Bang & Olufsen BeoCenter 2 MK II Service Manual
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Bang & Olufsen BeoCenter 2 MK II Service Manual

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BeoCenter 2 MK II
Type 2802, 2825, 2526, 2827, 2828, 2829, 2830, 2831,
2832, 2833, 2834, 2835, 2836, 2837, 2838
From serial no. 19368112
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 !

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Summary of Contents for Bang & Olufsen BeoCenter 2 MK II

  • Page 1 BeoCenter 2 MK II Type 2802, 2825, 2526, 2827, 2828, 2829, 2830, 2831, 2832, 2833, 2834, 2835, 2836, 2837, 2838 From serial no. 19368112 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 !

  • Page 2: Table Of Contents

    CONTENTS Survey of modules ..................1.1 How to service ....................1.2 PIN-code ....................... 1.3 Warnings ...................... 1.5 Adjustments ....................2.1 Service menu ....................3.1 Service tips ....................4.1 Replacement of modules ................5.1 Specification guidelines for service use ............6.1 Overall blockdiagram ..................

  • Page 3: Survey Of Modules 1.1

    Survey of modules 1.1 BeoCenter 2 MKII – Master Unit PCB2 Top Interface PCB3 Clamper Light PCB4 IR receiver two (right) PCB5 IR receiver one (left) PCB7 Keyboard left/right PCB8 Keyboard left/right PCB9 Display PCB77 DVD Main Board Assy PCB95 DVD Traverse Mechanism BeoCenter 2 – Socket Unit PCB6 µP H8-4 PCB10 AV panel DAB PCB37 DAB module PCB50 Analog sound engine PCB60 SMPS PCB85 Tuner EU/US/JPN...

  • Page 4: How To Service

    1.2 How to service How to service Front line service Both the Master and the Socket Unit has been developed for simple module exchange to follow the on-site service strategy. Module exchange is possible on-site, at the dealer or in the service workshop whatever is most convenient in each case. For on-site service a back-up suitcase must be used. Module exchange is the recommended way to perform service, due to the fact that most of the modules are multi layer based, and most of the circuits are on a single main PCB. An electrical fault symptom can be removed during one visit to the customers home if you bring a BeoCenter 2 back-up suitcase with you. Is it a mechanical symptom, the particular part must be brought with you separately. The Socket Unit and the Master Unit must be connected when testing, because the Socket Unit contains the power supply. Service documentation Service documentation for BeoCenter 2 will be a Service Manual with part nos. for the back-up suitcase, electrical and mechanical parts, user’s guides etc.
  • Page 5 How to service 1.3 Converting mains voltage supply The Master Unit has only one variant for all markets. The Socket Unit has separate type nos. for each market, due to country approvals. The mains voltage is determined by the type nos. of the Socket Unit, there are only two internal mains voltage settings (a jumper) on the SMPS, 100/120V and 230/240V AC. (X103, when mounted = 100/120V). Use the ServiceTool to reprogramme the DVD region code and tuner setup. The only variant on the Master Unit : 2802 The variants on the Socket Unit : Type no. Area Region Mains Voltage Market 2825 EU2 DVD region 2 230V Austria, Belgium, Croatia, Czech Repub., Denmark, Egypt, Finland, France, Germany, Greece, Holland, Hungary, Israel, Italy, Lebanon, Norway, Oman, Poland, Portugal, Qatar, Saudi Arabia, Slovak Rep., Slovenia, Spain, Sweden, Switzerland, Turkey 2826 EU3 DVD region 3 240V Indonesia, Malaysia, Singapore, Thailand 2827 EU4 DVD region 4 230V Argentina, Chile, Peru, Uruguay...

  • Page 6: Pin-Code

    1.4 PIN-code 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. Before the product is handed in to service it is a good idea to ask the customer to deactivate the PIN-code. The PIN-code is activated when the product is shipped from Bang & Olufsen. Refer to the user guide for further information. PIN-code active prior to service If the PIN-code is not deactivated prior to service you must use the Service code to unlock the product. Service code The service code unlocks the product, but does not affect the pin-code setting gives you 12 hours service time Entering the Service code 1. When the product asks for PIN-CODE press and hold for 3 seconds. 2. The Master code menu appears. 3. Enter the Service code: 1 1 1 1 1. Important notice concerning Service time The service time is active as long as the product is connected to the mains, including Standby. To obtain maximum service time: Only connect the product to the mains while you are performing actual service on the product. When the service time is expired, the product can only be unlocked by entering the PIN-code or the Master code. Registration of the modules The modules will be registered to the product in the following situations: the product has been connected to the mains for more than 12 hours, including Standby time.
  • Page 7 PIN-code 1.5 Activate the PIN-code Select the SETUP menu. Press 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. Enter the PIN-code If the PIN-code is activated and the product is disconnected from the mains for more than15-30 minutes, a PINCODE menu appears as soon as the product is switched on. Enter the PIN-code, and the product starts again. If the PIN-code has been forgotten If the PIN-code has been forgotten the only way to unlock the product again is by entering a 5 digit Master-code. The Master-code is ordered by sending a request via the Retail System. When the product prompts for a PIN-code, press and hold down to bring up the MASTERCODE menu. Enter the Master-code and press GO. This will deactivate the PIN-code and reactivate the product. Product locked by PIN-code The product is locked by PIN-code when: The PIN-code is activated and the mains is disconnected for more than 15- 30 minutes. The product is unlocked when the PIN-code is entered. The PIN-code counter is set to 5 attempts within 3 hours. When a wrong PIN-code has been entered 5 times within 3 hours, the product cannot receive any commands for a period of 3 hours. After this period the PIN-code counter is reset. The product must be in standby mode to activate the timer.

  • Page 8: Warnings

    1.6 Warnings Warnings When electrical replacements or disassembly is taking place, use a ESD-mat. The STATIC ELECTRICITY internal electronic are very sensitive to static electricity. MAY DESTROY THE PRODUCT When mains voltage on the BeoCenter 2 is required, remove the connection from the BeoCenter 2 to the ESD mat. Laser exposure The BeoCenter 2 contains a laser system and is classified as a class 1 laser product. The BeoCenter 2 must only be opened by qualified personal only. General Warnings Wear cutton cloves to avoid any fingerprints on the product. The aluminium and display surface on the product is very sensitive, so handling should be done with great care to avoid damage. When transporting the BeoCenter 2 it is recommended to use the product cover, part no. 3375021. The interface cable is very sensitive to sharp bends and other large mechanical influence. Also be sure that the plugs in each end, are connected correctly. Cleaning Clean the BeoCenter 2 surfaces using a lint-free cloth which you have wrung firmly in lukewarm water. Never use alcohol or other solvents to clean any parts of the BeoCenter 2.

  • Page 9: Adjustments

    Adjustments Adjustments Digital Audio Broadcasting (DAB) The DAB module (type 2203) for the BeoCenter 2 Socket Unit will automatically adapt to the band and frequency table preprogrammed in the application software for the particular Socket Unit type number. If the band and frequency table setup from the factory do not correspond to the particular country where it is used, the PC-based ServiceTool program must be used.

  • Page 11: Service Menu

    Service menu Service Menu There are two ways to enter the service menu, either by the keyboard or the Beo4 remote. Keyboard: With the BC2 turned on, press “list” -> “Setup” then press within 3 sec. Press 0 0 GO. Beo4 remote: With the BC2 turned on, press “menu”->...
  • Page 12 Service menu ...NVMEM 1 4F 00000002 10/11/02… 2 08 16000000 9/11/02… 3 4F 00000002 8/11/02… 4 08 16000000 7/11/02… 5 4F 00000002 7/11/02… 6 08 16000000 6/11/02… 7 4F 00000002 5/11/02… 8 08 16000000 5/11/02… 9 4F 00000002 4/11/02… ..--/--/--… ..
  • Page 13 Service menu The Error LIST Is a list of all the possible errors in BC2, it’s divided into, error_code with the sub parameter error_type, error_type which has 3 sub parameter error_param1, error_param2 and error_param3. When ever a error that can be related to HW, SW or MEK, the cause is described, sometimes there can be more than one cause for the corresponding error, all the possible causes are listed with the most likely listed first.
  • Page 14 Service menu EP 1 = 07 IIC1 2 SLAVE TRANS BUF ERR Use EP2 EP 1 = 08 IIC1 2 ICB ERROR Use EP2 EP 2 = D0 CLOCK IIC ADDR (IC162) Av Panel EP 2 = 88 A ENG IIC ADDR (IC300) Analog Sound Engine EP 2 = 22 ST RDS IIC ADDR...
  • Page 15 Service menu ICB L7 RESOURCE STILL RUNNING µP H8 Module ICB L7 RESOURCE ALLREADY FREE µP H8 Module ICB L7 ILLEGAL IOP SERVICE µP H8 Module ICB L7 ILLEGAL IOP OBJECT µP H8 Module ICB L7 TELEGRAM FLUSHED µP H8 Module ICB L7 RESOURCE DISABLED µP H8 Module ICB L7 HW CLOCK ILLEGAL COMMAND...
  • Page 16 Service menu ATI NO TX ALLOWED EP 1 = 00 Av Panel or Connection between Socket Unit and Test equipment EP 1 = 01 Av Panel, Top Interface, or interface cable (connection or cable) ATI TLG WAS BREAK SYNCHED EP 1 = 00 Av Panel or Connection between Socket Unit and Test equipment EP 1 = 01...
  • Page 17 Service menu EP 1+2 = 0005 RMP PAUSE RELEASE Use EP3 EP 3 = 0A RMP PAUSE RELEASE TIMEOUT No error EP 1+2 = 0006 RMP WIND Use EP3 EP 3 = 0B RMP WIND TIMEOUT No error EP 1+2 = 0007 RMP REWIND Use EP3 EP 3 = 0C...
  • Page 18 Service menu EP 1 = 00 BRC NOT COMPLETED Check connection between Socket/ Master Unit, AV Panel, Top interface, interface cable EP 1 = 01 DENIED BRC REQUEST Check connection between Socket/ Master Unit, AV Panel, Top interface, interface cable EP 1 = 02 BRC DENIED Check connection between Socket/...
  • Page 19 Service menu 5. Default Settings ...Default Settings Set Default Settings? Yes No ^------ 6. Keyboard Test ...Keyboard Test Key: CNTL_STEP_UP_KEY Data: 0 Valid Key Names are CIFFER_0_KEY REWIND_KEY CIFFER_1_KEY GO_KEY CIFFER_2_KEY CNTL_WIND_KEY CIFFER_3_KEY CNTL_REWIND_KEY CIFFER_4_KEY CNTL_STEP_UP_KEY CIFFER_5_KEY CNTL_STEP_DW_KEY CIFFER_6_KEY DISC_KEY CIFFER_7_KEY RADIO_KEY CIFFER_8_KEY...
  • Page 20 3.10 Service menu 8. DVD Service While playing DVD with the BeoCenter 2, you are able to recall a service menu, onscreen. When entering this menu the Beo4 IR codes is send to the Master Unit which translate this into Test IR codes..DVD Service Enter IR Command While the DVD is playing, and you are in “DVD service”...
  • Page 21 Service menu 3.11 9. DAB service display DR ROCK 227. 360 VB003 CHN 12C SQ002 160 KB/S Program name Frequency “VB” Viterbi error rate (0 to 128). Performs error-correction of the received noise desturbed signal “SQ” Signal Quality 0 - 15: Good reception 16 - 30: Borderline reception...
  • Page 22 3.12...

  • Page 23: Service Tips

    Service tips Service tips Doing fault searching and measurements, there is some special features you should be aware of. 1. In order to power up, the Master Unit and Socket Unit needs to be connected thrugh the interface cable, due to the fact that the main SMPS is placed in the Socket Unit, along with the RGB Video processor and microprocessor.

  • Page 25: Replacement Of Modules

    Replacement of modules Replacement of modules Modules that can be replaced Master unit Replace Keyboard left ..........5.4 Replace Keyboard right ..........5.5 Replace Display ............5.6 Replace Clamper ............5.7 Replace Clamper cover ..........5.8 Replace Gearbox ............5.9 Replace DVD PCB ............
  • Page 26 PCB6 µPH8-4 module Testing a PCB6 (µPH8-4) Flash version module It is possible to use a µPH8-4 module from a similar type of product for test purpose, but the serial no. and other important adjusting settings will not match the product correctly. Therefore it is important to replace the original µPH8-4 module after a test.
  • Page 27 BeoCenter 2 Master Unit in service position ➢1 Socket Unit - Remove cable ➢2 - Loosen excentric locks 180º 180º ➢ - Lift off Keyboards - Place keyboards as shown - with cables attached Open cableholders...

  • Page 28: Replace Keyboard Left

    Replace Keyboard left ➢1 Socket Unit - Remove cable ➢2 - Loosen excentric lock 180º ➢ - Lift off Keyboard ➢ - Remove cable on backside of Keyboard Cable lock!!

  • Page 29: Replace Keyboard Right

    Replace Keyboard right ➢1 Socket Unit - Remove cable ➢2 - Loosen excentric lock 180º ➢ - Lift off Keyboard ➢ - Remove cable on backside of Keyboard Cable lock!!

  • Page 30: Replace Display

    Replace Display + 5. BeoCenter 2 in service position - Remove screws TX10 - Remove cables connecting the Display Cable lock!! - Disassembly of display! - Remove screws...

  • Page 31: Replace Clamper

    Replace Clamper + 5. BeoCenter 2 in service position + 5. Remove Display - Remove screws - Remove cables - Remounting Clamper! - Place a CD in clamper and allign as shown - Fasten screws when clamper is correctly alligned...

  • Page 32: Replace Clamper Cover

    Replace Clamper cover + 5. BeoCenter 2 in service position + 5. Remove Display + 5. Remove Clamper - Remove screws - Lift and pull off clamper cover...

  • Page 33: Replace Gearbox

    Replace Gearbox + 5. BeoCenter 2 in service position + 5. Remove Display + 5. Remove Clamper + 5.8 Remove Clamper cover - Remove screws TX10 - Remove plug Cable lock!! - Lift off Gearbox...

  • Page 34: Replace Dvd Pcb

    5.10 Replace DVD PCB + 5. BeoCenter 2 in service position + 5. Remove Display TX10 - Remove screws as shown - Remove cables Cable lock!! - Lift off gearbox including clamper - Remove plugs P02 P10 P0...
  • Page 35 Replace DVD PCB 5.11 - Remove screw - Remove plugs P01 P102 P101 P10 P51 Located on backside...

  • Page 36: Replace Dvd Unit

    5.12 Replace DVD unit + 5. BeoCenter 2 in service position + 5. Remove Display TX10 - Remove screws as shown - Remove cables Cable lock!! - Lift off gearbox including clamper - Remove plugs P02 P10 P0...
  • Page 37 Replace DVD unit 5.1 - Remove screw - Remove plugs P102 2P0 - Carefully remove DVD unit - Remove cable 2P1 Special tool for Bezel No. 21...

  • Page 38: Replace Pcb2, Top Interface

    5.1 Replace PCB2, Top Interface + 5. BeoCenter 2 in service position + 5. Remove Display + 5.10 Remove DVD PCB + 5.12 Remove DVD unit - Remove screws - Remove cables Cable lock!! - Lift off PCB 2...

  • Page 39: Replace Clamper Drive Belt

    Replace Clamper drive belt 5.15 + 5. BeoCenter 2 in service position + 5. Remove Display + 5. Remove Clamper - Remove screws ➀ ➁ - Remove split ➀ - Loosen spring lock ➁ - Remove screws - Dismantle gear...

  • Page 40: Replace Clamper Motor

    5.1 Replace Clamper motor + 5. BeoCenter 2 in service position + 5. Remove Display + 5. Remove Clamper + 5.15 Remove Drive belt - Remove motor by cutting off dampers...

  • Page 41: Replace Gearbox Drive Belt

    Replace Gearbox drive belt 5.1 + 5. BeoCenter 2 in service position + 5. Remove Display - Remove screws - Disassemble as shown Drive belt - When remounting, holes must be alligned...

  • Page 42: Replace Gearbox Motor

    5.18 Replace Gearbox motor + 5. BeoCenter 2 in service position + 5. Remove Display - Remove screws - Disassemble as shown Remove cable for motor - Remove gearwheel - Remove screws and pull off motor...

  • Page 43: Servicetest Position

    Servicetest position 5.1 + 5. BeoCenter 2 in service position - Placement of magnetic tester...
  • Page 44 5.20 Socket unit service position - Remove screws Master Unit LINE VIDEO S-VIDEO CTRL TX10 L DIG.OUT - Pull off cover as shown...

  • Page 45: Replace Pcb50, Analog Sound Engine

    Replace PCB50, Analog sound engine 5.21 + 5.20 Socket unit in service position PCB50 - Placement of PCB50 - Remove cables at PCB50 50P 50P 50P5 - Remove screws TX10 - Remove cables at PCB10 10P22 10P2...

  • Page 46: Replace Pcb85, Tuner Module

    5.22 Replace PCB85, Tuner module + 5.20 Socket unit in service position - Placement of PCB85 PCB85 - Remove screws TX10 - Tilt PCB85 as shown - Remove cables on backside of PCB85 85P100 85P102 85P10 85P10...

  • Page 47: Replace Pcb60, Switch Mode Power Supply

    Replace PCB0, Switch mode power supply 5.2 + 5.20 Socket unit in service position - Placement of PCB0 PCB0 - Remove cables 0J 0J - Remove screws TX15...

  • Page 48: Replace Pcb6, Microprocessor

    5.2 Replace PCB, Microprocessor + 5.20 Socket unit in service position + 5.21 Remove PCB50, analoge sound engine PCB - Placement of PCB - Pull up PCB - Remove cables from PCB...

  • Page 49: Replace Pcb0, Socket Panel

    Replace PCB10, Socket panel 5.25 + 5.20 Socket unit in service position + 5.21 Remove PCB50, analoge sound engine + 5.22 Remove PCB85, Tuner module + 5.2 Remove PCB0, Switch mode power supply + 5.2 Remove PCB, Microprocessor + 5.2 Remove PCB, DAB module - Placement of PCB10 PCB10 - Remove screws on Socket Panel front...

  • Page 50: Replace Pcb37, Dab Module

    5.2 Replace PCB, DAB module + 5.20 Socket unit in service position + 5.22 Remove PCB85, Tuner module - Remove cables 10P2 10P01 - Remove screws holding PCB TX10...

  • Page 51: Specification Guidelines For Service Use

    Specification guidelines for service use SPECIFICATION GUIDELINES FOR SERVICE USE BeoCenter 2 MK II Type no. and markets See page .3 Master unit Dimensions W x H x D 372 x 50 x 243 mm Weight 4.5 kg Cabinet finish...
  • Page 52 Specification guidelines for service use Connections Master unit Headphone / Mini-jack female Ø 3.5 mm 8 - 32 ohms Socket unit Audio R Out 0.2 - 2 Vrms ≤kW AV (Scart) Pin  Audio R In 0.2 - 2 Vrms ≥0kW Pin 2 Audio L Out 0.2 - 2 Vrms ≤kW Pin 3...
  • Page 53 Specification guidelines for service use Master Link Pin  Data- -0.4V ±0.V Pin 2 Data+ +0.4V ±0.V Pin 3 ML sense Pin 4-8 N.C. Pin 9 ATI transmit Pin 0 ATI receive Pin  -supply voltage -7V to -5V (in St By -3V to -5V) Pin 2 +supply voltage +7V to +5V (in St By +3V to +5V) Pin 3...

  • Page 55: Overall Blockdiagram

    Overall block diagram Overall block diagram...

  • Page 57: Wiring Diagram

    Wiring diagram Wiring diagram Wiring diagram CN102 6277707 6270864 > > P103 P100 < < < < < < < < < Analog Sound Engine DAB < < < < DVD Traverse Mechanism < < DVD Main Board Assy < <...
  • Page 58 Available parts Available parts Available parts BeoCenter 2 MKII 9005 9001 Incl. pos. nos. 9005, 9007 9006 9002 9007 9008 9009 9003 9010 See page 8.3 and 8.4 9004...

  • Page 59: Available Parts

    Available parts BeoCenter 2 MKII 9001 3322000 Display 9002 3375420 Light guide 9003 2776084 Keyboard left + right 9004 3320966 Clamper, complete 2732147 Belt 8400005 Motor 3164006 Clamper/cover 3917006 Foam f/clamper 9005 3356077 Magnet 9006 3162044 Cover incl. pos. nos. 9005, 9007 9007 3907074 Rubber part f/cover 9008...
  • Page 60 Available parts Bottom 9020 Incl. pos. nos. 9020, 9021 x 4 pcs. 9021 9025 Incl. pos. no. 9025 9022 9023 Incl. pos. nos. 9022, 9025, 9028 9026 9027 9028 9027 9029 9029...
  • Page 61 Available parts Bottom 9020 3320157 Cover f/CD 9021 2938033 Rubber bushing 9022 3947022 Tape f/bottom 9023 3169013 Cover f/socket 9025 2622554 Thermal conductive rubber 9026 3114114 Bottom incl. pos. nos. 9022, 9025, 9028 9027 3103013 Aluminium foot 9028 3103000 Rubber foot, small 9029 3103001 Rubber foot, large 6200036 Cable w/holder, right...
  • Page 62 Available parts Socket unit 9040 Incl. PCB1, PCB6, PCB50 9041 9048 Incl. pos. no. 9043 9042 9043 9044 9045 9046 9047...
  • Page 63 Available parts Socket unit 9040 3114045 Top f/socket unit 9041 8052219 Socket chassis (PCB1, PCB6, PCB50) 9042 3114048 Bottom incl. pos. nos. 9043 9043 3170085 Insulation piece 9044 3950000 Cover f/sockets 3950015 Cover f/sockets (BC2 w/DAB) 9045 6100245 Mains cable, EU 6100328 Mains cable, GB 6100306 Mains cable, US 6100247 Mains cable, JPN...
  • Page 64 Available parts Packing BeoCenter 2 3396212 Set of foam 3917224 Foam foil 3392793 Outer carton Socket unit 3396217 Set of foam 3917224 Foam foil 3392795 Outer carton Wire bundles See wiring diagram page 7.3. The part no. is printed on the diagram above the wire bundle, as shown. 6277707 P103 <...
  • Page 65 Available parts Floor stand 2170 Incl. pos. no. 7 9501 9502 9503 Incl. pos. no. 2 9504 9501 3459446 Top plate incl. pos. no. 7 9502 2950033 Tube 9503 3459002 Cover 9504 2752023 Bottom incl. pos. no. 2 3390667 Bag w/3 x 2 screws, 2 x hexagon spanners, 6 x spikes pos. no. 3, 2 x spacer 3103392 Foot 3103390 Spike 3103325 Spacer...
  • Page 66 Available parts Stand/Wall bracket 2171 9510 9511 9512 9513 Incl. pos. no. 5 9514 9515 9510 3459448 Top plate 9511 3034400 Cable holder 9512 2950034 Tube 9513 3459447 Cover 9514 2752029 Bottom incl. pos. no. 5 9515 3459449 Wall plate 3390626 Bag w/2 x screws, 2 x hexagon spanners 3103325 Foot 2058016 Screw 6 x 100mm...
  • Page 68 Bang & Olufsen DK-7600 Struer Denmark Phone +45 96 84 11 22* Fax +45 97 85 39 11 3538050 11-06...

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