Tascam 3030 Tape Deck Service Manual 电路图.pdf

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1、w . =F- ( TASCAM TEAC Professional Division ., il./e WqHftT 3e k/D 62ap 71 / o.fu d, 4lP*a4 a/ -? -2,-a*e,:t Zilz n firc-t4* SERr/ICE iAANU L - 3030 Stereo Tape Deck z NOTES As regards the resistors and capacitors, refer to the circuit diagrams and the PCB assy drawings contained in this manual. * *

2、 Parts marked with * require longer delivery time. Resistor values are in ohms (k = 1,000 ohms, M = 1,000,000 ohms). All capacitor values are in microfarads (p = picofarads). A Parts marked with this sign are safety critical components. They must always be replaced with identical components - refer

3、to the TEAC Parts List and ensure exact replacement. 0 dB is referenced to lV in this manual unless otherwise specifi- ed. PC boards shown viewed from foil side. Parts not shown in the parts lists or parts, through listed, having no parts numbers are not general ready-to-supply parts. o dbx Noise Be

4、duction system made under license from dbx, lncorporated. The namedbx and the dbx symbol are trademarks of dbx, Incorporated. rif, i+-+al March. 1989 9301535704043400 RadioFans.CN 收音机爱 好者资料库 1 SPECIFICATIONS AND SERVICE DATA ,lx 2-track Z-channel erase, record, reproduce and 4-track 2-channel reprod

5、uce Dimensions 432 x 456 x 268 mm (17 x 11-5116 x l0-9/16) Weight net) 21 kg (46.5/16 lbs) ETECTBICAT CHARACTERISTICS Mic Input Input lmpedance 10 kohms, balanced Applicable Mic lmpedance 200 ohms or m0re Minimum Input Level -72 dBV (0.25 mV) Line Input Balanced/ Unbalanced Input lmpedance - I 0 koh

6、 ms/ 50 kohms Maximum Source lmpedance 2 kohms/10 kohms Nominal Input Level +4 dBm (1.23v|1-10 dBV 0.3 V Maximum Input Level +28 dBm (t9.5 V)/ +18 dBV (8.0 V) Line Output Balanced / U nbalanced 0utput lmpedanc,e 100 ohms/ 500 ohms Minimum Load lmpedance 600 ohms/3 kohms Nominal Load lmpedance 10 koh

7、ms/ l0 kohms Nominal Output Level +4 dBm (1.23 V)/-10 dBV (0.3 V) Maximum Output level +28 dBm (19.5 V)/+lB dBV (8.0 V) Headphone 0utput Level (where applicable) 50 mW max. into 8 ohms Bias Frequency 150 kHz Equalization 3,180 + 50 ps at 15 ips and 7.5 ips Operating Level 320 nWb/m or 250 nWb/m sar

8、itch ab le Power RequiremenB USA/CANAOA 120 V AC, 60 HZ U.K./AUSTRALTIA 240 V AC, 50 HZ EUR0PE 220 V AC. 50 Hz c Er EBAr EXP0 RT 1001 1 20 | 220t 240 V AC, 50/60 HZ Power Consumption 120 Watts TYPICAT PERFOBMANCE Frequency Besponse (Record/Beproduce) 40 Hz - 22 k1z 12 dB (0 VU,15 ips) 30 Hz - 20 kHz

9、 t2 dB (-10 VU, 7.5 ips) Total Harmonic Distortion (THD) 0.5%at0VU,1kHz Si gnal-to- ltloise Ratio ( overall ) ( R ef eren ced 3 %THD at 1 kHz) dbx-in 98 dB (NAB A Weighted) at l5 and 7.5 ios dBx-out 68 dB (NAB A Weighted) at l5 and 7.5 ips Adiacent Channel Crosstalk better than 55 dB (1 kHz) Erasure

10、 better than 70 dB 1 kHz. +10 VU) In these specifications,0 dBm is referenced t0 0.775 Volt. 0 dBV is referenced to 1.0 Volt. Actual voltage levels are also given in parentheses. Changes in specifications and features may be made without notice or obligation. dbx is a trademark of dbx Incorporated.

11、. J, A IXffi+ a 0 dBV t* 1.0v, 0 dBmtt0.775 v-+L t rrtd. Xlrytio)Jrb ( ) a L- t* ( AE -r 6a Xh6t) *t. - - q - RadioFans.CN 收音机爱 好者资料库 Tension arm guide roller:0.05mm to 0.3mm 0.1mm to 0.25mm (magnefloat type) 0.05mm to 0.3mm 0 (spring type) 0 (spring type) 2- 1 trl+r*Fz - 7l. ? t) 7. z. t -.yj u-F t

12、tzlL(tKffig) +1)7.5 .p I l-. : 0.r-0.2Snn(.t2l-tn-l-.t4i) h4tsD - ;0.05-0.3mm 7)z)=.7-L.h4 ts.D- | 0.05-0.3mm t) -.)v.t-t :0(7.jt) t.t4 ) 7)z)=.7-/ .0(7it,) t.t . )tt t-|J?t+)D lt4taH, ,H tl *r tr t* 7.- F1 tJ X t6t (j,v * 14ffi ti rhJ ) t- +ry dnrr6SAnEiE:+ 6. X. 2=2 4+/7t.-tO*. d tF, t5 A iffi E t

13、r -d r rg A t t *11,fi +F tt aryti. pinch roller Either the left or right should have a clearance of about 1.0mm. 7+?1mmiEE (t6Lbbh) Fig. 2-6 2.7 PINCH ROLLER PRESSURE MEASUREMENT tOTES: 1. The explanation below applies to both the left and right pinch rollers. 2. Both pinch roller pressures are aut

14、omatically set with equal value. l. Hold both the left and right tension arms in the upper positions using rubber bands, string etc. 2. Set the deck in either play mode with no tape loaded. 3. Attach the spring scale to the pinch roller as shown in the figure. 4. Draiv the pinch roller away from the

15、 capstan shaft (in the direc- tion of a line intersecting the centers of the capstan shaft and the pinch roller) until the capstan shaft and the pinch roller are se- parated. Return the scale back until the pinch roller just begins to turn. The scale should then be reading as follow. Reference value

16、: 1.35k9 to 1.9k9 (3.0 lbs to 4.2 lbs) lf the reading is out of specification, replace defective part(s). There are no adiustable parts. Fig.2-. 5. 6. raght capstan right t 2.8 TAPE TEIISIOil ADJUSTMENT TENTELO METER 2-8 7-7.72=# FF. REW SPEED R 150 TENTELO METER r lkw b- $ B PLAY, REW A PLAY, FF Fi

17、S,28 Tape tension measuring point3 il0TES l. Since these ssttings are precisely factory adiusted, in general, they should not be re-adjustsd. lf it is specifically required, a special metor is needed. Tentef o meter: Model T2-H20-1 or T2-H l5-UM. 2. To facilitate adjustment, the deck should be place

18、d in a vertical position. 3. For the rsels mounted on both left and right reel tables, use the same size ones. 4. Before all the following adlustments (2-8-1 - 2-84), perform next instructions in order to activate the relevant circuit. a.Thread the tape to lift up both tension/shut-0ff arms. b. s8t

19、the PowER switch to 0N. c. Lsave the deck as it is for 5 to l0 minutes. 2-8-1 ttrl PIAY M00E l. Place a reel loading TEAC YTT-8013 test tape 0n the left reel table and an empty rsel on the right reel table, then thread the tape. 2. Let the tape run in fast foruvard mode until both reels have nearly

20、the same tape winding diameter. 3. 0uring play with a LOW speed. measure tape tension at points A and B. 4. Adiust Rl22 and R222 so that the specified tape tension of 509 t l0g 11.4oz-2.102) is obtained. (0btain a 509 or l.8oz value as far as possible). (REW R255 (FFl R257 (PLAY) R122 IPLAYI R222 Fi

21、g.2-g Tape tension adiuster location .T tif; 1.7-J.- = .d.ifuft.t.61kAj = . )-9 h.L -rf J-5 (*tr1 , 7=)t/119P) = - )v T2-H20-IXttT2-H15-UM 2.iH|JEg -i Q+ U -)v,70+U -)D X1-,-tiEgt.k u HsrF!t.Ev t_dfi*d. 2-8-4 REWT!=EB* 1.ti-4lFtlat.) -)D(x71.) _)t )6Hf t, rREW=_ F t.d 4 (= t 4t6t*+t*t) -)vea,fElFf t

22、.ii,ifi f 5. 3. iiifi l* ?rr4*ttTt-. 2-l 6-l IzFIFf (i*E vlj, t*.zF) t.Fig.z-234F.H 2. r. v l- 4Uf ? )i,rv t- z v F qrff+E l. tr d 6 (v t-Assy) . -D t dF4,rv F. la l*i/-r, f lt-)-.y1.38# I . t*fi Fis.2-24 2.OUTPUT4Y7 : REPRO 3.TEAC YTT-1003- ). - 7. h. aPLAY-l-.tiiat, aooHzZ5ltE+.t6. +.F4zr.v l-r).y

23、 FIfl+yat1r*EdD, ,rv l- ElFrJT ) CtEtFd)+ltIFi, 4TB+.,y f-t)y t-H+Egrif -) ( rr 5 i t . 1.itfifi Fis.2-24 z.OUTPUT;4yf : REPRO 3.AMPEX 4567 zxPy I to, 400H2/ 10dBV(316mV) I=; | .Fj 43 t E i* r. S* F .y l- d) H l,F | ) fu E 4 e *.Hs:+. a cllt L CH2 altt.+tr*h 0 tllFl l-fa53 -7 t.? ffi#t6. (Fie.2-25)

24、. t*. . 7t.? tffi#?-tttffiet6fr6t (fifElL) ffi+t * I Fig.3-2 Headphone PCB adjustment points NOI tS : 1. Before perf0rtning adlustments and checks, clean and delnagnet ize the enti fe tape path. 2. In general, adjustntents and checks are done in the 0fder 0f Ci-1 then CH-2. Double RIF. Nos, indicate

25、 Cll-l/C|.l-2. (txample : R550/R950) 3.0dBV=1.0V 4. The AC v0l tI|leter used in the procedures |tlust have an i nput impedance of 1H-ohms 0r lll0re. LINE IN Fig. 3-4 Connection for PHONES level check it,a 1.7 7ffioffid,3fL(lr5gg*utJ cH-1/ cl|-2 tzrL*,f. 3.0 dBv = 1.0 v 4.WlEirlHHf bv)va+afi4 Yv-yvxt

26、J 1 HQ ttl Larattf.ffi L( ( t3 t,r. oscr LLoscoPE DECK under TEST AC Voltmeter TEST LOAD RESISTORS 15 $ 3-2 PLAYBACK PIRFORMANCI g.+ Test mode FIIV- lnitial deck settings 0UTPUT cont. : Scale position 7 OUTPUI sl : REPRO REF LEVTL sw : 250ntl Test tapes YTI- 1 004 YiT-1003 : 15 ips ) t-1/2 ips ) For

27、 38 cm/s ( for 19 cm/s ( And be sure lhat vhole frequency satisfy specificati0n with both speeds, 38 cl/s TF,ffiaw+ir xr,/rl uf,etj 1 I cm/s (.FiFEt6r, ), Ex U* l:*fi$gtlr.r-16 . $ $ f 3-3MONITOR PiRTORMANCi I Deck settings LIili cont. : OUTPUT c0nt, lll0 cont. sw I 0UTPUT sit Scale position 7 Sca l

28、e posi t ion 7 HIN ( unless other.lise specif ied +t.+AftCIbb8Ath ) INPUT I iiH ;ffiFE SIITING I INPUT SIGilAL -# E , xhEE ADJUST ffiHFf RESULI #EG REilARKS ffit 1. Playback head azimuth E/*ry F .7i?7 11 l-l Connection . FiS.2-24 t*ffi YTI- 1 003 ( 16kflz/-10d8) Aziluth screls 7r?3w y Phase ilffi wi

29、thin 45 4sIIFJ Refef to F is.2-21 - 2-?5 2. Play back level Nkvtv l-l AC voltlnetef to litC and PLAY PCB TP,O,I/ iP.11 and oND YTT- 1 003 ( 400|-|r/0dB ) 2I 4l R554/R954 R555/R9ss TP.01/TP.11 -6.8dBV (450mV) OUTPUT : -12.6d8V (230|v) 3. Frequency fesponse Htdffi+tt J- | Spec. PB condition ffiErF4ttE

30、 SPEED sv : L0l,l Ytr-1003 | zi , nssoznsso I (4ooru/lokltz) | at : nsstuRsst I 0UIPUT : Nearly equal output level (+1.5d8) at both frequencies. Then check frequency response. (Fis.3-6) ffiH6ofr)1nitrgL 6o1g7tt#LJt. Lf6. BiAS FINE -t*.h*ffi*fil3,qLf:Wofrfi ,arp73t8FlzJHtfl L -2. 5dB, +1. SdB t)llgYL

31、f 6ZL.*1-tv2t6. After checking, be sure t0 set BIAS FINE EAC|( t0 the center Dosition * ey ?l*, BrAS FINE 2r.4t+. tilECtFL(*i 1 kHz firr,(Ltaflft. Connection is same as in Fig.3-3, but engage l kHz filter. l kflz B.P.F. lFffi. Thc ryorst value should be within spec. :t ts r* 6 a |tt, i6H I A DB X*tE

32、 HfTd);iE45l*4iXi . z.*tEr,I +t tt (./lt)- R723/R724lominal level,S+v )v R753/R754RilS symmetryRMS 7 r/ l- rJ - IIECODER R627lR628YCA symmetryvca-t t-t)- R623/R624llominal levelz*Ev )v R653/R651RMS symmetryRMS.1 lt)- Fig.3-9 3-6-2VCA SYMMETBY AOJUSTMEITIT WAVE FORM VCA ittt)8#.iEY. Fig. 3-1O RMS sym

33、matry adjustment (incorrect) (RMSr./lrffilE.TF) Fig. 311 RMS symmetry adjustment (correct) (RMS./l.U-aEE.H) A J.A AtI LI / 1 IVI/V/lV 20 OECODER ADJUSTMETT ta-tgE. preset each of the trimmers of the decoder section on the PCB to their approximate center positions *YltlJl1iits;o;-i;. (Leiel variation

34、: 5 mV or less)TP.1ITP.2 Staircase waveform ffiiE Flg. J- lJ P603-1 /P6034 -8.2 dB (300 mV)* P6O1 -1 /P601 4 1 kAzl-8.2 dB (300 mV) Fig.3-14 4. Decoding level *,+va-rfig ffioftheencodersectiononthePCBtotheirapproximatecenterpositions. ?if $IEtEti,1 F) Ir./*6.r f ffi#. P703-1 /P703-5 niijtiurv straig

35、ht horizontal line on the ;tlpJ ii!;. tl6vet variation-q TY 9i:tl R727 1R728 TP.3/TP.4 Staircase wavelorm II*fEit P703-1 /P7035 -8.2 dB 3O0 mV)* P701-1 1P701 I 1 kzt-82 dB (3O0 mV) Frg. J- | / 10, Encoding level *.+v.=-?-(. +*frirrR6 Low drstortron AF OSCILLATOR EE+tE?* Distortion factor:0.O2ol or l

36、ess Output level:3V or more E*O.O2%UT H,3VL1I o P601 I (4) 2(3) TP.1(rP.2) TP.5(GND) OUTPUT FiS. 3-12 RMS symmetry adjustment setup (decoder) VCA SYMMETRY AOJUSTMENT WAVEFORM GENEBATOR OSCILLOSCOPE t/n7)-7 l;: h+lt SYMMETFY ADJUSTMENT WAVEFORM Fis. 3-13 VCA symmetry adiustment sstup (decod6r.l AC VO

37、LTMETER ACfEE+ Do not connecl to PCB CND. ttfid)GNO(:*fift L OSCILLOSCOPE t a 71-J 4DOiO ooo o tzn7=-a AC VOLTN,IETER ACTE;+ /o o o 22 Fig. 3-14 Decoding level adiustment setup (d6coder) 6 q a +) Low distortron AF OSCILLATOR rlui t l;:h+lt, SYMMETRY ADJUSTMENT WAVEFOFMVCA SYMMETRY ADJUSTMENT WAVEFOR

38、M GENERATOR FiS. 3-16 VCA symmetry adiustment setup (encoder) OSCILLOSCOPE 2la7a-a OSCILLOSCOPE ttr7)-J l t t Ljo not connect to PCB GND. *trfid)GNDt:*ft ooo ooo ,qr Fig.3-17 Decbding tevel adjustment setup (encoderl 23 3.7 IC BLOCK DIAGRAMS f ,r- I tra-a I LM6402H-325 EN O13 Ot, PGO.3 PFo-3 PLAO.7

39、PEo-J INT x lol Xlol f v oo Vss Ro GND LB147s G /+ + Plo-2 PHO-J PG O.3 PFo-r PLAOJT PEo-3 LM6405H-320 P0o-3 PC 0-3 PB o3 PAo-3 LC7800MC14584BCP FP+ rrT F E 3 5 ;Ao HO ; l,-l :- 15 l Do o- - ,l Ar o- = 6l Ul O- F, lx-l ; ,sr *t ;:d -l _ 4l At o- AI eril L3 e- _ tBl Drfi 4 Vpp oe Oe VoD: Pin 14 HD140

40、13BP I to t? SB HS tS QaQlCaRADASr Vss 25 4 EXPLODED VIEWS AND PARTS LIST +ffitriEti-Yt17Y EXPLODED VIEW-l _- b Y Y l u- I -,a v7 /t2, -/, 1l(l$ w 1.1 k4 I Il )38) g D N e s-l30, lx /4i rj 26 f a EXPLODED VIEW-I REF.NO. PARTS NO. DESCREPTION REMARKS t-l l-2 t-3 t-4 l- 5 t- 6 t- 7 t- 8 t- 9 t-t0 t-tl

41、 l-12 t-t3 t-t4 | -10 t -31 l-32 l-33 | -34 | -35 t-36 | -37 | =38 | -39 5504744000 *5200 | 16000 *5800551500 5800323400 *580t | 85400 58005 49900 *5800544700 5B0t t82200 50t4t75t00 5B0t tBl500 *580t | 84400 x5200t35910 *580 05 56 | 00 x55ll | 90000 *57800 | 4008 *5780 | J3006 *5 780 041008 *578 t7

42、E008 *578t 103008 *57Blt l4006 *5 780004020 *5785f | 50 00 *5781 123010 *578t7 t3010 TABLE ASSY,REEL COUNTER PCB ASSY CHASSIS,TAPE COUNTER SCREW, CAP HOUSING ASSY,HEAD ROLLER(S) ASSY,TENS I ON BASE(B),HOUSING CAP,PINCH ROLLER P I NCH ROLLER KNOB,SMALL SIZE PANEL ASSY,CONTROL CONTROL SW PCB ASSY CASE

43、, LB FOOT SCREW,BIND M4XB(NI ) SCREW, PAN SEN4S-A l41X6 SCREW,BIND SEMS-B N4XB SCREW,HEX. MX8(BLK NI ) SCREW,BIND TAPPI NG MXB SCREW,FLANGE M4X6(BLK NI ) SCREW.,B I ND N44X2O WASHER,PoL I S. 5XBX0.5T SCREW,BIND TAPPI NG N43XI O SCREW,HEX. I.4XIO(BLK NI ) Refer io pages 45 Refer to pages 4f , I a tUS

44、l:U.S.A. tEl:EUROPE tUKl:U.K. tCl:CANADA tJl:JApAN tA :AUSTRAL IA IGEI :GENERAL EXPORT INCLUDED ACCESORIES REF.NO. PARTS NO. DESCRIPTION REMARKS X57OOI IOOO OWNERS I4ANUAL IJ X57OOI IO4OO OWNARS MANUAL IEXCEPT x5144023200 CLAI4PER(B).REEL TZ-6t 3 x5032lOt tOo RUBBER,CUSiON *51 40002700 REEL,RE- 1004

45、 J a Parts marked with *require longer dellvery time. 27 3030 I EXPLODED VIEW.z 1 .)-i %l , )t ,w-l )p /6A tr .1 ,r4 Kr, ) | , r-.- .: $4 6*a lN1 ff L 2- l x5555667000 plRrr,iolnr 2- B X55O4729OOO ARM ASSY,PINCH ROLLER;R 2- 9 +55242t6000. spRtNG,piNcH nofirn;n 2-IO X5BOO5275OO BASE ASSY,CAPSTAN 2-I

46、I X55242I9OOO SPR I NG, SL I DE PLATE 2-12 x5534695000 WASHER;OtL RETAtNtNG ?-13 5504726t00 HousrNG ASSy;cApsrAN 2-t4 x5B0o526400 prnrE 455y,siioE- 2-15 x55551o4oOO TAPE,ADHESiV- 2-16 ,5341 |SOOO T4AGNATE,THRUST 2-17 x555566600O pLAte,nr t ruroncrrlrnr 2-18 *580t t9640o sHt ELD,MOTOR 2-19 x578672060

47、0 tNsuLocK T6oR 2-20 7IOO2IOO2 DC I4OTOR ASSY,CAPSTAN 2-2t x5122t72000 socKET,CONN. 5o5t_t0(wHT) 2-22 *5800tJBOOO plRrEtit,ftrnusi- z-23 *5 54 4ooiooo scnrw, erAn t Ne - 2-24 x55557O3OOO WASHER,THRUST 2-25 ,378302900 HEAD,P|AYBACK 4T 2CH ?-?g x580056840 | HEAD BASE,FWD. 2-27 x5Boo6225OO HEAD,DUI4MEY

48、 - 2-28 *5BOO5 54 I OO GU I DE, TAPE 2-29 X5BOO56B6OO CASE, SH I ELD 2-30 *5aoo5b4oot gnsriHeno 2-31 *5800566600 sHtELD pLATE,COUNTER ?-32 55o4i49ooo FLvwHEEL nsi- 2-33 5534690000 BELT,CAPSTAN 2T 2-34 5534693000 aelr,rrvwHrrl 2-35 5rTgloJroo urno,nacono it zcn ?-36 5378303200 HEAD,PLAYBACK 21 2cH 2-

49、37 I3TBJOt Ioo rrno,rnnsr zizcH 2-38 *5800622400 HEAD BASE,2r 2-39 x5B002B5joo sencen,rnAsE HEAD 2-50 *57BOI45006 SCREW,PAN SEMS-B N4JX6 2-5t x57B0l4lOoB scnrw,pnN Srlts_a M:xa 2-52 *5780tl4oto scnEw,pnru sEus_n pr+xro ?-53 x57B0lJ3OOB scnrw,ent srMs_R l4:xe 2-i4 *b7B0trJ006 scnrw,pnru iEpri_n prxo 2-55 *5780 I 34OOB SCREW, PAN SEMS-A M4XB 2-56 x5780t42006 scnrw,pnN SrMS_A MZXO 2-ii *57elor2oog scnew,enx s_rirE razxe 2-58 *57810rJooB