sony_ZS-M35_a_service_manual 维修电路图.pdf

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1、 1 ZS-M35 SERVICE MANUAL PERSONAL MINIDISC SYSTEM US Model Canadian Model Taiwan Model CD Model Name Using Similar MechanismPMC-20 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 Opti

2、cal 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 i

3、s 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.) 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

4、 Radio section Frequency range FM: 87.5 - 108 MHz AM: 530 - 1,710 kHz Antennas FM: Telescopic antenna AM: AM loop antenna SPECIFICATIONS MD player section System Minidisc digital audio system Disc MiniDisc Laser diode properties Material: GaAlAs Wave length: 785 nm Emission duration: Continuous Lase

5、r 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: Maximum 80 minutes (with MDW-80) Monaural recording: Maximum 160 minutes (with MDW-8

6、0) 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 AUDIO POWER SPECIFICATIONS (US model) POWER OUTPUT AND TOTAL HARMONIC DISTORTION With 4-ohm loads, both channels driven from 150 - 10,000 Hz

7、; rated 4 W per channel- minimum RMS power, with no more than 10% total harmonic distortion in AC operation. Ver 1.2 2001.07 Sony Corporation Personal Audio Company Shinagawa Tec Service Manual Production Group 9-927-183-33 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

8、 Acoustic Coding (ATRAC) Modulation system EFM (Eight-to-Fourteen Modulation) Number of programme positions 2 stereo programme positions Frequency response 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 c

9、m (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 impedance headphones Power output (excluding US model) 5 W + 5 W (at 4 ohms, 10 % harmonic distortion in AC operation) Power requirements For

10、personal minidisc system: 120 V AC, 60 Hz For back-up memory: 4.5 V DC, 3 size AA (R6) batteries For remote control: 3 V DC, 2 size AA (R6) batteries Power consumption 24 W Dimensions (incl. projecting parts) Approx. 498.5 173.5 227 mm (w/h/d) (17 3/4 6 1/2 9 1/2 inches) Mass Approx. 5.2 kg (13 lb.

11、4 oz) Supplied accessories AC power cord (1) Remote control (RMT-CM35A) (1) AM loop antenna (1) Design and specifications are subject to change without notice. To Exposed Metal Parts on Set 0.15F 1.5k AC voltmeter (0.75V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. SAFETY CHECK-O

12、UT After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST The AC

13、leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 o

14、r RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” in

15、dication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) SAFETY-RELATED COMPONENT WARNING! COMPON

16、ENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 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. ATTENTION AU COMPOSANT AYANT RAPPORT LA

17、 SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. 收音机爱好者资料库 Ra d

18、 i o Fa n s .CN 3 1.SERVICING NOTES 1-1. Notes on Handling 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. Ch

19、ecking the Laser Diode and Focus Search Operation. 4 1-8. Jig 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. Cab

20、inet (Rear) Assy . 9 3-2. Power Board. 9 3-3. Cabinet (Upper) Assy . 10 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

21、 . 15 3-15. Plate (Front), Shield . 16 3-16. MD Mechanism Block-1 (MDM-5GA) . 16 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 . 22 5-2

22、. MD section . 24 5-3. CD section. 31 TABLE OF CONTENTS 6.DIAGRAMS 6-1. IC Pin Function Descriptions . 33 6-2. Circuit Boards Location . 42 6-3. Block Diagram Tuner Section.43 6-4. Block Diagram MD Section.46 6-5. Block Diagram CD Section.49 6-6. Block Diagram Audio Section .51 6-7. Schematic Diagra

23、m CD Section (1/2).53 6-8. Schematic Diagram CD Section (2/2).55 6-9. Printed Wiring Boards CD Section .57 6-10. Printed Wiring Boards Tuner Section .59 6-11. Schematic Diagrams Tuner Section .61 6-12. Printed Wiring Boards BD Section .63 6-13. Schematic Diagram BD Section (1/2).65 6-14. Schematic D

24、iagrams BD Section (2/2) . 67 6-15. Schematic Diagram DG Section .69 6-16. Schematic Diagram DG Section .71 6-17. Printed Wiring Board DG Section. 73 6-18. Printed Wiring Board Main Section .75 6-19. Schematic Diagram Main Section (1/3). 77 6-20. Schematic Diagram Main Section (2/3). 79 6-21. Schema

25、tic Diagram Main Section (3/3). 81 6-22. Printed Wiring Boards Panel Section . 83 6-23. Schematic Diagrams Panel Section.85 6-24. Printed Wiring Boards Switch Section.87 6-25. Schematic Diagrams Switch Section . 89 6-26. Printed Wiring Boards Power Supply Section .91 6-27. Schematic Diagrams Power S

26、upply Section . 93 6-28. IC Block Diagrams. 95 7.EXPLODED VIEWS 7-1. Cabinet (Rear) Section . 101 7-2. Cabinet (Front) Section . 102 7-3. Cabinet (Upper) Section. 103 7-4. MD Block Section. 104 7-5. MD Mechanism Section (MDM-5GA). 105 7-6. MD Base unit Section (MBU-5A) . 106 7-7. Optical Pick-up Sec

27、tion (KSM-213CDM). 107 8.ELECTRICAL PARTS LIST. 108 收音机爱好者资料库 Ra d i o Fa n s .CN 4 SECTION 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. 1-1. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE

28、 UNIT The laser diode in the optical pick-up block may suffer electro- static break-down 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 pr

29、inted matter which is included in the repair parts. The flexible board is easily damaged 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

30、-up block. Therefore, when checking the laser diode emis- sion, observe from more than 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 CI

31、RCUIT BOARD REPAIRING Keep the temperature of the soldering iron around 270 C dur- ing 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 REPAIRI

32、NG 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 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 “

33、CREATE YOUR ORIGINAL MD” then appears. When no operation is entered for one minute after the POWER 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

34、THE LASER DIODE AND FOCUS SEARCH OPERATION 1. Turn on the POWER and open the CD cover. 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 c

35、ircuit or optical pickup would be damaged. Verify that the objective lens moves vertically 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

36、BD BOARD WAVEFORM The special jig (J-2501-149-A) is useful for checking the waveform 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 IO

37、P (Check the deterioration of the optical pick-up laser) TEO : TRK error signal (Traverse 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

38、 GND VC RF TEO IOP I+3V GND 1 5 1 6 6 1-9. CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS (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 m

39、W power Specified value : 0.84 to 0.92 mW 7.0 mW power Specified value : 6.8 to 7.2 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 ch