《sony_ZS-M50_service_manual 维修电路图.pdf》由会员分享，可在线阅读，更多相关《sony_ZS-M50_service_manual 维修电路图.pdf（76页珍藏版）》请在收音机爱好者资料库上搜索。
1、Ver 1.1 1999.07 MICROFILM ZS-M50 SERVICE MANUAL PERSONAL MINIDISC SYSTEM SPECIFICATIONS AEP Model UK Model Tourist Model Model Name Using Similar MechanismNEW MD MD Mechanism TypeMDM-3Z Section Optical Pick-up TypeKMS-260A CD Model Name Using Similar MechanismCFD-S27 Section CD Mechanism TypeKSM-213
2、CDM Optical Pick-up TypeKSS-213C Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation. Continued on page 2 收音机爱好者资料库 Ra d i o Fa n s .CN 2 Specifications . 1 1.SERV
3、ICE NOTE. 3 2.GENERAL. 5 3.DISASSEMBLY 3-1. Cabinet (Front) Sub ASSY, Cabinet (Rear) Sub ASSY. 7 3-2. Control (L) Board. 8 3-3. Control (R) Board . 8 3-4. Control (F) Board, JOG Board. 8 3-5. BATT Board . 9 3-6. Power Board. 9 3-7. Tuner Board, Antenna SW Board . 9 3-8. Center Block Section . 10 3-9
4、. Cabinet (Upper), Chassis (Main) . 10 3-10.Optical Pick-up ASSY, CD Motor Board.11 3-11.Control SW Board.11 3-12.Motor Board, Belt, Motor (M703) .11 3-13.LCD Board, BL Board . 12 3-14.Audio Board . 12 3-15.Line Board. 13 3-16.Main Board . 13 3-17.MD Block ASSY. 14 3-18.DG Board . 14 3-19.Chassis (M
5、D) . 15 3-20.BD Board . 15 3-21.Sub Chassis ASSY, MD Mechanism Deck . 16 3-22.Shutter ASSY . 16 3-23.SW Board . 17 3-24.“Head, Over Write”, Slider ASSY . 17 3-25.MD Optical Pick-up Block . 18 4.TEST MODE 4-1. Caution When Using the Test Mode. 19 4-2. Test Mode Settings . 19 4-3. Releasing the Test M
6、ode. 19 4-4. Basic Operations of the Test Mode. 19 4-5. Selecting the Test Mode. 19 4-6. Functions of Other Buttons . 20 4-7. Test Mode Display. 20 TABLE OF CONTENTS 5.ADJUSTMENTS MD Section . 21 CD Section . 24 Display Section . 25 Tuner Section . 26 6.DIAGRAMS 6-1. Explanation of IC Terminals . 28
7、 6-2. Block Diagram (Main Section) . 35 6-3. Block Diagram (MD Section) . 39 6-4. Printed Wiring Boards Main Section . 43 6-5. Schematic Diagram Main Section (1/3) . 47 6-6. Schematic Diagram Main Section (2/3) . 51 6-7. Schematic Diagram Main Section (3/3) . 55 6-8. Printed Wiring Boards Audio Sect
8、ion . 58 6-9. Schematic Diagram Audio Section . 61 6-10.Schematic Diagram DG Section . 66 6-11.Printed Wiring Boards DG Section . 71 6-12.Printed Wiring Boards Tuner Section . 73 6-13.Schematic Diagram Tuner Section . 75 6-14.Schematic Diagram Control Section . 78 6-15.Printed Wiring Boards Control
9、Section . 81 6-16.Printed Wiring Boards BD Section . 83 6-17.Schematic Diagram BD Section . 85 7.EXPLODED VIEWS 7-1. Rear Cabinet Section . 95 7-2. Front Cabinet Section . 96 7-3. Center Block Section . 97 7-4. Upper Cabinet Section. 98 7-5. MD Section (1) . 99 7-6. MD Section (2) . 100 7-7. CD Opti
10、cal Pick-up Section . 101 8.ELECTRICAL PARTS LIST. 102 收音机爱好者资料库 Ra d i o Fa n s .CN 3 NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic l
11、oad, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The lase
12、r beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, when checking the laser diode emission, ob- serve more than 30 cm away from the objective lens. LASER DIODE AND FOCUS SEARCH OPERATION CHECK 1.Close
13、 the lid for CD. 2.Press CD fl button. 3.Confirm the laser diode emission while observing the objecting lens. When there is no emission, Auto Power Control circuit or Optical Pick-up is broken. Objective lens moves up and down once for the focus search. CAUTION DURING WHEN MOUNTING THE PULLEY FOR TH
14、E CD DOOR MOTOR (M703) Make the following adjustment when mounting the CD door motor (part number : 1-763-224-11) and motor pulley (part number : 2- 627-174-01) of the CD section. Specification : A = 0.9 to 1.1mm SECTION 1 SERVICE NOTE SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK
15、! OR DOTTED LINE WITH MARK !ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. Flexible Circuit Board Repairing Keep the temperature of the sol
16、dering iron around 270C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement Never reuse a disconnected chip component. Notice t
17、hat the minus side of a tantalum capacitor may be dam- aged by heat. CHUCK PLATE JIG ON REPAIRING On repairing CD section, playing a disc without the CD lid, use Chuck Plate Jig. Code number of Chuck Plate Jig : X-4918-255-1 收音机爱好者资料库 Ra d i o Fa n s .CN 4 ABOUT THE BD BOARD WAVEFORM CHECKING JIG Th
18、e special jig (J-2501-124-A) is highly convenient when check- ing the waveform of the BD board of the MD section. Pin names and items to check are as follows: I+3V : for IOP measurement (check for depleted optical pickup laser) IOP: for IOP measurement (check for depleted optical pickup laser) TEO :
19、 TRK error signal (traverse adjustment) VC: Standard level for checking signals RF: RF signal (jitter check) BD board CN110 DG board I + 3V IOP TEO VC RF Jig (J-2501-124-A) MD block section ABOUT THE HARDWARE RESET It is possible to reset the system microcomputer by pressing the RESET button located
20、 on the bottom with a pointed object. Use this button when the unit cannot be operated properly due to such problems as microcomputer errors, etc. RESET button (Located on the bottom) 5 SECTION 2 GENERAL LOCATION AND FUNCTION OF CONTROLS 1 MD operation buttons fl (play/pause) (stop) 2 BAND button 3
21、CD operation buttons fl (play/pause) (stop) 4 CD lid 5 6 CD OPEN/CLOSE button 6 6 MD EJECT button 7 MONO/ST, REPEAT button 8 AUTO PRESET/RDS/SHUF/PGM button 9 TUNE +, , ) button ! YES, ENTER button ! Jog dial =/+ AMS PRESET ! NO, CANCEL button ! TUNE , , 0 button ! EDIT button ! REC button ! REC IT
22、button TO TOP, TO END ! SYNCHRO REC CD ” MD button ! MD insert section ! LINE/LINE LEVEL button Display window VOLUME +, buttons BASS/TREBLE button MEGA BASS button Jog dial Function indicator AMS/PRESET SELECT LINE IN terminal DISPLAY button INSERT/TIMER button DELETE/CLOCK button 2 (Headphones) Ja
23、ck (stereo mini jack) # STANDBY button # SLEEP button # Remote control receiver section # OPERATE button FRONT PANEL: MD/CD/RADIO Section FRONT PANEL: TIMER, COM Section 6 REAR PANEL Section 1 TA SERCH button 2 CD OPEN/CLOSE button 3 Numeric buttons 4 MODE button 5 BASS/TREBLE +, buttons 6 MEGA BASS
24、 button 7 MD operation buttons ” (play) P (pause) p (stop) r (rec) 8 CD operation buttons ” (play) P (pause) p (stop) 9 RADIO operation buttons BAND TUNE , + ! OPERATE button ! VOL +, buttons ! =, + AMS, select, search buttons # MW/LW ANTENNA terminal # FM EXT ANTENNA terminal # FM rod antenna # AC
25、IN jack # Battery compartment (for memory back-up) # RESET button (bottom) $ FM ANTENNA SELECTOR switch REMOTE CONTROL Section OPERATE TA SEARCH 7 SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 3-1. CABINET (FRONT) SUB ASSY, CABINET (REAR) SUB ASSY r The
26、equipment can be removed using the following procedure. Cabinet (Front) sub ASSY Cabinet (Rear) sub ASSY Set Control (L) board Control (R) board Control (F) board, JOG board LCD board, BL board Audio board Main board Line board MD block ASSY Optical pick-up ASSY, CD motor board Control SW board Moto
27、r board, Belt, Motor (M703) Power board Tuner board, Anetenna SW board Center block section BATT board Chassis (Main) Cabinet (Upper) MD Block ASSYDG boardChassis (MD) BD board Sub chassis ASSYShutter ASSY MD mechanism deck MD Optical pick-up block SW board “Head, Over write” Slider ASSY 3 Screws (+
28、BV 3x14) Cabinet (Rear) sub ASSY 7 Wire , parallel (11 core) (Main board : CN407) 8 Lead wire (Lug, speaker section) 6 CN313 (5 Pin) (Main board ) Cabinet (Front) sub ASSY 3 Screws (+BV 3x14) 4 Screws (+BVTT 3x6) 2 5 1 8 3-2. CONTROL (L) BOARD 3-3. CONTROL (R) BOARD 3-4. CONTROL (F) BOARD, JOG BOARD
29、 1 Screws (+B 2.6x8) Cabinet (Front) sub ASSY Control (L) board 2 1 Screws (+B 2.6x8) Cabinet (Front) sub ASSY Control (R) board 2 1 Screws (+B 2.6x8) 3 Remove solder Cabinet (Front) sub ASSY Plate (JOG) , retainer 4 2 Control (F) board JOG board 9 3-5. BATT BOARD 3-7. TUNER BOARD, ANTENNA SW BOARD
30、3-6. POWER BOARD 1 Screws (+BV 3x20) Cabinet (Rear) sub ASSY Chassis, Transformer Power board Power transformer 2 Screws (+BV 3x10) 5 3 4 Screws (+BV 4x12) 1 Screws (+BV 3x14) Cabinet (Rear) sub ASSY Tuner board Antenna SW board Chassis (TU) 4 Screws (+BV 3x10) 2 Screw (+BV 3x10) 2 Screws (+BV 3x10)
31、 6 Screws (+BV 3x10) 3 5 Cabinet (Rear) sub ASSY BATT board 1 Screws (+BV 3x10) 2 Chassis, Transformer 10 3-8. CENTER BLOCK SECTION 3-9. CABINET (UPPER), CHASSIS (MAIN) 1 Screws (+BV 3x14) Cabinet (Rear) sub ASSY Center Block Section 2 Screws (+BV 3x12) 3 3 Claw 3 Claws Cabinet (Upper) 2 Wire , para
32、llel (16 core) (CD optical pick-up) 1 Wire , parallel (8 core) (Control sw board : CN550) Chassis (Main) 3 Claw 4 11 3-10. OPTICAL PICK-UP ASSY, CD MOTOR BOARD 3-11. CONTROL SW BOARD 3-12. MOTOR BOARD, BELT, MOTOR (M703) Cabinet (Upper) Control SW board 2 1 Screws (+B 2.6x8) Cabinet (Upper) CD Optic
33、al pick-up ASSY CD Motor board 2 4 1 Screws (+PWH 2.6x8) 3 Remove solder 1 Screws (+PWH 2.6x8) Cabinet (Upper) Motor boardChassis, Motor Motor (M703) (Door open/close) 2 5 1 Screws (+B 3x10) 6 Screws (+B 2.6x4) 4 Screws (+B 3x10) 3 Belt 12 3-13. LCD BOARD, BL BOARD 3-14. AUDIO BOARD Chassis (Main) L
34、CD board Holder LCD BL board 2 5 7 3 LCD Flexible board 1 Screws (+B 2.6x8) 6 Screw (+BV 3x10) 4 Screws (+B 2.6x4) Audio board 2 1 Screws (+BV 3x10) Chassis (Main) 13 3-16. MAIN BOARD 3-15. LINE BOARD Bottom Plate Bracket (Line) Line board Main board 2 4 1 Screws (+BV 3x10) 3 Screw (+BVTT 2.6x6) Cha
35、ssis (Main) Bottom Plate Bracket (HP) Main board 4 3 1 Screws (+PTPWH 2.6x5) 2 Screw (+BVTT 2.6x6) 1 Screw (+BVTT 2.6x6) 14 3-18. DG BOARD 3-17. MD BLOCK ASSY Chassis (Main) MD Block ASSY 3 1 Screws (+BVTP 2.6x8) 2 Screws (+BVTP 2.6x8) 1 Screws (+BVTP 2.6x8) 2 Screws (+BVTP 2.6x8) MD Block ASSY DG b
36、oard 4 Screw (+BVTP 2.6x8) 1 Screws (+BVTP 2.6x8) 4 Screws (+BVTP 2.6x8) 1 Screws (+BVTP 2.6x8) Case (Rear) , MD shield 3 Wire , parallel (29 core) 3 Wire , parallel (26 core) 3 Wire , parallel (19 core) 2 5 15 3-20. BD BOARD 3-19. CHASSIS (MD) Case (Upper) , MD shield Chassis (MD) Case (Lower) , MD
37、 shield MD Mechanism Block 1 Screws (+BVTP 2.6x8) 5 Screw (+BVTT 2x3) 5 Screws (+BVTT 2x3) 3 Screws (+BVTP 2.6x8) 1 Screws (+BVTP 2.6x8) 2 6 6 4 7 3 Screws (+BVTP 2.6x8) 3 Screws (+BVTP 2.6x8) BD board 3 Screw (+B 2x3) 1 Wire , parallel (15 core) 4 2 Head flexible Board 5 OP Relay flexible board MD
38、Mechanism Block 16 3-21. SUB CHASSIS ASSY, MD MECHANISM DECK 3-22. SHUTTER ASSY 1 Washer Sub chassis ASSY 3 Shutter ASSY Shutter ASSY 2 Shaft (shutter) Shaft (shutter) Shaft (lid) Hole A Hole B Insulators OK NG When mounting, make sure that A sets in the correct position. 2 A A A MD mechanism deck S
39、UB Chassis ASSY 1 Step screws Insulators 1 Step screws First mount the shaft (shutter) to hole A sets in the diagram, then mount the shaft (lid) to hole B 17 3-24. “ HEAD, OVER WRITE ”, SLIDER ASSY 3-23. SW BOARD 1 Claws 1 Claws 1 Claws 2 SW board MD mechanism deck 2 Screw (M1.7x6) 1 Screw (M1.7x2)
40、4 Screw (M1.7x2) 3 Head, Over write 7 Claw 7 Claw Slider ASSY 7 While removing the claw(2 locations), remove the slider assembly in direction of the arrow. 6 Position the gear shaft (L) as ahown in the diagram 5 Retainer (Gear) Retainer MD mechanism deck 18 3-25. MD OPTICAL PICK-UP BLOCK Mount the A of the lever (head up) so that it passes above the slider ASSY. Take caution as to not damage the detection switch r CAUTION DURING SLIDER ASSY ASSEMBLY OK NG A Slider ASSY MD mechanism deck MD Optical pick-up block Shaft (Main shaft) 1 Remove the lever 3 2 MD mechani
免费区 
