Bang-Olufsen-Beosound-Century-Schematic 电路图 维修手册.pdf

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1、rt. Bang; ;il;il: : : :r : GB 5-1 5-1 5-1 5-3 5-4 5-4 5-5 5-5 DF 5-10 5-22 5-10 5-22 5-10 5-22 5-13 5-25 5-14 5-25 5-14 5-25 5-15 5-27 5-15 5-27 5-17 5-29 5-17 5-29 5-17 5-29 5-17 5-29 5-17 5-29 5-18 5-30 5-18 5-30 5-18 5-30 s-18 5-30 5-18 5-30 5-18 5-30 5-19 5-31 5-19 s-31 5-19 5-31 5-19 5-31 5-20

2、5-32 5-6 5-5 5-5 5-6 5-5 5-7 5-7 5-7 5-7 5-7 5-7 5-8 5-8 5-8 5-8 5-9 Disassembly Glass door. .;. 5-1 Front fabric t,r.:.:.:.:. 6-l Handle/PCB 21 Active antenna 5-1 Rear panel 6-2 CD front frame/PCB 20 Door sensor 5-3 Tape/Keyboard front frame. . 5-4 Gear box/PCB 9 Gear sensor 54 Sf iding bracket for

3、 glass door. 6-4 Transformer 64 PCB 1 - PCB 22 . 6-5 - 6-7 Tape mechanism . 5-8 Bang $:rr1; 4 oisptay rJ:rrl;l 5 Power Supply .T:rr1;l 7 rape dieital ;#:rr:;? 7 tape analos ;#?:; 7 Reset converter ;$:T-r? I .f Seen from the front r I RadioFans.CN 收音机爱 好者资料库 1 - 1 SURVEY OF MODULES 1 - 1 8 cD servo d

4、iagr. E page 2-15 8 CD Decoder . . diagr. F page 2-16 9 Gear-sensor . diagr. G page 2-17 1o Mains ;:i1tl-ii 11 Re_deck electronic ;$:T1? 12 Oscillator . diagr. D page 2-14 17 FM Front end. diagr. A page 2-10 Seen from the back 2O ooor Sensor receive. .,.,., diagr, L page 2-22 21 active FM Antenna di

5、agr. I page 2-19 22 Crossover network, left .,.,.,., diagr. J page 2-20 22 Crossover network, right .,. diagr. K page 2-21 1 / 1 7 8 Z 1 - 21 - 2 SPECIFICATION GUIDELINES SPECIFICATION GUIDELINES FOR SERVICE USE BeoSound Century rV ranfe Type 2651 EU FM-MW-LW range Type 2652 cB, 2653 USA/CAN, 2654 J

6、Ap Operation Direct, easy-touch pushbuttons Optional extra Beolink 1000, one-way Cabinet finish Black Front cover Grey-Red-Blue-Green, type 6037 Acoustic system: Active speakers Output amplifier Sound Pressure Level Frequency response Cabinet principle Croosover frequency Active crossover network Wo

7、ofer Tweeter Net volume Tuner: Tape recorder: Compact casette PretuneJ radio programs 30 FM or AM FM section: FM range 87.5 - t08.0 MHz EU/GB 76.0 - 90.0 MHz JAP FM aerial impedance 75 O Sensitivity 1,4;rV 26 dB S/N mono Qulgting sensitivity 66 dB mono 63 dB stereo Totai Harmonic Distortion 0,8%o mo

8、no 33 dB lkHz lmage rejection 75 dB lF rejection 80 dB AM section: AM range LW 150 -279kHzGB MW 522 - 1610 kHz GB MW s20 tttOiiz USA/CAN Antenna Loop 18.1prH Sensitivity 4mV/m 26dB S/N 156kHz 47dB 50mV/r gOitHt Total Harmonic Distortion 42 dB 1494kHz lmage rejection 40 dB 270kHz 30 dB 1494KHz lF rej

9、ection 65 dB 270kHz 50 dB 558kHz 2x2outputamplifier Class G 95 dB IEC noise/3m/stereo/room 75 - 20,000 Hz +4 -8 dB Bass Reflex 3500 Hz 24 dB/octave Linkwitz/Ri ley 1 0 c m - 4 1.8 cm - 3/q 1 .l litres c46 - C120 - 2 INES 1 - 2 SPECIFICATION GUIDELINES Bang at to-noise ratio Distortion Channel separa

10、tion Channel unbalance Erasure Erasure freqency CD player: Drsc type: Converter system Frequency range Signal-to-noise ratio Harmonic distortion Connections: nuOio Aux Power supply Power consumption fotaiOimensionrW|*O Weight HX PRO Auto Record Level NR Auto ferro/chrome oynattoy iHarO permalloy) 0.

11、15% DtN +2o/o 53 dB ferro t 62 ;B ferro with noise reduction 56 dB chrome 64 dB chrome with noise reduction 3 5 d B 1 k H z 7 0 d B 80 kHz 12 cm (5) and 8 cm (3) B itstrea m 20 - 20,000 kHz +0.5 dB/ 2 dB 94 dB A-weighted O.025o/o at 0 dB/1 kHz Pin t l.t.C. Pin 2 Signal ground Pin 3 AF in left 0.25-2

12、V RM5 47kO Pin 4 N.C. Pin 5 AF in right O.25-2V RMS 47kO Pin 6 N.C. Pin 7 N.C. 230V AC 2651 EU 240V AC 2652 GB 12OV AC 2653 USA/CAN toovnc 2654 JAP Max. 50 watts t wati in stand-by 75x37 x17 cm 75 x 33.5 x 11 cm on wall bracket Optional accessories: Beolink1000 Carrying handle/active FM antenna nfV

13、loop antenna Wall bracket Subj-ct to change without notice 12 kg Type 1501, 1502 ltaly Type 2036 8720043 Type 2OaS r - Bang -:,r, 2 - 32 - 3 BLOCK DIAGRAM 2-i BLOC BLOCK DIAGRAM FOR POWER SUPPLY TR3 Z TX7888 F JBj?- , , ;-! rP32 r-t5vA 5VA P2 - 2 230V! I/A NS 2 - 3 )CK DIAGRAM 2 - 3 BLOCK DIAGRAM Ba

14、ng -r-f-Hs rv t - I l r?2t B:33 7 6 t R RECEIVER 5V t |;l Lr_i P4J I I I TUNER 5VTA l 0 v ,aal 1 BC558C l-, , P4 2i . p3 -2 r-l-T-f- l r c 7882 88 r -frF- -lJi 1-r .u t : ffi;- ov ,:i:lL;:i l- o .0 T- 4 DISPLAY |ool., | BrPbr b 1., - | BCP53 6 - 5V 4Vru l l 4 v )V 99 tr = orrcneu x Bang l atr. I f-

15、l 5 o r O t D i,/C POR I G o d 6 f d .OtNTFR t,/0 P0Rt t 2 - 6 IAGRAM 2 - 6 BLOCK DIAGRAM 2 - 6 DECK 0 9 SER. DATA _-_ cuE 112 f- 2 I HRE. MUTE l,/ - rrtn-nEc. - N. n. - PAUSE l4SS # P . 8 . B D E C K A / B 712A t|)xo-c.a -e # P . B - l V t l T F ,- - P . 8 . C R , / F F P . B . 1 625 WIND REl, ND -

16、a cAS -4 FE/cR -t- *-t -.1 -t- -t- EOUALIZATlON CR,/FE BIAS CORRECTION CR,/FE _-_-_-_ H.S 2 ,t-+ spr I D I oLA_ t./A-o +MUTE f L - O U O D 2 - 72 - 7 BLOCK DIAGRAM 2 BLOCI BLOCK DIAGRAM FOR CD I r c7800 PHOTO DIODE SIGNAL P ROCE SSOR !_l!c _ D S C MOTOR arcrsos lll | ,.,u I I DRIVE r x3?,1f - r L-:-

17、 - J NlONITOR DIODE 8 I C7402 RADIAL ERROR PROCESSOR _ H 8rc7843 f TURN TABLE NlOTOR AMP. 2 - 7 CK DIAGRAM 2 - 7 BLOCK DIAGRAM Bang . 2105 0/t i zroT Gs ; 2108 cs i 2r0s c8 i 2lr0 D8 i 2l l4 816 i zus 817 i 2116 818 1 2ll7 D20 r 2ll8 F20 i B zlls o2l 1 2120 F2l | 2l2l E7 | 2t23 cA l 2t21 et1 | 2125

18、09 | 2t26 010 | 2126 ilo To DTAGRAM r,/M I c 2129 or3 pcBz . pLUc zo | 2t3l 016 Jsr i ;lil l? 1117 l. 2r1z 16 | 2143 t3 LEFT I Zt11 K1 lP28-l I ZtlS Js I D 2115 L6 | 211? Jl5 | 2r1B Jt5 | 2149 Jt5 r. 2150 JlG | 2tst rtz 3t87 F22 3190 tfl3 3191 8t6 3t96 8r8 3t9? J23 3198 0l? 3200 c6 3202 x7 3223 CA 3

19、225 Jl8 3233 DZ 3236 010 3239 0t3 3210 nt 3211 ltt 3212 Ctz 3213 n1 3211 819 3215 J22 5l0t F5 st02 01 5t03 0s 5104 8t2 5105 8t5 5106 012 5107 J3 5t08 t? 5t0g t3 5llt 0t1 5n2 Lt2 5l13 08 5u1 16 5!28 Bl0 5129 Jt0 5l0l il3 6102 r(1 6109 F22 6121 tll8 6t23 il7 ?tot 04 7102 c1 ?r03 E9 7101 8t6 ?t05 n3 71

20、06 J22 1107 L22 7108 lt1 ?t09 0r1 7il0 L2 ?il t t2 7il2 n5 7l13 iltz 7tt1 n2 ?u5 I1 7il6 C7 7t20 022 9160 J7 sT0P stc | . 3103 83 I n 3lol c3 r 3105 E2 MU|L i gtoo os | 310? 01 srEREo t 3108 Es | 3109 c1 E | 3ll0 0 | 3lll 05 | | 3ll2 c5 corJtIER | 3tt3 R5 | 3ll1 c7 DT I 3ll3 3; | 3u7 C? ctocr( | 3lt

21、8 8? | 3t20 Rt3 | .l 3tzl Bil I gtzz Blt I 3123 Bt? | 3121 818 r. 3125 820 | 3126 820 | 312? 020 | 3128 F20 i r 3129 016 | 3l3l 019 i 3132 013 | 3133 olo l. 3133 rr0 I 3t31 013 i 3l3s F8 i 3110 L2 i, 3l1t t12 i - 3t1z )tz i 3113 J4 i 3111 Js i. 3t1s r5 i 3u6 H6 i 3117 r(s i 3118 rs i r :l;3 ti, i 3t

22、st 0t2 | 3152 012 I 3153 L3 i 3ls1 L1 I 3lss nlS 1 3156 Il5 | 315? 011 i tl 3158 iltl | 3lsg Nt7 | 3160 il18 | 3162 Jt3 l 3t63 122 | 3161 Jlo | 3165 Jl? | 3166 Jl8 | 3t67 Jt7 | 0 3t?0 t2l | 3t?r Lzt | 3t12 K22 | 3l?3 X23 | 3186 021 J FOf, AM J FOR FM .Y FoR tS I toR us -+ 2821e6 2-112-112-11 DIAGRAM

23、 B rApE DrGrrAL (pcB DRAWTNG sEE pAGE 2-13) RECORDER/DIGITAL PART MODULE 7 RE-DEC(DELECTROIII C IODULE I I t - - - - - t INTERC0NilECTI0N | .- B0nB!_ | i9 PR(TECTI()N DI()t)E FoR 7639 CRPSTRN f10T0R A 3645 PVCC ?529 8C807- l12-11 2-11 DIAGRAM B ) J l 807- 40 il z.zv vl lEl3641 t N l tl _ l CLOCK INP

24、U OS - SERI8L OUI 8 SISGE SHIFI REOI STER 8 8IT SHIFT REGI STER OE ?709 40 FROIl P I N +5V 366 I 3813 2-11 IAGRAM B 2-11 DIAGRAM B Bang n00uLE t2 il DrscRnn 0 +5v 5V _ IC VOLTROTS A TERSURED IN + PLBYERC( noDE O r.v.u I e e) o_ - o_ -. ; := o_ ca - E. O o_ := L - O CO E O o_ C) ; _l (Y O o_ a ; Bang

25、 ;.-, rR , nv+zzN 9 rlh-rFt 4V I ii ii- lrr r.ill looN n s.ovlra REC 1 3 .8V ?655 ToVnn BC848B in oJ P8 IN R R:GHT PB IN 8 R,OHT - - 1 P8 I FEC l;: t z o T. I IF lp 2-12 DIAGRAM C 2-12 2 3 4 5 6 1 I N/OUT OUT/IN OUT/IN I N/OU CONTROL 8 CONTROL C VSS CONIROL R CONTROL I) I lll0uT OUT/IN OUT/ I N I N/

26、OUT 1720 1121 HEF?O69U8T r* l v c c I l- | ,.t- l r Lf,_J- vcc VR 136 l 9 1 . PB TEYIL B DEC|( L o | -.- | _ | | /REct P8 IN 8 LEFT I r-r NS/HS l 4MU7 | 100P I 12669 12?65 1268s t100P trNs iiN 163r I uo I lu*o lQl3srs l=l TI l vRD nUTE: I L HS-REC:VCC REC: I /2 VCC J P8:0 c I I rr=vcc CR02=0 0ECK 8=

27、VCC 0ECK fl=0 70P 5628 .3v 3688 . 2!18 Tff T1N5 T L 2612 vR I l vRD .31_-f- *trau 330N lYl 2614 36so vR T ,/|;-1 I vR0 PB I.EYEL ll?;, B DECI( R P 8 R 6 l s _ 4 1 3 IE 1720 ld HEFTO69UBT t/cR EQUAUZATIOTI RIC AMPUIIIR LIIT NJf134 1 5I ?70s 2103 2i09 100P 22N 3? 15 70P SPED EqUAUZAIIOII 3905 uu7 1253

28、 7705 N J M3415D ?ll0 :100P OSC CONTROL RIC IEVEL R 2138 4MU1 VCC l 7 3740 21 46 118 3N3 vR0 .E IvR0 PVCC 3121 1721 HEFTO69UBT 2-122-12 rd % % -3-J-j-i- q lil lu t : l.l ,o 7r=. a- h- o ! o . f- t- l- cctl (j)H Z H H f - m O O F I | / 3 I C I f 4 N C I 4 D;:+ l ;:t_-_) I P ) - 2 r .L - -l TR4 BC848B

29、 2/3 ICI I 4 H C I 4 D I A P E O S C . 8 .461|4H2 / 8 . 5 O 2 M H z R3 T R l s B C 8 7 - 4 0 CONVERTER SMD PLACED ON SECUNDARY SIDE r. 7 pi- srr / R z 0 m o - o c a , . t- n Fr tat- (O DEEI4. R3865 s D6 Dl l./E DIG TAL OUTPUT 287 | s lC2855s = 3o =3A l l 0 0 n l l 0 0 n ,2 rTt4 - r40T0R CONTROL D I

30、F I B I T DAC u ol Pl D= ,grl - P t 8 4 r -L RIGHTlar-l I B c2869 t 0ru -r re zzv9l 2 8 5 5 s - 4 n J 2-172-17 DIAGRAM G 2 - 1 DIAGRT DIAGRAM G MrcRocoMpurER s; 22 - I Tzzoo l)zoo / 4 L . L U r - | I ! a r) E o c32 220 .I t t 5 l c r S zo!zol 23 I. t 4 I. 2-17 DIAGRAM G 2-17 DIAGRAM G Bang l - l- l

31、=l / I M5 L. l I l o l l z l o l L ! l o_l S I 5 _ _._t56_K57_, L! o . l z o .lE =; I c! c! d (v*IYro a | c l d l f i 7a r-He l: i l l obl : rl: Bg l d - O O- o _l F I rloi o t a o :- a-) 3 7C C344oA C35 1.- i: t t z a I r v v TR54 S I GNAL A -7P. I4UTE 7C c | oR 3 t 4 l ! Cq ) 1 t l u |r)l a | /2rc

32、3 4558 R594 C370 2 p 2 4C o rc) U. lr) (v. C3,48I ziod I c r o S -l 4cT | 2p2 /i ior El pL l u T R I I BC847B fa a C I O O p r - d R A 5 c98l I u R 3 r 7 5B= 22Opl I TR9 84 c t 2 l 4C c r 2 0 l o . - 22oeL 9 d l u :g o ? I ,t?t :-F t p l l -(6A I 5 c = ,ot C I c IC | ) l C357p R57 | 2p2 3 |r) cv |-.

33、 t l u T R I 2 4cl BC847B o R 3 l 3 A C c r) AN4PI T F T FR SOt tND K - - I C- DDn.traSING e | | v u l r a , . , , l U . b V j c J95_Jp7_l(?9_Gi1 AUX I4UTE l / 2 Y r z t t r n z | i s c H - / K R A I r r I :r PAR SHIFT REGI STER LEFT CD P25- t- LO a. Tl TO -4-L IN P2 | -6lR IN l. rrurr. ,= HH C375 4

34、 22 L -ltst 2n2 * i l 5 c l!L n,uo ff=l TEST P26-3 RIGHT TU I C I 5 8 TDA73 I 8 t tz I c3,13 , 75 | R574 r 5B t 2 lr I , L 6 ol |r)l N L DIAGRAM I nupLrFrER souND pRocEssrNc i- I c20 5C t o o c t 2 9 f -T- l o o n l fo LEFT 9 BASS I , R6 , 2_ c85p. R t 4 * - o o - - o . ? ? R ii or 1P5315 ; lU | - u

35、| a-44 | crf 5 22 *?o 1o0o | ,f ffiF -ll-alrvvrr t ) f.) N) CI : d C 8 1 p R l I?C BUS DECODER i RIGH BASS 0- I / U )344o Bang .-L tr 2-212-21 DIAGRAM K 2 - 2 DIAGF DIAGRAM K ourpur AMpLTFTER, RIGHT i I O0n 440 46p I OOn R 7 C43p I tz I OOn 165 / F F E R69 -9V t / 2 IC6 | 458 t / 2 IC5 458 c320 -r-

36、- I l O o n + - R52O C54 p 5 2 t c C 2 n t / 2 rc3 4558 c 3 4 5 It c?8 cl I - o- C5 I 2 n 5 t / 2 IC5 ,1 664 t / 2 IC7 LF353 3 F N l - t .I d l L l: C4p .1 t 22v I II I -r - l l O o n C22p- u_s T - I l O O p I -2 _ BC8478 f r l a 1 R 8 I . R 8 J 2 n 2 . o t l-21 JRAM K 2-21 DIAGRAM K Bang rild;4ka I

37、 U I S I B C 8 4 7 B Ioo - P4t-3j ) P 4 1 - 2 SMD PLACED ON SECUNDARY SIDE . JL ,fl,1 :,e?tr+#l:w-_EI H ltH* ffi ffi, ffmffi: -ffiTwTl:l h ql 5ffi F;tri,tr1GF, TTF=; *l *- * *lilt Il ll*l -.r - ililE*, lrfr# l;,ta i *,rti: fdt l ffilFllff q H E HF ;d#HffiffFs-T,i;HF -l I dr Jt s* Jt - l d j I tr:l l

38、 j:t I I jll ffiL +ffifu: , *=*_ tu_f - qggqlt )_ i, i t ry BWPflgg ffiHH I ry tttk lp*t * HH( li j f iHl iii ITT iTl RKTIVE CROSSOVER RIGHT CH8NNEL I uuuu,Lb ; *J_j, 8*Jr uE cROssovER LEFFdHffitrlft P ,TJ$ ;,H,;* ls) l , , r r : ! :.t ,l B - : tl (-, ql*, r r u i *t* ldu ffit ; rfi - l l * l ;. ezP

39、6t - - l l = 8 l | 1 r l rtrr 1 l F c ? s ( m ; sH-ffi lll S: r l L t 1 1 6 25V or-r ta? I s lYl lY- | rn 4D, : l o l + o E l - : ; t 4 E I t t-l D2 3 I Bt 2E r T R BC | 24p 40 t l22OOy R70 TR25 2E 8C841 TR28 8C847 TR8 BC857E 5Cl I r 5 c T :u r T F I | 30 3A A t 3 2n o |r) - oa R 3 / : li IPe P U -

40、J 1 r P 9 - 3 j-?.+i iji= zr c38 22o u) t- t TR29 BC8478 c39 l i n 5 L c24 5OkHz COI4PONENT PLACED ON PRIN4ARY SIDEl(J l PAR SHIFT REG N4OTOR ON/OFF DOOR CLOSE CLAMPER ON/OFF opEN,rclosE- TAPE ON/OF 47O0p l:c BC847B 14 2 ll R39 *=$iif i; | | AB -lYl + | + !iC2 lc #1 ,au- Fgn-A # r r J - r o 2 A 5 T

41、l C l 6 G35 R38 3 3 0 0 u 1 - t 5 v CLOCK 2 Pl3-528bo-sr l.,s | 3 A ? 5 7 2n t 2 3B 2 n | 4 r P l 3 - 4 lC2p 60 L M 3 I 7 t o l 4 V r c o |.) -) T a PAR REG OTOR N,/OFF 25V 3D d TR2 I 3E 6 powrB suPPLY AND rvoroR coNTRCL- ,| - I, P23 -8 I60 o t l-n _ffi A. ioJ 5vA 1 3 8 1 0oOr - D20 I ooi I lrl D l

42、5 p -r - l l O O p EI 3CON ) D22 20v 1 V ( 25V Y t20 o o d TR32p ZTX788B 16pA P l 5 - 9 co l-. lr) (J co 5 V l C5 -l-* 1 , . TR24p I 4VTU t - L! l- = rn l - O 0 l R A R224 - TU ON,/OFF c! c! c (v. IEle d-rz I r z t - t r r z | - t v 5vi,7 P 2 l - 2 r r5vil-t P2 | -7 rffi L-r*-l L! 0 ll l _ _ r l , f

43、fi I ers l,- ,r, ffi* it r + l E f iz ;l : I l-l B E r-*l lld J;1 mtm 1;r l-rnrcI ry ElEi ts19 x-_,;, mr,lr_ElEl I JE ll- el-C - l,#r.El ll tczrt fl I TT tc? l i 1;=-L- + cr3,t RBs *lqJElBI * ob i - l , H l E l EB I ilElA r * . + n l$R I ,1st; I u,u ,q_e - ,: I bT-T B ; t: ll tll T IBH ,1, I *1, lrp

44、2l c I T rl I I 3 s: I f- I rc! :( L.?l ll J crro t l l t u I i ; l r l | ! l l f ; fr.,:* t l # d q L N t ) : -,/ f1 ralrl h,1a , lltl l3l io:sl l3L lll I l l l - I i * - | +Tatc l , 3 :,:t7 9 Td r;r - i:l I t t T I : cl? c,!n3 I fREl I+ l:, lIf :s: 0?7 ; I;I 19 t.l21 : t : l I l.i o f,ol l-1 ,t -

45、I Rlr tt t t t . - l J I t,5 5 8 : l1F l6 e lsl.tE I E r ri;r J? l9l I E8 - lffi lEl ITY r E : , -. : Jl , eP!, ,j J g B . l l l l R77 I l n il ill R L J L J A o,*. J.-,-t l I I / r. tcls ,.JEJE3 I D d/- -l|-ji,l EH .Jb:4 Bril I;, -,7(;) :Ee* IR3(tfut# -L * j i c l-r, I hffi # *ia lffi crt TRrs I l-

46、 c l l E r r EffiF-:*-i,EE H | - r - r - r B l i * :l ir ,E;Tl li,ii, i ,r4m :Hs lr lI r / * tr crr Ll S cp? /, -24 WINGS 2-24 PCB DRAWINGS 2-24 PCB 10, MAINS i .i oltl rN ryru a?!l 26sgi6:Ey . :,: ,:- .l:.: :1, Rl * / l,:, -=l r: : -_-. l ;i : ,: ,l: : : : / :1.:,.: .; ,. ,:.: 1.,1, , :,t, , / I 1.: RLr | , .r rl-_lrRRro oi oJ , TRftFo- A I + ! ? 1 + l-_l: ,i , II,lR INS (_, , ,1 ., 1, q ( ) 5 - 1 5 - 1 ADJUSTMENTS TUNER Adiustment table WaverangeInp