Pioneer-CT730-tape-sm 电路图 维修手册.pdf

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1、C) rrloNeerl aa ORDER NO. ARP-I47-O STEREO CASSETTE TAPE DECK cT-73cI o This service manual is applicable to the KU, HE, HB, HP and D types, o Ce manuel dinstruction se refdre au mode de r6glage. en fangais. . Este manual de servicio trata del m6todo de ajuste escrito en espafrol. CONTENTS 14 to 18

2、1. SPECTF |CAT|ONS . 2. FRONT PANEL FACILITIES 3. BLOCK DIAGRAM 4. CIRCUIT DESCRIPTIONS 5. DISASSEMBLY . 6. PARTS LOCATION 7. EXPLODEO VIEWS AND PARTS LIST . . PICINEEFI ELECTFICINIC CCIFIPCIF|ATION a-r, Mesu.o 1 cho.ne. Mesu.o-ku, rokyo.1s3. Jape. PIC,NEEFI ELECTFIC,NICB IUAAI lNC. 1925 E. Dom,ngue

3、z St., Long Eeach. Ca ronnra 9OB1O U.S.A. PICNEEFI ELECTFICNIC IEUFICPEI N.v. Lu thagen Hsven 9, 2O3O Antwe.p, Betg,um FICNEEFI ELECTFIG,NICA AUATF|ALIA PTY. LTEI. 178-184 Boundanv Fload. E!.aesde, V,cto.r6 3195, Ausr.atia 8. E LECTRICAL PARTS LIST. 9. PACKING 10. P.C. BOARD CONNECTION DIAGRAM 11. S

4、CHEMATIC DIAGRAM 12. ADJUSTMENTS . REGLAGE AJUSTE . 25 z6 2S J5 37 44 51 MODELCT.T3OCOMES IN FIVE VERSIONS DISTINGUISHED AS FOLLOWS: Typ.VoltrgRemarka KU120V onlyU.S.A. model H E22OV and 24OV Switchablel Europe model HB22OV ad 24OV (Swirchable) United Kingdom model HP22OV a d 24OV (Switchable) Austr

5、alia model D12OV 22OV and 24OV (Switchable) Gengral export model YZ 4AY 1982 Prinred in Japan RadioFans.CN 收音机爱 好者资料库 1. SPECIFICATIONS systems compact cassette,2-channel stereo Heads .Hard Permalloy, recording/playback head x l Ferrite erasing head x 1 Motor . DC servo motor x 1 Wow and Flutter No

6、more than 0.0S% (WRMSI Fast Winding Time . Approximately 1OO seconds (C-60 tape) Frequency Response -20d8 recording: Normal tape 25 to IS,OOOHZ (35 to 14,000H2 t3dB) Chrome tape . 25 to 16,000H2 (35 to 15,000H2 13dB) Metal tape . 26 to 17,OooHz (35 to 16,000H2 r3dB) Signal-to-Noise Ratio Dolby NR OF

7、F . . . More than STdB Dolby NR ON More than 67dB (over SkHz) Harmonic Distortion No more than 1.2% (OdB) Input (Sensitivity/Maximum allowable input/lmpedance) MIC(L,Rl . . . . . . . 0.3mV/57mV/10kO,6mmdiam.jack (Reference MIC impedance; 25OO to 1OkOl LINEINPUT) .50mV/25Vl75k0 Output ( Reference tev

8、el/Load impedancel L I N E ( O U T P U T ) . . . . . . . . 4 S O m V / S O k a Subfunctions o Dotby NR system (ON/OFF) B type . 3 position tape selector (NORM/CrO, /METAL) o lC full logic control . Air damp eject function o Full automatic stop mechanism r REC muting function o Music search function

9、. Timer stand-by mechanism . One-touch recording system . LED level meter o Auto function svstem Miscellaneous Power Requirements KU model; AC 120V, 60Hz HE, HB, Hp modets; AC22OVl24OV (switchabtel,50/60H2 D modet; AC12OV l22OVl240V (switchabte). 50/6OHz Power Consumotion KU,HE,HB,HPmodets. .2SW Dmo

10、del .21W Dimensions . .420 (W) x 101 (Hl x 235 (D) mm 16-9/16 (W) x 4 (Hl x 9-t/4 (Dl in Weight(withoutpackage! . 4.2kg(9 lb4ozl Furnished Parts Operating instructions 1 Connection cord with pin plugg . . . 2 NOTES: 1. ReferenceTapes: Normal DIN 45507 g. Frequency Response: o Measured at -20d8 level

11、, DOLBy NR OFF, level deviation is r6dB without indication. 6. Signal to Noise Ratio: o Measured at the third harmonic distortion 3% level, weighted ( Dl N 4551 3/B LATTT). 7. Sensitivity: Input level (mV) required for reference recording level with input (REC) controls set to maximum. 8. Maximum Al

12、lowable Input: While decreasing settings of input (REC) level controls and increasing level at input jacks, this is the maximum input level (mV) at the point where recording amplifier output waveform becomes clipped. 9. Reference Output Level: Playback output level when meter indicates odB. NOTE: Sp

13、ecifications and the design subject to possible modificetions without notice due to improvements I 2 RadioFans.CN 收音机爱 好者资料库 2. FRONT PANEL FACILITIES r o POWER SWTTCH When this switch is depresed, the power is turned on and the level indicator !- lights. Depress the switch again to release it when

14、turning off the power to the deck. O The muting circuit is actuated after the POWER switch has been set to ON and there will be no operation for about 4 seconds. This is not a failure or malfunction. o When the POWER switch is set to the OFF position while the tape deck is operating, the decks opera

15、tion is released and the stop mode is established. )TIMER START SWITCH This switch is used when an optional audio timer is employed for unattended recording or wake-up playback operations. Keep this switch at the OFF position when the timer is not being used. REC : Set to this position to set the ta

16、pe deck automatically to the recording mode at the time preset on the audio timer and to start the recording of programs unattended, for instance. OFF : For when the timer is not being used. PLAY : Set to this position to set the tape deck automatically to the playback mode at the time preset on the

17、 audio timer and to start the playback. The tape playback function can be used to wake-up in the morning instead of an alarm clock. For detailed instructions on the use of this function, refer to RECORDING AND PLAYBACK USING THE AUDIO TTMER on page10. oEJECT BUTTON Depress this button to open the ca

18、ssette holder. To close the cassette holeer, push the top back until it locks. o Do not press this button when the tape is in motion. cesserrE DooR oTAPE COUNTER This counter shows the position of the tape using a three-digit meter. coururEn REsET BUTToN Depress this button to reset the tape counter

19、 display to 000. ) LEVEL INDICATOR These indicate the input level during recording and the output level during playback. p-t tNDlcAToR This indicator lights during the playback or recording mode. When the PAUSE switch is depressed and the PLAY/PAUSE or REC/ PAUSE mode is established, the indicator g

20、oes off. I m (Music Search) INDICATOR This indicator lights while the music search switch is kept in the depressed position. ruusrc SEARcH swrrcH When this switch is depressed and the FF or lFFl : Depress this switch to send the tape forward at high speed (The tape will travel from left to right). I

21、REWI : Depress this switch to rewind the tape at high speed (The tape will travel from right to left). - (STOPI : Oepress this switch to stop the tape travel and to release the operating switches. rt DOLBY NR SWTTCH Depress this switch to ON for recording with the built-in Dolby Noise Reduction syst

22、em and for playback of tapes which have been recordad using the Dolby Noise Reduction system. For other taps. do not press this switch. rnee sELEcr swtrcHEs This selector allows the bias and equalizer characteristics to be selected during recording and equalizer characteristics during playback in li

23、ne with the type of tape you are using. Normal tapo : Release the bottom switch to the ,out,. position ( I N O R M . Chrom tape : Depress the bottom switch to the ,.in, position ( - HIGH) and release the top switch to the out Position ( r CrOz ). Metal tape : Depress both the top and bottom switches

24、 to the in positions. (E) REC LEVEL coNTRoL Use this to adjust the level of the input signals from the MIC jacks or rear panel LINE-lNPUT. Turning the control to the clockwise increase the level. (D REC SWTTCH Depress this switch to start tape recording. This switch will not work when a cassette is

25、not loaded or when the erasure prevention tabs of a loaded cassette have been broken off. When this switch is depressed to th ON position, the REC and lpLA? indicators will be illuminated. (D REC MUTE SWTTCH Depressing this switch during recording makes it possible to create an unrecorded blank on t

26、he cassette tape only for the time during which the switch is kept depressed. This switch is used for providing blanks of the required length between programs and editing tapes so that they are easier to listen to and for creating the unrecorded blanks which are required for operating the MUSIC SEAR

27、CH facility. o No signal are recorded when the switch is touched during recording. Do not touch the switch unless necessary. o REC MUTE (O ) is display only but does not illuminate. (D PAUSE SWITCH Depress this switch to stop the tape temporarily during recording or playback. Depress this switch aga

28、in to allow the tape to con- tinue to travel. When this switch is depressed to the ON position, the ll (PAUSE) indicator will be illuminated. . The tape does not stop during fast forward or rewind opera- tions even when the PAUSE switch is depressed. Mtc JAcKs These are the input jacks for microphon

29、e recording. plug the left channel microphone into the L jack and the right channel micro- phone into the R iack. The word Dolby and D0 are trdemark of Dolby Laboratories Licensing Corporation. Noise Reduction System manufactured under license from Dobly Laboratories Licensing Corporation. DOLBY NOI

30、SE REDUCTION SYSTEM The tape hiss (noise in the high-frequency region) which is in- herent to cassette tapes and which is heard when sound recorded onto a tape is played back has always been annoying. This is particularly the case when, for instance. during an orches- tral piece high-rangp pianissim

31、o sections such as those created by violins are heard. The Dolby noise reduction system was devoloped to rduce this noise. lt functions when the midrange and treble parts where the tape hiss is noticeable are lower than the fixed level by recording these parts at a higher level then the normal recor

32、ding level. During playback. however. the level is reduced by an amount equivalent to its increse during playback. o The DOLBY NR switch should always be set to ON when play- ing back a tape which was recorded using the Dolby noise re- duction system. The high frequency sound will not be heard prope

33、rly when a tape which was no recorded using the Dolby system is played back with the DOLBY NR switch at ON. 3. BLOCK DIAGRAM LINE I NPUT REC/PB Head r FLAT AMP t_ 20 d8 _l CONTROL CIRCUIT VR3OI EOUALIZER AMP Function Switch s i l o l BIAS CIRCUIT MPX FILTER 6b * Qeog 5 2 0 d B DOLBY NR CIRCUIT R c h

34、 P L A Y + B n LINE OUTPUT ) N sr02 - | )FF a Dsrg + Bt (t2.3V) + 82 ( il.5v) +B3 ( tO.8V) +84 ( 5V) LINE _ MIC ON _ OFF lvoRM - HrGt CTOA - METAL oN - q! O N - O F F o N - o l l 5604: PLAY s605: PAUSE 5606: REC 5607: REC MUTE s608: MUS|C SEARCH (MS) s90l I TttrER Srool : PowER Q to8 O N - O F F O N

35、 _ O F F ON _ OFF O N - O F F ON - OFF R E C - O F F - P L A Y ON - OFF StlOl r ERASE PREVEIIT OECTOR HOLE -N9_r9!E Thc undcrlrncd irdicatd thc sitch polrton. .r 1 SWITCHES: SlOl I INPUT SELECTOR S I 0 2 : D O L B Y N R SIO3 . TAPE SELECOR SlO4 : TAPE SELECIOR st I FF 5602 : REw s 6 0 3 : s T o P ,

36、IC60l Pin REC AMP POWER SUPPLY METER CIRCUIT 1 20V 60Hz 22Ovl24OV 50/60H2 120V 1220V 1240V 50/60H KU: HE, HB, HP : D : Auto Function xt$_L f,uerar -n | l -dl L-tA t REC/PB head Erase head s90 | PLAY O F F -J pg6 s607 REC MUTE r c 6 0 r P M 9 O O 2 A PA USE A R REC REC pt-Ay REc STOP PALSE R E W B I

37、A S osc F F M S TIMER REC MUTE S I G N A L M S PrNcH tiUF, REw 11 KU type RTI-286l22OVl24OV; HE, HB, HP types) RTf -2AA l12OV l22OV /240V, D type) Main assembly RWX-625 KU, D types RWX-626 lHE. HB, HP types) Motor assembly RXM-076 A* Power swirch i-J Capstan belt R E8411 Plunger solenoid F RXP.117 (

38、RXp-l14, I KU tYPe iiir_l -r I HE, HB, HP, D types RSA-055 (KU typl RSA-O47 (HE, HB, HP typesl RSA-Os7 (D type) A * Plunger solnoid R ffil,t,tu, r * * |f;lit, , HE, HB. HP. D tvpes Rear Panel View Terminal (LlNEl RK8-Ot 8 Foot assembly REC-369 3.s0jack R KN-071 R DG-022 (RDG-030) RDG-036 RDG,O32 RDC

39、-O29 R DG.O39 ) KU typ HE type HB type HP type D type 7. EXPLODED VIEWS AND PARTS LIST NOTES: o Parts without part number cannot be supplied. o The S marh found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of ident

40、ical designation. o For your Parts Stoch Control, the fast moving items are indicated with the marks * and *. * GENERALLY MOVES FASTER THAN *. This classification shall be adjusted by each distributor because it depends on model number, temperature, humidity, etc. Symbol 22OV l24OV, HE, HB, HP types

41、) Line voltage selector (switchable 3 positions; 12OV l22OV l24OV , D type ) 81 VCZ30P080FMC 82. VBZ30P080FMC 83. PMZ30P060FMC 84-1 REK-064 84-2 REK-O48 Schrew (HE, HB, HP types) Screw (HE, HB, Hp types) Screw Fuse 80OmA (HE, HB, HP rypes) Fuse 0.5A (D type) A* A* 52-2 54-2 32J A 1 Exterior (For KU

42、type) h.?1 N B t3 14k J fl 8ffi1 -qUe-ss ffi,- -1 . 4Z-79 B r = - , d?tr.rj;S+:1*.-,K1fl;h5t-=Y :- et+e=,h. 1 ;Itr;rj#+: :.: |;t,1 :;: i:t: I-= :* :- i o : :;:) i H=|F.ss:.,.n ,ff =:Fr,l +* ti -E/L$,;*r : : l.u,irl *t| . -. r ,rl,l,-:l: .5 r1r:e? itrAh*: # rffi#ii i,f + *tril,f# *ri* ; 5i 5; #-:E:s;

43、 I, - *d+ j#W;il#* ;4 ; - * .ffi-l 1 7 c 2 n . r . t : , . : - . -il1 ;? ; .: I ;u!.f ;.,; ;l ; ;*-:-: 33/50 of MBaao56Bn rr3-k I Li/5r. riJi+dieo ;:; i0./r6 F3r?22N : . 4 r z r , c r 6 0 o 0 o r r D , a o b b o I o , s a 4 5 i e o r a 6 4 ? o o u r a . -5|! olr 1000! Rrzr r2l ,F MtL - 65 4 I t? lt$

44、l,f a t a 2 I8 7 l cro0 | 0.0rlac250 METER A: . J lCONTROL Ass! sLr sL2 SL3 SL4 FF REW PINCH MS sol. soL. soL. soL. I87 L 121110 A B c sr t0r ERASE PREVEII DETECTOR SENSOR Assy D TIMER SWITCH Ass! t_ METER Assty 1112 1 32 11. SCHEMATIC DIAGRAM - LINE K Cn tNpUT 60 Hr RoG -O22 | .h L|NE INPUT ICIOI B

45、A32a sror: riPur sllrcroR Mrc aMp nxiloii | uorra o*,frrall fJn L- MAIN A3sY ( l,/2 ) !ror,20r f, Lto2,202 t 1r04.204 F cSrl to/t6 R532 2.2r A IC1O2 qio5, 2O5 TC4055aP 2SCi740LN or M864O668M o.2SCtOtg or HOi4O66B or 2SC2O2| swrrcHtNc or 2SC2634C FLAT AMP B REC /P,A HEAO 50 I ERASE 2. I BEAo /-x- t p

46、 - I w I na -oes U:T:9-o- c rool 2030r wz-135 20302 wz-120 20305 Bz-o50 c3r3 Q3O3,3O8,311 2SA 9 37 or 2SA933LN or 25A1Ol 5 or 2SAl l27NC D Q3Ol,3O2 2SDA37 or 2501O31 REGULATOF O3O5,306,315 D3O7-3O9 1SR35-1OO 152473 or USTO4O or WO38 or WO3C 321 654 MAIN AssY ( i/2 ) L r o r , 2 o r R T F - 0 8 4 r 3

47、 0 r R r D - o 2 6 Lr02,202 RTF-O95 Lr04,204 RTF-069 Cr36,236 RCA-O54 LlOr RTF-057 lc402 TC 4066 6P or M4840668M or HDr40668 D4O1,4O2 1K34A orlK6OAor OA9O D4Olt4O4 152473 or USiO4O rc403 NJM455g0 or 844558 or aN 5552 REC AMP tc40l HAt1226 DOLAY NR LEVEL ADJ Q105,107, tog Q2O6,2O7,2OA 25C1740LN- R or

48、 2SC1ar5-Y or 25C2021-R or 2SC2634ilC-R r 3 0 : Qto5, 205 2SCr 740 LN or 2SCt8t5 or 2SC202l or 2SC2634NC SWITCH I NG L80602 9G572, D605 - 6O: 1s2473 or uslo4r f: I l- ii q3o3,3O8,3rl 2SA I 37 or 23A933LN or 2SAlOl 5 or 2SAl l27NC A; 654 6r-le6-rrc-xatl Q1O7,108,207,2OA MUTING R2a6 c2ta! Faag l%i=-,j

49、 ( R E C - O N ) Q307 c3ro 2SCl74OLil o. 2SC10t5 loo/f6 or 2SC2O21 or 2SC2634NC D3ll ! 314 F524 152473 22 or Uslo4o q3o4-306 2SCr74OLi/ q3O6 SWITCHING (REC *ON I M U T I N G QJrr c30f, o-22/so vR3or,3o2 : ,$Te ;-; ;* -; !; lo3- ;:. tm-l FUNCTION i Measurement point Playback signal route - Recording signal route o701 GP-411 a _-_-J SENSOR