1. DL manuals
  2. Bang & Olufsen
  3. Stereo System
  4. BeoSound 3000 2671
  5. Service Manual

Bang & Olufsen BeoSound 3000 2671 Service Manual

Summary of BeoSound 3000 2671

  • Page 1

    Beosound 3000 type 2671, 2672, 2673, 2674, 2675, 2676, 2677, 2680 service manual english, german, french, italian, spanish illustration abo-center v/henriksens elektronik.

  • Page 2

    1.1 survey of modules 9 90*/99 87*/ 89 5 20 18 21 28 15 2 3 86 14 12 * for cd pro mkii 2 interface f/µph8 .................................................. Diagram e page 2.14 3 µph8 microcomputer ......................................... Diagram e page 2.14 5 display .................................

  • Page 3

    1.2 specifi cation guidelines specification guidelines for service use beosound 3000 with fm, am and rds type 2671 eu (230v) type 2672 gb (240v) type 2673 usa-cdn (120v) type 2674 j (100v) type 2675 aus (240v) type 2676 twn (120v) type 2677 kor (220v) type 2680 lat (230v) preamplifi er section total...

  • Page 4

    1.3 specifi cation guidelines cd player cd, disc types 12 cm (5”), 8 cm (3”) frequency response 20 - 20,000 hz ±1 db snr (digital zero) >96 db / 101 db a-weighted dynamic range >98 db channel difference ±0.3 db d/a converter bitstream + analog fi lter dimensions w x h x d / weight 32 x 36 x 16 cm / ...

  • Page 5

    1.4 wiring of transformer wiring of transformer, pcb15 type 2671, 2677, 2680 eu, lat 230v~ kor 220v~ type 2672, 2675 gb, aus 240v~ 1b 1c 1c 1c 1c 5 7 6 8 9 13 10 11 14 4 2 3 1 12 15 16 t1p tf1 d9 d10 c13p 0.4mh l1p 240v 1000µ 240v 120v 100v 120v 230v 100v 120v 1b 1c 1c 1c 1c 5 7 6 8 9 13 10 11 14 4 ...

  • Page 6

    1.5 wiring of transformer type 2673, 2676 usa-cdn, twn 120v~ type 2674 jpn 100v~ 1b 1c 1c 1c 1c 5 7 6 8 9 13 10 11 14 4 2 3 1 12 15 16 t1p tf1 d9 d10 c13p 0.4mh l1p 120v 1000µ 240v 120v 100v 120v 230v 100v 120v 1b 3m3 r1p 1b 1c 1c 1c 1c 5 7 6 8 9 13 10 11 14 4 2 3 1 12 15 16 t1p tf1 d9 d10 c13p 0.4m...

  • Page 7

    Brief operation guide tune in radio stations press radio to switch on the radio press tune to access the tuning function. Fm ? Appears switches from fm to am, or vice versa press play to select am or fm. Fm or am and the current frequency appears press to search for a radio station – up or down the ...

  • Page 8

    1.7 turns on the radio starts the cd player press to step through your radio programs or tracks on a cd alternatively, key in the exact number, using the number keys searches through a cd searches backwards through a cd pauses playback any time press to resume playback raises the volume lowers the v...

  • Page 9

    2.1 explanation of diagram explanation of diagram type numbers of transistors and ics are indicated on the diagrams. If the position is followed by an asterisk the spare part number must always be used because the component in question has been specially selected, e.G. Tr102*. Component print and co...

  • Page 10

    2.2 explanation of diagram measuring conditions all dc voltages have been measured in relation to ground with a voltmeter with an input impedance of 10 mohms. The dc voltages are stated in volts (v), e.G. 0.7v. All oscillograms and ac voltages have been measured in relation to ground with an oscillo...

  • Page 11

    2.4 wiring diagram wiring diagram 2.4 wiring diagram 2.4 abo-center v/henriksens elektronik.

  • Page 12

    2.5 block diagram block diagram 2.5 block diagram for frontend tuner 2.5 abo-center v/henriksens elektronik.

  • Page 13

    2.6 block diagram block diagram 2.6 am block diagram 2.6 abo-center v/henriksens elektronik.

  • Page 14

    2.7 block diagram block diagram 2.7 block diagram for cd pro 2.7 0.5µs/div eyepattern 2.5v 1.3v abo-center v/henriksens elektronik.

  • Page 15

    Block diagram for system key controle 2.8 block diagram block diagram 2.8 2.8 abo-center v/henriksens elektronik.

  • Page 16

    Diagram a – frontend tuner pcb drawing for pcb86 see page 2.13 2.9 diagram a diagram a 2.9 2.9 abo-center v/henriksens elektronik.

  • Page 17

    Diagram b – fm/am detector pcb drawing for pcb86 see page 2.13 2.10 diagram b diagram b 2.10 2.10 abo-center v/henriksens elektronik.

  • Page 18

    Diagram c – stereo decoder and power section pcb drawing for pcb86 see page 2.13 2.11 diagram c diagram c 2.11 2.11 abo-center v/henriksens elektronik.

  • Page 19

    Diagram d – rds, µp & iic bus fi lter pcb drawing for pcb86 see page 2.13 2.12 diagram d diagram d 2.12 2.12 abo-center v/henriksens elektronik.

  • Page 20

    Pcb86, tuner-fm/am-rds-stereo decoder 2.13 pcb drawing pcb drawing 2.13 2.13 abo-center v/henriksens elektronik.

  • Page 21

    Diagram e – interface for µp & µph8 pcb drawing for pcb2 see page 2.16 2.14 diagram e diagram e 2.14 2.14 abo-center v/henriksens elektronik.

  • Page 22

    Diagram f – light and motor control, light supply & ir pcb drawing for pcb9 see page 2.16 2.15 diagram f diagram f 2.15 2.15 abo-center v/henriksens elektronik.

  • Page 23

    Pcb9, light and motor control 2.16 pcb drawing pcb drawing 2.16 2.16 pcb2, interface f/µph8 abo-center v/henriksens elektronik.

  • Page 24

    Diagram g – input select pcb drawings for pcb12 see page 2.20 2.17 diagram g diagram g 2.17 2.17 abo-center v/henriksens elektronik.

  • Page 25

    Diagram h – master link interface pcb drawings for pcb12 see page 2.20 2.18 diagram h diagram h 2.18 2.18 abo-center v/henriksens elektronik.

  • Page 26

    Diagram i – power supply & transformer pcb drawings for pcb12 see page 2.20 pcb drawing for pcb15 see page 2.22 2.19 diagram i diagram i 2.19 2.19 abo-center v/henriksens elektronik.

  • Page 27

    2.20 pcb drawings pcb drawings 2.20 2.20 pcb12, power supply, input select & pre-amplifi er abo-center v/henriksens elektronik.

  • Page 28

    Diagram j – door sensor pcb drawings for pcb20 & pcb21 see page 2.22 2.21 diagram j diagram j 2.21 2.21 abo-center v/henriksens elektronik.

  • Page 29

    2.22 pcb drawings pcb drawings 2.22 2.22 pcb20, ir receiver and left door sensor pcb21, door sensor right mkii pcb15, transformer abo-center v/henriksens elektronik.

  • Page 30

    Diagram k – cd interface 2.23 diagram k diagram k 2.23 2.23 pcb5, display abo-center v/henriksens elektronik.

  • Page 31

    Diagram l – cd servo & decoder 2.24 diagram l diagram l 2.24 2.24 0.5µs/div eyepattern 2.5v 1.3v abo-center v/henriksens elektronik.

  • Page 32

    Diagram m – display & keyboard pcb drawing for pcb5 see page 2.23 2.25 diagram m diagram m 2.25 2.25 abo-center v/henriksens elektronik.

  • Page 33

    List of electrical parts 3.1 list of electrical parts pcb2, 8006796 interface f/µph8 ic1 ∆ 8342397 149 memory/clock m141t56m6 ic2 ∆ 8343699 169 ad 8531 ic3 ∆ 8343682 151 pic 12c508 tr38* 8320740 51 bf 840 d1- 8300606 250 ll 4448 d2 d3 8301120 69 bat 54aw c1 4011135 100nf -20+80% 16v c3 4010274 100nf...

  • Page 34

    3.2 list of electrical parts c1- 4010166 100nf -20+80% 50v c2 c4- 4010166 100nf -20+80% 50v c5 c6 4000241 100pf 5% 50v c8 4000241 100pf 5% 50v c9- 4010170 2.2nf 10% 50v c12 c13- 4000241 100pf 5% 50v c19 c20 4010157 10nf 10% 50v c21 4200517 2.2µf 20% 50v x1 8030221 crystal 455khz p41 7220714 plug 7 p...

  • Page 35

    List of electrical parts 3.3 p76 7220714 plug 7 pole p77 7220711 plug 4 pole p78- 7220709 plug 2 pole p80 p81 7220710 plug 3 pole pcb12, 8001833 power supply, input select & pre-amplifi er ic1 ∆ 8341025 151 4094b ic2 ∆ 8341059 151 4052 ic3 ∆ 8341025 151 4094b ic4 ∆ 8342238 151 tda 7318d ic5 ∆ 834122...

  • Page 36

    3.4 list of electrical parts c17 4000418 330pf 5% 50v c18- 4000416 220pf 5% 50v c24 c25 4000418 330pf 5% 50v c26 4000420 470pf 5% 50v c27- 4000457 1.5nf 5% 50v c28 c29 4000420 470pf 5% 50v c30- 4000461 1nf 5% 50v c33 c34 4010132 1nf 10% 50v c35 4010209 47nf 10% 50v c36 4000461 1nf 5% 50v c37 4010132...

  • Page 37

    List of electrical parts 3.5 pcb14, 8001771 master link audio interface ic1 ∆ - 8341022 138 4558 ic7 ∆ ic8- 8341024 150 4066 ic10 tr3 8320811 51 bc 857b tr4- 8320755 51 bc 847b tr5 tr6 8320811 51 bc 857b r2 5011841 11.8k Ω 1% 1/8w r4 5011841 11.8k Ω 1% 1/8w r5- 5011531 5.9k Ω 1% 1/8w r6 r8 5011841 1...

  • Page 38

    3.6 list of electrical parts pcb20, 8005738 ir receiver and left door sensor ic1 ∆ 8341041 138 lm 324 tr1- 8320740 51 bf 840 tr2 tr3- 8320755 51 bc 847b tr7 tr12- 8320755 51 bc 847b tr16 tr17 8320769 51 bc 849c tr18- 8320811 51 bc 857b tr21 tr22 8321072 19 ztx 690b tr23 8321073 19 ztx 790a d1 830048...

  • Page 39

    List of electrical parts 3.7 c2 4010316 100nf 10% 25v c4 4010263 2.2nf 10% 50v c8- 4000414 150pf 5% 50v c9 c13- 4000414 150pf 5% 50v c14 c18 4000414 150pf 5% 50v c19 4000229 150pf 5% 50v c23- 4000414 150pf 5% 50v c24 c27 4010157 10nf 10% 50v c30 4010271 10nf 10% 50v c33 4200826 10µf 20% 16v c49 4010...

  • Page 40

    3.8 list of electrical parts c217 4001125 15pf 5% 50v c218- 4011135 100nf -20+80% 16v c219 c220 4001143 470pf 5% 50v c221 4001120 5.6pf 5% 50v c222- 4001118 3.9pf 5% 50v c223 c224 4011135 100nf -20+80% 16v c225 4001143 470pf 5% 50v c226 4001121 6.8pf 50v c227- 4011134 100nf 10% 16v c231 c232 4010387...

  • Page 41

    3.9 list of electrical parts list of electrical parts 3.9 3.9 l211- 8020626 coil 470µh 5% l212 l213- 8020714 coil 68µh 10% l214 l215- 8020821 coil 2.2µh 5% l217 l301- 6000064 jumper l302 l303 8021345 coil 10mh l400- 8020821 coil 2.2µh 5% l404 l500- 8020822 coil 3.3µh 5% l501 bp200 8030391 cer. Fi lt...

  • Page 42

    4.1 list of mechanical parts list of mechanical parts 4.1 4.1 9 5 90/99 9001 9015 9002 9006 9005 9004 9003 9007 9008 9009 9010 9005 9011 9014 9013 9012 9012 9013 9014 9019 9018 9017 9016 9020 9021 9027 9026 9025 9024 9022 9023 9024 9027 9025 9024 9025 9029 9028 1 1 1 1 3 2 2 2 2 3 3 3 3 3 3 3 6 6 6 ...

  • Page 43

    4.2 list of mechanical parts list of mechanical parts 4.2 4.2 front 9001 3162622 cover, left 9002 3162830 glass, left 9003 2802056 ring f/clamper with magnet strips 9004 3017028 wheel 9005 2830111 cylinder pin 9006 3162652 clamper 9007 3152726 cover f/clamper 9008 2819251 spring 9009 3164877 cover 9...

  • Page 44

    4.3 list of mechanical parts list of mechanical parts 4.3 4.3 chassis 14 15 12 2 3 21 86 18 20 9121 9137 9101 91m1 9105 9104 9103 9102 9102 9107 9106 2002 2001 9115 9114 2003 2004 9115 9160 9161 9117 9119 9119 9118 9119 9119 9111 9110 9109 9108 9112 9126 9127 9128 9129 9130 9130 9131 91m2 9120 9132 ...

  • Page 45

    4.4 list of mechanical parts list of mechanical parts 4.4 4.4 chassis 02module 8006796 interface f/µph8 03module 8006797 µph8 microcomputer 12module 8001833 power supply, input select & pre-amplifi er 1201 3152799 holder sockets, see wiring diagram 14module 8001771 master link audio interface 15modu...

  • Page 46

    4.5 list of mechanical parts list of mechanical parts 4.5 4.5 wire bundles see wiring diagram page 2.4 the part no. Is printed on the diagram above the wire bundle, as shown. Packing 3392405 outer carton 3397824 foam packing 3946038 foil user’s guide 3508252 danish 3508253 swedish 3508254 finnish 35...

  • Page 47

    Center wall bracket, black, type 2052 1205266 9510 2777052 handle, right 2777053 handle, left 9511 1205266 wall bracket 9512 2038130 screw 3 x 25mm 9513 2043016 screw 4 x 10mm 2930126 bush 3390432 wire holder 3502922 setting-up guide list of mechanical parts 4.6 abo-center v/henriksens elektronik.

  • Page 48

    4.7 list of mechanical parts 9520 9522 9521 9524 9523 9525 system wall bracket, black, type 2087 1208766 9520 3152790 holder f/antenna 9521 2038116 screw 3 x 20mm 9522 2777052 holder, right 2777053 holder, left 9523 2038130 screw 3 x 25mm 9524 3031319 wall plate 9525 1208726 system wall bracket, com...

  • Page 49

    Tm (test mode) names/function for adjustments and service tuner test modes tm 01: automatic offset-adjustment for fm tm 02: manual offset-adjustment for fm tm 03: status for offset-adjustment tm 04: variant status tm 06: check rds name tm 07: setting up of tuner variant master test modes tm 20: test...

  • Page 50

    Glass doors lock when the glass doors are locked it is not possible to open them by magic open. The glass doors can only be locked if the product is in st. By, the glass doors are closed and only by remote control. Press shift 9 0 3 6 9 with no more than 2 sec. Between the individual entering. The d...

  • Page 51

    Tm07 tuner variant setup: if from eu or aus to us: key in the 3 digits indicating the choice. No. 0: 003 = variant us no. 1: 001 = rds on, or 000 = rds off no. 2: 175 = fm starts in 500 khz no. 3: 216 = fm stops in 500 khz no. 4: 075 = deemphas in µs no. 5: 000 = lw starts in khz dividing with am ra...

  • Page 52

    5.4 testmodes, english tm20 checking the display by showing 3 types of letters in 3 rounds until all pixels are used/tested. Press play to shift between icons in the display. Tm21 opens the signal from aux-plug to the ml-output. The display shows “aux 2 ml”. Tm22 test of key-board functions. By pres...

  • Page 53

    Testmodes, english 5.5 tm27 service error detection. The last registred errors regarding eeprom, ml, iic-bus, rs232 driver, cd and lids can be read-out. This test mode is also used for deleting all error-registrations. To toggle between error indications press play . When all errors are read press p...

  • Page 54

    5.6 testmodes, english - 8: toc read error set when the toc could not be read, no access possible to lead-in. - 20: serial communication overrun error expected command byte, but received a data byte. - 22: serial communication noise error check did not match. - 23: serial communication software erro...

  • Page 55

    Testmodes, english 5.7 e7: last error in the main micro-processor. - 16: illegal timer id - 17: timer not free - 21: illegal date value - 22: illegal time value - 23: illegal timer parameters - 32: illegal simple message id - 33: out of message buffers - 34: message buffer virtual limit reached - 64...

  • Page 56

    5.8 testmodes, english tm28 this tm checks the function of rom, ram, eeprom. (o, a, p). To readout tm, o and a have to be (+). E.G. Mem ++- indicates error in the eeprom. Tm31 default settings for sale purpose. Option: 1 volume: 32 balance: 0 bass: 0 treble: 0 loudness: off radio programs erased. Cd...

  • Page 57

    Testmodes, english 5.9 to use cd test modes it is necessary to select cd, in the tm the hf-signal will not be used tm61 focus on. The cd-pen will try to focus. This tm can only be turned off by using tm62. Tm62 focus off. The cd-pen will be turned off. Tm63 starts turntable motor. This tm can only b...

  • Page 58

    Replacement of cd-mechanism - open the glass doors. - disconnect the main voltage. - dismount the glass doors by pulling forward at the bottom fi rst and then at the top. Take care that the glass door does not scratch the display. - remove the seven screws a in the back cover. Pull out the back cove...

  • Page 59

    Removal of gearbox for cd-clamp the product must not be connected to the mains when dismantling. - the clamp must be electrically sealed. - lift up the clamp manually. - dismount the spring r at its bottom most point. - dismount the lead to the motor, plug 9p78. - loosen the screw s and take out the...

  • Page 60

    Mounting of wire for glass doors - turn the wire pulley g clockwise until it stops. (closed door position). - turn the wheel h in click position. - mount the wire in the wire pulley h (the end with the heavy spring). - run the wire in the second innermost groove of the wire pulley h (underneath the ...

  • Page 61

    Adjustment of the glass doors - open the glass doors, press • and wait for the glass doors to close and disconnect main voltage. - remove the seven screws a in the back cover. Pull out the back cover by wrenching the corners c of the back cover to the side. - remove the fi ve screws b, and lift pcb1...

  • Page 62

    Test of master link data receiver/transmitter test of the circuits 12tr30, 12tr31, 12tr52, 12tr53, 12tr55, 12tr56 and 12ic6. - lift p107. - mount on p4. - connect a square-wave generator 10khz 0-5 v to p107-4 (transmit). - measure p107-2 (receive) with an oscilloscope; it should produce the same sig...

  • Page 63

    Theft protection the theft protection is 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. The theft protection is always deactivated from the factory, it is up to the user to activate it. If the theft protection is...

  • Page 64

    Exchange of software eeprom on pcb3 when exchanging the eeprom on pcb3, the data from the micro-processor will be written into the eeprom when selecting any source e.G. Radio. It is possible to borrow an eeprom from another beosound 3000 to test if there is suspicion of a fault in the original eepro...

  • Page 65

    Important when the product is reconnected to mains, wait 20-30 sec. Before operating. All adresses in ml has to be updated after disconnecting mains voltage. Set and enter pin code it is your own choice whether or not to activate the pin code system. However, if you choose to activate the system, yo...

  • Page 66

    If you have forgotten your pin code if you have forgotten your pin code, you must contact a retailer who then requests a fi ve-digit master code from bang & olufsen. Once you have keyed in this code, your beosound 3000 is operational again and the pin code system is deactivated. The cue pin _ _ _ _ ...

  • Page 67

    Dismantling, english 6.1 dismantling glass door - open the glass doors. - disconnect the main voltage. - dismount the glass doors by pulling forward at the bottom fi rst and then at the top. Take care that the glass door does not scratch the display. Rear panel - remove the seven screws a in the bac...

  • Page 68

    7.1 insulation test insulation test 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...