Pioneer-PL100-PL100X-Service-Manual (1)电路原理图.pdf

; EefticecUlanual STEREO TURNTABLE FL-lcIcI PL-IcIc|X (DrrroruEErl RadioFans.CN 收音机爱 好者资料库 MODEL PL-lOO COMES IN SEVEN VERSIONS DISTINGUISHED AS FOLLOWS: Type Voltage Remarks KUAC 120V only U.S.A. model (with cartridge) KUT AC 120V onlyU.S.A. model (without cartridge) KCTAC 120V only Canada model (without cartridge) WEAC220V -240V Europe model (with cartridge) WBAC220V -240V United kingdom model (with cartridgel WPAC220V -240V Oceania model (with cartridge) RAC 1 1 O-1 20 I 22O-24OV (switchabt e ) General export model (with cartridge) o This service manual is applicable to the PL-loo/wE, wB, wP, PL-100 x/wE, wB. For servicing of the other types, please refer to the additional service manuat. CONTENTS A 1. SPEC|F|CAT|ONS. 2. PANEL FACILITIES 3. DISASSEMBLY 3.1 Panel and Base Plate 3.2 Arm Base and Sub-Panel . . . . . 4. MECHANISM DESCRIPTION . . . 5. ADJUSTMENT 5.1 Auto-return Adjustment 5.2 F.G. Motor Adiustment 5.3 Arm-elevationAdjustment . 6. TROUBLE SHOOTING 6.1 Auto-return Does not Work . 6.2 Return is Fast (Return at lmm Pitch) . . . . . 7. PRECAUTIONS FOR REASSEMBLY 7.1 Areas That Require Lubrication 7.2 Precautions for Attachment of Parts and Reassembly . . 8. EXPLODED VIEWS 8.1 Exterior 8.2 Sub-panel SCHEMATIC DIAGRAM. P.C. BOARDS CONNECTION DIAGRAM AND PARTS LIST 9.1 Parts List 16 9.2 Schematic Diagram 17 9.3 P.C. Boards Connection Diagram 18 PACKING 19 3 3 12 15 9.4 5 6 8 8 8 I 1 0 1 0 1 1 10. .l RadioFans.CN 收音机爱 好者资料库 6 1. SPECIFICATIONS Motor and Turntable Drive System . Beltdrive M o t o r . . . . F c s e r v o m o t o r Turntable Platter . 31Omm diam. aluminum alloy diecast S p e e d s . . . . 3 3 - 1 / 3 a n d 4 5 r p m Speed Control Range. . . x2o/ Wow and Flutter . Less than O.O41yo (WRMSI Signal-to-Noise Ratio . More than 70dB (D|N-B) (with Pioneer cartridge model PC-l35) Tonearm Type . . Static-balance type, S-shaped pipe arm Effective Arm Length .221mm Overhang. .15.5mm Usable Cartridgeweight . . 4g (min.) to 99 (max.) Subfunctions Auto-return mechanism, Anti-skating force control, Stylus pressure direct-readout counterweight, Cueing device, Strobe light , Free stop hi nges Semiconductors t c . . . . . . . . 1 Transistor -. . . . . .1 D i o d e . . . . . . . . . 1 2. PANEL FACILITIES Platter/R ubber platter mat Speed checking window ) SPEED SELECTOR BUTTON 45 . . . . When this button is depressed, the platter will rotate at 45rpm. Depress for playing 45rpm records, singles or EPs. 33 . . . . When this button is set to the released position, the platter will rotate at 33-1/3rpm. Release for playing 33-1/3rpm records like LPs. SPCEO ADJUSTMENT KNOB Turn this knob when finely adjusting the speed of the platter. The speed of platter will increase when the knob is turned to the left in the direction of +; it will de- crease when turned to the right in the direction of -. PL-1 clcl Miscellaneous Power Bequirements: WE, WB, WP models . . . AC Z2O-24OV -, 5O,6OHz P o w e r C o n s u m p t i o n . . . . . . . 4 W D i m e n s i o n s . . . . . 4 2 O ( W ) x 9 6 ( H ) x 3 6 b ( D l m m 16-t l2(Wl x 3-13/16(H) x 14-3l8(Dl in. Weight 5.2kg/11 tb 8 oz PC-1 1 0/l I Specifications TYPe . .Moving magnet type Stylus . .0.5 mil diamond (PN-1 10/tt) Output Voltage . 3.5mV (1kHz, 50mm/s Peak velocity, LAT) Tracking Force . . 1.5g to 2.5g (proper 2.2g) Frequency Response . 15 to 25,OOOHz Recommended Load . . . Soks +1 70 - 3OOoF Accessories E P A d a p t e r . . . . . . . . . 1 Operating Instructions (French and German furnishedon model forWE) . . . . .l NOTE: Specifications and design subject to possibte modification without notice. due to improvements. Anti-skate knob ARM-ELEVATION LEVER UP (!): When this lever is set to this position, the tonearm will rise. Set it to UP before record play and when you want to stop record play while a track is being played or when you want to change over to a different track. DOWN (l ): When the lever is set to this position the tonearm will be lowered. lf it is set to DOWN for record play. the tonearm will be lowered onto the surface of the record. and play will begin. r 3 3. DISASSEMBLY 3.1 PANEL AND BASE PLATE 1. Undo the 4 screws O securing the insulator 2. Move the tonearm across to the center. raise the panel a little. 3. Disconnect the circuit board connector (2-Pin). Power assy 2-Pin connector case, and I Damper ruuber-f, Ftoat rpring-p (BLK) e Insutator case -) CI I o t l - I I (-=4 -v ,. )Y c-D R u I o g- v/ / )a (-) f, u I o J U B-rlort rpring P (VLT) G) fl o panel and base plate Float spring (GRE) Float spring (vLT) Remove the 4 Fig. 3-1 PL-1 clcl 3.2 ARM BASE AND SUB-PANEL 1. Undo the 5 screws O securing the arm base. 2. Undo the 2 screws O securing the sub-panel. 3. Undo the 3 screws O securing the center shaft. Tonearm assy A at. Fig.3-2 Remove the arm base and sub-panel /O 6-t-.: 1-.e- .(J (1 +- 4. MECHANISM DESCRIPTION PL-1OO MECHAN ISM OPERATI NG The PL-100 is equipped with auto-return only. Fig. a-t shows the PL-100 in the stationary state with the tonearm back in the arm rest. Fig. 4-1 Mechanical parts name * Start of Play 1. When the tonearm is moved across to the disc, the PU plate located below in the arm base is also moved. 2.Lever A is moved over by pin A connected to this PU plate, resulting in lever B being un- locked (Fig. -3). 3. At the same time that lever B is unlocked, the microswitch is turned on (power on), and the motor commences to rotate (Fig. -3). PU plate Pin B Fig. 4-3 Start of play * AUTO-RETURN DETECTION l.When the stylus nears the center shaft, pin B contacts plate A (Fig. A-q. 2. Plate A pushes plate C by an amount direcily proportional to the amount of movement of the tonearm (Fig. a-5). 3. Plate D atop plate C is moved toward gear B by the movement of plate C. Ei Gear A Lever B Lever A Pin A Fig.4-2 PU plate Pin B Fig.4-4 Auto-return detection 1 Plate C Fig.4-5 Auto-return detection 2 PL-1 Clcl 4. The front end of plate D moves approximately 0.1mm when the stylus is advanced 1mm toward the center shaft by one revolution of the record. 5. The tooth of gear B has the dimensional dif- ference shown in Fig. 4-6. 6. Plate D is pushed back by this dimensional difference at a stylus movement of within 1mm per revolution of the record. 7. When the stylus enters the lead-out groove in the record at the end of the performance, it is moved 4mm toward the center shaft by one revolution of the record. 8. The end of plate D contacts the protruding section of gear B (Fig. -7). 9. Gear B and gear A are engaged, and gear A is turned by rotation of the turntable. * AUTO-RETURN 1. Gear A and B are engaged each other by the auto-return detector and gear A consequently is turned in the counter-clockwise direction. 2.Plate B is then shifted across towards the tone- arm due to the groove in the underneath of gear A. 3. The edge of plate B pushes against lever C to force the arm elevation upwards. 4. Plate B continues to shift across to pushagainst pin B on the PU plate, thereby returning the tonearm back to the arm rest. 5. At this stage plate B commences to return to- ward the center shaft guided by the groove in gear A. Gear B fGearA Fig.4 Auto-return 1 6. When the edge of plate B separates from lever C, the arm elevation is lowered to drop the tonearm back into the arm rest. 7. And at the same time that the tonearm is returned to the arm rest, pin A returns lever A back to the stationary state. s A Plate D ( f i , Fig. 4-6 Auto-return detection 3 Fig.4-7 Auto-return detection 4 8. Plate B continues to move toward the center shaft and pushes against pin C on lever B. Lever B thus switches the microswitch off (power off), and is then locked by lever A, thereby bringing a complete operation cycle to an end. Fig. 4-9 Auto-return detection 2 5. ADJUSTMENT 5.1 AUTO.RETURN ADJUSTMENT 1. Turn the auto return adjustment screw full around clockwise. 2. Move the tonearm right across toward the center. 3. When the auto return adjustment screw is turned back a little at a time counter clockwise, the tonearm will commence to return to the outer circumference. 4. Stop tuming the adjustment screw once the stylus tip is 33mm away from the center shaft. 5. Once the above adjustment procedure has been completed check that the tonearm returns auto- matically as designed. 5.2 F.G. MOTOR ADJUSTMENT 1. Twn the power on and start the turntable plat- ter rotating. 2. Turn the speed adjustment knob around to the mechanically center position. 3. Adjust VR2 and VRB in the motor assembly so that the stroboscope appears to be stationary. Again this adjustment is performed from below. 4. Adjust VR2 for 33rpm speed, and VRB for 45rpm. 5.3 ARM-ELEVATION ADJUSTMENT To proceed with the elevation sheet height adjustment, insert the hexagonal wrench (for 3 mm) into the hole at the front of the EV sheet and rotate it clockwise to reduce the height and coun- ter-clockwise to increase the height. The height of the stylus tip from the record surface is 7 +2 mm. Fis. 5-2Motor adjustment Elevation sheet Fig. 5-1 Auto return adjustment Fig. 5-3 Armclevation adjustment PL-1 ctcl ( 6. TROUBLE SHOOTING Use the following directions to find the cause of each type of breakdown. Improperly adjusted units should be completely readjusted. 6-1 AUTO.RETURN DOES NOT WORK A ? t Procedure for Deating with ltem O After performing the return operation, if the curved section of the plate C and curved section of the plate D are not in contact with surfaces and respectively of the cam, reset will be incomplete and the starting position will be late. As a result, the return function may not operate at times. In this case, bend the plate C (Q so that dimension A is 0.5mm or larger. Gear A 0.5mm Fig. 1-6 Incomplete plate D and plate C. START Change in starting position adjust- ment. Plate D does not follow the plate C After starting, incomplete reset of the plate C. See O Too much grease between the plate C and the gear A. The curved section of the plate C is deformed. Inner diameter of the plate D bear- ing is small. The inner areas of records can not be tracked. Protrusions on the caulk of the plate D bearing. Arm lead wire is caught on some- thing. Not enough grease between the plate D and plate C. PU cord is touching the PU plate. Looseness in the PU plate attach- ment. PU plate is touching the leaf spring (plate D) Operation of the plate A is not smooth. 0.5mm 6.2 RETURN lS FAST (RETURN AT lmm PITCH) Protrusions on the pinion gear sec- tion. See Procedure for Dealing with ltem O If there are rough areas of plastic protruding from the section of the protruding section of the pinion gear, the return function may operate at a pitch of only lmm. In this case, remove the plastic protrusions completely (Fig. 6-2). Gear B (pinion gear) protruding section Fig. 6-2 Elimination of pinion gear protrusions. 7. PRECAUTIONS FOR REASSEMBLY Follow these directions and precautions when reassembling a unit after completing repairs. Be sure to lubricate as required, make no mistakes when attaching parts, and avoid all other careless mistakes that may be the cause of trouble later on. 7.1 AREAS THAT REoUIRE LUBRICATIoN NOTE: Types of lubricants and areas listed in table 1. where they are used are Table 1 Type of OilAreas used Silicon Oil t60000raising shaft GYA.OOSall other areas Lubrication points are specified for oils other than GYA-008. Never use a different type of oil. o Cam Section Apply oil to the heart-shaped grooved section (rear side of the cam) and lock plate sliding section in order to minimize wear on the sliding section and the burden on the mechanism. o Driving Plate Assembly Decrease the burden on the mechanism and the wear on the sliding section. sides, top, and bottom surfaces (sliding section of autotop sides surface mechanism) (sliding section of auto-stop mechanism) top and side (sliding section of autotop mechanism) EV cam side surface (sliding section of elevation cam) Fig.7-1 Driving panel assembly section Switch Locker Section 1 0 o Switch Locker Section Apply oil to the switch locker (opening) and sub-panel base sliding section to decrease the burden on the mechanism. When applying oil to the opening (shaft hole), do not apply any oil 2-3mm from the bottom surface. If oil is applied 2-Bmm within the bottom surface, it may come out the bottom and go between the switch lever and sub-panel base causing the switch lever to operate ineffectively. switch locker openrng Fig.7-2 Switch locker section o EV Lever Unit Section Apply oil to the sliding sections of leaf spring (A) and EV lever unit to decrease the burden on the mechanism. leaf spring (A) sliding section EV lever unit EV lever unit sliding section arm base Fig. 7-3 EV lever unit section ( o Elevation Cam Section Apply oil to the elevation cam and sliding sec- tion of the raising shaft to decrease the burden when operated. Fig. 7 -4 Elevation cam section r EV Sheet Section Apply oil to the raising shaft andsliding section of the bearing to assure stability in the elevation lowering speed. apply all around at a width of 1mm half of the grooved EV sheet assembly Fig. 7-5 EV sheet section 7.2 PRECAUTIONS FOR ATTACHMENT OF PARTS AND REASSEMBLY o Gam Assembly Attachment The cam assembly is attached by letting the lock plate go in the direction as shown in figure 1-6. Fig. 7-6 Cam assembly attachnent o PU Plate Attachment Push the PU plate into place so that the PU plate bearing section touches the revolution shaft attachment nut. Installation direction is as shown in figure 7-7. Note that there is a difference be- tween auto-retum and fully automatic models. PL-1 clcl Fig. 7-7 PU plate attachment o Anti-Skating Knob Attachment When installing the AS knob, put the AS knob rib against the AS knob revolution control stopper (attached to the arm base) and affix with the screw. As the stopper may break, be sure to press the AS knob down firmly when installing it. Fig. 7-8 AS knob attachment o Arm Base Attachment When attaching the arm base section to the mechanism section, put the mechanism section switch locker and switch lever in the locked posi tion and verify that the tonearm is in the arm rest location. Also be sure to put the manual elevation lever in the up position and check that the PU plate shaft is in the position shown in figure 7-9. a f a Switch lever Switch locker 7-9 Arm base attachment a driving Fig. 8. EXPLODED VIEWS 8.1 EXTERIOR Parts list Key No. Part No. Description NOTE: c Parts without part number cannot be supplied. o The A 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 identi- cal designation. Key No. Part No.Description 1. PNX-151 2. PAM-O68 3. PAM-O69 4. 5. PNX-051 6. 7. PAC-043 8. PAC-047 9. 10. 11. PNR-l40 12. KEB-004 13. PEB-150 14. PYY-071 15. 16. PEB-172 17. PBA-1 12 18. PBA-108 19. PBA-109 20. PPD-603 21 . PXA-792 22. PBA-9o5 23. PNX-1 52 24. PAC-045 25. PNX-054 2