Kenwood-KX66CW-tape-sm 电路图 维修手册.pdf

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1、rnoO reutto;l a.*, (K29-2539-04) A53-) lid assy (A)*Cassette Iid assy (B)* iA53- Knob (Button) (K29-2539-04) Metallic cabinet 1A01-1557-01) Tape counter (B35_oo35-o5) nob assy Button) 29-2oo1-o4l Knob (A) (K29-2632-03l Knob assy (B) K29-2628-04l Knob (SIide) (K29-2634-03) X 2 Cylindrical receptacle

2、Eo6-08o6_05) L Fooi Jo2 lJa2 O161 04: O170-04: Phono iack (4P (E1 3_0446-o5 Front) x 2 Rear x 2 Miniatue phone iack (E1 1-o1 65_05) Power cord bushing (J42-o083-05) Ac power cord* (E30_) * Refer to parts list on page 38. KX-66CW KENWooD SERVICE MANUAL ,ry ,mo1 RadioFans.CN 收音机爱 好者资料库 cONTENTs CoNTRo

3、LS, INDICATORS AND CoNNECTORS ,. . .,. . 2 D|SASSEMBLY FoR REPA|R .,. 4 BLOCK E:= e b,;P.9*ot P 1; a + 9c 3 -_ 6 _-6o 6e3Et o o 9 6 E o).E q e:tnt :bp6.3p3 tLOEF=OEF o !o E o F u) . c E o o ! E G o ,= o I o !o = o. o o o 3 ll c ,9 o o o o ,9 Cl (j o o o o !o = fr FoP : , E o-,o c - c F Ei ! ;a; g .l

4、o c c o (/, tr o o_c o(_co Oo o* C ao * O a- oi:F,- o=(D(o d)h .9F -. i t d8,E p,b b E Po E E E. L -.c * o 9 E E r!r+L MEGHANISM DEscRIPTION E, G_ EF sE EDo ,i c Fo OE) tl.tr ,i oH Oc .o g, o)o ,= 6_ o= l!FL.!E oF 3 o. q, lE l g o-c Y lJ-F o L L o J o c F, o -o E! _E o o Pa o- Eo o -= 6l EA 8 .!o E_

5、c (D E(E E g b. EE = a82 = oE.p3 Oau -cxo P.Y c o o,= -yoL =,p,3 J o.o) = o. u1 o c( o o !o .x .9 o (D ,6, o- LL o.9 (t)(/) o)o oD o. Eo- o F tL (/) o oi =i lc, lo 1.9 lo lo /o ,a g 1; E ElB:;, .H 5 E En ;_E;E -+9 = o_ _ 6 g=gi; Epo.!P.;i:c ,l!cc6) qD c o o_c o(E-c6)P og * ! (/)o sU_,- o,E ts tsbtsE

6、 .=o o)-; 6aqEo,E o .:, P : !-_!L io P tr a bo 9 EFu-ts MEcHANlsM DEscRIPTlON E o trN o)o ,tro. Fo oq) .,E ! -,9 o- lJ. F i c ll o o 19 KX-66CW ADJUSTMENT llo.ITEl I llPUT sETT I cS 0UTPUT sETT I tics CASSBTTE TAPE DEc( SETTIliGS AL tGlitEllT P0I ltTsALGN FORF IG. CASSETTE DECK SECTt0ll TAPE: ilORtl

7、AL. DOLBY: OFF, lIPUTLIliE 0dBs-075Y REC/PLY HED t1DEMGiDTIZTI0l POER: OFF Renove the cassette door REc/PLAY head Demagnetize the REC/PLAY head vith a head derrragnet i zer. l2lCLEN I llcPLAY REc/PLY head erase head, caps t an, pinch rol ler Clean the REC,/PLAY head erase head, capstan and pinch rol

8、ler usin8 a cotton swab sliglrtly danrped vith alcohol. t3 Z ItlUTIitTT-1 14 10kHz,-1OdB (B) PLAY Azimuth adj ustment scre* aximum output Pc BORD (x28 1820 xx) TPD SPEED (nI SPnrD) tTT-1 1 1 3kHz (B) Connect a jumper betveen GllD and TPl (TP2) . PLAY (x28-1820-Xx) DECI( A: VR6 DECI( B: VR4 Adjust th

9、e tape speed so that a 6kHz signal is produced at the center of the tape. (a) ii) TAPE SPEED (NORHAL) tTT-l 1 1 3kHz (B) PLAY (x28-1820-xx) DECI( : YRl DBCI( B: VRS Adjust the tape speed so that a 3kHz si8naI is produced at the center of the tape. (b) m PC BOARD (x28-1820 x, x87-1100-04, X87-1140-01

10、 PLYBcr LEvEL (a) tlTT-150 40lz (B) PLY (x87 -1 1 00-04) DECK A: VR1 (L) vR2 (R) DECK B: VR3 (L) vR4 (R) Output leve1: -6.0dBs (c) (b) tTT-256 315HzOutput level : -9.0dBs (c) llTT-256U 31 SlizOutput level: -5.0dBs BIAS CURRENT () 1kHz,30dBs 10kHz, -3OdBs (B) Adjust VR3 so that the REC monitor output

11、 becomes 29dBs at lkHz, then record and reproduce signal of lkHz and 10kHz in alternation. (x28 1820 xx) vR1 (L) vR2 (R) Record lkHz and 10kHz in alternation and adjust the variable resistors which control the bias current so that the same playback 1eve1 is obtained. (d) RECORD LEVEL () lkHz, -10dBs

12、 (B) Record and reproduce a lkHz si8nal under the conditions set in (2). (x87-1110-01) vRz (L) vR1 (R) Adjust the variable resistors so that a playback leve1 of -9dBs is obtained. (e) 20 KX_66CW REGLAGEs ill TEt RECLGE DE L,DilTnDE RECLACE DE L SORTIE REGLGE DU IAGIiETO -PHOIE CASSETTB POl lTs DE Ln

13、LIGlExEllTALICNER POURt,I G. SEcT0ll DU XCIETOPH0IiE TAPE: ORilAL, DOLBY: OFF, EIITREE: LlllB OdBs : 0?75v Tl|TE D EtlREGISTREIElT,/LEOTURE tl DElAG lBT I sAT l0ll POER: OFF Eloi8ner la porte. Tte D ElREc I sTRExEtlT,/ LEcTURB Dema8ntiser Ia tte D, ElREG I sTREtEtlT/LECTURE avec un dma8ntiseur de tt

14、e. L2 lETTOYclPLAY Tte D, EIREG I sTREtEllT/ LECTUBB tete d effacement, cabes t an, 8a l etpres s eur . liettoyer 1a tte D DllRDG I sTREtEIT/LECTURE la tte deffacement, le cabestan et 1e 8aletpresseur avec un coton-ti8e lgrement inbib d alcool. t3Z I tUTtTT-1 1 4 1 0kHz. -1 OdB (B) PLYVisd az i rrru

15、tsort ie maxirner II PLQUE ItPRItEE (x28-1820,xx VITESSE DB DEF I LEtEtlT (HI SPEED) tTT-1 l1 3kHz (B) connecter un cabla8e entre les GllD et TPI(TP2), PLAY (x28-1820-xx) DECK A: YR6 DECK B: VR4 Rgler la vitesse de bande de a9on quun si8na1 de 6kHz soit produit au centre de la bande. (a) ( ii VITESS

16、E DE DEF I LDlEtlT (li0RtAL) tTT-1 1 1 lk.z (B) PLY (x28-1820-xx) DECK A: YRT DEC( B: VR5 Rgler la vitee de bande de facon quun si8nai de 3kHz soit produit au centre de la bande. (b) m PLAQUE IMPRIilEE (x-1820-xx, x87,1100-04, x87-1110) l I vEU DE LEcTURE (a) tTT-l50 4 0 0llz (B) Pt.Y (x87-1l00-04)

17、DECI( : YRl (G) vR2 (D) DEC( B: VR3 (G) vR1 (D) Niveau de sortie: -6,0dBs (c) (b) tTT-256 315Hzliveau de sortie: -9,0dBs (c) tTT-256U 3lSHziiveau de sortie: -5,0dBs oOURAIT DE POLARtsTI0l (A) 1 kHz. -30dBs 10kHz. -30dBs (B) B-9gler VR3 de faon que la sortie de noniteur REC soit de 29dBs lkHz, puis e

18、n re8istrer et reproduire des si8naux de lkHz et l0kllz en a l t ernance. (x28-1820-xx) vR1 (c) vRz (D) Enregistrer un si8na1 de 1kHz et 10kHz en alternance et ajuster 1es rsistances variables qui comnandent le courant de polarit de faqon obtenir le mme niveau de lecture. (d) l l vEAU D,ElinEGtsTREH

19、EliT (A) 1kHz. tlOdBs (B) Enre8istrer et reproduire un signal de lkHz dans les condit ions prcises en (2) (x87-1140-01) vR2 (G) vBl (D) Ajuster 1e8 rsistances variables de faqon obtenir un niveau de 1ecture de -9dBs. (e) NR cS I t3 il 21 K) t1 l2 i ii n 1 2 3 ABGtElGH NRGEGENSTAiiD E I liGAllcs- E I

20、 ISTELLuilG UsGAllGs- E I lTDLLUtG IAssBTTEllGERT- El llsTELLUtc BGLB I cH PUlTE ABGLEIcHEl FURBB. CSSETTEN-DDC( ABTEILUTAPE: ll0RtlAL, DOLBY: OF|, Etcllc: Ltlu 0dBs:075v 1 AUFNAHtlE/tIEDERGABE (0PF tl EllTIAcllDT I s I ERUIG POIEB: OFF Den (assettenfach deckel oben herausziehen- AUFlIttE/ I EDEBGAB

21、E-Kopf Entna8net isierung von dem AUFllAltE/ l EDERGABE (opf . nit einem Tonkopf Entmagnet is i erun8sdrosse1. LZl REINIGUNC PLY UF lillIE/ lIEDERGABE Xopf Lschkopf, TonleI i e, ndruckrol Ie. AUFrEXD,/ l EDERGABE-Kopf , Lschkopf , Tonvelle und Andruckrolle nit einern leicht mit Alkohol befeuch teten

22、 lattebausch reini8en. t3 AZ l ilUT- E I l,STELLUlG tTT-114 1 0kHz. -1OdB (B)PLAYz i mut Einstel 1schraube llaximaI Aus8ant. II cDDRUOKTE SCHALTPLATTE (x28-1820-x BA NDOEScIi INDIGKElT (H l SPEED) tTT lli 3 kHz (B) Ei nen schal tdraht zrrischen GlD und TP1 (TP2) anschl ie8en. PLAY (x28 1820 Xx) DECX

23、 A: YR6 DECI( B : YR4 Die Bandgesch*indigkei t so justieren, daB ein 6kHz Signal auf der lrlitte des Bands erzeu8t vird. (a) ii ) B NDC ESCH lNDIGXEIT ( NOBltAL) lTT-111 3kHz (B) PLAY (x28 l820-XX) DECK : YR? DECI( B: YR5 Die BandBesch*i ndiskeit so justieren, daB ein 3kHz Sisnal auf der itte des Ba

24、nds erzeu8t yird. (b) m GEDRU0KTE SCHALTPLATTE (x28 182O-xXx8?-1100-04, x87-1140-01) l EDERGABE- PEGEL (a) tTT*150 400kltz (B) PLAY (x87 l100-04) DECI( A: VR1 (L) YR2 (R) DECK B: YR3 (L) vR4 (R) Aus8angspe8el : -6, OdBs (c) (b) TT 256 315kHz us8an8spe8e1: 9,0dBs (c) ilTT 256U 315kHz Aus8an8spegel: -

25、5,0dBs LEDRLAUFSTR0l () 1 kHz . -30dBs 10kHz.-30dBs (B) VR3 so justieren, da8 der RBC toni toraus8an8 -29dBs bei lkHz yird, und danach abvechs e 1 nd Si8nale von lkHz und l0kHz aufnehnen und r i eder8eben. (x28 l820 xx) vRi (L) vR2 (R) Signale von lkHz und l0kHz ablechselnd aufnehmen und die Regelgi

26、derstnde, die den vorma8net is ieru8sstrom re8eln, so justieren, da8 der 8leiche ieder8abepege1 erzielt rird. (d) AUF NHi EPEG EL () 1kHz. -1 0dBs (B) Ein lkHz Signal unter den in punkt (2) beschriebenen Bed i n8un8en aufnehnen und reproduz i eren. (x87-1l10 01) vR2 (L) vR1 (R) Die Regelgiderstnde s

27、o justieren, daB ein vieder8abepe8el von -9dBs erzielt lird. (e) 21 22 KX_66CW ADJ U sTM ENTlREG tAG EslABG LEIcH SYSTEM CONNECTIONS AG Gnerateur audio frquences NF-Signal generator AZIMUTH ADJUSTMENT SCREW Kx-66cW Ac voltmeter voltmtre cA Wechselspan- nungsmesser oscilloscope Oscilloscope Oszillosk

28、op 22 23 KX_66C kHz nd ie ron aB e8e I SYSTEM CONTROL REcoRDlNG AMPLIFIER UNlT x87-114o_01) lNDEx scAN Fe d 66 l s*L c92 !l , 4l l, iii.3 li* :;.r+ o, A DECK Ml PLA Jnz ft AA, m, l er,l : n-Zol .-./ , . F?6- C|4 5-8-Ca ,;i:!|8.lll. i1*.l,i: .Bgq 1,t1ja: ;.:1.!,l, :l,:l,S:ll, l : i .,:R28 1, ,4ci,. :

29、 . ),E!,., : l ., ,; 1, :.E4 l,Btil i,:;!:;:; : ,l:3gl, : : R32,l , .,R44.| : , ;, , _X2? -l _-fi :ii: ;.:.,R4e4 :l:l l .,R8 - ,: : mt1_o Nffirl . q-l Pl_U l. l FILU Rl6Y , , -v ,:,3,1, :, .illiS L6 vl J6l J l62 _ _J!53 - MEcHANlsM ;1i:3ia i*ll? ?:f _,.,;: ?:?:* _PLAY- 25 26 ,*l L # a B DECK MECHANI

30、SM sTop pAus. lE - K r M r o I LIt oUT PLY LINE lN E l$E ,il ic p a, r il I I l r-, !, l ll DoLBY B/c NolsE RE- DUc_ TloN UNlT (W02- 0693- 05) 9 J162 163 FFrrr.r.r.Fr.rn 82 cN PEAK LEVEL dB Kx-66clv (Kl Reer to the schematic diagram for the values o resistors and capacitors. sYsTEM cotTRoL .,o PLAYB

31、ACK AMPLIFIER UNIT (x87-1 100-04) 26 ,- i! !a6 11 _5 3 !13 lr ( l B, -Y Y Lv Iy DoLBY B/c NolsE RE- DUc- TloN UNlT (Wo2- o693- 05) El LINE IN tr ;,., 1*:9 ; ii6sx ; .:;l,: nt*i.*i .-.i.ae. j ;Sa.: ,P ffill ll.l.l.,l i ., R69 to, Rl ,i;:i _l_:_ | t- ir iiij PEAK LEVEL dB rT.fi.ff.Fffff.Fl SYSTEM CONT

32、ROL PLAYBACK AMPLIFIER UNIT (x87-1 100-04 27 LINE oUT P.C. BOARD (Foi! side view) la lla 1 nt 1 l, ,l |l:I ,l l. ,l, t.l:.l , .|:. N|- .1.1 .ll. ,l- ., _J_|_69_ l rrr H t c5l Dl:rul:t a3o E Iv E .l . !l * il I .lal ; 3|:D A DECK Ml *s 11. pAusE sTop .- PLAY- 28 c79 q(, l l cra 3l | -| cll I REcoRDlN

33、G/PLAYBACK UNlT lx28-1820-11| DECK MECHANISM X92-1l70*o6 ! _ nn E nc F ne Eil SYSTEM CONTROL :t, o *s c9? REcoRDlNG AMPL|F|ER UN|T (x87-114o-01) lNDEX scAN POWER SUPPLY UNIT lX27-1560-x x ; iozg a* it ost i+o3o - Js4 ., l9l j_3-, Rlaa Rl4 E!6 Rl4l .!, 02? loe6 Rl95 _l9il P LAY MECHANISM a T:.i :rcel

34、 D :E .#i*u 0 4 wl Refer to the schematic diagram for the values o resistors and capacitoJs. Kx-66cW ( K) 29 VOLTAGE TABLES x87-1 100_04 lc1 x27-156o-11, -22 o1 lr-rffiil| l c l rzqvl I a l rz.+svI 02 r.-r- -.l lTw l rT - o3 tH I e I ro,rv| o4 ri-f14_?6vI I c I rg.svl I e I ro.rvI o5 le-T-ffi;v1 l-T

35、rul I a I e,ogvI lc1 tl-rT;l r-r* 1 tT-;.vI x87-1 14o-o1 ffi lc3 H- l-fiV- |_;-r;v -1 lsIcv l lsI gv l ffi Tt-rw-1 ffi ffi (35,36 ffi ffi (t39 tF-T;l ffi ffi o52 TTq r;- fu oV lz 11 o.5V2.9V 22.4v1o 30V2.9V 42.4v2.9V 52.9v32.9V 62.9V42.4v 72,8V5o.2v 8oV62.4v lc6 1oV 20V 3 4 50V 60V 7oV 8a.2v 90V |i

36、It l, lc3 0Vo2.1v 21 1.3V 30V12.8v 2.8v31 1.3V 5 2,8V4 2.8V 61 ,oV51 2.8V 12,8V6 81 ,oV1oV 982.1v t- 30 AF AGAH AIAJ 11 11 4 A MECHA ASSY (x92-1l70-o4) l-*;- l- 8 MEcHA AssY (x92-1l70-06 fi il.;-l BE0 soL_ _ so!1 lNH Dl RE aT l ,-: (X28-1820-1l)(E/5) n,;*- lr.;ffi- TL ch oUT L*n E ,f,n L*.n , 9 18ff

37、i Innp FAila :mlF5d8l lT3dTl F L IMuiE lDRlvEI c63 L-_l L5 c92 j0( DC vo|tages are as measured with a high Voltmeter With a cassette loaded at pIay VaIues may Vary slightIy due to variatic individual instruments or/and units, Bias Voltages are as measUred whiIe in the recor( |.-_-_- 1 d s3 (x28-1820

38、-1l) tc2 : I c3 : Ic4,5 : I c6 : U PD 7 538 Ac- 037 A N 6aaa UPD4o8l8c TD62554s 0l,2,7,8, 13-16, 18,21-25,27,29 34,37-9l41-46,49,53 : 2scl74os (Q,R) or 2sc945(A) (0,P) o3-6,1,12 : 2scl845(F,E) 09,10 :2sDi3o2(s,T) 0l9t 31-33 : 2sc2320(E,F) 028 ,35 , 36 40,54,55 :2sA933s(oIR) or 2sA733(A)(oIP) 0262sA9

39、92(F,E) o3o :2s0863(E,F) o47,48,50,5l :2sc3666 2sB772RIo,P) DTc l43TFF o58,59 :2sK246Y|6R) Dl : notestat qI Hzsl5NlB) o2-|1 | 26-46|6l-s+, g-zz : lssl33 or lssl76 0la-25 : DsMlAl D47i48 :,B3o-1ol2-o5 049-60 ,65-68 : B3o-043 l -o5 052 0 56, 57 TA77o5P oUT PUT ffi GND l DoaBn TD62554s 8A6251 FHA1 2088

40、NTAN78M1 8F (casei (x28-182o-1l)(A,/5 (x28-1820-|l) (B/5) -l .l820- jl)(A/5) ;,I 9 029 A- -l. ;l. UTd G = I- :J (X87-1l4o-ol) cNl2 J lcl,2 : 8A625lF Ic3 : M52laP_A Ql|2 :2sc2713 cNl ;!a s9 3 9 cP2 lrffii 47ht8lIrl*l*3l Vss cL2 Bo! 3 2 0oL3Y 2Xs Icx Ks VDD L .Cz cpl |- :!; o55 nlp l !: t isw I ed wit

41、h a hiqh impedance loadr;d at pIayback mode. due to variations between rnd Llnits. Bias circuit DC ile in the record mode. LeS tensions c.c. doivent tre mesures avec un vo|t- mtre haute ;mpdance, une cassette tant insre en mode du lecture. Les valeurs peuvent diffrer |gre- ment du fait des variation

42、s inhrentes aux appareils et aux instruments de mesure individuels. Les tensions c.c. du circu it de polarit doiVent tre mesures, lapparei| tant en mode denregistrement. r- I J Die angegeben GleichspannungSWerte Wurden bei eingesetZter Cassette in der Wiedergabe mit einem hochohmigen Spannungsmesser

43、 gemessen. Dabei schwanken die MeBwerte augrund von Unterschieden zwischen einzelnen Instrumenten oder Gerten u.u. geringfgig, Die angegeben Gleichspannungswerte der , Vormagnetisierungsschaltung wurden in der Auf- nah me-Betriebsart gemessen, CAUT|ON: For c ponents only Witl to parts list). reduce

44、thd risk of I l PLAYBACK AMPL|F|ER UN|T l c lTA7705P 2scl74os(O,R) or 2sc945(A)(o,P)DoLBY B/C NolSE REDUcTloN UN|T (W02-0693-o5) tct:HAl2066NT ,u r- - -l (x27-1560-1l1-22) Ic/4l l r- (UlM,UE)TYPE (x27-1560-1l,-22 r;-l I r-Fr l :l _ (X87-11ol4) 94 ,(X28_1820-1l) (c/5) !-l oeie- - -1 l | UJy |. ll-J 1

45、6.*T -l (x28-1820-1l) (D/5) CAUTlON: For continued safety, replace safety critical com- ponnts only with manuacturers recommended parts (refer to parts list, A tnair. saety citical components. To reduce th risk of electic shock, leakage-curent o resistance (x27-1560-1l,-22) Icl : AN78MI8F o1-3 :2scl

46、740s(O,R o4,5 :2sDl266O,P) 01-4 :DsMlAl D5 : w02- 5oo6L 06 : RDl6Es(82) or Hzsl6N(82) D7 : R06.8Es(82 or Hzs6.8N(82) D6-1o: lssl5 or lss176 ll:*3*;3 rl Ll#_l slGNAL LtiE RcoROlG LtNE - GiD LtE _ +8 LINE El PHOtEs K x -66cW (K) measurements shall be carried out (exPosed parts a accpta- bly insulated

47、fom the supply circuit) beore the appliance is retuned to the customer. !c l l 2 3 4 5 6 7 8 9 0 l 2 la 4 5 15 L7 18 19 202 KX-66CW ;p loRlslT -l : J l I rEE (x27-1560-1l,-22) A () c2?a - KENWooD EXPIODED V|EW (MEcHANlsM A) .y /r. I l - 7 7 -7 G , l4-), 09 l 9_- ,Y ,7-/ 7 -o H IE| FIlJrg 1,18l i , 5

48、E _U 9E a I, F-L l lo| l3E N F | M J | N /t $) 37 Parts with the exploded numbers larger than 700 are not supplied. KX_66CW o = E/ ,P, / , ,N / %, _ v X NeW Pants Pants Wlthout Parts No, are not supplled. Les artlcles non mentlonnes dans le Parts No. ne sont pas founnls. Telle ohne Parts No. Werden

49、nlcht gellefent. A A A A Ref. No. *ffi*+ Address fr,il fi Parts No. sfi*+ Descript ion s fi e/, :,| 2t3 ?D/1. lrJ4 ,e04 t:u-) aal t5 2oj r i,0 l)-.l t_I s 21.(:, ;117 L.:,) ,), -? ,1.a? c-LJ cd,) LJ LLJ F1 .,)o 23t 1 l.L LL, ;E -r: ,r -t:, ,t:, ,:,C Z, |F, 2 ,t 1: , lFj ,F 1F lG 1G 1r 16 ltr 1F E , fr , rj ;:-E *: *: :+. :+: :+. :+: :