Bang & Olufsen BeoLab 20 Скачать руководство пользователя страница 63

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Available parts 7.6

Connector panel

9040

3948141 Set of gaskets

9041*

3458370 Connector panel

9042*

3458366 Connector board

9043*

2815067 Grounding plate

9044

3358592 Heat sink

9045*

3458364 Lid

9046*

3458368 Lid

02.1Module 8007872 PCB02.1, Input Panel

35.1Module 8007783 PCB35.1, Amplifier

35.2Module 8007783 PCB35.2, Amplifier

68Module 8007874 PCB68, Switch Panel

Screws etc.

2019025 Screw 4 x 12mm

7530118 Cable holder

2052011 Screw 3 x 10mm

3376236 Gap pad 1 x 13 x 13mm

2013255 Screw 3 x 10mm

2013195 Screw 3 x 16mm

3376238 Gap pad 1.5 x 20 x 20mm

2625002 Washer

2013020 Screw 3 x 8mm

*Remember to order
pos. no. 9040 - Set of gaskets

Содержание BeoLab 20

Страница 1: ...ce Manual version 1 0 English German French Italian Spanish Dutch Japanese Korean and Simplified Chinese versions are available in the Retail System This Service Manual must be returned with the defective parts back up suitcase 30 4 39 3 ...

Страница 2: ...s 2 1 Fault flow chart 2 5 Survey of plugs and pins 2 11 Adjustments Final check after repair 3 1 Replacement of modules 4 1 Specification guidelines for service use 5 1 Block diagram 6 1 Wiring diagram 6 3 Available parts 7 1 Change log Ver 1 0 Original release ...

Страница 3: ...47 89 Modules PCB02 1 Input Panel PCB02 2 Connector Interface PCB04 Power Supply PCB30 Digital Sound Engine PCB35 1 Amplifier PCB35 2 Amplifier PCB47 LED Indicator PCB48 1 NTC PCB48 2 NTC PCB48 3 NTC PCB68 Switch Panel PCB89 Wireless Power Link Rx Speaker units Tweeter Midrange Woofer ...

Страница 4: ...e module s Handling the error code error log a Make a note of the error code on the Exchange Module section and print it b Use the error code when troubleshooting c Return the error code in the Retail Order System d Before returning the product to the customer clear the error code Preparations before service Fault explanation and demonstration Before troubleshooting is initiated let the customer d...

Страница 5: ...DESTROY THE PRODUCT ESD ESD Mat Waste of Electrical and Electronic Equipment WEEE Electrical and electronic equipment parts and batteries marked with this symbol must not be disposed of with normal household wastage all electrical and electronic equipment parts and batteries must be collected and disposed of separately Management methods for controlling pollution caused by Electronic Information P...

Страница 6: ...1 4 ...

Страница 7: ...ct Information Usage data 2 3 NTC module test 2 3 Speaker unit test 2 4 Sound test 2 4 Fault flow chart No function and no LED indication 2 5 LED indicator is flashing quickly orange 2 7 No sound from speaker in a wired setup 2 8 No sound from speaker in a wireless setup 2 9 Missing atttenuated or distorted sound from speaker and no error indication in error logs 2 10 Survey of plugs and pins 2 11...

Страница 8: ...a useful explanation If the autocalibration fails the error can be located to an error in either the Digital Sound Engine the amplifier modles or the connection in between If the autocalibration is successful and sound is still faulty it is most likely caused by a speaker driver error or a faulty connection between amplifier modules and speaker drivers LED indicator The LED at the top of the speak...

Страница 9: ...b if not already shown Click next to each item to expand the menus Click System Info Product ID the information screen appears Click the Read button and confirm that product data is read out on the screen This indicates successful communication between the product and the service PC NTC module test Measure the resistance of the NTC module to determine if the fault is caused by a defective speaker ...

Страница 10: ...y have been damaged by accident Sound test It is possible to test each speaker unit amplifier to check the sound quality and determine whether the devices are faulty or healthy For this purpose use ServiceTool and refer to the test section The Sound Test section features a sound generator which allows the user to send a pure sound directly to the speaker unit This feature makes troubleshooting or ...

Страница 11: ...firm that the wired connection between speaker and the source product is OK OK Confirm that the wireless connec tion between the speaker and the transmitter is OK OK Repair setup the wireless connection Yes Fault flow chart Survey of plugs and pins see page 2 11 Confirm that the role switch setting is correct OK Confirm that the role switch setting is correct OK Set role switch Confirm 5V_SB 5V at...

Страница 12: ...Replace PCB04 Power Supply OK Replace PCB02 1 Input Panel Remount PCB04 Power Supply and replace PCB30 Digital Sound Engine Replace PCB04 Power Supply Replace PCB04 Power Supply Disconnect W8 from PCB35 2 P3 Confirm 28V at PCB04 P17 pin 1 2 and 28V at PCB04 P17 pin 8 9 OK Reconnect W8 after test Disconnect W6 from PCB35 1 P3 Confirm 28V at PCB04 P15 pin 1 2 and 28V at PCB04 P15 pin 8 9 OK Reconnec...

Страница 13: ...ad out Error Log and follow instructions thoroughly Make an ID Restore Type in all product ID data from the product label Yes Replace the suspected module related to the high temperature Replace PCB30 Digital Sound Engine Perform an autocalibration OK Replace defective midrange Use ServiceTool to calibrate the new speaker unit Replace defective woofer Use ServiceTool to calibrate the new speaker u...

Страница 14: ...l Confirm P15V 15V at PCB04 P14 pin 5 OK Confirm PS_ON 3 3V at PCB04 P14 pin 7 OK Connnect to a source via Power Link TOSLINK or line in signal Replace PCB35 1 Amplifier Replace PCB35 2 Amplifier Replace PCB04 Power Supply Replace PCB30 Digital Sound Engine Disconnect W6 from PCB35 1 P3 Confirm 28V at PCB04 P15 pin 1 2 and 28V at PCB04 P15 pin 8 9 OK Reconnect W6 after test Disconnect W8 from PCB3...

Страница 15: ...1 Input Panel Confirm P15V 15V at PCB04 P14 pin 5 OK Confirm PS_ON 3 3V at PCB04 P14 pin 7 OK Connnect to a source via Wireless Replace PCB35 1 Amplifier Replace PCB35 2 Amplifier Replace PCB04 Power Supply Disconnect W6 from PCB35 1 P3 Confirm 28V at PCB04 P15 pin 1 2 and 28V at PCB04 P15 pin 8 9 OK Reconnect W6 after test Disconnect W8 from PCB35 2 P3 Confirm 28V at PCB04 P17 pin 1 2 and 28V at ...

Страница 16: ...OK Connect Service Tool and read out Error Log Any suggestions Replace PCB89 Wireless Power Link Rx Replace the suspected module related to the error log Replace PCB30 Digital Sound Engine Disconnect W8 from PCB35 P3 Confirm 28V at PCB04 P17 pin 1 2 and 28V at PCB04 P17 pin 8 9 OK Reconnect W8 after test Survey of plugs and pins see page 2 11 Confirm 28V at PCB04 P15 pin 1 2 and 28V at PCB04 P4 pi...

Страница 17: ...P7 P1 P2 1 23 2 24 1 391 2 40 2 34 1 33 1 24 1 30 PCB02 1 Input Panel Service TOSLINK IN TOSLINK OUT TOSLINK L TOSLINK R POWER LINK POWER LINK P103 P101 P102 1 7 1 30 1 24 PCB47 LED Indicator P1 1 PCB02 2 Connector Interface P2 1 P1 1 PCB68 Switch Panel P1 1 2 PCB89 Wireless Power Link Rx Solder side Component side Tweeter side Cable side BeoLab 20 Connection Panel and switches FREE WALL CORNER L ...

Страница 18: ...2 12 2 12 2 12 ...

Страница 19: ...Information 3 2 PCB30 Digital Sound Engine 3 2 PCB35 Amplifier 3 3 PCB89 Wireless Power Link Rx 3 3 Connecting speaker wirelessly 3 4 Speaker units 3 4 Software update 3 5 Final check after repair Insulation test 3 6 Restore setup 3 6 Software update 3 6 Check sound 3 6 Clean the product 3 6 ...

Страница 20: ...plifier Calibration of the amplifier PCB89 Wireless Power Link Rx when backup function is possible Restore product data from the data backup Connecting speaker wirelessly PCB89 Wireless Power Link Rx when backup function is not possible Order a pre programmed PCB89 Wireless Power Link Rx Connecting speaker wirelessly Speaker units Calibration of speaker units PCB30 Digital Sound Engine Backup Rest...

Страница 21: ... Calibration of the amplifier is necessary when PCB35 1 Amplifier or PCB35 2 Amplifier is replaced The aim is to ensure optimal sound Connect ServiceTool launch BeoLab 20 and follow the procedure under Adjustments PCB89 Wireless Power Link Rx Backup This function is used when PCB89 Wireless Power Link Rx is replaced and it is still possible to communicate with the old module The following data is ...

Страница 22: ...n BeoLab Transmitter 1 Setup with product equipped with Wireless Power Link Tx Press the RESET button on the speaker set speaker in associate mode Delete speaker in menu of the product equipped with Wireless Power Link Tx Perform a rescan in menu of the product equipped with Wireless Power Link Tx Speaker units Calibration of speaker driver Calibration of speaker driver is necessary when a speaker...

Страница 23: ...ool hardware from the service connector on the product to the service PC as shown Run ServiceTool Be sure that ServiceTool is updated to the latest version If not upgrade and restart ServiceTool Select COM port ATI COM port Scroll down to BeoLab section Select BeoLab 20 and click Launch Click on the PRODUCT tab if not already shown Click next to each item to expand the menus Click Software Automat...

Страница 24: ... tester until a voltage of 2 5 kV AC is obtained Maintain the voltage level for one second then slowly decrease the voltage to 0 V AC Restore setup Before the product is handed over to the customer ensure that The position switch FREE WALL CORNER is in correct position The role switch LEFT RIGHT WIRELESS is in correct position Software update It is very important that the product is updated to the...

Страница 25: ...ds before replacing any modules Warning Static electricity Static electricity may damage the product A static protective field service kit must always be used when the product is disassembled or modules are being handled Notice All modules must be placed on the ESD mat or in an ESD proof bag After replacement of modules When BeoLab 20 has been disassembled all affected sealings must be visually ch...

Страница 26: ...ement of modules BeoLab 20 in service position 1 Remove connector cover Apply protection stocking over lens Gently lift decoration ring by using the peeler tool Remove external cables connected to the product 3mm ...

Страница 27: ...ounter clock wise Wrap excessive protection stocking over the decoration ring to fixate this towards the top of the lens Disconnect cable Remove lens assembly 02 2P2 P2 1 Remove screws Attention Use allen key with bald end Attention Do not scratch the lens parts 3x 2 5mm ...

Страница 28: ...4 4 Replacement of modules BeoLab 20 in service position 1 Pull to remove fabric frame ...

Страница 29: ...ion cables Open cable holders BeoLab 20 seen from top indicating cable placement Attention cables Move cable connected to PCB30 P3 to same side as connector P3 Release cables from cable holders Attention Cable holders inside cabinet 4 2 BeoLab 20 in service position 1 Remove screws 12x TX20 Cable holders Cable holders ...

Страница 30: ...able placement Reconnect lense connector to 02 2P2 Apply screw at standoff Attention Use allen key with bald end Attention Do not scratch the lens parts 1x 2 5mm Gently tilt heat sink to lay on a plane surface Attention cables Attention cable to PCB48 3 NTC Woofer Open cable holders where needed ...

Страница 31: ...t Panel 4 2 BeoLab 20 in service position 1 4 5 BeoLab 20 in service position 2 Release cables from cable holders Remove screws and cable holders Remove screw Attention lock washer 1x TX20 Cable holders 8 mm Remove screw 1x TX10 16 mm 2x TX10 10 mm ...

Страница 32: ...4 8 Replacement of modules Remove screw Attetion Note shape of screw 1x TX10 10 mm Remove screws Remove screws Remove lid Disconnect cables 2x 9x TX10 TX10 12 mm 10 mm 02 1P103 02 1P101 02 1P102 ...

Страница 33: ...Replacement of modules 4 9 Remove ground plate Remove screws Remove PCB02 1 Input Panel 2x 10 mm Remove screws 2x TX10 10 mm ...

Страница 34: ...ment of modules Replace PCB02 2 Connector Interface 4 2 BeoLab 20 in service position 1 Remove screws Lift PCB02 2 Connector Interface Disconnect cable Replace PCB02 2 Connector Interface P2 1 2x TX10 10 mm 02 2P1 ...

Страница 35: ...wer Supply 4 2 BeoLab 20 in service position 1 4 5 BeoLab 20 in service position 2 Remove screw Attention lock washer Remove screw and cable holder Attention cable holder Remove screws Remove screws 1x 1x 3x 5x TX20 TX10 TX10 TX10 8 mm 12 mm 8 mm ...

Страница 36: ...eplacement of modules Disconnect cables Attention locking device on 04P14 Remove standoffs Remove PCB04 Power Supply Attention PCB04 and components when removing from guide pins 04P13 04P15 04P14 04P17 4x 5mm ...

Страница 37: ...oLab 20 in service position 2 Disconnect cables Attention locking device on 30P1 30P2 and 30P3 Remove screw Attention cable holder Loosen screws two turns Remove screws Gently lift off assembly 1x 2x 5x TX10 TX10 TX10 W356 33 49 17 P4 P3 P7 P1 P2 1 23 2 24 1 391 2 40 2 34 1 33 1 24 1 30 30P3 30P4 30P2 30P1 ...

Страница 38: ...of modules Turn PCB30 buttom side up Remove standoffs Remove screws Remove standoffs Turn PCB30 buttom side down Gently pull off PCB89 Wireless Power Link Rx Move gap pad to new PCB30 Digital Sound Engine 4x 5mm 2x TX10 ...

Страница 39: ...move PCB35 1 Amplifier Tweeter Midrange Remove screws Attention lock washers Replace PCB35 1 Amplifier Tweeter Midrange 4 2 BeoLab 20 in service position 1 4 5 BeoLab 20 in service position 2 Disconnect cables 14 1 P2 P3 P1 8 1 1 1 2 24 8 35 1P1 35 1P3 35 1P2 35 2P2 4x 4x TX8 TX8 8 mm 8 mm ...

Страница 40: ... screws Remove PCB35 2 Amplifier Woofer Remove Screws Attention lock washers Replace PCB35 2 Amplifier Woofer 4 2 BeoLab 20 in service position 1 4 5 BeoLab 20 in service position 2 Disconnect cables 14 1 P2 P3 P1 8 1 1 1 2 24 8 35 2P3 4x 4x TX8 TX8 8 mm 8 mm 35 1P3 35 2P1 35 2P2 ...

Страница 41: ...B47 LED Indicator 4 2 BeoLab 20 in service position 1 4 23 Remove Tweeter Remove screws Attention gently lift felt to access two screws Take out LED assembly Turn upside down Remove screws Replace PCB47 LED Indicator 3x 2x TX7 TX7 8 mm 8 mm ...

Страница 42: ...8 1 NTC Tweeter 4 2 BeoLab 20 in service position 1 4 23 Replace Tweeter Turn tweeter assembly buttom side up Peel off PCB48 1 NTC Replace tape if damaged Replace PCB48 1 NTC Attention place new tape and new PCB48 1 NTC in same place as shown ...

Страница 43: ...Replacement of modules 4 19 Replace PCB48 2 NTC Midrange 4 2 BeoLab 20 in service position 1 4 24 Remove Midrange Remove screw Replace PCB48 2 NTC 1x TX10 ...

Страница 44: ...4 20 Replacement of modules Replace PCB48 3 NTC Woofer 4 2 BeoLab 20 in service position 1 4 25 Remove Woofer Remove screw Replace PCB48 3 NTC 1x TX10 ...

Страница 45: ... 4 21 Replace PCB68 Switch Panel 4 2 BeoLab 20 in service position 1 4 5 BeoLab 20 in service position 2 Remove screws Remove lid Lift PCB68 Switch Panel Disconnect cable Replace PCB68 Switch Panel P1 1 2 4x TX10 16 mm 68P1 ...

Страница 46: ...ireless Power Link Rx 4 2 BeoLab 20 in service position 1 4 5 BeoLab 20 in service position 2 4 13 Remove PCB30 Digital Sound Engine Turn PCB89 buttom side up Remove screws Turn PCB89 buttom side down Replace PCB89 Wireless Power Link Rx 2x TX10 ...

Страница 47: ...ab 20 in service position 1 Turn tweeter assembly buttom side up Remove screws Lift tweeter and turn bottom side down with PCB48 3 NTC towards plain surface Remove screws Remove cover plate Disconnect cable Replace Tweeter 3x 3x TX10 TX10 6 mm 14 mm 47P1 ...

Страница 48: ...nt of modules Replace Midrange 4 2 BeoLab 20 in service position 1 Remove screws Gently pull out the midrange Disconnect cables Remove screw Remove PCB48 2 NTC to new midrange Replace Midrange 4x 1x TX20 TX10 48 2P1 ...

Страница 49: ...t of modules 4 25 Replace Woofer 4 2 BeoLab 20 in service position 1 Remove screws Gently pull out the woofer Disconnect cables Remove screw Remove PCB48 3 NTC to new woofer Replace Woofer 8x 1x TX20 TX10 48 3P1 ...

Страница 50: ...4 26 ...

Страница 51: ...river 10 cone Midrange driver 5 cone High frequency driver 3 4 dome Effective Frequency Range is measured at 10 dB re Ref level 200 to 2000 Hz Sensitivity is measured at dB SPL 1 m re 125 mV Market Variant Type number Albania Andorra Argentina Austria Azerbaijan Bahrain Belgium Botswana Brazil Bulgaria Chile Côte d Ivory Croatia Czech Republic Denmark Egypt Faroe Islands Finland France Georgia Ger...

Страница 52: ...aptation Free wall or Corner position Thermal protection Line sense auto On Off Wireless Power Link Wireless Technology WiSA 5 GHz Connections 2 Power Link RJ45 1 RCA L R 1 TOSLINK IN in Sample rate 32k 44 1k 48k 96k PCM 16 24 bit 1 TOSLINK OUT out Sample rate 48k PCM 24 bit Wireless Power Link ...

Страница 53: ...V Off 0 5V via source Pin 5 Not used Pin 6 Audio R in Pin 7 Signal GND Pin 8 Audio L in SERVICE RJ45 socket Pin 1 Not used Pin 2 ATI_Tx Pin 3 ATI_Rx Pin 4 ATI_ON Pin 5 Not used Pin 6 Not used Pin 7 GND Pin 8 Not used INPUT L R Phono sockets Audio in L R RCA Input voltages 0 2 2Vrms TOSLINK IN Optical socket Audio IN S P DIF TOSLINK OUT Optical socket Audio OUT S P DIF Subject to change without not...

Страница 54: ...5 4 ...

Страница 55: ...ense MONITOR1 CAL MIC1 MONITOR2 MONITOR3 MONITOR4 CAL MIC2 5V_SB CAL LINE_SENSE_PL TRAINING LINE_SENSE_LINE Gain 8 6dB Gain 0dB Gain 8 6dB ADC_2L ADC_2R ADC_1R ADC_1L ADC2 ADC3 ADC1 ADC0 CODEC_RESET_N CODEC_RESET_N DAC_RESET_N DAC ADC_MUX LED_2_O LED_3_R LED_4_G LED_1_W FEP_ATI_RX ATI_ON_N ADC_TDM SPI_A DAC_TDM FEP_ATI_TX CODEC_RESET_N DAC_RESET_N LINE_SENSE_LINE LINE_SENSE_PL UART_TX UART_RX AUDI...

Страница 56: ...6 2 6 2 6 2 ...

Страница 57: ..._PWM3 CON_LED_PWM2 CON_LED_PWM1 GND 5V_SB GND GND 5V 5V CON_PWR_GOOD_N CON_PWR_ON CON_PWR_NTC CON_PWR_MAINFAIL_N 15V GND 15V P3 GND 34 34pins 15 31 32 33 34 21 22 23 24 25 26 27 28 29 30 11 12 13 14 16 17 18 19 20 10 9 8 7 6 5 4 3 2 1 P7 NC CON_WL_I2S_WCLK CON_WL_I2S_BCLK CON_WL_I2S_D0 GND NC GND CON_WL_TX CON_WL_RX CON_WL_N_LINK CON_WL_N_HEARTBEAT CON_WL_PING1 CON_WL_N_AMP_ERR CON_WL_N_DET1 CON_W...

Страница 58: ...001 9008 9002 9003 9004 9005 9006 9007 9009 9010 Incl pos no 9011 and PCB48 1 9011 9014 9012 9013 9015 9016 9017 9018 9018 9018 9018 9018 9018 9020 9019 9021 47 48 1 02 2 48 2 48 3 See Heat sink 2 2 2 2 2 1 1 1 3 3 3 6 5 4 4 4 6 6 6 7 8 7 8 10 7 7 7 7 7 7 7 7 7 7 7 7 Incl pos no 9014 9018 9031 7 11 12 11 11 11 12 12 12 ...

Страница 59: ...5 Mains cable EU 2 5A 1 8M 6100084 Mains cable UK 2 5A 1 8M 6100085 Mains cable US 7A 1 8M 6100297 Mains cable JP 7A 1 8M 6100298 Mains cable AUS 2 5A 1 8M 6100089 Mains cable China 2 5A 1 8M 6100303 Mains cable Korea 2 5A 1 8M 3376113 Mais cable TWN 2 5A 125V 3M 9020 2752161 Foot 9021 3153901 Connector cover 02 2Module 8007875 PCB02 2 Connector Interface 47Module 8007873 PCB47 LED 48 1Module 8007...

Страница 60: ...9032 9040 15 16 17 18 9031 9031 9031 9032 9040 See Connector Panel 9033 9034 See Digital Sound Engine 04 9031 16 15 16 18 17 17 17 17 18 19 20 19 19 19 22 23 20 20 20 22 22 22 23 23 23 24 21 24 24 21 21 25 24 23 25 24 23 24 23 24 23 21 21 21 21 21 26 26 26 ...

Страница 61: ...4 3160838 Shielding 9040 3948141 Set of gaskets 04Module 8007871 PCB04 Power Supply Screws etc 15 3152235 Wire clips 16 2019034 Screw 3 x 12mm 17 2930178 Bushing 18 2058092 Screw 4 x 10mm 19 2934175 Standoff 20 2056016 Screw 3 x 8mm 21 2019034 Screw 3 x 12mm 22 7530118 Cable holder 23 2620036 Washer 24 2042074 Screw 4 x 8mm 25 2052011 Screw 3 x 10mm 26 2019032 Bolt ...

Страница 62: ... 9040 9040 9046 02 1 68 35 1 35 2 30 30 30 32 31 33 33 33 33 33 33 34 32 32 32 32 32 32 32 32 31 30 31 30 35 35 35 35 32 31 32 32 32 32 32 32 32 32 32 32 36 36 36 36 37 37 37 37 37 37 37 37 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 Remember to order pos no 9040 Set of gaskets 38 ...

Страница 63: ...2 PCB02 1 Input Panel 35 1Module 8007783 PCB35 1 Amplifier 35 2Module 8007783 PCB35 2 Amplifier 68Module 8007874 PCB68 Switch Panel Screws etc 30 2019025 Screw 4 x 12mm 31 7530118 Cable holder 32 2052011 Screw 3 x 10mm 33 3376236 Gap pad 1 x 13 x 13mm 34 2013255 Screw 3 x 10mm 35 2013195 Screw 3 x 16mm 36 3376238 Gap pad 1 5 x 20 x 20mm 37 2625002 Washer 38 2013020 Screw 3 x 8mm Remember to order ...

Страница 64: ...Module 8007804 PCB89 Wireless Power Link Rx Screws etc 40 2038137 Screw 3 x 6mm 41 7530119 Cable holder 42 2934126 Standoff 43 2934173 Standoff 44 2013288 Spacer 45 3376238 Gap pad 1 5 x 20 x 20mm 46 3170361 Gap pad 47 2934174 Standoff 48 2052011 Screw 3 x 10mm 40 40 40 40 40 40 40 40 40 40 41 42 42 44 43 43 44 44 44 40 40 45 46 45 48 48 40 40 47 47 9052 9053 9051 9050 30 89 ...

Страница 65: ...PSU AMP W8 6278950 Wire PSU AMP W9 6278874 Wire AMP SPK W10 6278954 Wire INT LED NTC See page 6 3 Parts not shown 3376562 Product cover 3040117 Peeler 3376577 Stocking Back up suitcase 3395705 Back up suitcase Accessories 6270848 ServiceTool cable USB A USB Mini B Packing 3394112 Outer carton 3394111 Packing complete Available documentation See Retail Ordering System ...

Страница 66: ...7 9 ...

Страница 67: ......

Страница 68: ...Bang Olufsen DK 7600 Struer Denmark 3538228 14 04 353822814040000 ...

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Bang & Olufsen BeoLab 20, Руководство по обслуживанию

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