Pioneer-RT1050-tape-sm电路图维修手册.pdf

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1、 V SERVICE MANIIAL STEREO TAPE DECK FIT-1o50 FU t .-1 I l_ -t .i: 1 ,i+ . ;4. -J T ()rrroNEER RadioFans.CN 收音机爱好者资料库 -i- FIT-1 clEicl CONTENTS 1. SPEC|F|CAT|ONS .3 2. PARTSIDENTTFTCATTON. .5 3. DISASSEMBLY 3.1 BackCovers .8 3.2 SideBoards .8 3.3 AmplifierPanel . .8 3.4 Mechanical Panel . .I 3.5 Rep

2、lacingHeadAssembly. .9 4. TROUBLE.SHOOTINGCHART 4.1 Transport Mechanism and Control System (ll . . . . . .10 4.2 TransportMechanismandControlSystem (21 . . . . . . . . . . .11 4.3 ElectronicCircuitTrouble .13 5. MECHANICALADJUSTMENTS 5.1 Reel BaseHeightAdiustment .16 5.2 BrakeAdjustment .16 5.3 Take

3、-up Torque and Back Tension Adlustments . . . . .17 5.4 Pinch Roller Contact Pressure Adjustment . . . 19 6. TAPE HEADADJUSTMENTS 6.1 CoarseAdjustments .19 6.2 PlaybackHeadFineAdiustment .19 6.3 RecordHeadFineAdjustment .19 7, CIRCUIT ADJUSTMENTS 7,1Playback Lgvel Adjustmgnt r . . . . . . r . r . .

4、. . . . . . . . . . r . . . . .ZO 7.2 PlaybackEqualizerAdjustment .2O 7.3 BiasOscillatorAmplitudeAdjustment .21 7.4 Bias-trapAdjustment .21 7.5 RecordingBiasAdiustment. .21 7.6 EraseHeadDummyCoilAdjustment. .22 7.7 Level MeterAdjustment .22 7.8 RecordingLevel Adjustment .22 7.9 Recording-playback Fr

5、equency Response Adjustment . . . . .22 7.10 Peak Indicator Level Adjustment . . . . .29 LEVELDTAGRAMS .24 SCHEMATIC DIAGRAMS, P.C. BOARD PATTERNS AND PARTS LIST 9.1 Electro-partslist. .,.25 9.2 ConnectionDiagram(Amplifier) .27 9.3 SchematicDiagram(Amplifier) .29 9.4 ConnectionDiagram(Controll .31 9

6、.5 SchematicDiagram(Control) .31 9.6 PBAmplifierAssembly(RWF-023) .92 9.7 Fuse Board Assembly (RWX-046) . . . .97 8. 9. RadioFans.CN 收音机爱好者资料库 9.8 REC Amplifier Assembly (RWF-0211 . . . . .38 9.9 EO. SW Assembly (RWS-0211 . . . . .44 9.10 SW Circuit Assembly (RWS-017) . . . .46 9.11 ControlCircuitA

7、ssembly(RWG-0451 .50 9.12 Oscillator Assembly (RWA-013) . . . .54 9.13 OtherP.C.boards .58 10. EXPLODED VIEWS AND PARTS LIST 10.1 Exterior .59 10.2 AmplifierComponents .63 10.3 Take-upMechanism .66 1O.4 TapePathandCapstanMotor. .69 11. PACKING METHOD AND PARTS LIST . . .73 12. CIRCUIT DESCRIPTION 12

8、.1 Amplifiersection .75 12.2 Control Gircuit .76 13. SELECTIONOF LINEFREOUENCYANDVOLTAGE . .80 RadioFans.CN 收音机爱好者资料库 FlT-1 cIEiCl 9.4 CONNECTION DIAGRAM (CONTROL) 9.5 SCHEMATIC DIAGRAM (CCNTROL NOTE , I11 SUPPTY MOTOR Y2 TAKE-UP t10T0R l13 CAPSTAN M0T0R CR,gPo SPARK KTLLER SLI BRAI(E SOLENOID SL e

9、 BRAKE SCLEN0ID SLc PlNCll 5OLENOtD SLeor RESET SOLEN0tD h, S-ff:-lx .# -;:ffi.fr*E?=s*s Is3Kr3 120 Rzs+ i5 O tl. Foil side ll o loo FIT-I o50 w *8 v *x ,- dF h#o, o - o;? eo rtu*; qtffiffi-r*i$l s+ft *frff-. k ,: l -J* -Arr.,F S1 * ,; Jhx-pff?ZryS*l Qaor 6 o :gW c2, ;4, J-,ry ctFd ,s.FO :,- e.-rt ,

10、-A.1 v A *11rib:? CI I ,AV (r-1 5 oIAAo*6= s t8r il:( tq l4 co.lt .- ,r:i11t :i:l:i:i:r: iffi: I Rsoe lo.ox ,. i: Rror 100 x ; AA :, . Dsoz . Rsorl00K -.-, e.-*-o tno lgl ZU 1524?3VE Rsoz i0Ox f$,19. eryA E2l R505 l00K T .*1, .1 -, /Q I T -; o S o,g I g 5= *b8 - A .tr, I - VH lo 63 mt ffi,1g e El ;i

11、:,jr 1Offi ;:+ B,l ;r; 14 if,b.ll :i- 7:ffii O+* IO I! ,ilh -1 1 S24T 3VE +32 N OTES . S5-r - $5-6 ( J1t-l Jil-2 Srz CRso,- CRsoo TAPE SPEiD S,vu.3Bc.n/s ) I ENSiON SW ( HIGi-1T) PCNIR Sl rOFrl SPAR K KI LLER 3, * L- -ilI 1s2+73vE -Yv1- Rso3 lCOh d S.-, Rsos 100K 44 .1 C) a E I n C) g -l v) cn rn =C

12、U r f,t s cn 6 d v o N) a (.) () F F A (I) n ilut f lt E -l t o t 234567 0) r=ts Q.or-.0, zSCl344 0. C 23 ?4 2s tB IC3or,roJA?066P (ll) or (A )L3s1-16z 1N344 r- R tr.r 580 Rroi B2K 23.5V 2.2V(0vu ) 11 l B o rJ 3 10 13 ls 14 15 1t NOIF : Sr,52 t10NlT0F1 SW s3 xEtER scALi Sa INDtCAI0R SV! Sr,Sa RtC MO

13、DL SW VR,r,_roo XTIFR LEVEL 2.l (TAPF ) SW (+6dB) (REC) ( OFF ) I ICror 12.2V 12.9v 12V(0VU tA C! C) c! CJ -O (_) t(_ cr) cr) 4 CY vR3o1 6.BK 100/16; ca L) t) () OO ao ag -) c) ACJ (-) ta to= LN C) g J C.o . C) C = q-J VR:roz 6.8i.( (o a c) N6 (J co lo IE C) :? + N E 1B ct (, ct O Oa. C:f s = (J . U

14、 Lf) t. O - CI: r tlJ0l 41l35 ) ctl c! oa- rO Cl C) aJ ,*) (f)- ,f) !g I CL (! rjl co N- ft- LA 6- ;*5F-H ;t elH o sF r5 ot6 o29 ol7 gtr-1 ol lo ol : 4 t- T o VRror 6.BkiB, u*rrr?#, e0 I o vnros roK(B) |, o Aro vMp n; I :l ilif, - .,.,$i:g#: p*,: ; *ff *tils, &; t :g .,-, Sz It oo Sa 1t OO S+ It oo

15、Sg Ir oo Si .fP Jt oo Sz It oo T I I o u o A -l se .J J c) o z -l :D o r a n c) c = U) cn m =w r n o ! O F ? P Ctl O AL AC r I I De ,o w05 B Q 604 ?5A6128 R 561 0.4171W 26.5V(srOP) 2/+.5V ( Pt AY ) 25V (F.FtrjD) D eor 15 1849 Sa-z Sr-s L- 35V (ST0P) 28V (PtAY) 3lv (F,FttD) Qsoz ZSC1344 Dsoe v03c DEr

16、 SlB0l-02orRAl-Z NOTES Sra RFW Sw (0FF) Srr F. FVJD SW ( OFF ) Srs PLAY SW ( OFF ) Srs RtC SW (OFF) o.o1 / 1.4KU6Ol-6Or r 613-619 CRsoro+ SPARK Kl LLER E O s OF (.o5 c! o E= a E Ll- 3rt dj d. ir- =o ES oO a c2 P (J R5ea 1.5K .lD*ll *o O c) q? . gc -* t- io CY- W0682 d o -_-t (Y tr) c? c-.1 (-l d= (-

17、) 5 e - sv (srP) l gs.zv sT0 P ) vr,l -l3v (PLAY ) rlcE 3t .2V r PLAY ) L-3.2V(l FtlD) 1.32.?V(F FlD) R6o3 3.3 K /zW Flr-1 cl50 Foil side H#r qt; ,rr* 15 l *1 i: ui; I Io- I ,l ro !,26:-i13 +3 tiF +*=,ff $ # I tl;# ; ffi% dlgi: ffi+ 4#*+ i; ,Hu* ffi= i*if$piqryi l7 ,h 2SC7 89 25A67 2 2SC 1 344 51 ru

18、j_-T-l ll f-elor l( ) I l-1- c lE l lvl i:r-e lur rL L_J I l ff-t- e TJ I F=3 El so J N) o a I r r o n a a m = (p r n P c) J P tp ctt r aa !?r-o .J ti VR+or 15K (B) cae115oP f VR+oz1QK(B) li c+08 150P R+ro 4.ll( Cass 4l /n 1 LO (t N d ( O r-r) r- $ + LJ 39.5V(SrD = t_a) O- G: O- au ca C, o + O 1,3V

19、(STD ) o + d = N (-J . C-l r+ j 1.14V(STD ) 1.2V (Ll-lr) 1.2lv (L Fl2 ) co ) r: $ 22V (STD ,lV(LHr) ) t- + p (Y O tl) !- c. T (J : : + E tr- C) d + N (_) rr) O c- c,) + c9 (o O r- *J- 6) N+ (_) tr- =t- O (f n + () ) E.- + + x- O (! + L) Y (o r, I sl E- Lr) a O cr c-l rJ) N .- ,(-) D+0, (o O C-l c-.J

20、 (!$ (._) C.o : X! - L- n- (-) ) (! t Ci a +O o+ cv 11 12 13 14 15 15 1j r- 0.6v Rrqo 680 20v -= + o(Y Y .t (-) 0 o + (y. T E $ c2 6 s J n+or trS1850 D4o6 AWol-30 Raor2.lK z4 25 30 R+oz 2.lK - 10v Dqor -1 I rusr 44.1V ( ST0P) 43.2V (PLAY) 43.6V (F,FWD) 38.8V (REC) Q +os RLz-z o- O E- =j- N O f (.-)

21、-:_ E -J- .- o + -) r I I I IL O tr- + + E !-or.u,ro, I.4?V (PIAY) O rr) fl- , .j- I 6) + (.-) .T : o -r$ l-qt.zvtr. r l l-465V(REC) RLr-z l* -JL- NOTES; vR40r 402 REC BIAS VR+os OSC |NfENSITY FlT-1 cl50 EI ouu 0llI illti H cf) ( (J a N l-;-l lilfi L_l Lai o) (J a N 55 *rltt8 6 .if F k Rg RE Ng sE R

22、E ,9l0zz *-N- rStt= att*- E r|. E sf tr lO E ss rvs 6 str (o *o9 tr gelolv t1 N *;*1K q* tf) o ro E e9low *ff 5 st d F +L cJO erF d 0tb I E RE Ntr ntr RE 3 -cD +.D 6 o-l ro d0Lv I oJo oo oo o;o I E oo afDoxuuf) dd 3 * -d EP :E9E:Etr .N o = an o II 9.13 OTHER P.C. BOARDS Parts List of Shut-off Switch

23、 Board Assembly (RWX-047-0) SymbolDescription Part No. Spark killer RWX-030-0 Parts List of Motor Fuse Board Assembly (RWX-048-0) Parts List of REC Lamp Board Assembly(Rwx-049-0) Symbol Description Part No. Light-emitting diode TLR-103 RWX-048-0 Foil side RWX-047-0 RWX-049-0 SymbolDescriptionPart No

24、. Fuse holder Fuse 1A K91-006-0 RE K-021-O 58 I .t - d Ui 1 t PIONEEFI ELECTFIONIC COFIPGIFIATION 4-1, 1-Chome,Meguno, Meguno-ku, Tokyo 153, Japan U.S. PIGINEEFI ELECTFIONICS COFIOFIATION 178 Commence Road, Canlstadt, New Jensey O7O72 US A PIGINEEFI ELECTFIG,NIC IEUFICIPEI N.V. Mein-Centen, Mein 21 2OOO Antwenp, Belgium PIGINEEFI ELECTFIONICE AUSTFIALIA PTY LTO. 256-8 Crty Road, Soubh Melbounne, Victcj.ia 3205, Austalra O MAR. 1974 Printed in JaPan 1-