sony_MZ-N707_service_manual 维修电路图.pdf

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1、SERVICE MANUAL PORTABLE MINIDISC RECORDER US Model Canadian Model AEP Model UK Model SPECIFICATIONS MZ-N707 US and foreign patents licensed from Dolby Laboratories. Continued on next page Model Name Using Similar MechanismNEW Mechanism TypeMT-MZN707-177 Optical Pick-up NameLCX-5R Ver 1.0 2002. 01 9-

2、873-458-01Sony Corporation 2002A0500-1Personal Audio Company C 2002.1Published by Sony Engineering Corporation OpenMG, “MagicGate”, “MagicGate Memory Stick”, “Memory Stick”, VAIO,MusicClip and their logos are trademarks of Sony Corporation. “WALKMAN” is a trademark of Sony Corporation. Microsoft,Win

3、dows,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 International Business Machines Corporation. Macintosh is a trademark of Apple Computer,Inc.in the United States

4、and/or other countries. All other trademarks are trademarks of their respective owners. and marks are omitted in this manual. MD Recorder Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs MQW Wavelength: = 790 nm Emission duration: continuous Laser output: le

5、ss 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.) Recording and playback time When using MDW-80 Maximum 160 min. in monaural Maximum 320 min. in stereo Revolutions Approx. 380 rpm to 2,700 rpm (CLV) Error

6、 correction ACIRC (Advanced Cross Interleave Reed Solomon Code) Sampling frequency 44.1 kHz Sampling rate converter Input: 32 kHz/44.1 kHz/48 kHz Coding ATRAC (Adaptive TRansform Acoustic Coding) ATRAC3 LP2 ATRAC3 LP4 收音机爱好者资料库 Ra d i o Fa n s .CN 2 MZ-N707 Modulation system EFM (Eight to Fourteen M

7、odulation) Number of channels 2 stereo channels 1 monaural channel Frequency response 20 to 20,000 Hz 3 dB Wow and Flutter Below measurable limit Inputs Microphone: stereo mini-jack, minimum input level 0.35 mV Line in: stereo mini-jack, minimum input level 49 mV Optical (Digital) in: optical (digit

8、al) mini-jack Output i: stereo mini-jack, maximum output level 5mW+5mW, load impedance 16 ohm (except US model) 5mW+5mW, load impedance 24 ohm (US model) General Power requirements Sony AC Power Adaptor connected at the DC IN 3 V jack (country model in parentheses): 120 V AC, 60 Hz (USA, Canada) 230

9、 V AC, 50/60 Hz (Continental Europe) 230 - 240 V AC, 50 Hz (U.K.) Nickel Cadmium rechargeable battery NC- WMAA (supplied) LR6 (size AA) alkaline battery (not supplied) Dimensions Approx. 81 74.4 27.7 mm (w/h/d) (31/4 3 11/8 in.) without projections. Mass Approx. 116 g (4.1 oz) the recorder only Supp

10、lied accessories NC-WMAA Nickel Cadmium rechargeable battery (1) AC power adaptor (1) Headphones/earphones with a remote control (1) Battery charging stand (1) Optical cable (1) USB cable (1) CD-ROM (1)* Carrying case with a belt clip (1) (except US model) Battery carrying case (1) Carrying pouch (1

11、) (US and Canadian models) Car connecting pack (1) (US and Canadian models) Blank Minidisc (1) (US and Canadian models) Design and specifications are subject to change without notice. Car battery cord (1) (US and Canadian models) Do not play a CD-ROM on an audio CD player. Battery life1) When record

12、ing2) (Unit: approx.hours)(JEITA3) 1)The battery life may be shorter due to operating conditions, the temperature of the location, and varieties of batteries. 2)When you record, use a fully charged rechargeable battery. Recording time may differ according to the alkaline batteries. 3)Measured in acc

13、ordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard. BatteriesSP Stereo LP2 Stereo LP4 Stereo NC-WMAA Nickel Cadmium rechargeable battery4) 4)When using a 100% fully charged rechargeable battery. 467.5 LR6 (SG) Sony alkaline dry battery5) 5)When usin

14、g a Sony LR6 (SG) “STAMINA” alkaline dry battery (produced in Japan). 91316 When playing (Unit: approx.hours)(JEITA1) BatteriesSP Stereo LP2 Stereo LP4 Stereo NC-WMAA Nickel Cadmium rechargeable battery2) 151620 LR6 (SG) Sony alkaline dry battery3) 424856 1)Measured in accordance with the JEITA (Jap

15、an Electronics and Information Technology Industries Association) standard. 2)When using a 100% fully charged rechargeable battery. 3)When using a Sony LR6 (SG) “STAMINA” alkaline dry battery (produced in Japan). ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE

16、 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 LES SUPPLMENTS PUBLIS PAR SONY. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY M

17、ARK 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 PUB- LISHED BY SONY. 收音机爱好者资料库 Ra d i o Fa n s .CN 3 MZ-N707 On power sources

18、Use house current, Nickel Cadmium rechargeable battery, LR6 (SG) battery, or car battery. 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. kh ACd Polarity of the plug TABLE OF CONTENTS 1

19、.SERVICING NOTES.4 2.GENERAL.5 3.DISASSEMBLY 3-1.Disassembly Flow .6 3-2.Case (Lower) .7 3-3.Upper Panel Section.7 3-4.LCD Module, Upper Panel Sub Assy .8 3-5.Mechanism Deck (MT-MZN707-177) .8 3-6.Set Chassis (5192) Assy.9 3-7.MAIN Board .9 3-8.OP Service Assy (LCX-5R). 10 3-9.Holder Assy . 11 3-10.

20、 DC Motor (Sled) (M602). 11 3-11. DC SSM18B Motor (Spindle) (M601), DC Motor (Over Write Head Up/Down) (M603) . 12 4.TEST MODE. 13 5.ELECTRICAL ADJUSTMENTS. 19 6.DIAGRAMS 6-1.Block Diagram SERVO/USB Section . 32 6-2.Block Diagram AUDIO Section . 33 6-3.Block Diagram DISPLAY/KEY CONTROL/ POWER SUPPLY

21、 Section . 34 6-4.Note for Printed Wiring Board and Schematic Diagrams . 35 6-5.Printed Wiring Board MAIN Board (Component Side) . 36 6-6.Printed Wiring Board MAIN Board (Conductor Side) . 37 6-7.Schematic Diagram MAIN Board (1/4) . 38 6-8.Schematic Diagram MAIN Board (2/4) . 39 6-9.Schematic Diagra

22、m MAIN Board (3/4) . 40 6-10. Schematic Diagram MAIN Board (4/4) . 41 6-11. IC Pin Function Description . 48 7.EXPLODED VIEWS 7-1.Upper Panel, Case (Lower) Section . 55 7-2.Chassis Section . 56 7-3.MAIN Board Section . 57 7-4.Mechanism Deck Section-1 (MT-MZN707-177). 58 7-5.Mechanism Deck Section-2

23、(MT-MZN707-177). 59 8.ELECTRICAL PARTS LIST. 60 CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus sid

24、e of a tantalum capacitor may be dam- aged by heat. Flexible Circuit 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

25、 when soldering or unsoldering. 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 FREE MARK

26、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 regulator shou

27、ld 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 viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on I

28、C pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. 收音机爱好者资料库 Ra d i o Fa n s .CN 4 MZ-N707 NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electro-

29、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 printed matter which is included in the repair parts. The flexible board

30、is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK Never look into the laser diode emission from right above when checking it for adjustment. It is feared that you will lose your sight. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK (LCX-5R) The laser diode in the op

31、tical pick-up block may suffer electro- static break-down easily. When handling it, perform soldering bridge to the laser-tap on the flexible board. Also perform mea- sures against electrostatic break-down sufficiently before the op- eration. The flexible board is easily damaged and should be handle

32、d with care. OPTICAL PICK-UP FLEXIBLE BOARD SECTION 1 SERVICING NOTES In performing the repair with the power supplied to the set, re- moving the MAIN board causes the set to be disabled. In such a case, fix a convex part of the open/close detect switch (S806 on MAIN board) with a tape in advance. H

33、andle the FLEXIBLE board (over write head) with care, as it has been soldered directly to the MAIN board. In repairing the component side of MAIN board, connect the FLEXIBLE board (over write head) and the MAIN board with the lead wires in advance. laser-tap Replacement of CXD2677-202GA (IC801) used

34、 in this set re- quires a special tool. The shipment data will be cleared when the NV is reset. There- fore, change the NV adjusted values following the Change of NV Adjusted Values immediately after the NV was reset. (See page 19) This set requires the patch data in the nonvolatile memory (IC804) t

35、o be rewritten using the application, when the MAIN board or nonvolatile memory (IC804) was replaced. (See page 29) System requirements IBM PC/AT or Compatible (The software does not run on Macintosh.) CPU: MMX Pentium 233 MHz or higher (Pentium II 400 MHz or higher is recommended.) Hard disk drive

36、space: 60 MB or more (The amount of necessary space depends on the version of the Windows OS or the size of your audio files.) RAM: 64 MB or higher (128 MB or higher is recommended for Windows XP Home Edition/Windows XP Professional.) CD-ROM drive (capable of digital playback by WDM) Sound Board USB

37、 port (supports USB 2.0 Full Speed (previously USB 1.1) Operating System: Windows 98/Windows 98 Second Edition/Windows 2000 Professional/Windows Me/Windows XP Home Edition/Windows XP Professional (manufacturer installed) The NTFS format of Windows 2000 Professional, Windows XP Home Edition, or Windo

38、ws XP Professional (manufacturer-installed) is supported only when used with the standard (factory) settings. This software is not supported by the following environments. Windows 95, Windows NT, or other versions of Windows NT (such as Server) An environment that is an upgrade of the original manuf

39、acturer-installed operating system, as in the following examples: Windows 3.1/Windows 95 t Windows 98 (or Windows 98 Second Edition/ Windows Me) Windows Me/Windows 2000 Professional t Windows XP Multi-boot environment with Windows 2000 (or Windows XP) and Windows 98 (or Windows 98 Second Edition/Win

40、dowsMe) Display: High (16bit) Color or more (800 480 dot or more) Internet access: for Web registration and EMD services Internet access: for software upgrades and CDDB2 use. (US and Canadian models) Windows Media Player (version 7.0 or higher) installed for playing WMA files. Notes Trouble-free ope

41、ration is not assured within a multiple-monitor environment. We do not assure trouble-free operation for all computers satisfying the system requirements. Trouble-free operation is not guaranteed following the self-conducted upgrade of home-built PCs or operating systems. We do not assure trouble-fr

42、ee operation of the system suspend, sleep, or hibernation function on all computers. For details, refer to “Net MD Help” of the online help. Note The optical digital output connector (on computers provided with one) may be disabled during playback for the protection of copyrights. Notes on using Ope

43、nMG Jukebox with Windows 2000/Windows XP If your computer is Windows 2000 Professional, Windows XP Home Edition, or Windows XP Professional, please be aware of the following before instaling OpenMG Jukebox. 1 With Windows 2000 Professional, you must log on as “Administrators” (or with the user name

44、“Administrator”) to install OpenMG Jukebox. 2With Windows XP Home Edition or Windows XP Professional, you must log on with user name “Computer Administrator” to install OpenMG Jubebox. To check whether a user name has the attribute of “Computer Administrator” or not, go to Control Panel - User Accou

45、nt. Notes on using OpenMG Jukebox with Windows XP/ Windows Me If Windows XP/Windows Me is installed in your computer, and you perform the “System Restore” function of the Windows “System Tools,” the songs managed by OpenMG Jukebox may become corrupted and rendered unplayable. Therefore, before executing “System Restore,” back up the songs using “OpenMG Jukebox Backup Tool” first. Then, after the “System Restore” function is finished, restore the songs using “OpenMG Jukebox Backup Tool” to ensure the inte