound 4 contains a laser system and is classified as a class 1 laser product. BeoSound 4 must be opened by qualified personal only.
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1. Final check after repair Final check after repair Isolation test O AB Each set must be insulation tested after having been dismantled. Make the test when the set has been reassembled and is ready to be returned to the customer. Flashovers must not occur during the testing procedure! Make the insulation test as follows: Short-circuit the two pins of the mains plug and connect them to one of the terminals of the insulation tester.
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Fault flow chart 2. Fault flow chart Instructions • • O AB • Instructions before trouble shooting in the fault flow chart: In the following fault flow chart BeoSound 4 is named BS4. Never connect or disconnect a socket, when the power is turned on. Disconnect the mains supply and wait minimum 30 seconds for the electrolytic capacitors to discharge. When measuring voltages BS4 must be in CD mode, When fault finding in CD use Bang & Olufsens test CD 3634031 (SBC444A).
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2.
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Fault flow chart 2.
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2.
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Fault flow chart 2.
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2.
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Fault flow chart 2.
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2.
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Fault flow chart 2.
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2.10 Fault flow chart No Yes Connection to PCB8, Tacho OK? Re-establish connection Change PCB8, Tacho OK? Replace PCB2, Master O AB Fault symptom: - The front glass slides to the top without stopping above the keyboard Possible causes: - PCB8, Tacho TE N E -C Replace motor unit H v/ EN Possible causes: - PCB12, Switch - PCB2, Master Check if the magnet on the door mechanism is mounted See figure page 2.
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Fault flow chart 2.
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2.
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R TE N e l p E -C O AB d te H v/ EN m o S EN KS RI o N c t 3.
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Service Mode 3.
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Service tips 4. Service tips Service tool R TE N E -C O AB Along with a Cable kit for ServiceTool (3375397) and a P.I.T. box (3375055) it is possible to flash-update the FEP software. From the service module a special service cable goes to the BeoSound 4 unit. From the service module another service cable goes to a laptop. On the service module, you are able to select which software you want to flashupdate via a switch.
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4. Repair tips Repair tips CD The diodes and the laser are very sensitive to static electricity. Damaging the diodes or laser may reduce their lives dramatically. So be sure, that the workstation is protected against static electricity. O AB The product may not be connected to the mains, when the CD mechanism or 96Module is removed. E -C Normally, the CD will find focus first, and when that has been found, it will start the turntable motor.
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Replacement of modules 5. Replacement of modules Replacement of the PCB61 (SMPS) When replacing PCB61 (SMPS), remember to check jumper at 61P108 E -C O AB Mains voltage 115V = jumper at 61P108 must be mounted Mains voltage 220V = jumper at 61P108 must be removed Main R TE N 61P108 H v/ EN Replacement of the Main microcomputer PCB6 (µPH8) When replacing the PCB6 remember to move the EEPROM 6IC6 from the defective PCB6 to the new PCB6, because it contains valuable data (Serial no., PINcode etc.
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5. Replacement of modules Disassembly overview PCB Module name Page R TE N E -C O AB 1 Socket 5.5 2 Master 5.6 3 Magic 5.8 4 Light 5.9 5 Turn wheel 5.10 6 Main microprocessor 5.7 7 Codec 5.11 8 Tacho 5.12 9 Headphone 5.13 10 Display 5.14 11 SD/MMC card reader 5.15 12 Switch 5.16 DAB 5.20 61 SMPS 5.17 85 FM tuner 5.18 H v/ 37Module 96Module 5.19 5.21 Clamper cover 5.22 Clamper unit 5.23 Base 5.24 EN CD unit Cabinet RI Door mechanism 5.
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BeoSound 4 in service position 5.
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5. + 5.
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Replace PCB1, Socket + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis 5.
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5. Replace PCB2, Master + 5.3 BeoSound 4 in Service Position + 5.
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Replace PCB2, Master 5. - Remove screws 6x TX10 E -C O AB N - Remove plugs on the back of PCB2 TE 2P1005 2P1013 2P1010 R 2P1012 2P1011 H v/ EN S EN KS RI - Transfer EEPROM software T EK EL EEPROM IC3 PCB6 IC6 EEPROM IC SOCKET IK N RO Use IC-pliers for replacement (part no.
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5. Replace PCB3, Magic + 5.3 BeoSound 4 in Service Position + 5.
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Replace PCB4, Light + 5.3 5. BeoSound 4 in Service Position + 5.
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5.10 + 5.
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Replace PCB7, Codec + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis 5.
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5.12 Replace PCB8, Tacho + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis + 5.
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Replace PCB9, Headphone + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis + 5.8 Remove PCB3, Magic 5.
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5.14 Replace PCB10, Display + 5.
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Replace PCB11, SD/MMC card reader + 5.3 5.
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5.16 Replace PCB12, Switch + 5.3 BeoSound 4 in Service Position + 5.
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Replace PCB61, SMPS + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis 5.
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5.18 Replace PCB85, FM tuner + 5.3 BeoSound 4 in Service Position + 5.
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Replace 96Module, CD unit + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis 5.
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5.20 Replace 37Module, DAB + 5.3 BeoSound 4 in Service Position + 5.
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Replace Cabinet + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis + 5.8 Remove PCB3, Magic 5.21 + 5.
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5.22 Replace clamper cover + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis + 5.
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Replace Clamper unit + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis 5.23 + 5.
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5.24 Replace Base + 5.3 BeoSound 4 in Service Position + 5.
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Replace door mechanism + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis 5.25 + 5.23 Remove Clamper unit + 5.
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5.26 Replace drivebelt + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis + 5.
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Replace Finger niche + 5.3 5.
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5.28 Replace keyboard + 5.3 BeoSound 4 in Service Position + 5.15 Remove SD/MMC card reader + 5.
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Replace motor + 5.3 BeoSound 4 in Service Position + 5.4 Remove Chassis 5.29 + 5.
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5.
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Specification guidelines for service use Specification guidelines for service use With FM and RDS O AB BeoSound 4 Type 2851 EU 230V Type 2852 GB 230V Type 2853 US 120V Type 2854 JP 100V Type 2855 AUS 240V Type 2857 TWN 120V Type 2858 KOR 230V Type 2859 LAT 230V Type 2860 CHK 230V Preamplifier section Intermod. distortion Frequency: AUX in Signal to Noise ratio: AUX, A-weighted, volume 80 Channel separation Channel unbalance ≤0.1%, IHF E -C 20Hz – 20kHz N ≥90dB, typ. 97dB ≥50dB, typ.
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6. Specification guidelines for service use Dynamic range (1kHz) Channel unbalance (1kHz) ≥92dB ≤±1dB THD+Noise: 1kHz, 0 dBFS, volume 76 -85dB / -75dB with volume 76 SD Player/recorder Storage media R TE N E -C O AB Secure Digital cards (SD) MultiMediaCard (MMC) Or 100% SD SanDisk compatible Capacity All capacity Audio Codec playback MP3 format: Sampling frequencies: 8, 11.025, 12, 16, 22.05, 24, 32, 44.
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Specification guidelines for service use AUX in L/R AUX out L/R Power Link Front & Rear Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 O AB Audio Aux Input/Output x 1 6. Phono 2V RMS 22 – 47kW Phono 1.3V RMS ±0.2 <1kW PL ON = >2.5V, OFF = <0.5V Signal GND Audio L out 0V to 2V RMS PL speaker ON = >2.5V, OFF = <0.5V Audio R out 0V to 2V RMS Data: High >3.5V. Low <0.
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6.
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Wiring diagram AB Wiring diagram P1 10 < < >< >< >< >< >< 05 TE N Turn Wheel > > > > P1 Turn Wheel P2 > > < < > > > > > > > > > > > > < > > > > R < > > 03 Magic < 04 P1 Light P1 < 6277878 W04 < P1 04 P1 Light < 6277875 W10 < P3 P3 P1 Switch < > 6200100 W16 < > P2 < < Master 6200095 W09 < < < < < < < < < < > > > > > > > > > > > > > > > > > > > > > > >< >< < < < < < < 6277877 W18 < > P1009 > > > > < > > P1003 6200098 W11 P1008 < P1004 KS <
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8.1 Available parts 8.1 Available parts AB Available parts BeoSound 4 8.1 9004 1 O E -C 3 3 1 3 TE N See page 8.5 Incl. PCB12 See page 8.4 2 1 10 1 9008 1 5 4 5 4 5 1 5 4 1 1 6 6 9009 W9 EN 3 Incl. pos. nos. 9011, W9, PCB9 9 S 9010 EK EL 9003 Incl. pos. no. 5 9007 5 KS 9002 1 RI EN 1 1 Incl. pos. no. 5 1 12 See page 8.
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Available parts BeoSound 4 9001 9002 9003 9004 9005 9006 9007 9008 9009 Movable mechanics incl. PCB12 Front Glass Screw cover, left Screw cover, right Cabinet Base incl. pos. no. 5 Wire guide incl. pos. no. 5 Mains cable EU/LAT Mains cable UK Mains cable JP Mains cable AUS Mains cable US/TWN Mains cable CHINA Mains cable KOR Packing f/headphone Dynamic speaker W9 6200095 Wire 30 pole 3Module 3110016 PCB3, Magic incl. pos. nos.
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8.3 Available parts Front 4 9012 7 7 Incl. 2 x PCB4 7 4 O AB 9013 7 Incl. pos. no. 9016 TE N E -C 9016 R 7 H v/ 7 EN KS RI 1 Incl. PCB5 1 5 EN 9014 7 7 S 7 7 1 9015 T EK EL 11 1 5 RO Incl. PCB5 Finger niche incl. 2 x PCB4 Front cover incl. pos. no.
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Available parts CD unit and Motor 8.
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8.5 Available parts Electrical chassis 1 9025 1 1 37 1 O AB 6 1 1 1 1 1 1 1 1 H v/ 61 9030 EN 1 1 1 RI 9027 1 S 1 EN 1 7 1 KS 85 3110010 3110012 3110011 2570016 3110013 3160344 Holder f/PCB2 and PCB37 Holder f/PCB61 Holder f/PCB7 and PCB85 Ground connector Holder f/PCB1 Cover 1Module 8002592 PCB1, Socket 2Module 8002593 PCB2, Master incl.
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Available parts Wire bundles See wiring diagram page 7.1. The part no. is printed on the diagram above the wire bundle, as shown. P1 10 < < < < 6200094 W08 < < < < P1001 Display 02 E -C O AB < < >< >< >< >< >< Parts not shown 3395296 3375490 3634031 3624018 R TE N ServiceTool 3375055 3375397 6270857 6270852 6277439 8008922 H v/ EN > > > > > < < < < < < < Master Back-up suitcase Product cover Test CD - SBC 444A Du Pont Polishing Cloth P.I.T.
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8.
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Available parts 8.8 Floor Stand 2180 1218011 9102 1 Incl. pos. nos. 9102, 1 3 9301 3 3 R TE N E -C O AB 9101 9302 H v/ EN KS RI 9301 9103 EN S 9303 T EK EL 9104 2 1 2 3 2046017 3390065 2019035 Screw 6 x 16mm Bag w/parts Screw 4 x 12mm 9301 9302 9303 3396329 3016011 3392485 Foam packing, set Guide f/cover plate Outer carton 3390083 3507399 3507661 Cable manager Guide Guide f/cable manager IK Tube incl. pos. nos.
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8.
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R TE N E -C O AB H v/ EN S EN KS RI T EK EL IK N RO
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R TE N E -C O AB H v/ EN S EN KS RI T EK EL IK N RO Bang & Olufsen DK-7600 Struer Denmark Phone +45 96 84 11 22* Fax +45 97 85 39 11 3538035 04-06