sony_ZS-M35_service_manual 维修电路图.pdf

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1、 1 ZS-M35 SERVICE MANUAL PERSONAL MINIDISC SYSTEM AEP Model UK Model Tourist Model CD Model Name Using Similar MechanismZS-M50 Section CD Mechanism TypeKSM-213CDM Optical Pick-up NameKSS-213C MD Model Name Using Similar MechanismPMC-MD55 Section MD Mechanism TypeMDM-5GA Base Unit NameMBU-5A Optical

2、Pick-up NameKMS-260B U.S. and foreign patents licensed from Dolby Laboratories Licensing Corporation. CD player section System Compact disc digital audio system Laser diode properties Material: GaAlAs Wave length: 785 nm Emission duration: Continuous Laser output: Less than 44.6 W (This output is th

3、e value measured at a distance of about 200 mm from the objective lens surface on the optical pick-up block with 7 mm aperture.) Spindle speed 200 r/min (rpm) to 500 r/min (rpm) (CLV) Number of programme positions 2 Frequency response 20 - 20,000 Hz +1/2 dB Wow and flutter Below measurable limit Rad

4、io section Frequency range FM: 87.5 - 108 MHz MW:531 - 1,602 kHz LW: 153 - 279 kHz IF FM: 10.7 MHz MW/LW: 450 kHz Aerials FM: Telescopic aerial External aerial terminal MW/LW: External aerial terminals SPECIFICATIONS MD player section System Minidisc digital audio system Disc MiniDisc Laser diode pr

5、operties Material: GaAlAs Wave length: 785 nm Emission duration: Continuous Laser output: Less than 44.6 W (This output is the value measured at a distance of about 200 mm from the objective lens surface on the optical pick-up block with 7 mm aperture.) Recording/playback time Stereo recording: Maxi

6、mum 80 minutes (with MDW-80) Monaural recording: Maximum 160 minutes (with MDW-80) Revolutions 400 rpm to 900 rpm (CLV) Error correction Advanced Cross Interleave Reed Solomon Code (ACIRC) Sampling frequency 44.1 kHz Continued on next page Photo: black Ver 1.3 2001.07 Sony Corporation Personal Audio

7、 Company Shinagawa Tec Service Manual Production Group 9-927-183-13 2001G0400-1 2001.7 收音机爱好者资料库 Ra d i o Fa n s .CN 2 Coding Adaptive TRansform Acoustic Coding (ATRAC) Modulation system EFM (Eight-to-Fourteen Modulation) Number of programme positions 2 stereo programme positions Frequency response

8、20 - 20,000 Hz +1/2 dB Signal-to-noise ratio Over 80 dB (during playback) Wow and flutter Below measurable limit General Speaker Full-range: 8 cm (3 in.) dia.,4 ohms, cone type (2) Inputs LINE IN (stereo minijack):Sensitivity 436 mV/ 870 mV Outputs Headphones jack (stereo minijack) (1): For 32 ohms

9、impedance headphones Maximum power output 5 W + 5 W Power requirements For personal minidisc system: 230 V AC, 50 Hz For back-up memory: 4.5 V DC, 3 R6 (size AA) batteries For remote control: 3 V DC, 2 R6 (size AA) batteries Power consumption 24 W Dimensions (incl.projecting parts) approx. 498.5 173

10、.5 227 mm (w/h/d) (19 3/4 6 7/8 11 inches) Mass approx. 5.2 kg (11 lb. 7 oz) Supplied accessories Mains lead (1) Remote control (RMT-CM35AD) (1) MW/LW loop aerial (1) Design and specifications are subject to change without notice. 收音机爱好者资料库 Ra d i o Fa n s .CN 3 1.SERVICING NOTES 1-1. Notes on Handl

11、ing the Optical Pick-up Block or Base Unit .4 1-2. Notes on Laser Diode Emission Check.4 1-3. Notes on Chip Component Replacement .4 1-4. Flexible Circuit Board Repairing .4 1-5. Chuck Plate Jig on Repairing .4 1-6. Demonstration .4 1-7. Checking the Laser Diode and Focus Search Operation.4 1-8. Jig

12、 for Checking BD Board Waveform .5 1-9. Checks Prior to Parts Replacement and Adjustments .6 1-10. Change of Pulley .6 2.GENERAL Playing a CD .7 Recording a whole CD .7 Playing an MD.8 Listening to the radio.8 3.DISASSEMBLY 3-1. Cabinet (Rear) Assy .9 3-2. Power Board .9 3-3. Cabinet (Upper) Assy .1

13、0 3-4. MD Block Assy .10 3-5. Tuner Board.11 3-6. Jack Board.11 3-7. LED Board .12 3-8. Key Board .12 3-9. Top Board .13 3-10. FL Board .13 3-11. Main board .14 3-12. CD Board .14 3-13. CD Mechanism Block .15 3-14. DG Board .15 3-15. Plate (Front), Shield .16 3-16. MD Mechanism Block-1 (MDM-5GA) .16

14、 3-17. MD Mechanism Block-2 (Slider (Cam) Assy) .17 3-18. MD Mechanism Block-3 (BD Board).18 3-19. MD Mechanism Black-4 (SW Board).18 4.TEST MODE 4-1. MD section .19 5.ELECTRICAL ADJUSTMENTS 5-1. Tuner section .24 5-2. MD section .26 5-3. CD section.33 TABLE OF CONTENTS 6.DIAGRAMS 6-1. IC Pin Functi

15、on Descriptions. 35 6-2. Circuit Boards Location . 44 6-3. Block Diagram Tuner Section.45 6-4. Block Diagram MD Section. 48 6-5. Block Diagram CD Section.51 6-6. Block Diagram Audio Section . 53 6-7. Schematic Diagram CD Section (1/2).55 6-8. Schematic Diagram CD Section (2/2).57 6-9. Printed Wiring

16、 Boards CD Section .59 6-10. Printed Wiring Boards Tuner Section .61 6-11. Schematic Diagrams Tuner Section . 63 6-12. Printed Wiring Boards BD Section .65 6-13. Schematic Diagram BD Section (1/2).67 6-14. Schematic Diagrams BD Section (2/2) .69 6-15. Schematic Diagram DG Section .71 6-16. Schematic

17、 Diagram DG Section .73 6-17. Printed Wiring Board DG Section.75 6-18. Printed Wiring Board Main Section . 77 6-19. Schematic Diagram Main Section (1/3). 79 6-20. Schematic Diagram Main Section (2/3). 81 6-21. Schematic Diagram Main Section (3/3). 83 6-22. Printed Wiring Boards Panel Section . 85 6-

18、23. Schematic Diagrams Panel Section.87 6-24. Printed Wiring Boards Switch Section. 89 6-25. Schematic Diagrams Switch Section . 91 6-26. Printed Wiring Boards Power Supply Section . 93 6-27. Schematic Diagrams Power Supply Section .95 6-28. IC Block Diagrams. 97 7.EXPLODED VIEWS 7-1. Cabinet (Rear)

19、 Section . 103 7-2. Cabinet (Front) Section .104 7-3. Cabinet (Upper) Section. 105 7-4. MD Block Section.106 7-5. MD Mechanism Section (MDM-5GA). 107 7-6. MD Base unit Section (MBU-5A) .108 7-7. Optical Pick-up Section (KSM-213CDM). 109 8.ELECTRICAL PARTS LIST. 110 收音机爱好者资料库 Ra d i o Fa n s .CN 4 SE

20、CTION 1 SERVICING NOTES This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the bottom exterior. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST A

21、RE 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. 1-1. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electro- static break-d

22、own because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily dama

23、ged and should be handled with care. 1-2. NOTES ON LASER DIODE EMISSION CHECK The laser 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 emis- sion, observe from more tha

24、n 30 cm away from the objective lens. 1-3. NOTES ON CHIP COMPONENT REPLACEMENT Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. 1-4. FLEXIBLE CIRCUIT BOARD REPAIRING Keep the temperature of the soldering iron around 270 C dur- in

25、g 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. 1-5. CHUCK PLATE JIG ON REPAIRING On repairing CD section, playing a disc without the CD lid, use Chuck Plate Jig. C

26、ode number of Chuck Plate Jig: X-4918-255-1 1-6. DEMONSTRATION This set enters the demonstration mode about 10 seconds after the power cord is connected. The demonstration displays such as “DEMONSTRATION MODE” and “CREATE YOUR ORIGINAL MD” then appears. When no operation is entered for one minute af

27、ter the OPERATE button is turned on, the demonstration mode is also entered. To release the demonstration mode, set the timer in this set or press and hold down the NO/CANCEL button for about 2 seconds. 1-7. CHECKING THE LASER DIODE AND FOCUS SEARCH OPERATION 1. Turn on the POWER and open the CD cov

28、er. 2. As shown below, push S402 (CD DOOR) with a screwdriver or other tool. 3. Press the CD button. 4. Check the objective lens to make sure that the laser diode is emitting light. If not so, the auto power control circuit or optical pickup would be damaged. Verify that the objective lens moves ver

29、tically three times for focus search. S402 CAUTION Use of controls or adjustments or performance of proce- dures other than those specified herein may result in haz- ardous radiation exposure. 5 1-8. JIG FOR CHECKING BD BOARD WAVEFORM The special jig (J-2501-149-A) is useful for checking the wavefor

30、m of the BD board. The names of terminals and the checking items to be performed are shown as follows. GND : Ground I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser) IOP : For measuring IOP (Check the deterioration of the optical pick-up laser) TEO : TRK error signal (T

31、raverse adjustment) VC: Reference level for checking the signal RF: RF signal (Check jitter) CN110 RF 5P connector 6P connector VCTEO IOP I+3V GND Mechanism deck RF VC TEOfor MDM-3 for MDM-5 IOP I+3V VC RF TEO IOP I+3V GND VC RF TEO IOP I+3V GND 1 5 1 6 6 1-9. CHECKS PRIOR TO PARTS REPLACEMENT AND A

32、DJUSTMENTS (FOR MD SECTION) Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent. Details of the procedures are described in “5 Electrical Adjustments”. 0.9 mW power Specified value : 0.84 to 0.92 mW 7.0 mW power Specified value : 6.8 to 7.

33、2 mW lop (at 7mW) Labeled on the optical pickup Iop value 10mA Error rate check Specified value : For points a, b, and c C1 error : About 200 ADER : Below 2 Error rate check Specified value: a. When using test disc (MDW-74/AU-1) C1 error : Below 80 ADER : Below 2 b. When using check disc (TDYS-1) C1

34、 error : Below 50 CPLAY error rate check Specified value: C1 error : Below 80 ADER : Below 2 Laser power check (6-1 : See page 28) Focus bias check (6-2 : See page 28) C PLAY check (6-3 : See page 28) Self-recording/playback check (6-4 : See page 28) Criteria for Determination (Unsatisfactory if spe

35、cified value is not satisfied) Clean the optical pick-up Adjust again Replace the optical pick-up Replace the optical pick-up Replace the optical pick-up Replace the optical pick-up If always unsatisfactory: Replace the overwrite head Check for disconnection of the circuits around the overwrite head

36、 If occasionally unsatisfactory: Check if the overwrite head is distorted Check the mechanism around the sled Measure if unsatisfactory: Note: The criteria for determination above is intended merely to determine if satisfactory or not, and does not serve as the specified value for adjustments. When

37、performing adjustments, use the specified values for adjustments. 1-10. CHANGE OF PULLEY pulley M102, 103 2.5 mm Install the pulley to the motor. 7 SECTION 2 GENERALThis section is extracted from instruction manual. Playing a CD For hookup instructions, see pages 64 - 67. 1Press Z PUSH OPEN/CLOSE do

38、wn to open the CD compartment and place the CD on the CD compartment. 2Close the lid of the CD compartment. 3Press CD u (CD N on the remote). The player turns on (direct power-on) and the player plays all the tracks once. With the label side up Display Playing time Track number 1, 23 Use these butto

39、ns for additional operations ToPress adjust the volumeVOLUME +, (VOL +, on the remote) stop playbackCD x pause playbackCD u (CD X on the remote) Press the button again to resume play after pause. go to the next track go back to the previous track. remove the CDZ PUSH OPEN/CLOSE turn on/off the playerOPERATE Tip Next time you want to listen to a C