SONY MZ-N505电路原理图 .pdf

SERVICE MANUAL PORTABLE MINIDISC RECORDER US Model Canadian Model AEP Model UK Model SPECIFICATIONS MZ-N505 US and foreign patents licensed from Dolby Laboratories. Continued on next page Model Name Using Similar MechanismMZ-N707 Mechanism TypeMT-MZN707-177 Optical Pick-up NameLCX-5R Ver 1.0 2002. 01 9-873-459-01Sony 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,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 International Business Machines Corporation. Macintosh is a trademark of Apple Computer,Inc.in the United States 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: 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.) 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 correction ACIRC (Advanced Cross Interleave Reed Solomon Code) Sampling frequency 44.1 kHz Sampling rate converter Input: 32 kHz/44.1 kHz/48 kHz 本资料由O K X I A 视听皮带资源库w w w . o k x i a . c n 提供 本资料由视听皮带资源库 收集整理提供 2 MZ-N505 General Power requirements Sony AC Power Adaptor (supplied) connected at the DC IN 3 V jack (country model in parentheses): 120 V AC, 60 Hz (USA, Canada) 230 V AC, 50/60 Hz (Continental Europe) 230 - 240 V AC, 50 Hz (UK) Nickel Cadmium rechargeable battery NC- WMAA (supplied) LR6 (size AA) alkaline battery (not supplied) Dimensions Approx. 81 27.9 74.4 mm (w/h/d) (31/4 11/8 3 in.) without projections. Mass Approx. 104 g (3.7 oz) the recorder only Design and specifications are subject to change without notice. Supplied accessories NC-WMAA Nickel Cadmium rechargeable ba (European model only) (1) ttery AC power adaptor (1) Headphones/earphones with a remote control (1) Optical cable (European model only) (1) USB cable (1) Battery carrying case (1) Carrying case with a belt clip (European model only) (1) C Minidisc (blank) (US and Canadian models only) (1) D-ROM (1)* Do not play a CD-ROM on an audio CD player. Battery life1) When recording2) (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 accordance 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 using 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 (Japan 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). Coding ATRAC (Adaptive TRansform Acoustic Coding) A TRAC3 LP2/LP4 Modulation system EFM (Eight to Fourteen Modulation) 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 Line in: stereo mini-jack, minimum input level 49 mV Optical (Digital) in: optical (digital) mini-jack Outputs i: stereo mini-jack, maximum output level 5 mW + 5 mW, load impedance 24 ohm (US model only) 5 mW + 5 mW, load impedance 16 ohm (except US model) 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 PUB- LISHED BY SONY. 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 LES SUPPLMENTS PUBLIS PAR SONY. 本资料由视听皮带资源库 收集整理提供 3 MZ-N505 TABLE OF CONTENTS 1.SERVICING NOTES.4 2.GENERAL.5 3.DISASSEMBLY 3-1.Disassembly Flow .6 3-2.Case (Lower) .7 3-3.Case (Upper) Section .7 3-4.LCD Module, Case (Upper) Sub Assy .8 3-5.Mechanism Deck (MT-MZN707-177) .8 3-6.Set Chassis (5188) Assy.9 3-7.MAIN Board .9 3-8.OP Service Assy (LCX-5R). 10 3-9.Holder Assy . 11 3-10. 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 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 Diagram 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.Case 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 (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 side 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 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 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 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 viscous (sticky, less prone to flow) than ordinary solder so 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. On power sources Use house current, Nickel Cadmium rechargeable battery, LR6 (size AA) 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. Polarity of the plug 本资料由视听皮带资源库 收集整理提供 4 MZ-N505 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-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 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 optical 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 handled 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. Handle the FLEXIBLE board (overwrite 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 (overwrite head) and the MAIN board with the lead wires in advance. laser-tap Replacement of CXD2677-202GA (IC801) used 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) to 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 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 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 Windows 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 manufacturer-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/ WindowsMe) Display: High (16bit) Color or more (800 480 dot or more) Internet access: for Web registration and EMD services Windows Internet access: for sfortware upgrades and CDDB2 use. (US and Canadian models) Media Player (version 7.0 or higher) installed for playing WMA files. Notes Trouble-free operation 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-free 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 OpenMG 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 “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 Account. 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 integrity and reliability of song playback. For more information about backup, refer to the online Help for OpenMG Juke