索尼 MZ-RH910_sm 电路图 维修手册.pdf

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1、SERVICE MANUAL PORTABLE MD RECORDER US Model Canadian Model AEP Model UK Model E Model Australian Model Tourist Model SPECIFICATIONS MZ-RH910 Ver. 1.0 2005.03 Model Name Using Similar Mechanism NEW MD Mechanism Type MT-MZNH900-181J Optical Pick-up Name ABX-UJ 9-879-561-01 2005C05-1 2005.03 Sony Corp

2、oration Personal Audio Group Published by Sony Engineering Corporation Continued on next page US and foreign patents licensed from Dolby Laboratories. SonicStage is trademark or registered trademark of Sony Corporation. MD Simple Burner, OpenMG, “MagicGate”, “MagicGate Memory Stick”, “Memory Stick”,

3、 Hi-MD, Net MD, ATRAC, ATRAC3, ATRAC3plus and their logos are trademarks of Sony Corporation. Microsoft, Windows, Windows NT and Windows Media are trademarks or registered trademarks of Microsoft Corporation in the United States and /or other countries. IBM and PC/AT are registered trademarks of Int

4、ernational Business Machines Corporation. Macintosh is a trademark of Apple Computer, Inc. in the United States and/ or other countries. P entium is a trademark or registered trademark of Intel Corporation. All other trademarks and registered trademarks are trademarks or registered trademarks of the

5、ir respective holders. and marks are omitted in this manual. CD and music-related data from Gracenote, Inc., copyright 2000- 2004 Gracenote. Gracenote CDDB Client Software, copyright 2000- 2004 Gracenote. This product and service may practice one or more of the following U.S. Patents: #5,987,525; #6

6、,061,680; #6,154,773, #6,161,132, #6,230,192, #6,230,207, #6,240,459, #6,330,593, and other patents issued or pending. Services supplied and/or device manufactured under license for following Open Globe, Inc. United States Patent 6,304,523. Gracenote is a registered trademarks of Gracenote. The Grac

7、enote logo and logotype, and the “Powered by Gracenote” logo are trademarks of Gracenote. Program 2001, 2002, 2003, 2004, 2005 Sony Corporation Documentation 2005 Sony Corporation Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: = 790 nm Emission

8、 duration: continuous Laser output: less than 44.6 W (This output is the value measured at a distance of 200 mm from the lens surface on the optical pick-up block with 7 mm aperture.)2 MZ-RH910 Recording and playback time Revolutions 350 rpm to 3,000 rpm (CLV) Error correction Hi-MD: LDC (Long Dista

9、nce Code)/BIS (Burst Indicator Subcode) MD: ACIRC (Advanced Cross Interleave Reed Solomon Code) Sampling frequency 44.1 kHz Sampling rate converter Optical (digital) input: 32 kHz/44.1 kHz/ 48 kHz Audio formats supported by this recorder Recording: Linear PCM (44.1 kHz/16 bit) AT RAC3plus (Adaptive

10、TRansform Acoustic Coding 3 plus) (Hi-SP/Hi-LP) Playback: Linear PCM AT R AC3plus AT R AC3 AT R A C MP3 (MPEG-1 Audio Layer-3/Sampling frequency 44.1 kHz/Bit rate 32 - 320 kbps (constant/variable bit rate) Modulation system Hi-MD: 1-7RLL (Run Length Limited)/PRML (Partial Response Maximum Likelihood

11、) MD: EFM (Eight to Fourteen Modulation) Frequency response 20 to 20,000 Hz 3 dB Inputs 1) MIC: stereo mini-jack (minimum input level 0.13 mV) Line in: stereo mini-jack for analog input (minimum input level 49 mV) optical (digital) mini-jack for optical (digital) input Outputs i: stereo mini-jack (d

12、edicated remote control jack) 1) The LINE IN (OPT) jack is used to connect either a digital (optical) cable or a line (analog) cable. List of the recording time for each disc When using a disc in Hi-MD mode When recording on the recorder Recording time 1) 1) Approximate time Recording mode on the re

13、corder Codec/ Bit rate 1GB Hi-MD disc 80-minute standard disc 74-minute standard disc 60-minute standard disc PCM Linear PCM/ 1.4Mbps 1 hour and 34 minutes 28 minutes 26 minutes 21 minutes Hi-SP ATRAC3plus/ 256kbps 7 hours and 55 minutes 2 hours and 20 minutes 2 hours and 10 minutes 1 hour and 40 mi

14、nutes Hi-LP ATRAC3plus/ 64kbps 34 hours 10 hours and 10 minutes 9 hours and 20 minutes 7 hours and 40 minutes When transferring from the computer Recording time 1)2) 2) When transferring 4-minute tracks Codec/Bit rate 1GB Hi-MD disc 80-minute standard disc 74-minute standard disc 60-minute standard

15、disc Linear PCM/1.4Mbps 1 hour and 34 minutes 28 minutes 26 minutes 21 minutes ATRAC3plus/256kbps 7 hours and 55 minutes 2 hours and 20 minutes 2 hours and 10 minutes 1 hour and 40 minutes AT R A C 3 plus/64kbps 34 hours 10 hours and 10 minutes 9 hours and 20 minutes 7 hours and 40 minutes AT R A C

16、3 plus/ 48 kbps 45 hours 13 hours and 30 minutes 12 hours and 30 minutes 10 hours ATRAC3/132kbps 16 hours and 30 minutes 4 hours and 50 minutes 4 hours and 30 minutes 3 hours and 40 minutes ATRAC3/105kbps 20 hours and 40 minutes 6 hours and 10 minutes 5 hours and 40 minutes 4 hours and 40 minutes AT

17、RAC3/66kbps 32 hours and 40 minutes 9 hours and 50 minutes 9 hours 7 hours and 20 minutes MP3/128kbps 17 hours 5 hours 4 hours and 30 minutes 3 hours and 30 minutes When using a disc in MD mode You cannot record in MD mode on this recorder. When transferring from the computer Recording time 1)2) 1)

18、Approximate time 2) When transferring 4-minute tracks Codec/Bit rate 80-minute standard disc 74-minute standard disc 60-minute standard disc ATRAC(stereo)/292kbps 80 minutes 74 minutes 60 minutes ATRAC3/132, 105kbps 2 hours and 40 minutes 2 hours and 28 minutes 2 hours AT R AC3/66kbps 5 hours and 20

19、 minutes 4 hours and 56 minutes 4 hours Maximum output (DC) Headphones: 2.8 mW + 2.8 mW (16 ) (European models) 5 mW + 5 mW (16 ) (Other models) Power requirements Sony AC Power Adaptor connected at the DC IN 3V jack: 120 V AC, 60 Hz (Models for USA, Canada, Mexico and Taiwan) 240 V AC, 50 Hz (Model

20、 for Australia) 220 V AC, 50 Hz (Models for China and Argentine) 100 - 240 V AC, 50/60 Hz (Other models) The recorder: Nickel metal hydride rechargeable battery NH-10WM 1.2V 900 mAh (MIN) Ni-MH LR6 (size AA) alkaline battery AC power adaptor DC 3V Operating temperature +5C (+41F) to +35C (+95F) Batt

21、ery operation time 2) Dimensions Approx. 80.2 20.7 84.3 mm (w/h/d) (3 1 /4 27 /32 3 3 /8 in.) (excluding projecting parts and controls) Mass Approx. 112 g (4.0 oz) (the recorder only) Approx. 138 g (4.9 oz) (including the rechargeable battery) Supplied accessories AC power adaptor Remote control (ex

22、cept US and Canadian models) Earphones Dedicated USB cable NH-10WM Nickel metal hybride rechargeable battery Battery carrying case Dry battery case Optical cable (except US and Canadian models) Clamp filters (small-size) CD-ROM (SonicStage/MD Simple Burner)* Carrying poach * Do not play a CD-ROM on

23、an audio CD player. 2) Measured in accordance with JEITA. Design and specifications are subject to change without notice. When playing continuously in Hi-MD mode (Unit: approx.hours)(JEITA) When playing continuously in MD mode (Unit: approx.hours)(JEITA) Battery life When recording continuously in H

24、i-MD mode (Unit: approx.hours)(JEITA 1) ) Disc type Batteries Linear PCM Hi-SP Hi-LP 1GB Hi-MD disc NH-10WM 2) 45 . 5 6.5 LR6 3) 233 . 5 NH-10WM + LR6 6.5 9 11 60/74/80-minute standard disc NH-10WM 3.5 5.5 6.5 LR6 4 6.5 7.5 NH-10WM + LR6 8 13 15 1) Measured in accordance with the JEITA (Japan Electr

25、onics and Information Technology Industries Association) standard. 2) When using a 100% fully charged nickel metal hydride rechargeable battery 3) When using a Sony LR6 (size AA) alkaline dry battery (produced in Japan) Disc type Batteries Linear PCM Hi-SP Hi-LP MP3 1) 1) Tracks transferred at 128 k

26、bps 1GB Hi-MD disc NH-10WM 6.5 9.5 11 10 LR6 10.5 15.5 18 16.5 NH-10WM + LR6 20 30 34.5 31.5 60/74/80-minute standard disc NH-10WM 5.5 9 11 10 LR6 8.5 15 18 16.5 NH-10WM + LR6 16.5 28.5 34.5 31.5 Disc type Batteries SP LP2 LP4 60/74/80-minute standard disc NH-10WM 10 11 12 LR6 17.52 02 1 NH-10WM + L

27、R63 3 3 7 39.53 MZ-RH910 Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing. Do not touch t

28、he 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. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposur

29、e. SAFETY-RELATED COMPONENT WARNING! COMPONENTS 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 SO

30、NY. ATTENTION AU COMPOSANT AYANT RAPPORT LA 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 COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS L

31、ES SUPPLMENTS PUBLIS PAR SONY. On power sources For use in your house: Use the AC power adaptor supplied with this recorder. Do not use any other AC power adaptor since it may cause the recorder to malfunction. Polarity of the plug TABLE OF CONTENTS 1. SERVICING NOTES . 4 2. GENERAL . 5 3. DISASSEMB

32、LY 3-1. Disassembly Flow . 6 3-2. Case (Lower) Block . 6 3-3. MAIN Board. 7 3-4. Panel (Upper) Section . 7 3-5. Mechanism Deck (MT-MZNH900-181J) . 8 3-6. Battery Case Block . 8 3-7. Gear (BSA), Gear (SB) . 9 3-8. OP Service Assy . 9 3-9. DC Motor SSM18D/C-NP (Spindle) (M701), DC Motor (Sled) (M702),

33、 DC Motor Unit (Over Write Head Up/Down) (M703) . 10 3-10. Holder Assy . 10 3-11. Position of Ferrite Core . 11 4. TEST MODE . 12 5. ELECTRICAL ADJUSTMENTS . 16 6. DIAGRAMS 6-1. Block Diagram MD SERVO Section . 21 6-2. Block Diagram AUDIO Section . 22 6-3. Block Diagram POWER SUPPLY Section . 23 6-4

34、. Schematic Diagram MAIN Board (1/9) . 25 6-5. Schematic Diagram MAIN Board (2/9) . 26 6-6. Schematic Diagram MAIN Board (3/9) . 27 6-7. Schematic Diagram MAIN Board (4/9) . 28 6-8. Schematic Diagram MAIN Board (5/9) . 29 6-9. Schematic Diagram MAIN Board (6/9) . 30 6-10. Schematic Diagram MAIN Boar

35、d (7/9) . 31 6-11. Schematic Diagram MAIN Board (8/9) . 32 6-12. Schematic Diagram MAIN Board (9/9) . 33 6-13. Printed Wiring Board MAIN Board (Component Side) . 34 6-14. Printed Wiring Board MAIN Board (Conductor Side) . 35 7. EXPLODED VIEWS 7-1. Case (Lower) Section . 48 7-2. Panel (Upper) Section

36、 . 49 7-3. Chassis Section . 50 7-4. Mechanism Deck Section (MT-MZNH900-181J) . 51 8. ELECTRICAL PARTS LIST . 524 MZ-RH910 SECTION 1 SERVICING NOTES The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrost

37、atic 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 damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK T

38、he 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 emission, observe from more than 30 cm away from the objective lens. NOTES ON HANDLING THE OPTICAL PICK-UP BLOC

39、K OR BASE UNIT OPERATION CHECK WHEN THE MAIN BOARD IS REMOVED In making an operation check with the MAIN board removed from the set, short the SL894 of the MAIN board with the solder before starting the operation check. Note: Be sure to remove the solder used for shortcircuit after the repaire compl

40、eted. MAIN BOARD (Conductor Side) SL894 UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FR

41、EE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regula

42、tor should be set to about 350 C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such

43、 as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. Providing the required system environment The following system environment is required in order to use the SonicStage Ver. 3.0/MD Simple Burner Ver. 2.0 s

44、oftware for the MD Walkman. This software is not supported by the following environments: OSs other than the indicated above Personally constructed PCs or operating systems An environment that is an upgrade of the original manufacturer-installed operating system Multi-boot environment Multi-monitor environment Macintosh We do not ensure trouble-free operation on all computers that satisfy the system requirements. The NTFS format of Windows XP/Windows 2000 Professiona