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MZ-NH700 NHF800
SERVICE MANUAL US Model
MZ-NHF800
Ver 1.1 2004.09 Canadian Model
AEP Model
UK Model
E Model
Australian Model
MZ-NH700/NHF800
Chinese Model
Tourist Model
MZ-NH700
Photo: MZ-NHF800
Model Name Using Similar Mechanism NEW
US and foreign patents licensed from Dolby
Laboratories Licensing Corporation.
MD Mechanism Type MT-MZNH900-181
Optical Pick-up Name ABX-U
• SonicStage and SonicStage logo are trademarks or registered trademarks of Sony Corporation.
• MD Simple Burner, OpenMG, “M
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MZ-NH700/NHF800 Battery life CAUTION When recording continuously Use of controls or adjustments or performance of procedures Hi-MD mode (When using a 1GB Hi-MD disc) other than those specified herein may result in hazardous radiation 3) (Unit: approx.hours)(JEITA ) Batteries Linear Hi-SP Hi-LP exposure. PCM NH-7WMAA 34.5 5 4) Notes on chip component replacement 5) LR6 2.5 3.5 4.5 • Never reuse a disconnected chip component. 3) Measured in accordance with the JEITA (Japan Electronics and • Notic
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MZ-NH700/NHF800 Ver 1.1 TABLE OF CONTENTS 1. SERVICING NOTES ................................................ 4 2. GENERAL Location of Controls ........................................................ 5 3. DISASSEMBLY 3-1. Disassembly Flow ........................................................... 6 3-2. Case (Lower) Section ...................................................... 7 3-3. MAIN Board.................................................................... 7 3-4. Case (Upper) Section .
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MZ-NH700/NHF800 SECTION 1 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK-UP Providing the required system environment BLOCK OR BASE UNIT System requirements The laser diode in the optical pick-up block may suffer electrostatic The following system environment is required in order to use the SonicStage/MD Simple break-down because of the potential difference generated by the Burner software for the MD Walkman. charged electrostatic load, etc. on clothing and the human body. Compute
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MZ-NH700/NHF800 SECTION 2 This section is extracted from instruction manual. GENERAL Looking at controls The recorder The headphones/earphones with a remote control (MZ-NHF800) 1 8 F 9 2 G q; A H 3 B I qa C J 4 D K qs E qd 5 qf 6 7 qg A VOL +, − buttons C Display window Press to adjust the volume. D x (stop) button A Display window E DC IN 3V jack B Jog lever (NX/ENT, ., > • E (group) +, − BAND, TUNE −, TUNE +) B T MARK/REC (+N) button F X (pause) button When using an MiniDisc F RADIO ON/OFF
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MZ-NH700/NHF800 Ver 1.1 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW Note 1: The process described in can be performed in any order. Note 2: Without completing the process described in , the next process can not be performed. SET 3-2. CASE (LOWER) SECTION (Page 7) 3-3. MAIN BOARD 3-4. CASE (UPPER) SECTION (Page 7) (Page 8) 3-5. MECHANISM DECK SECTION (MT-MZNH900-181), MD STANDARD PIN (Page 8) 3-7. GEAR (BSA), GEAR (SB) 3-6. SET CH
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MZ-NH700/NHF800 3-2. CASE (LOWER) SECTION 1 two screws (M1.4) 1 two screws (M1.4) 2 Remove the case (lower) section in the direction of the arrow. 3-3. MAIN BOARD 2 LCD module flexible board (CN471) 3 motor flexible board (CN701) 6 OP flexible board (CN501) 1 Remove two solders of over write head flexible board. 7 MAIN board 5 4 screw (M1.4) 4 three screws (M1.4) 7
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MZ-NH700/NHF800 3-4. CASE (UPPER) SECTION 1 LCD module flexible boaed (CN471) 7 case (upper) section 5 6 boss 3 herical torsion spring (L) 4 two step screws 2 Open the case (upper) section. 3-5. MECHANISM DECK SECTION (MT-MZNH900-181), MD STANDARD PIN 1 two step screws (MD) 2 mechanism deck section (MT-MZNH900-181) 3 MD standard pin 8
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MZ-NH700/NHF800 3-6. SET CHASSIS ASSY 5 two screws 1 torsion coil spring (R) 2 extension spring (R) 7 set chassis assy 6 battery case 3 compression coil spring (open) 4 open slider 3-7. GEAR (BSA), GEAR (SB) 1 self tap screw 2 thrust retainer spring 3 washer (0.8-2.5) 4 gear (BSA) 5 gear (SB) 9
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MZ-NH700/NHF800 3-8. OP SERVICE ASSY 1 Lead screw block assy is turned and it removes from OP service assy. 2 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) 3 two screws (M1.4) 4 DC motor (sled) (M702) 2 Remove two solders of flexible board. 1 Remove four solders of flexible board. 8 self tap screw 6 three self tap screws 9 DC motor unit (over write head up/down) (M703) 7 DC motor SSM18D/C-NP (spindle)
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MZ-NH700/NHF800 Ver 1.1 3-10. HOLDER ASSY 4 Remove the holder assy to the direction of the arrow A. 2 boss 3 Open the holder assy. 1 boss A 3-11. POSITION OF FERRITE CORE -REMOTE CONTROL UNIT- A cable is rolled once. Remote control unit (RM-MC21, RM-MC40ELK) (RM-MC21, RM-MC39LT, RM-MC40ELK) 20mm clamp filter (ferrite core) (Part No. 1-543-793-41) A cable is rolled once. (RM-MC39LT) 20mm clamp filter (ferrite core) (Part No. 1-543-793-41) -AC ADAPTOR- A cable is rolled once. (AC-ES3010K) 40m
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MZ-NH700/NHF800 Ver 1.1 SECTION 4 TEST MODE OUTLINE 2. OPERATION IN SETTING THE TEST MODE • When the test mode becomes active, first the Display Check A key having no particular description in the text, indicates a set mode is selected. key. • Other mode can be selected from the Display Check mode. • When the test mode is set, the LCD repeats the following 1. ENTERING THE TEST MODE display. Preparation: Copy the “TestMode_Enter_For_900_800_700_600_600D_ Ver***.exe” folder of the PC app
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MZ-NH700/NHF800 Ver 1.1 4. CONFIGURATION OF THE TEST MODE 5. MANUAL MODE This is mode to adjust or check the operation of the set by function. Flow of the test mode: Operation of The Manual Mode Display Check Mode 1. Enter the test mode (Display Check mode). 00# Version display → All lit 2. Press the [VOL+] key to activate the Manual mode where the Ver *.*** → All off → Version display... LCD displays as shown below. Display Manual Mode [VOL +] key 0 0 Manual Manual x key Number of 1000t
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MZ-NH700/NHF800 Ver 1.1 6. OVERALL ADJUSTMENT MODE 6-2. Error Message in The Overall Adjustment Mode 6-1. Operation of The Overall Adjustment Mode In the Overall Adjustment mode, if an error occurred, it displays as 1. Enter the test mode (Display Check mode). following table. 2. Press the [VOL--] key to activate the Overall Adjustment mode where the LCD displays as shown below. Display Description Close! Dose not close the lid Display DfDis! Unsuitableness disc was inserted NoChg! Does not fi
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MZ-NH700/NHF800 Ver 1.1 Flow of Self-diagnosis Result Display mode operation: 8. KEY CHECK MODE This mode is used for key check. *** Operation of The Key Check Mode The first error 1 #### 1. Enter the test mode (Display Check mode). 2. Press the [GROUP] key to activate the Key Check mode where the LCD displays as shown below. [VOL +] key [VOL --] key Display *** The last error N #### 11* $$$$$$ ## [VOL +] key [VOL --] key “*”: Remote commander (0: with, 4: without) “$$$$$$”: Pressed key name.
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MZ-NH700/NHF800 Ver 1.1 SECTION 5 ELECTRICAL ADJUSTMENTS 1. PRECAUTIONS FOR ADJUSTMENT 3-3. Setting The Temperature Correction Value 1. Adjustment must be done in the test mode only. After adjusting, Procedure: release the test mode. A key having no particular description 1. In the test mode (Display Check mode), press the [VOL+] key in the text, indicates a set key. to enter the Manual mode. 2. Use the following tools and measuring instruments. 2. Press the > key twice, and press the [VOL+]
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MZ-NH700/NHF800 Ver 1.1 3-4-2. PwrAdj adjustments ItemNo. Display Specification value Measuring point Repeat the following procedures and adjust all contents of “table 3- 2211 211 AD ** 2.05 V + 0.02 V CL8027 4-1. PwrAdj Specifications”. 2212 212 AD ** 2.25 V ± 0.01 V CL8027 2213 213 AD ** 1.20 V + 0.01 V CL8001 Example Display (Item No. 2211) 2214 214 AD ** 3.10 V ± 0.015 V CL658 2215 215 AD ** 3.10 V ± 0.015 V CL658 211 2216 216 AD ** 3.02 V ± 0.02 V CL919 AD ** 2217 217 AD ** 3.02 V ± 0.02 V
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MZ-NH700/NHF800 Ver 1.1 3-4-3. VBsAdj adjustments 3-5. Charge Function Check Procedure: Note: When perform this check, don’t apply a voltage to battery terminals. 1. In the “3-4-2. PwrAdj Adjustments” completed status, press Procedure: the > key to display as follows. 1. Connect the digital voltmeter to CL431 (BATT+) and CL433 (GND). Display 2. Enter the test mode using the AC adapter. 240 3. Press the [VOL+] key to enter the Manual mode. VBsAdj 4. Press the [VOL+] key twice to display as foll
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MZ-NH700/NHF800 Ver 1.1 3-6. Laser Power Check Example of Calculation: Procedure: Result Item No. Parameter 1. In the test mode (Display Check mode), press the [VOL+] key Decimal Hexadecimal to enter the Manual mode. 0211 Pr_nominal 2.50 mW 50 32h 2. Open the lid and press the . key continuously until the 0212 Kr −0.3 %/°C30 1Eh optical pick-up moves to the most inward track. 0213 Pw_nominal 7.35 mW 147 93h 3. Set the laser power meter so that the laser beam from the optical 0214 Kw −0.4 %/°C4
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MZ-NH700/NHF800 Ver 1.1 3-8. Servo Overall Adjustment Note1: Be sure to adjustment so that the set is horizontal and the LCD is upside. Unless performed in that state, it is not adjusted correctly. Note2: If NG is displayed in the middle of this adjustments, perform “3-2. Initialize The Adjustment Value” and “3-7. Setting The Adjustment Values” again, then retry this adjustments from step 1. Procedure: 1. Insert the full charged Ni-MH rechargeable battery (NH- 10WM), then open and close the lid
