索尼 MZ-NH1_sm 电路图 维修手册.pdf
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1、SERVICE MANUAL PORTABLE MINIDISC RECORDER US Model AEP Model UK Model E Model Australian Model Chinese Model Tourist Model SPECIFICATIONS MZ-NH1 Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: = 790 nm Emission duration: continuous Laser output:
2、 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 (Refer to page 94 for details) When using HMD1G (1GB disc): Maximum 34 hours in Hi-LP stereo When using MDW-80 in Hi-MD mod
3、e: Maximum 10 hours and 10 min. in Hi-LP stereo When using MDW-80 in MD mode: Maximum 160 min. in monaural Maximum 320 min. in LP4 stereo Revolutions 350 rpm to 3,600 rpm (CLV) Error correction Hi-MD: LDC (Long Distance Code)/BIS (Burst Indicator Subcode) MD: ACIRC (Advanced Cross Interleave Reed So
4、lomon Code) Sampling frequency 44.1 kHz Sampling rate converter Input: 32 kHz/44.1 kHz/48 kHz Coding Hi-MD: Linear PCM (44.1 kHz/16 bit) PCM AT R AC3plus (Adaptive TRansform Acoustic Coding 3 plus) MD: AT R AC AT R AC3 LP2/LP4 Modulation system Hi-MD: 1-7RLL (Run Length Limited)/PRML (Partial Respon
5、se Maximum Likelihood) 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
6、/LINE OUT 2) : stereo mini-jack (dedicated emote control jack)/194 mV (10 k ) Maximum output (DC) 2) Headphones: 5 mW + 5 mW (16 ) Power requirements Sony AC Power Adaptor connected at the DC IN 6V jack: 120 V AC, 60 Hz (Models for USA, Canada, Mexico, and Taiwan) 240 V AC, 50 Hz (Model for Australi
7、a) 230 V AC, 50 Hz (Models for U.K. and Hong Kong) 220 V AC, 50 Hz (Model for China) 100 - 240 V AC, 50/60 Hz (Other models) The recorder: Lithium-ion rechargeable battery LIP-4WM, 3.7 V, 370 mAh, Li-ion Battery charging stand: AC power adaptor DC 6V Operating temperature +5 C (+41 F) to +35 C (+95
8、F) Hi-MD mode (When using a 60/74/80- minute standard disc) (Unit: approx.hours)(JEITA) Battery life 4) Hi-MD mode (When using a 1GB Hi- MD disc) (Unit: approx.hours)(JEITA 3) ) When Linear PCM Hi-SP Hi-LP Recording continuously 68 . 5 9.5 Playing continuously 10 15.5 18 When Linear PCM Hi-SP Hi-LP
9、Recording continuously 589 Playing continuously 8 14.5 17.5 Ver 1.1 2004.09 US and foreign patents licensed from Dolby Laboratories. Model Name Using Similar Mechanism NEW MD Mechanism Type MT-MZNH1-181 Optical Pick-up Name ABX-U 9-879-075-02 2004I05-1 2004.09 Sony Corporation Personal Audio Company
10、 Published by Sony Engineering Corporation Continued on next page SonicStage and SonicStage logo are trademarks or registered trademarks of Sony Corporation. M D Simple Burner, OpenMG, “MagicGate”, “MagicGate Memory Stick”, “Memory Stick”, Hi- MD, Net MD, A TRAC, A TRAC3, A TRAC3plus and their logos
11、 are trademarks of Sony Corporation. M icrosoft, 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. M acintosh is a
12、 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 their respective holders.2 MZ-NH1 Dimensions Approx. 81.7 76
13、.1 14.8 mm (w/h/d) (3 1 /4 3 19 /32 in.) (excluding projecting parts and controls) Mass Approx. 97 g (3.4 oz) (the recorder only) Approx. 107 g (3.8 oz) (including the rechargeable battery) 1) The LINE IN (OPT) jack is used to connect either a digital (optical) cable or a line (analog) cable. 2) The
14、 i/LINE OUT jack connects either headphones/earphones or a line cable. Design and specifications are subject to change without notice. Your dealer may not handle some of the above listed accessories. Please ask the dealer for detailed information about the accessories in your country. When using opt
15、ional headphones, use only headphones/earphones with stereo mini plugs. You cannot use headphones/ earphones with micro plugs. 4) When using a 100% fully charged lithium-ion rechargeable battery 3) Measured in accordance with the JEITA (Japan Electronics and Information Technology Industries Associa
16、tion) standard. On power sourcesUse house current or rechargeable battery.For use in your house: For the supplied battery charging stand, 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 M
17、D mode (Unit: approx.hours)(JEITA) When SP Stereo LP2 Stereo LP4 Stereo Recording continuously 81 01 0.5 Playing continuously 14.5 17 18.53 MZ-NH1 TABLE OF CONTENTS 1. SERVICING NOTES . 4 2. GENERAL . 5 3. DISASSEMBLY 3-1. Disassembly Flow . 7 3-2. Bottom Panel Sub Assy . 7 3-3. MAIN Board. 8 3-4. U
18、pper Panel Sub Assy . 8 3-5. Control Ornament Block . 9 3-6. Mechanism Deck Assy (MT-MZNH1-181) . 9 3-7. Gear (SA), Gear (SB) . 10 3-8. Op Service Assy . 10 3-9. DC SSM18D/C-NP Motor (Spindle) (M701), DC SSM21A/C-NP Motor (Sled) (M702), DC Motor Unit (Over Write Head Up/Down) (M703) . 11 3-10. Holde
19、r Assy . 11 4. TEST MODE . 12 5. ELECTRICAL ADJUSTMENT . 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. Schematic Diagram MAIN Section (1/9) . 25 6-5. Schematic Diagram MAIN Section (2/9) . 26 6-6. Schem
20、atic Diagram MAIN Section (3/9) . 27 6-7. Schematic Diagram MAIN Section (4/9) . 28 6-8. Schematic Diagram MAIN Section (5/9) . 29 6-9. Schematic Diagram MAIN Section (6/9) . 30 6-10. Schematic Diagram MAIN Section (7/9) . 31 6-11. Schematic Diagram MAIN Section (8/9) . 32 6-12. Schematic Diagram MA
21、IN Section (9/9) . 33 6-13. Printed Wiring Board MAIN Section (1/2) . 34 6-14. Printed Wiring Board MAIN Section (2/2) . 35 7. EXPLODED VIEWS 7-1. PANEL SECTION . 49 7-2. MAIN SECTION . 50 7-3. MECHANISM DECK SECTION . 51 8. ELECTRICAL PARTS LIST . 52 Notes on chip component replacement Never reuse
22、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 the soldering iron on the same conductor of the circuit board (within 3 ti
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