BO-Beolab5_type6881_to_6888-int-sm 电路图 维修手册.pdf

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1、BeoLab 5 Type 6881, 6882, 6883, 6884, 6885, 6886, 6887, 6888 From serial no. 19375256 Service Center repair guide English RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 How to service Front line service BeoLab 5 must be serviced in the customers home in terms of electrical symptoms or exhange of me

2、chanical parts such as cloth frame, microphone or foot. In this way you avoid having to transport the heavy loudspeaker (967mm/485mm,61kg) from and back to the customer. For front line service we offer a back-up suitcase. All needed electrical parts are found in the back-up suitcase (beside the tran

3、sformer and lower woofer). Mechanical parts (cloth frame, foot, cabinet or alu. plates) must be ordered separately. Service documentation Service documentation for the BeoLab 5 will be a “Service Center repair guide” with part no. for the back-up suitcase, electrical and mechanical parts, Users guid

4、es etc. Converting mains voltage supply If it is necessary to change voltage supply, e.g. when moving between two countries, it is necessary to order new mains transformer and a jumper on the ICEsystem 1 PCB6 (J200 = 220-240Vac, J201 = 100-120Vac). For US/JPN the fuse F10/11 on the mains filter PCB1

5、 must be changed from T5A to T10A also. E.g.: Moving from EU (type 6881) to Japan (type 6884) with a pair of BeoLab 5, order two mains transformers for type 6884, and move the jumper on the ICEsystem 1 PCB6 from J200 to J201 to adapt both speakers to the 100Vac mains voltage. Type survey Variants Ty

6、pe Transformer Jumper Mains cable Fuse F10/11 J200/J201 on PCB1 on PCB6 EU 6881 8013627 J200 mount. 6100440 6600177 (T5A) I 6888 8013627 J200 mount. 6100441 6600177 (T5A) CH 6887 8013627 J200 mount. 6100442 6600177 (T5A) GB 6882 8013627 J200 mount. 6100443 6600177 (T5A) US 6883 8013629 J201 mount. 6

7、100444 6600176 (T10A) JPN 6884 8013628 J201 mount. 6100445 6600176 (T10A) AUS 6885 8013630 J200 mount. 6100446 6600177 (T5A) KOR 6886 8013627 J200 mount. 6100447 6600177 (T5A) How to service, English 1.1 RadioFans.CN 收音机爱 好者资料库 1.2 Warnings PIN code protection, English STATIC ELECTRICITY MAY DESTROY

8、 THE PRODUCT Warnings ESD When electrical replacements or disassembly is taking place, use a ESD-mat. The internal electronic are very sensitive to static electricity. General warnings Wear cutton cloves to avoid any fingerprints on the product. The aluminium surfaces on the product is very sensitiv

9、e, so handling should be done with great care to avoid damage. The mechanical limit for the driver is easily reached when the vacuum tightness in BeoLab 5 is broken. PIN code protection The PIN code protection system will be introduced in autumn 2003. This will be the known PIN code system, which ar

10、e used in others products. The system will be mentioned in the user guide when introduced. Like on other products you will be able to use the service master code, when service is performed (11111). PIN code protection is introduced from serial number : _ Specification guidelines for service use BeoL

11、ab 5 Type no. ope ope Type no. nn nn Type no. n n Type no. pn pn Type no. Type no. oe oe Type no. 7 wzen Type no. y y DimensionsHeh 97mm mm Weh k Box fo one opeke Heh mm Wh mm Lenh mm Cabinet finish mnm n bck coh bne vome ppe b e Lowe b 9 eLowe b 9 e Powe onmpon ypc W nby . W Mxmm on Pee Leve B Powe

12、 mpfie Lon em mxmm op powe pe mpfie Lowe b : w ppe b : w Mne : wMne : w Tweee : w ffecve Feqency Rne Hz oove feqency / Hz bne pncpe oe box Mnecy hee No Lowe woofe mm ” ppe woofe mm .” Mne 7mm ” Tweee 9mm ” Decvy cono ebe n mne *coc Len Technooy B eqon B (pve B ono) ConnectionsPowenk Phono (Lne) *D 9

13、 ome jmen Bn *LT (o coc Len Technooy) cene fom o Wok LL. */././9 Subject to change without notice pecficon ene fo evce e . . Ove bock mOve bock m . Overallblockdiagram . Wn mWn m . Wiringdiagram . vbe pvbe p . Availableparts Lens 9001 8 10 9005 9006 9007 9009 9010 9008 9011 10 9012 9013 9014 9015 90

14、16 9019 9017 9018 9004 9003 9002 1 1 2 2 3 3 3 3 3 3 4 2 2 2 2 6 7 5 4 3 33 3 8 8 8 8 8 8 5 7 6 8 Incl. pos. nos. 3, 9005, 9006 Incl. pos. nos. 3, 5, 6, 7, 9009, 9010 Incl. pos. nos. 3, 5, 6, 7 . vbe pvbe p . Lens 9 9 Toppe compee 9 7 Hoe 9 Len f/nco 9 7 Len f/TW nc. po. no. 9 9 9 97 Fe f/TW e 9 977

15、 Fe f/TW m 97 7 Tweee 9mm /” 9 77 mnmpe f/TW nc. po. no. 7 99 9 99 97 Fe f/MR e 9 979 Fe f/MR m 9 7 Mne 7mm ” 9 9 Dmpn me 9 9 Dmpn me be 9 Dmpn me MR 9 7 mnmpe f/MR nc. po. no. 7 9 97 Topcove 97 79 Tbe w/flne nc. po. no. 9 9 Len f/R 99 99 Dmpn me Moe 9 PB nco Moe 9 PB NT Survey of screws etc. cew x

16、7mm 7 cew x mm 97 Tpe o x 7mm 9 cew x mm cew x mm 9 Gon pn 7 7 P cew x mm . vbe pvbe p . Speakers 9026 9025 9027 9028 9029 9030 9031 9032 9033 9034 9035 9037 9038 9039 9040 9041 9042 9043 9036 10 7 999 10 10 10 10 10 9 11 1111 11 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 88 8 8 8 8 8 8 9 8 8 12 12 12 12 12 12 1

17、2 12 12 12 13 13 13 13 13 13 14 14 16 16 15 15 1515 8 Speakers 90253320719Cloth frame 90268013627Transformer, EU, KOR 8013628Transformer, JPN 8013629Transformer, US 8013630Transformer, AUS 90273340246Gasket, set 90283332094Damping material, back 90293332095Damping material, side 90303332097Damping m

18、aterial, ring 90318480376Woofer - 165mm, 612” 90323332095Damping material, side 90333400303Loudspeaker cabinet, incl. tape 90343160307Cover f/plug connections 90353151722Cover f/RS232 plug 90362816381Hook f/cloth frame 90376100440Mains cable, EU 6100443Mains cable, GB 6100444Mains cable, US 6100445M

19、ains cable, JPN 6100446Mains cable, AUS 6100447Mains cable, KOR 6100441Mains cable, I 6100442Mains cable, CH 90383151552Wire holder 90398480375Woofer - 381mm, 15” 90403340246Gasket, set 90418470042Microphone unit 90422752098Foot 90433103417Foot, soft 7Module8100091PCB7, Sensitouch & IR 10Module81000

20、90PCB10, NTC 999Module 8052224Main chassis with PIN code protection 1F10/116600177Fuse (T5A) 6600176Fuse (T10A) 6J2006000096Jumper 6J2016000096Jumper Survey of screws 82058063Screw 5 x 25mm 92056008Screw 3.5 x 10mm 102015177Screw 3.5 x 14mm 112054022 Screw 3 x 8mm 122042054 Screw 4 x 12mm 132015180

21、Screw 4 x 12mm 142015174 Screw 4 x 14mm 152038118 Screw 3 x 6mm 162072127 Center screw Available parts 4.4 Wire bundles See wiring diagram page 3.2. The part no. is printed on the diagram above the wire bundle, as shown. Parts not shown 3395224Back-up suitcase with PIN code protection 3375007Product

22、 cover 3624521Service bracket 3624161Service holder f/topcover pos. no. 9016 6270900Dig. cable w/ferrite, black, 5m 6270775Line cable, black, 5m 6270901Sync. cable, 10m 6270688Power Link cable, black, 5m 3629144Special tool f/topcover 3040001Torx key 3132288Brush 3390586Cable cover set 4.5 Available

23、 parts Guides, see Retail Ordering System Available parts 4.6 Packing 9301 9302 9303 9304 9305 9302 9306 9307 9301 3392766 Outer carton, top 9302 3396196 Foam packing, set of top and bottom 9303 3392074 Distance pipe - order 4pcs. 9304 3392772 Outer carton, side 9305 3392772 Outer carton, side 9306

24、3392766 Outer carton, bottom 9307 3392685 Wooden pallet, EU 3392768 Wooden pallet, AUS 3917105 Foam foil 4.7 The main chassis in the back-up suitcase, is setup as a EU version. If it should be used in a JPN or US product, it will need to be converted. See page 6.4. Service tips Symptom: The loudspea

25、ker does not switch on, and the stand-by diode is always red. Cause: The amplifier is in protection-mode. The cause can be to high a load due to for instance a disconnected/broken loudspeaker unit or NTC-PCB. The cause can also be an internal fault in the main chassis. Solution: Check the load from

26、the unit (b.m.o. an Ohm-meter) and replace the loudspeaker unit, NTC-PCB or main chassis by using the back-up suitcase which contains all necessary parts for On-site service. (Does not contain lower woofer or transformer). Bring the main chassis into service position, and mount the complete lens aga

27、in, this way you can check the connection all the way through the lens. When the chassis is in service position disconnect P3 on PCB6. On this plug you will be able to check the tweeter and midrange unit, with a digital multimeter. Service tips, English 5.1 Between red and orange there should be 5.7

28、 ohm (midrange) Between green and yellow there should be 3.0 ohm (tweeter) The LB and UB can be measured directly on the units, after disconnecting the plugs. The LB should measure 3.1 ohm The UB should measure 5.0 ohm All four NTC resistors should measure 470Kohm. Note! A thermal overload shuts dow

29、n the BeoLab 5. Disconnect the mains for a few seconds to reset BeoLab 5. Service tool To service BeoLab 5 a LabTop with the Bang & Olufsen service tool application is needed. With the “Service Tool” it is possible to read error codes, service counters and product ID and to save them in a file. (The

30、 service tool is downloaded from the Retail System). It is also possible to read data from the EEPROM and write data to the EEPROM. This is necessary when a driver unit or a EEPROM has to be replaced. Test functions and software update are also possible. Replacement of driver If it should be necessa

31、ry to replace one of the driver units there are several things to be aware of. For service purposes each driver is measured separately and the result of this measurement is stored in a server at Bang & Olufsen together with a specific serial number for each driver. A label is placed on the driver wi

32、th its serial number. In BeoLab 5 the data belonging to drivers are stored in a EEPROM, placed in a socket on the chassis. In a repair situation it is necessary to be able to write the data - belonging to the actually driver to the EEPROM. This is done with a LapTop with the Bang & Olufsen Service T

33、ool application. All data for the drivers will be available in the Retail System. The procedure: Access the Retail System and download driver data for BeoLab 5. Data for all existing drivers will be downloaded to the LapTop. This is done to be sure that the technicians have access to the correct dat

34、a. When the technician has replaced a defective driver in BeoLab 5 he must check the serial number of the new driver - written on a label, placed on the driver. Connect the cable between the LapTop and BeoLab 5 and start the Service Tool and access “BeoLab 5” in the menu. Choose the function for wri

35、ting to the EEPROM and key in the serial number. The application will automatically find the correct data for the actual driver. Press the button for write and the data will be transferred to BeoLab 5. An extra label with the serial number is supplied with the driver. This must be placed on the cabi

36、net. 5.2 Service tool - Replacement of driver, English Replacement of EEPROM If the EEPROM is defect the data for all the drivers must be written into a new EEPROM. The serial number for the drivers can be found on the drivers/cabinet. The serial number refers to the data for the actually driver. Pr

37、ocedure: When the defect EEPROM is replaced the data of the drivers must be written to the EEPROM via the service tool: - Connect the cable between the LapTop and BeoLab 5 and start the Service Tool and access “BeoLab 5” in the menu. Choose the function for writing to the EEPROM and key in the seria

38、l numbers written on the labels. The application will automatically find the correct data for the actual drivers. Press the button for write and the data will be transferred to BeoLab 5. ABC calibration after repair: When the EEPROM has been changed the actual ABC filtres are lost. This means that i

39、t is necessary to let BeoLab 5 carry out the ABC calibration. Replacement of the chassis If the electronic chassis has a defect the complete chassis - except the EEPROM - must be replaced. The EEPROM contains driver data and must be moved from the defect chassis to the new one. If it is necessary to

40、 replace the EEPROM - for instance because of lightning - the driver data must be read in. Cleaning Clean the loudspeaker surfaces using a lint-free cloth which you have wrung firmly in lukewarm water. Never use a vacuum cleaner to clean the two domes. However, the front speaker cloth may be cleaned

41、 with a vacuum cleaner with a brush nozzle, and set to the lowest suction level. Never use alcohol or other solvents to clean any parts of the loudspeaker. Replacement of EEPROM/Chassis & Cleaning, English 5.3 6.1 Replace cloth frame 6x Replace cloth frame Special tool f/topcover No. 3629144 3x Torx

42、 key 3040001 1 2 3 4 5 6 6.26.3 10 x BeoLab 5 in service position BeoLab 5 in service position See page 6.1, Remove cloth frame TX20 1 2 3 4 6.26.3Replace main chassis BeoLab 5 Replace main chassis See page 6.1, Remove cloth frame See page 6.2, BeoLab 5 in service position 1x 2x 4x 1 3 4 5 6 2x TX25

43、 2 Mounting new main chassis 6.46.5 Replace using IC-pliers (part no. 3629145) IC304 For US and JPN models only 2x TX10 Change fuse to T10A 7 8 Mounting new main chassis Mounting new main chassis 9 For US and JPN models only 6.46.5 4x Replace woofer 165mm, 612 Replace woofer 165mm, 612” See page 6.1

44、, Remove cloth frame 3x TX10 1 2 6.66.7 12x Replace woofer 381mm, 15” 8x Replace woofer 381mm, 15 See page 6.1, Remove cloth frame See page 6.2, BeoLab 5 in service position See page 6.3, Remove main chassis, 1 - 5 TX25 TX25 1x 1 2 3 4 5 6.66.7 2x 4x Replace foot Replace foot See page 6.1, Remove cl

45、oth frame See page 6.2, BeoLab 5 in service position See page 6.3, Remove main chassis, 1 - 5 See page 6.6, Remove woofer 381mm, 15 TX10 1 2 3 4 6.86.9Replace transformer 2x See page 6.1, Remove cloth frame Replace transformer See page 6.2, BeoLab 5 in service position 1x 4x 1 2 3 4 5 6.86.9 Replace

46、 microphone 4x TX10 2x TX10 Replace microphone 1 2 3 4 5 6 7 6.106.11 Replace loudspeaker cabinet See page 6.1, Remove cloth frame See page 6.3, Remove main chassis, 1 - 5 See page 6.5, Remove woofer 165mm, 612 See page 6.6, Remove woofer 381mm, 15, 1 - 3 See page 6.2, BeoLab 5 in service position 4

47、x TX10 Replace loudspeaker cabinet See page 6.8, Remove transformer 1 2 6.106.11Replace topplate 1 2 Replace topplate 1 2 3 4 6.126.13 2x Dismantling lens for tweeter Dismantling lens for tweeter See page 6.11, Remove topplate TX10 1 2 6.126.13 2x 1x 3x Replace tweeter 19mm, 34 See page 6.11, Remove

48、 topplate TX10 TX20 Remount tweeter 19mm, 34 1 2 3 4 5 Replace tweeter 19mm, 34” 6.146.15Replace aluminiumplate for tweeter 4x Replace aluminiumplate for tweeter See page 6.11, Remove topplate See page 6.12, Remove tweeter, 1 - 4 TX20 1 2 3 6.146.15 3x Replace midrange 76mm, 3 1x Replace midrange 76

49、mm, 3” See page 6.11, Remove topplate See page 6.12, Remove tweeter, 1 - 4 See page 6.13, Remove aluminiumplate for tweeter TX10 Remounting midrange 76mm, 3 1 2 3 6.166.17 7x Replace aluminiumplate for midrange Replace aluminiumplate for midrange See page 6.11, Remove topplate See page 6.12, Remove tweeter, 1 - 4 See page 6.13, Remove aluminiumplate for tweeter See page 6.14, Re