Pioneer-DCX77Z-cs-sm电路图 维修手册.pdf

《Pioneer-DCX77Z-cs-sm电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Pioneer-DCX77Z-cs-sm电路图 维修手册.pdf（35页珍藏版）》请在收音机爱好者资料库上搜索。

1、o o o- r,6 1 E= t=FT;Tit F. |-T=T;T-TT : E 8flflfl8fl =Es-=E- /oE. ORDER NO. ARPl336 STEREO DOUBLE CASSETTE TAPE DECK AMPLIFIER DG-X772 change the primary wiring, please refer to page This service manual is applicable to the HB, HE and SD typ6s. As to th6 HE and SD types, please refer to pages 51. A

2、s to the othr typs, please refer to additional service manual. Ce manual dinstruction se refbr au mode de r6glage, en franqais. Este manual de servicio trata del m6tode ajuste escrito en espafrol. MODEL DC-X772 COMES IN FIVE VERSIONS DISTINGUISHED AS FOLLOWS: TyPePowea roquiromontExoon dostination H

3、BAC22OV. 24OV (swatchable)United Kingdom HEAC22OV. 2 4OV (swrrchable)*European Continent SDAC11OV, 12O-127V ,22OV ,24OV (switchabl) General market HE2AC22OV, 24Ov ( switchable) Wast Germany AC24OV onlyAustralia a a a a CONTENTS 1 . S P E C| F| C AT T O N S . . . . . . 2. EXPLODED VIEWS AND PARTS LIS

4、T .,. 3. MECHANICAL SECTION OPERATION OUTL IN E 4. SCHEMATIC DIAGRAM 5. P.C.BOARDS CONNECTION DIAGRAM. 6. ELECTRICAL PARTS LIST, 7, A D JU S T ME N T S . 7. REGLAGE 7. AJUSTE 8. PACKING 9. FOR HE AND SD TYPES 2 9 14 35 40 45 50 5l PIONEER ELECTRONIC CORPORATION 4-1. r,4esuro 1 chome, ryesuro,ku, Tok

5、yo ts3, Japan PIONEER ELECTRONICS SERVICE lNC. P O. Box 1760. Lono Eeach Ca orn a 90801 U S.A. PIONEER ELECTRONICS OF CANADA, lNC. 505 Cochrane dnve. N4arkham, Ontano L3R 688Canada TEL: 14161 479 4411 PIOIEER ELECTRONIC IEUFOPEI N.V. Keetberglaan 1.2740 Beveren, BelgrumTEL 03/775 28.A8 PIONEER ELECT

6、RONICS AUSTRALIA PTY. LTD. 178-184 Bo!ndarv Road. Braesrde. Vrctofla3195. Australia TEL: I03l 580-9911 SAC)fEB rc37 Prnled in apan RadioFans.CN 收音机爱 好者资料库 1. SPECTFTCATTONS Continuous Average Power Output is 27 Watts* per channel, min., at 8 ohms f rom 40 Hertz to 20,000 Hertz. with no more than 0.3

7、7 total harmonic distortion. Measured pursuant to the Federcl Ttade Commissions Trcde Regulation tules on Powet Output Claims fol Continuous Power Output 40 to 20,000 Hz . 27 W + 27 W (T.H.D.0.3% I ohms) 1 kHz (DlN) 33 W + 33 W (T.H.D. 1% 8 ohms) 1 kHz (DlN music power) 50 W + 50 W (T.H.D. 1% 8 ohms

8、) Graphic equalizer trequency band . 100 Hz, 330 Hz, 1 kHz, 3.3 kHz, 10 kHz, i7 dB Hum and Noise (lHF, short - circu ited, A network) PHONO . ._._._._ 72 dB Hum and Noise (DlN continuous Power/5o mW) PHONO . . 68 dB/60 dB Total Harmonic Distortion (40 Hz to 20,000 Hz, 8 ohms) 15 Walts per channel po

9、wer output . No more than o.20/o Tape Deck Section Systems . 4 track, 2-channel stereo Heads . Recording/playback head x 1 Playback head x 1 Erasing head x 1 Motor . DC servo 2 speed motor x 2 Wow and Flutter No more than 0.13% (WRMS) Fast Winding Time . Approzimately 105 seconds (C-60 tape) Frequen

10、cy Response -20 dB recording: Normal tape . 35 Hz to 14,00O Hz CrO, . . . . . 35 Hz to 15.000 Hz Signal to Noise Ratio Dolby NR OFF . 56 dB Noise Reduction Effect Dolby B lype NR ON . More than 10 dB (at 5 kHz) Furnished Parts Operating Instructions . 1 Turntable fegs parts .-. 2 M iscellaneous Powe

11、r requirements European model U. K. model AC 220 V, 50/60 Hz AC 240 V, 50/60 Hz AC 240 V, 50 HZAustralian model . . Other destrnation models AC 110/120-127l22O/240 V (switchable) 50/60 Hz Power Consumption European model . 210 W U.K. model . . 210W Other destination models . . . 210 W Dimensions 360

12、(W) x 190(H) x 283(D) mm 14-3l16(W) x 7-1t2H) x 11-1l8(D) in Weight (without package) . 6.8 kg (15 lb) Specilications and design subject to possible modtications with out notice due to impvement RadioFans.CN 收音机爱 好者资料库 Jllzl 2. EXPLODED VIEWS AND PARTS LIST 3 4 32 F. tt , .r tti N YNI 1 RadioFans.CN

13、 收音机爱 好者资料库 65 4 L A B c 44 D 65 4 i vt- i 1r%i qzA :-x noLi q Y ()i /J . 1 o)Z, t7 f0 44 4 B 2l I 4l- NO?XS: . Parts uithout port number conot be supplied o The -i, morh found on aome componet ports indicotet the importonce of the sofety factor of the port. Thercfore, when replocing, be urc to use

14、parts of identical desEnotaon. . Fot your Potts Stoch Control, the fast mouing items ate indicoted with the marks A * ond l , * CENERALLY MOVES FASTER THAN * This cld$ificatioa should be odiusted b! eoch distributot because it depends orr model nutnber, temperoture, humidity, etc. . Parts marked by

15、6 are not always kePt in sloclc Theil delivery lime mat be longer than usual or lhe! may be unavailable. Parts List Mark No. of Exterir Part No.DescriptionNo. Part No.Description A* 1 AWZI289 2 AWZ1309 3 AWZ1310 4 ATS1070 (Ars1065) 5 AEK-507 6 AEK-s10 7 AEK-s11 8 AAWl003 9 AMRI124 10 AXAl004 11 AAD1

16、003 1 2 A A D l 1 1 5 13 AAD1 1 16 14 AAE1038 15 AAE1039 16 AAE1040 17 AAEl041 18 AAEl042 19 AAE1043 20 AAE1044 21 AAE1045 22 AAK1190 23 AAK1191 24 AAK1192 25 AAK1 193 26 AAKl194 27 AAKl195 28 AAN 1035 29 AAN1036 30 AMBl 136 Main assembly Mechanism control assembly REC Amp assembly Power transformer

17、 l.11. C22OV /24OV) Fuse (FU1,T800mA) Fuse (FU3,T1.6A) Fuse (FU4, FUs, T2A) Counter Power joant Damper assembly Knob (POWER) Knob (FUNCTION) Knob (DOLBY NR) Knob (REC) Knob (PAUSE) Knob (FAST RWD) Knob (FAST FwD) Knob (PLAY) Knob (STOP/EJ ECT) Knob (SYNC) Knob (VOLUM E) Amp panel Door panel R Door p

18、anel L Deck panel A Deck panel B Door R Door L Front panel Bonnet cas e Fluorescent sheet Door spring R Door spring L Counter be lt Non slip Leg assembly Straan relief 41 BBZ30PO80FZK 42 VSZ30PO60FMC 43 VBZ30PO80FMC 44 VPZ30K)80FZK 45 VPZ30P?r OOFMC 46 BBT3OPOSOFMC 47 VMZ30PO60FMC 48 AEC-194 101 102

19、 103 104 105 106 107 108 109 1 1 0 1 1 1 1 1 2 1 1 3 114 1 1 5 1 1 6 Screw Screw Screw Screw Screw Screw Screw Nylon revet Chassis Rear panel Bottom plate SYNC shaft Keep plate P.C.B Holder P.C.B Support Heat sank Earth lead Cassette mechanism unrt Graphic EO assembly Switch assembly LED assembly Co

20、nnect assembly Cushaon rubber 32 33 34 35 ANElOO2 AAX1O54 A8H 1025 ABH1026 A A *t 36 AEB-31O 37 AEB1012 38 AEC-847 39 AEC-882 40 ADG-Os1 32 g7 L A B F 56 2l .t I .t 116 d ,. ,n_-/- - - I l , A 65 fl ,-fA J, ,/ -l6 L A 6 54 B c D 654 I Mechanism unit Mark No. Part No.Description MarkNo.Part No.Dscrip

21、tion 1 AZN1273 2 AZN127 4 3 AZ N! 241 4 AZN1275 5 AZN1276 6 AZN1277 7 AZN1278 8 AZN1279 9 AZN1280 10 AZN?t 281 1 1 AZN1282 12 AZN1242 13 AZN1243 14 AZN1244 15 AZNl245 16 AZNl246 17 AZN1247 18 AZNl248 l9 AZNl249 20 AZN1250 21 AZNl251 22 AZN1252 23 AZN1253 24 AZN1254 25 AZN1255 26 AZN1256 27 AZN1257 2

22、8 AZN1258 29 AZNl259 30 AZN1260 31 AZN1261 32 AZNI262 33 AZN1263 34 AZN1264 35 AZN1265 36 AZN1266 37 AZNl267 38 AZNl268 39 AZN1269 40 azN1270 41 AZN1271 42 AZN1272 43 AZNl283 44 AZN12A4 45 AZS1029 46 AZS1030 47 AZX1011 48 AZS1031 49 AZS1032 Pause arm AS arm Pack spring Stop lever FF lever REW lever

23、REC lever REW arm (S) Lock cam(A) assembly Capstan sh6ft Sensor cap Head base REC sensor ldler arm Lever base (Ai Lever base (B) Palse cam Clutch arm assembly (R) T reel assembly S reel FF gear Tape guide Eiect lever (F) Eject lever (W) ldler P roller arm assembly Belt Housing assembly Head chassis

24、spring Head spring ldler arm spring Auto arm spring Pause lever spring Lever spring (A) Cam spring Clutch arm spring Ejecr spring Back tension spring Lever spfing P roller arm spring Dubbing spring Flywheel assembly Leaf switch POWER) Leaf switch (PLAY MUTE) Leal switch (CrO2) Leaf switch REC) 50 AZ

25、X1012 51 AZPl012 52 AZP1013 53 AZB?I 06r 54 Az81062 55 AZB1063 56 AZB1064 57 AZB1065 58 AZB1066 59 AZB1067 60 AZ81068 61 AZB1069 62 AZe1070 63 AZB1 OT l 64 AdB107 2 65 AZB1073 66 AZB1074 67 AZ81075 68 AZ81076 69 AZB1077 70 AZB1078 71 ANG1 1 13 72 ANZ1359 73 AZB1 108 1 0 1 102 103 104 105 106 107 104

26、 109 1 1 0 1 1 1 1 1 2 1 1 3 114 1 1 5 1 7 1 8 1 9 20 Motor assembly RP head E head Screw (A) Screw (P) Sems Screw Tap tite screw Tap tite screw Binding scrow Washer head screw Screw (C) Tap tite screw Tap tite screw Tap tite screw Bush Polyslider washer Polyslider washer Polyslider washer Polyslide

27、r washer Polyslider washer Plain washer (L) Mech6 braket ldler arm assembly Tap tite screw Chassis W) assembly Head chassis Motor bracket (FW) Bution bracket (RF) Button bracket lLW) Bufion bracket (C) Flywheel weight Sub bracket SW bracket (F) Button shaft (W) Motor pulley lnsulator seat Dubbing Le

28、ver MD plate SW guard Nylon band 5P head wire assembly 3P head wire assembly 12P wire assembly 10P wire assembly Earth wire 121 122 a 3. MECHANICAL SECTION OPERATION OUTLINE Take-up The operation outline of this unit is as follows: l. Operation selection system . . . . . There is no power assist mec

29、hanism 2. Driving system. I motor belt drive 3. Head.Fixedhead 4. Auto-stop system. REC+PLAY and PLAY auto- stop 5. Operation system. . . . . Lever lock system 6. EJECT system. . . STOP-EJECT system The following will describe operations according to their respective modes. 3.1. STOP MODE The head c

30、hassis assembly and the respective operation levers come down to their specified positions and become into stop mode when the respective switches are OFF. 3.2. PLAY MODE (l) When PLAY lever is pressed. the lock cam moves to the left direction and the power supply switch is turned ON. At the same tim

31、e, the head chassis assembly which is linked to the play lever is pushed up to the specifred position with the head chassis spring and the PLAY muting switch being turned ON. In addition. the PLAY lever is locked with the lock cam. (2) At the same time, the head chassis. while rising pushes up the p

32、inch pressure contact spring within the pinch roller arm to pressure contact the pinch roller to the capstan and commences tape running (3) At the same time, the PLAY idler is also pushed up causing the take-up reel table to rotate and to begin take-up of tape and becomes into PLAY mode. Power suppl

33、y switch reel table seen PLAY idler front side of mechanism Capsta n Pinch roller arm Head chassis spnng PLAY muting SW PLAY lever Pinch pressure contact spflng Head chassis assemblv Head chassis assembly 3-3. PLAY-STOP OPERATION Mechanically, it operates in reverse of the afore- mentioned PLAY mode

34、. (See Figs. 3-l and 3-2.) (l) When STOP lever is pressed, the lock cam moves in the left direction and releases the PLAY lever. At the same time, the PLAY muting switch and power supply switch are turned OFF. (2) At the same time, the PLAY idler is pushed down while the head chassis comes down, and

35、 the takeup reel table stops as also the take.up of tape. (3) At the same time, release the pressure contact of the pinch roller and capstan by pushing up the pinch pressure contact spring and stop the tape running 3-4. PLAY-PAUSE mode-PAUSE release o PAUSE mode (l) When the PAUSE lever is pressed i

36、n PL,AY mode, the PAUSE lever pushes down the head chassis assembly (linked to pinch roller) which is linked to the PLAY idler and PAUSE arm. At the same timg the PLAY idler and pinch roller are pressed down And with PAUSE cam, it is locked at the PAUSE position and becomes into PAUSE mode. o PAUSE

37、position . Head comes down 1.7 mm at center value from the PLAY position . Pinch roller does not contact with the capstan . PLAY idler does not contact with the reel table, . Play muting switch and power supply switch are in ON mode. . Clearance of pinch roller : 1.7 mm at center . Clearance of play

38、 idler : 1.7 mm at center Fig. 3-2. PLAY mode diagram Left direction Right direction STOP lever Fig. 3-1. PLAY mode diagram (motor installing side) o PAUSE release (2) Nexg when the PAUSE lever is pressed again, the PAUSE cam is released in the movement reverse to (l). The PLAY idler and pinch rolle

39、r then return to the PLAY mode and tape running recommences. PAUSEcam AUSE lever (ldler and pinch roller) Solid line PLAY mode lt Dotted line PAUSE mode (ldler and pinch roller) PLAY/PAUSE mode diagram (a) (Motor installing side) PLAY idlerTake-up reel table Head chassis assembly ts (b) (Front side)

40、 PLAY-PAUSE-PAUSE release F ldler arm t Capsta n Pinchroller Fig. 3-3. 3.5. REC DETECTION OPERATION AND REC 1. REC detection operation REC sensor detects the existence or otherwise of erroneous erasure prevention claw of cassette half When there is claw, recording may be performed (REC lever can be

41、pressed) When there is no claw, recording cannot be performed (REC lever cannot be pressed) OPERATION 2. REG operation (Be sure to press REC tever and PLAY lever simultaneously) When REC lever is pressed. the REC switch is turned ON. The others are the same operation as pLAy mode and thereby tape ru

42、nning is started and becomes into REC mode. REC REC switch REC lever REC button ooeration diagram (Seen from rear of mechanism) Cassette r_-l / Il5ff Lever return sprins JB!,-Y ever -t I tij t_r r_l t 3-5. REC operation (REC t installing side) PAUSE lever Fig. 3-4. REC detection operation Fig. 3-6.

43、REC - PAUSE - PAUSE RELEASE Function same to the description in item 5 (PLAY - PAUSE - PAUSE RELEASE) except for the followings. (r) REC - PAUSE REC SW and PLAY SW keep REC condition. (2) PAUSE _ PAUSE RELEASE REC function starts again. 3.7. REC-STOP OPERATION (l) When STOP lever is pressed and the

44、locks of REC lever and PLAY lever are released the PLAY lever and REC lever are returned by the return spring and the REC switch and PLAY muting switch are turned OFF. (2) The other operations are the same as PLAY-STOP operation 3-8. FFIREW OPERATTON o FF operation (l) When the FF lever is pressed l

45、ock cam moves in left direction, the power supply switch is turned ON and is locked with the lock cam. (2) At the same time, the protrusion of clutch arm becomes in free state due to the shape of FF lever. F/R gear is moved by nearing it to the FF gear and engages the F/R gear with FF gear (reel gea

46、r). Then the reel begins to rotate and becomes into FF operation. o REW operation (l) Lock cam moves in the left direction when the REW lever is pressed the power supply switch is turned ON and is locked with the lock cam. (2) At the same time, when the REW arm (S), which is linked to the REW lever,

47、 pushes in to the left direction the protrusion of the clutch arm. Then the F/R gear is simultane-ously moved in the direction nearing the supply reel gear and engages the F/R gear with the supply reel gear. Then the reel begins to rotate and becomes into REW operation. Stop mode diagram clutch arm

48、spring F/R gear FF gear Reel sear Clutch arm clutch arm orotrusion Supply reel gear Power ) supply switch - Lock cam - _JL (a) STOP mode (b) REW REW lever mode agram / 1,0 ,. 1 C JHI -u !q-l itot I I !l(tJl?.1 ,R tk / 1 . r:t ? ttl -) E : E til r-5r .Y ti l F J - l( r ILJ FF FF lever (c) FF mode 3-6. FFlREW operation (Motor installing side) (Seen from rear of mechanism) REW mode diagr