sony_mznh600d_service_manual 维修电路图.pdf

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1、SERVICE MANUAL PORTABLE MINIDISC PLAYER US Model Canadian Model SPECIFICATIONS MZ-NH600D Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: = 790 nm Emission duration: continuous Laser output: less than 44.6 W (This output is the value measured at

2、a distance of 200 mm from the lens surface on the optical pick-up block with 7 mm aperture.) Recording and playback time When using HMD1G (1GB disc): Maximum 34 hours in Hi-LP stereo When using MDW-80 in Hi-MD mode: Maximum 10 hours and 10 min. in Hi-LP stereo When using MDW-80 in MD mode: Maximum 1

3、60 min. in monaural Maximum 320 min. in LP4 stereo Revolutions 380 rpm to 2,700 rpm (CLV) Error correction Hi-MD: LDC (Long Distance Code)/BIS (Burst Indicator Subcode) MD: ACIRC (Advanced Cross Interleave Reed Solomon Code) Sampling frequency 44.1 kHz Sampling rate converter Input: 32 kHz/44.1 kHz/

4、48 kHz Coding Hi-MD: ATRAC3plus (Adaptive TRansform Acoustic Coding 3 plus) MD: ATRAC ATRAC3 LP2/LP4 Modulation system Hi-MD: 1-7RLL (Run Length Limited)/PRML (Partial Response Maximum Likelihood) MD: EFM (Eight to Fourteen Modulation) Frequency response 20 to 20,000 Hz 3 dB Outputs i1): stereo mini

5、-jack Maximum output (DC) Headphones: 5 mW + 5 mW (16 ) Power requirements One LR6 (size AA) alkaline battery (not supplied) Operating temperature +5C (+41F) to +35C (+95F) Dimensions Approx. 83.6 28.9 77.0 mm (w/h/d) (3 3/8 13/16 31/8 in.) (excluding projecting parts and controls) Mass Approx. 99 g

6、 (3.5 oz) (the player only) 1)Measured in accordance with JEITA. Supplied accessories Headphones (US) Earphones (Canadian) Dedicated USB Cable CD-ROM (Sonic Stage Ver. 2.0/MD Simple Burner Ver. 2.0)* *Do not play a CD-ROM on an audio CD player. Ver 1.0 2004.05 US and foreign patents licensed from Do

7、lby Laboratories. Model Name Using Similar MechanismNEW MD Mechanism TypeMT-MZNH900-181 Optical Pick-up Mechanism TypeABX-U 9-877-841-01 2004E05-1 2004.05 Sony Corporation Personal Audio Company Published by Sony Engineering Corporation SonicStage, MD Simple Burner, OpenMG, “Magic Gate”, “MagicGate

8、Memory Stick”, “Memory Stick”, 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 ar

9、e registered trademarks of International Business Machines Corporation. Macintosh is a trademark of Apple Computer, Inc. in the United States and/or other countries. MMX and Pentium are trademarks or registered trademarks of Intel Corporation. All other trademarks and registered trademarks are trade

10、marks or registered trademarks of their respective holders. Continued on next page 收音机爱好者资料库 Ra d i o Fa n s .CN 2 MZ-NH600D TABLE OF CONTENTS 1.SERVICING NOTES.3 2.GENERAL.4 3.DISASSEMBLY 3-1.Disassembly Flow .5 3-2.Case (Lower) Section .6 3-3.MAIN Board.6 3-4.Case (Upper) Section.7 3-5.Mechanism D

11、eck Section (MT-MZNH900-181), MD Standard Pin .7 3-6.Set Chassis Assy .8 3-7.Gera (BSA), Gera (SB) .8 3-8.Op Service Assy .9 3-9.DC MOTOR SSM18D/C-NP (SPINDLE) (M701), DC MOTOR (SLED) (M702), DC MOTOR Unit (Over Write Head Up/Down) (M703) .9 3-10. Holder Assy . 10 4.DIAGRAMS 4-1.Block Diagram MD SER

12、VO Section . 11 4-2.Block Diagram POWER SUPPLY Section . 12 4-3.Printed Wiring Board MAIN Section (1/2) . 14 4-4.Printed Wiring Boards MAIN Section (2/2) . 15 4-5.Schematic Diagram MAIN Section (1/8) . 16 4-6.Schematic Diagram MAIN Section (2/8) . 17 4-7.Schematic Diagram MAIN Section (3/8) . 18 4-8

13、.Schematic Diagram MAIN Section (4/8) . 19 4-9.Schematic Diagram MAIN Section (5/8) . 20 4-10. Schematic Diagram MAIN Section (6/8) . 21 4-11. Schematic Diagram MAIN Section (7/8) . 22 4-12. Schematic Diagram MAIN Section (8/8) . 23 5.EXPLODED VIEWS 5-1.Case (Lower) Section . 34 5-2.Case (Upper) Sec

14、tion. 35 5-3.Chassis Section. 36 5-4.Mechanism Deck Section (MT-MZNH900-181) . 37 6.ELECTRICAL PARTS LIST. 38 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 Kee

15、p the temperature of the soldering iron around 270 C 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. CAUTION Use of controls or adjustments or performance of p

16、rocedures other than those specified herein may result in hazardous radiation exposure. 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 f

17、ree mark due to their particular size) : LEAD FREE 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

18、time. Soldering irons using a temperature regulator 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

19、use caution not to let solder bridges occur such 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. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMM

20、ES 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 LES SUPPLMENTS PUBLIS PAR SONY. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LIN

21、E 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. Design and specifications are subject to change without notice. When playing c

22、ontinuously in MD mode Battery life1) When playing continuously in Hi-MD mode Disc typeLinear PCMHi-SPHi-LP 1GB Hi-MD discApprox. 11.0 hours2) Approx. 21.5 hours2) Approx. 25.5 hours2) 60/74/80-minute standard disc Approx. 9.5 hours2) Approx. 20.0 hours2) Approx. 24.5 hours2) 1)When using a new Sony

23、 LR6 (size AA) alkaline dry battery (produced in Japan) 2)Measured in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard. Disc typeSP stereoLP2 stereoLP4 stereo 60/74/80-minute standard disc Approx. 20.5 hours Approx. 24.5 hours Approx. 27.0 hour

24、s 收音机爱好者资料库 Ra d i o Fa n s .CN 3 MZ-NH600D The laser diode in the optical pick-up block may suffer electrostatic 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

25、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 laser beam on this model is concentrated so as to be focused on the disc reflective surface by the obj

26、ective 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. OPERATION CHECK WHEN THE LID IS OPEN In performing the repair with the power supplied to the set, removing the MAIN board causes the set to be disa

27、bled. In such a case, make a solder bridge to short SL894 (OPEN/CLOSE) on the MAIN board in advance. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT SECTION 1 SERVICING NOTES SL894 (OPEN/CLOSE) MAIN Board (Conductor Side) Providing the required system environment The following system enviro

28、nment is required in order to use the SonicStage Ver. 2.0/MD Simple Burner Ver. 2.0 software 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 o

29、riginal 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 Professional can be used only with the standard (factor

30、y) settings. We do not ensure trouble-free operation of the system suspend, sleep, or hibernation function on all computers. For Windows 2000 Professional users, install Service Pack 3 or later version before using the software. System requirements ComputerIBM PC/AT or Compatible CPU: Pentium II 400

31、 MHz or higher (Pentium III 450 MHz or higher is recommended.) Hard disk drive space: 200 MB or more (1.5 GB or more is recommended) (The amount space will vary according to Windows version and the number of music files stored on the hard disk.) RAM: 64 MB or more (128 MB or more is recommended) Oth

32、ers CD drive (capable of digital playback by WDM) Sound Board USB port (supports USB (previously USB 1.1) Operating System Factory installed: Windows XP Media Center Edition 2004/Windows XP Media Center Edition/Windows XP Professional/Windows XP Home Edition/ Windows 2000 Professional/Windows Millen

33、nium Edition/Windows 98 Second Edition DisplayHigh Color (16bit) or higher, 800 600 dots or better (1024 768 dots or better is recommended) Others Internet access: for Web registration, EMD services and CDDB Windows Media Player (version 7.0 or higher) installed for playing WMA files Notes 收音机爱好者资料库

34、 Ra d i o Fa n s .CN 4 MZ-NH600D SECTION 2 GENERAL This section is extracted from instruction manual. Looking at controls The player A x (stop) CANCEL button B OPEN switch C Display window D DOWNLOAD button This button allows you to record music tracks from an audio CD in the CD drive of your comput

35、er to an MD Walkman using the supplied MD Simple Burner Ver. 2.0 software. E NAVI/MENU button Press lightly to go to the NAVI (navigation) setting mode. Press for 2 seconds or more to go to the MENU setting mode. F GROUP button G X (pause) button H Jog dial I 5-way control key OperationFunction Pres

36、s NENT 1) 1)There are tactile dots beside the NENT and VOL + buttons. play, enter Press towards . find the beginning of the previous track, rewind Press towards find the beginning of the next track, fast forward Press towards VOL +1) or VOL volume J USB cable connecting jack K Battery compartment (a

37、t the bottom) L HOLD switch Slide the switch in the direction of the arrow to disable the buttons on the player. To prevent the buttons from being accidentally operated when you carry the player, use this function. M i (headphones/earphones) jack The display window of the player A Character informat

38、ion display Displays the disc and track names, date, error messages, track numbers, etc. B Hi-MD/MD indication “Hi-MD” lights up when the operation mode of the player is in Hi- MD mode and “MD” lights up when the operation mode is in MD mode. C REC indication Lights up during file transfers from the

39、 computer. When flashing, the player is in record standby mode. D Battery indication Shows the approximate remaining battery power. If the battery is weak, the indication becomes empty and starts flashing. E Disc indication Shows that the disc is rotating for playing. F Track mode (PCM, Hi-SP, Hi-LP

40、, SP, LP2, LP4, MONO) indication G Sub play mode/Repeat play indications Shows the selected Sub play mode (single-track play, shuffle play, etc.) or Repeat play. H Main play mode indications Shows the selected main play mode (group play, bookmark play, etc.). 123 45 678 MZ-NH600D 5 This set can be d

41、isassembled in the order shown below. 3-1.DISASSEMBLY FLOW SECTION 3 DISASSEMBLY 3-2.CASE (LOWER) SECTION (Page 6) 3-3.MAIN BOARD (Page 6) 3-4.CASE (UPPER) SECTION (Page 7) 3-5.MECHANISM DECK SECTION (MT-MZNH900-181), MD STANDARD PIN (Page 7) 3-7.GEAR (BSA), GEAR (SB) (Page 8) 3-8.OP SERVICE ASSY (P

42、age 9) 3-9.DC MOTOR SSM18D/C-NP (SPINDLE) (M701), DC MOTOR (SLED) (M702), DC MOTOR UNIT (OVER WRITE HEAD UP/DOWN) (M703) (Page 9) 3-10. HOLDER ASSY (Page 10) 3-6.SET CHASSIS ASSY (Page 8) SET Note 1: The process described in can be performed in any order. Note 2: Without completing the process descr

43、ibed in , the next process can not be performed. MZ-NH600D 6 3-3.MAIN BOARD 2LCD module flexible board (CN471) 6three screws (M1.4) 1Remove two solders of over write head flexible board. 8OP flexible board (CN501) 3motor flexible board (CN701) 9MAIN board 5leaf spring (USB) 4screw (M1.4) 7 3-2.CASE

44、(LOWER) SECTION 2Remove the case (lower) section in the direction of the arrow. 1two screws (M1.4) 1two screws (M1.4) MZ-NH600D 7 3-4.CASE (UPPER) SECTION 1LCD module flexible boaed (CN471) 7case (upper) section 6boss 3herical torsion spring (L) 2Open the case (upper) section. 4two step screws 5 3-5

45、.MECHANISM DECK SECTION (MT-MZNH900-181), MD STANDARD PIN 2mechanism deck section (MT-MZNH900-181) 3MD standard pin 1two step screws (MD) MZ-NH600D 8 3-6.SET CHASSIS ASSY 3-7.GEAR (BSA), GEAR (SB) 1torsion coil spring (R) 2extension spring (R) 5two screws 3compression coil spring (open) 4open slider

46、 6battery case 7set chassis assy 1self tap screw 2thrust retainer spring 3washer (0.8-2.5) 4gear (BSA) 5gear (SB) MZ-NH600D 9 3-8.OP SERVICE ASSY 3-9.DC MOTOR SSM18D/C-NP (SPINDLE) (M701), DC MOTOR (SLED) (M702), DC MOTOR UNIT (OVER WRITE HEAD UP/DOWN) (M703) 3Remove lead screw block assy. 4OP service assy 2rack spring 1screw (M1.4) 3t