B&O-Beolab7.4-type-621x-from1936958维修电路原理图.pdf

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1、BeoLab 7 4 Type 6215, 6216 From serial no. 19369658 Service Manual Danish English, German, French, Italian, Spanish and Dutch 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 RadioFans.CN 收

2、音机爱 好者资料库 CONTENTS Survey of modules .1.1 How to service . 1.2 Repair tips . 2.1 Adjustments . 3.1 Final check after repair . 3.2 Replacement of spare parts . 4.1 Illustrations . 5.1 Specifi cation guidelines for service use . 6.1 Overall block diagram .7.1 Wiring diagram . 7.2 Available parts . 8.1

3、 ABO-CENTER v/HENRIKSENS ELEKTRONIK RadioFans.CN 收音机爱 好者资料库 1.1Modul oversigt Modul oversigt 999Module Main chassis ABO-CENTER v/HENRIKSENS ELEKTRONIK Udfrelse af service Strategi Hjttaleren skal repareres i kundens hjem. Det antistatiske serviceudstyr skal altid bruges, nr produktet skilles ad, ell

4、er nr der hndteres moduler. Reparationen omfatter udskiftning af moduler eller hjttalerenheder, som leveres i backup-kufferten. De udskiftede moduler skal returneres til reparation hos Bang bas. 3. Montr hjttalerenheden. NTC-printkortet skal vre tilsluttet, ellers lukker BeoLab 7 4 ned. 4. Justr fi

5、ltermodulet, hvis dette ikke allerede blev gjort i trin 2. Hjttalerenhed, diskant 1. Fjern den defekte hjttalerenhed. 2. Justr fi ltermodulet, eller notr hjttalervrdien p mrkaten. TW; diskant. 3. Montr hjttalerenheden. 4. Justr fi ltermodulet, hvis dette ikke allerede blev gjort i trin 2. Hovedchass

6、is, modul 999 1. Fjern hovedchassiset (modul 999). 2. Overfr hjttalervrdierne til fi ltermodulets potentiometre, eller notr hjttalervrdiens position p det defekte PCB4. WO; bas. TW; diskant. 3. Monter det nye hovedchassis (modul 999). NTC-printkortet skal vre tilsluttet, ellers lukker BeoLab 7 4 ned

7、. 4. Justr fi ltermodulets potentiometre, hvis dette ikke allerede blev gjort i trin 2. 4.1 ABO-CENTER v/HENRIKSENS ELEKTRONIK 5.1Remove front cover - Push front cover towards bottom - Remove cables - Pull off front cover Tip: Use dedicated tool ABO-CENTER v/HENRIKSENS ELEKTRONIK 5.2Remove tweeter l

8、ens 4x TX15 - Remove plug - Remove screws 5.1 Remove front cover Plug Remember to remount suspension! ABO-CENTER v/HENRIKSENS ELEKTRONIK 5.3 3x TX10 - Remove screws - Pull off cover f/tweeter - Remove screws to remove tweeter unit Disassembly of tweeter lens 2x TX10 5.1 Remove front cover 5.2 Remove

9、 tweeter lens - Remember to adjust tweeter when replaced according to fi gures printed on speakerlabel (See adjustment procedure page 3.1) - Remove screws to remove topplate 2x TX15 ABO-CENTER v/HENRIKSENS ELEKTRONIK 5.4 4x TX20 - Remove screws - Remove plugs (Remember NTC!) 5.1 Remove front cover R

10、eplace woofer - Remember to adjust woofer when replaced according to fi gures printed on speakerlabel (See adjustment procedure page 3.1) ABO-CENTER v/HENRIKSENS ELEKTRONIK 5.5Replace main chassis - Remove screws - Place speaker front next to cabinet as shown - Remove plugs from woofer 10 x TX20 - R

11、emove tweeter plug by removing screws 2x TX10 5.1 Remove front cover - Remember NTC module! Plug Remember to unplug tweeter ABO-CENTER v/HENRIKSENS ELEKTRONIK 5.6Replace Main chassis - Remove screws - Pull out chassis 6x TX20 GND! 5x TX10 ABO-CENTER v/HENRIKSENS ELEKTRONIK 6.1 Specifi cation guideli

12、nes for service use Specifi cation guidelines for service use BeoLab 7 - 4 Type no. 6215 220-240V (Jumper 6J200 is mounted) Type no. 6216 110-120V (Jumper 6J201 is mounted) Dimensions W x H x D 17 x 48 x 19 cm Weight Approx. 8 kg Cabinet fi nish Aluminium cabinet coated with hardwearing black soft-t

13、ouchlacquer. Anodised speaker grill in following colours: Aluminium, Black, Blue, Dark Grey, Red Input sensitivity Power Link 125mV 88dB SPL Power Amplifi ers 2 x 250 watts (Class D ICEpower) Long Term Maximum, output per amplifi er Bass/Midrange : 180 Watts (8 Ohm) Treble : 180 Watts (8 Ohm) Effect

14、ive Frequency range 50 20.000 Hz Crossover frequencies 2000 Hz Cabinet principle Closed box Magnetically shielded No Net volume 5 litres Woofer 5” (125 mm) Tweeter (In acoustic lense) ” (19 mm) Bass equalization ABL (Adaptive Bass Linearization) Protection Thermal protection Connections Power Link -

15、 input 1 (PL MKIII Semi-Balanced) Mains input 1 Mains output 1 (Not US) Indication 1 tri-color LED (For service use only) Green On Red Stand-by Orange Protection Operations Switch for : Wall Free Power consumption Typical : 12 Watts Stand-by : 0.3 Watts Accessories Bracket for single pipe 2184 (1218

16、466) Wall bracket (Black) 2172 (1217266) Subject to change without notice ABO-CENTER v/HENRIKSENS ELEKTRONIK 7.1Overall block diagram Overall block diagram ABO-CENTER v/HENRIKSENS ELEKTRONIK 7.2Wiring diagram Wiring diagram P30 03 01 6277889P2 W8 W804 6277889P13 P36277887 01 W10 P16277886 01W9 P1062

17、77888 04 W1 P15 04W2 6277890 04W3 P14 P1 06W3 P4 06 W4 6277892 6277892 04W4 P12 IceSystem 1 P116277893 04W7 Smallsignal W206 6277890P2 06W5 6277894P3 Input W6 6277890 W2 3 6 4 1 Mains ABO-CENTER v/HENRIKSENS ELEKTRONIK 8.1 Available parts Available parts BeoLab 7 4 9001 9002 9003 9004 9005 9006 9012

18、 9013 9015 9014 9017 9011 9011 9011 9016 W2 9010 9008 9008 9009 Incl. pos. no. 9020 Incl. pos. nos. 9013, 9020 1 1 2 3 16 2 3 17 2 3 2 3 6 7 7 7 7 7 7 7 7 7 7 7 7 7 8 8 9 9 9 9 9 9 9 9 9011 4 4 4 4 5 9517 25 25 4 4 5 25 25 9551 9030 9031 W20 W21 9018 9019 9020 9021 9007 999 Incl. pos. no. 9007 Incl.

19、 pos. nos. 9009, 9019, 9020, 15 8 8 8 8 8 10 10 11 11 11 11 12 13 14 12 13 14 12 13 1412 13 14 15 15 1716 17 17 17 16 16 Incl. pos. nos. 9011, 9014, 9017, 9 F1 F2 ABO-CENTER v/HENRIKSENS ELEKTRONIK Available parts 8.2 BeoLab 7 4 9001 3458118 Top cover 9002 3131090 Lens, top 9003 3459496 Cover f/twee

20、ter 9004 8480045 Tweeter incl. pos. no. 9020 9005 3131093 Lens bottom 9006 3444232 Front cover, silver 3444233 Front cover, black 3444234 Front cover, dark grey 3444235 Front cover, blue 3444236 Front cover, red 9007 3947114 Gasket 9008 3332006 Damping material 9009 3947213 Gasket f/cabinet, set 901

21、0 3947177 Gasket 9011 2816190 Spring 9012 3332007 Damping material 9013 8006994 PCB NTC 9014 3151856 Guide f/grill 9015 8480046 Woofer incl pos. nos. 9013, 9020 9016 3440164 Baffle incl pos. nos. 9011, 9014, 9017, 9 9017 2816145 Clips 9018 3151847 Bracket 9019 3151831 Cover 9020 3947156 Gasket 9021

22、2569319 Cabinet incl pos. nos. 9009, 9019, 9020, 15 9030 6270077 Cable, Power Link 0.5m 9031 6270144 Cable, Power Link 5m 9517 3151916 Bracket f/double pipe BL7-4 9551 1218466 Bracket f/single pipe BL7-4 F1 6600127 Fuse 2.5A F2 6600178 Fuse 6.3A W2 6277890 Wire W20 6100047 Mains lead CN 6100273 Main

23、s lead EU 6100307 Mains lead US 6100329 Mains lead GB 6100332 Mains lead AUS W21 6100216 Mains lead male/female, 0.5m 999Module 8053144 999Module, Main chassis EU 8053125 999Module, Main chassis US Survey of screws etc. 1 2019031 Screw 3.5 x 10mm 2 2938111 Suspension lens 3 2935001 Spacer 4 2058077

24、Screw 5 x 20mm 5 3390014 Screw 5 x 8mm 6 2056008 Screw 3.5 x 10mm 7 2019025 Screw 4 x 12mm 8 2054012 Screw 3 x 10mm 9 2019026 Screw 3 x 8mm 10 2015004 Screw 4 x 30mm 11 2015005 Screw 4 x 55mm 12 2044001 Screw 6 x 11mm 13 2622017 Washer 14 2930028 Decoupling 15 2019024 Screw 3 x 10mm 16 2054026 Screw

25、 3 x 12mm 17 2013020 Screw 3 x 8mm 25 2058081 Screw 5 x 8mm ABO-CENTER v/HENRIKSENS ELEKTRONIK 8.3 Available parts Packing 9360 3396304 Set of foam 9361 3917226 Foam foil 9362 3392373 Outer carton Parts not shown 3375488 Product cover 3395292 Back-up suitcase EU 3395269 Back-up suitcase US 3390014 S

26、et of accessories 3624003 Tool f/removing of front cover Available documentation See Retail Ordering System Wire bundles See wiring diagram page 7.2. The part no. is printed on the diagram above the wire bundle, as shown. 9360 9361 9360 9362 P30 03 6277888 W1 P106277888 04 W1 Smallsignal Input 3 4 A

27、BO-CENTER v/HENRIKSENS ELEKTRONIK Available parts 8.4 Wall bracket 2172 9101 3151853 Cover for Wall bracket 9102 3151854 Wall bracket 9101 9102 1217266 ABO-CENTER v/HENRIKSENS ELEKTRONIK 8.5 ABO-CENTER v/HENRIKSENS ELEKTRONIK ABO-CENTER v/HENRIKSENS ELEKTRONIK Bang & Olufsen DK-7600 Struer Denmark Phone +45 96 84 11 22* Fax +45 97 85 39 11 3538046 06-06 ABO-CENTER v/HENRIKSENS ELEKTRONIK