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SERVICE MANUAL
Ver 1.1 2004.09
US and foreign patents licensed from Dolby
Laboratories.
•
SonicStage and SonicStage logo are trademarks or registered trademarks of Sony Corporation.
•
MD Simple Burner, OpenMG,
Magic Gate
"
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 are 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 trademarks or registered trademarks of their
respective holders.
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 790 nm
Emission duration: continuous
Laser output: less than 44.6 µW
(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 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 160 min. in monaural
Maximum 320 min. in LP4 stereo
Revolutions
350 rpm to 3,000 rpm (CLV)
Error correction
Hi-MD:
LDC (Long Distance Code)/BIS (Burst
Indicator Subcode)
MD:
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
Sony Corporation
9-879-121-02
Personal Audio Company
2004I05-1
Published by Sony Engineering Corporation
© 2004.09
For other Service and User Manuals, go to www.ManualDepot.com
,
MagicGate Memory Stick
,
Memory Stick
"
"
"
"
SPECIFICATIONS
Sampling frequency
44.1 kHz
Sampling rate converter
Input: 32 kHz/44.1 kHz/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
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
MZ-NH900
Model Name Using Similar Mechanism
MD Mechanism Type
Optical Pick-up Name
,
"
Outputs
i/LINE OUT
2)
: stereo mini-jack (dedicated
remote control jack)/194 mV (10 kΩ)
2)
Maximum output (DC)
Headphones:
3 mW + 3 mW (16 Ω) (European models)
5 mW + 5 mW (16 Ω) (Other models)
Power requirements
Sony AC Power Adaptor connected at the DC
IN 3V jack:
120 V AC, 60 Hz (Models for USA, Canada,
Mexico and Taiwan)
240 V AC, 50 Hz (Model for Australia)
220 V AC, 50 Hz (Models for China and
Argentine)
100 - 240 V AC, 50/60 Hz (Other models)
The recorder:
Nickel metal hydride rechargeable battery
NH-10WM 1.2V 900 mAh (MIN) Ni-MH
LR6 (size AA) alkaline battery
Battery charging stand:
AC power adaptor DC 3V
Operating temperature
+5° C (+41° F) to +35° C (+95° F)
Dimensions
Approx. 81.3 × 77.8 × 21.2 mm (w/h/d)
× 3
×
1
1
27
(3
/
/
/
in.) (excluding projecting
4
8
32
parts and controls)
PORTABLE MINIDISC RECORDER
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
Tourist Model
NEW
MT-MZNH900-181
ABX-U
Mass
Approx. 110 g (3.9 oz) (the recorder only)
Approx. 133 g (4.7 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 i/LINE OUT jack connects either
headphones/earphones or a line cable.
3)
Measured in accordance with JEITA.
Supplied accessories
AC power adaptor (1)
Battery charging stand (1)
Remote control (1)
Headphones (for USA model) (1)
Earphones (except USA model) (1)
Dedicated USB cable (1)
NH-10WM Nickel metal hydride rechargeable
battery (1)
CD-ROM (SonicStage/MD Simple Burner) (1)*
Dry battery case (1)
Battery carrying case (1)
Carrying pouch (except USA model) (1)
Optical cable (1)
Clamp filter (2)
*Do not play a CD-ROM on an audio CD
player.
Design and specifications are subject to change
without notice.
Table of Contents
Related Manuals for Sony Walkman MZ-MH900
Summary of Contents for Sony Walkman MZ-MH900
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Page 1: Specifications
US and foreign patents licensed from Dolby Laboratories. 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, Magic Gate MagicGate Memory Stick Memory Stick “... - Page 2 Association) standard. When using a 100% fully charged nickel metal hydride rechargeable battery When using a Sony LR6 (size AA) “STAMINA” alkaline dry battery (produced in Japan) Flexible Circuit Board Repairing When recording continuously in MD mode •...
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Page 3: Table Of Contents
MZ-NH900 TABLE OF CONTENTS SERVICING NOTES ..........4 GENERAL ..............5 DISASSEMBLY 3-1. Disassembly Flow ............7 3-2. Case (Lower) Block ............8 3-3. MAIN Board ..............8 3-4. Upper Panel Block ............9 3-5. Mechanism Deck (MT-MZNH900-181) ......9 3-6. -
Page 4: Servicing Notes
MZ-NH900 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. -
Page 5: General
MZ-NH900 SECTION 2 This section is extracted from instruction manual. GENERAL Looking at controls The recorder A •NAVI/ J GROUP button MENU button Operation Function Press lightly to go to the NAVI K zREC (record) switch Press NENT play, enter (navigation) setting mode. - Page 6 MZ-NH900 The headphones/earphones with a remote control F Clip See “Using the clip for the remote control”. G HOLD switch To prevent the buttons from being accidentally operated when you carry the recorder, use this function. H DISPLAY button I P-MODE/ button J SOUND button A Volume Control (VOL +, –)
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Page 7: Disassembly
MZ-NH900 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. 3-2. -
Page 8: Case (Lower) Block
MZ-NH900 Note: Follow the disassembly procedure in the numerical order given. 3-2. CASE (LOWER) BLOCK 6 case (lower) block 4 two screws (M1.4) 5 two screws (M1.4) 3 screw (M1.4) 2 battery lid 1 Open the battery lid in the direction of arrow. 3-3. -
Page 9: Upper Panel Block
MZ-NH900 3-4. UPPER PANEL BLOCK 5 upper panel block 4 two screws (M1.4) 3 two screws (M1.4) 1 flexible board (CN471) 2 Slide the open slider in the direction of arrow A , and open the upper panel sub assy in the direction of arrow B . 3-5. -
Page 10: Battery Case Block
MZ-NH900 3-6. BATTERY CASE BLOCK 2 MD standard pin 3 two screws (1.7 × 2.5 ) 1 claw 7 battery case block 5 tension spring (lock) 4 screw (M1.4) 6 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) -
Page 11: Op Service Assy
MZ-NH900 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) -
Page 12: Holder Assy
MZ-NH900 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 3-11. POSITION OF FERRITE CORE -REMOTE COMMANDER- A cable is rolled once. clamp filter (ferrite core) (Part No. 1-543-793-41) 20mm A cable is rolled once. -
Page 13: Test Mode
MZ-NH900 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. •... - Page 14 MZ-NH900 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). Version display →...
- Page 15 MZ-NH900 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.
- Page 16 MZ-NH900 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.
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Page 17: Electrical Adjustments
MZ-NH900 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: 1. In the test mode (Display Check mode), press the [VOL+] key release the test mode. - Page 18 MZ-NH900 3-4-2. PwrAdj adjustments ItemNo. Display Specification value Measuring point Repeat the following procedures and adjust all contents of “table 3- 211 AD ** 2211 2.05 V + 0.02 V CL8029 4-1. PwrAdj Specifications”. 2.25 V ± 0.01 V 212 AD ** 2212 CL8029 213 AD **...
- Page 19 MZ-NH900 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: key to display as follows. > 1. Connect the digital voltmeter to CL431 (BATT+) and CL433 (GND).
- Page 20 MZ-NH900 3-6. Laser Power Check Example of Calculation: Procedure: Result 1. In the test mode (Display Check mode), press the [VOL+] key Item No. Parameter Decimal Hexadecimal to enter the Manual mode. 0211 Pr_nominal 2.50 mW 2. Open the lid and press the key continuously until the −0.3 %/°C 0212...
- Page 21 MZ-NH900 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”...
- Page 22 MZ-NH900 MEMO...
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Page 23: Diagrams
MZ-NH900 SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM – MD SERVO Section – OVER WRITE HEAD DRIVE IC601 (1/2) HR601 (Page 25) OVER WRITE OVER 69 HBB HEAD DRIVE WRITE 78 HA Q601, 602 HEAD 70 HAB EFM_CLK LATCH M703 OUTA RF AMP, FOCUS/TRACKING ERROR AMP OVER WRITE IC501... -
Page 24: Block Diagram -Audio Section
MZ-NH900 6-2. BLOCK DIAGRAM – AUDIO Section – SWITCHING DRIVER, MUTEON HEADPHONE AMP (Page 25) IC351 OUT_ BEEP 199 2 BEEP_IN BEEP2 DCLSOUTL DIN2 OUT2 J351 • SIGNAL PATH MUTING FROM IC801 (1/3) /LINE OUT Q351 (MD SERVO SECTION) : PLAYBACK DCLSOUTR DIN1 OUT1... -
Page 25: Block Diagram -Power Supply Section
MZ-NH900 6-3. BLOCK DIAGRAM – POWER SUPPLY Section – SDO0 SCK0 SDO0 (Page 23) DATA CLK 63 SCK0 (Page 24) XWK1, XWK2, XWK4 XWK4 (Page 24) XWK4 SLEEP XWK2 XWK2 4 STRB XRST2 XRST2 XWK1 WAKE UP SWITCH XWK1 XRST1 Q906 (Page 24) RESET SIGNAL... - Page 26 MZ-NH900 • Note For Printed Wiring Boards and Schematic Diagrams • Waveforms Note on Printed Wiring Board: Note on Schematic Diagram: IC501 8 (RFO) IC301 8 (BCLK) • X : parts extracted from the component side. • All capacitors are in µF unless otherwise noted. (p: pF) •...
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Page 27: Schematic Diagram -Main Section (1/9)
MZ-NH900 • See page 38 for IC Block Diagrams. 6-4. SCHEMATIC DIAGRAM – MAIN Section (1/9) – (1/9) XRST_MTR_DRV XRST_MTR_DRV SLD_CON_W C714 SLD_CON_W SLD_CON_V SLD_CON_V SLD_CON_U SLD_CON_U SLD_PWM L701 L702 SLD_PWM SLD_MON_U SLD_MON_U SLD_MON_V SLD_MON_V SLD_MON_W SLD_MON_W SLD_CON_W R706 2.2k R707 2.2k R708... -
Page 28: Schematic Diagram -Main Section (2/9)
MZ-NH900 • See page 38 for IC Block Diagrams. 6-5. SCHEMATIC DIAGRAM – MAIN Section (2/9) – (2/9) XCS_REC_DRV SUSPEND C673 SUSPEND REG_DACVREFH USB_HOLD USB_HOLD RECP RECP D609 C668 EFM_CLK MA2Z748001S0 EFM_CLK C669 C643 VOLTAGE DETECT XCS_REC_DRV IC606 +1.2V REGULATOR XCS_REC_DRV XC61CN1702NR VBUS_DET... -
Page 29: Schematic Diagram -Main Section (3/9)
MZ-NH900 • See page 26 for Waveforms. • See page 38 for IC Block Diagrams. 6-6. SCHEMATIC DIAGRAM – MAIN Section (3/9) – (Page 27) (3/9) C553 C554 6.3V C523 C524 C530 0.01 (Page 28) R505 +3V REGULATOR L503 IC502 C561 10µH R1180Q301B... -
Page 30: Schematic Diagram -Main Section (4/9)
MZ-NH900 • See page 38 for IC Block Diagrams. 6-7. SCHEMATIC DIAGRAM – MAIN Section (4/9) – (4/9) (Page 34) Q451 RTQ035P02TR TERRA_V (Page 28) MINUS_MON GND_SW C453 VBUS_MON 0.047 Q451,452 (BATTERY CASE) VOLTAGE LIMITER DRY BATTERY SIZE"AA" CHG_TYPE2 R467 R463 R464 (IEC DESIGNATION R6) -
Page 31: Schematic Diagram -Main Section (5/9)
MZ-NH900 • See page 38 for IC Block Diagrams. 6-8. SCHEMATIC DIAGRAM – MAIN Section (5/9) – (Page 28) (5/9) (Page 29) L903 10µH C927 C915 100p C9001 6.3V 0.01 C922 C923 C958 C928 C929 R968 R969 100p 1000p 470k 2.2k 6.3V 6.3V... -
Page 32: Schematic Diagram -Main Section (6/9)
MZ-NH900 • See page 38 for IC Block Diagrams. 6-9. SCHEMATIC DIAGRAM – MAIN Section (6/9) – (Page 28) (6/9) (Page 30) (Page 34) R361 R360 D_VREG0 D_VREG0 D_VCONT_PWM D_VCONT_PWM DCLSOUTR Q904 DCLSOUTR SI1410EDH-T1 DCLSOUTL DCLSOUTL BEEP BEEP D_ENVG D_ENVG D_ENREG D_ENREG D_EN2... -
Page 33: Schematic Diagram -Main Section (7/9)
MZ-NH900 • See page 38 for IC Block Diagrams. 6-10. SCHEMATIC DIAGRAM – MAIN Section (7/9) – (7/9) R478 4.7k R476 R477 4.7k 4.7k CN471 R486 DVDD R471 JOG_B XRST2 JOG_B R472 JOG_A JOG_A SET_KEY_2 SET_KEY_2 SET_KEY_1 SET_KEY_1 R473 REC_KEY T_MARK XCS_LCD D471... -
Page 34: Schematic Diagram -Main Section (8/9)
MZ-NH900 • See page 26 for Waveforms. • See page 42 for IC Pin Function Description. 6-11. SCHEMATIC DIAGRAM – MAIN Section (8/9) – (8/9) C861 POEN_CLOSE_SW WK_DET (Page 33) R868 R876 SDO0 SDO0 SCK0 Q803 R827 SCK0 2SC4738F-Y/GR OPT_DET (TPL3) R880 R842... -
Page 35: Schematic Diagram -Main Section (9/9)
MZ-NH900 • See page 26 for Waveforms. • See page 38 for IC Block Diagrams. 6-12. SCHEMATIC DIAGRAM – MAIN Section (9/9) – (9/9) D302 MAZS068008SO +1.2V REGULATOR R308 IC302 Q301 XC6219B212MR 2SA2018TL C327 R304 B+ SWITCH 100k R301 C303 D301 C320 XOPT_CTL... -
Page 36: Printed Wiring Board -Main Section (1/2)
MZ-NH900 6-13. PRINTED WIRING BOARD – MAIN Section (1/2) – : Uses unleaded solder. • Semiconductor Location Ref. No. Location D152 D252 D301 S890 D302 D303 S890 (PROTECT DETECT) D304 D352 S891 D438 S891 Hi-MD D439 PROTECT DETECT D440 D441 D458 CN451 D611... -
Page 37: Printed Wiring Board -Main Section (2/2)
MZ-NH900 6-14. PRINTED WIRING BOARD – MAIN Section (2/2) – : Uses unleaded solder. • Semiconductor Location Ref. No. Location D401 MAIN BOARD (CONDUCTOR SIDE) D435 D436 D442 D450 S892 (HALF LOCK) M702 D457 (SLED) D471 D473 D601 C457 M703 D602 NICKEL METAL HYDRIDE OVER WRITE... - Page 38 MZ-NH900 • IC Block Diagrams IC351 CXD9811K IC301 AK5356VN-L 21 20 CHARGE BEEP PUMP MICR 22 LINE AMP RESET 14 VDDO2 (P-N) LEVEL SHIFTER MVDD 23 DRIVER 13 CFB HEADPHONE AMP CONTROL (N-N) MVSS 24 12 VREF REGISTER CCLK 11 VCONT INTERFACE CDTI MVCM...
- Page 39 MZ-NH900 IC601 SC901585VAR2 CHARGE PUMP NC A12 56 LATCH EFM BOTTOM LVDT WAKE 55 XWKO PRE DRIVER HOLD OUT CONTROL HOLD VBUS 54 VBUS LOGIC EFM TOP RST OUT BUFFER PRE DRIVER 53 WAKEC PVBUS PVBUS VBUS 52 V33UO CRST LVDT 51 VBUS DET DVDD IN...
- Page 40 MZ-NH900 IC602 R1160N121B-TR-FA REGULATOR VOUT CURRENT LIMIT IC701 BD6607KN 62 61 48 WI2 DECODER STANDBY DECODER PRE DRIVE PRE DRIVE PGNDW1 47 PGNDW2 46 WO2 45 ST2 VMVW1 44 VMVW2 43 VO2 42 VO2 PGNDUV1 41 PGNDUV2 40 UO2 39 UO2 38 VMU2 VMU1 VMR1...
- Page 41 MZ-NH900 IC891 AK6514CF-E2 IC902 XC62HR5502MR VOUT HIGH VOLTAGE GENERATOR CURRENT LIMIT MEMORY ARRAY – XHOLD CONTROL LOGIC OUTPUT REFERENCE CONTROL VOLTAGE Y SELECT & SENSE AMP SERIAL-PARALLEL CONVERTER IC901 SC901584EPR2 36 35 RESET 2 SERIAL RST2 PASS POWER STEP REGULATOR 3 SWITCH 2 UP-DOWN REGC2...
- Page 42 MZ-NH900 • IC Pin Function Description IC801 CXD2681-223GG (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR) Pin No. Pin Name Description DVDD1_0 — Power supply terminal DVSS1_0 — Ground terminal DVDD1_1 — Power supply terminal DVSS1_1 — Ground terminal DVDD1_2 — Power supply terminal DVSS1_2 —...
- Page 43 MZ-NH900 Pin No. Pin Name Description DAVDD — Power supply terminal (for D/A converter) DVDD25LPF — Power supply terminal (for D/A converter) DAVSS — Ground terminal (for D/A converter) OSCVDD — Power supply terminal (for 22 MHz OSC) USBOSCVDD — Power supply terminal (for the USB 48 MHz OSC) TSMVDD —...
- Page 44 MZ-NH900 Pin No. Pin Name Description Phase comparison output terminal for the playback EFM system master PLL FILI Filter input terminal for the playback EFM system master PLL FILO Filter output terminal for the playback EFM system master PLL CLTV Internal VCO control voltage input terminal for the playback EFM system master PLL PEAK Peak hold signal input of the light amount signal (RF/ABCD) the RF amplifier...
- Page 45 MZ-NH900 Pin No. Pin Name Description Reference voltage terminal connected to the capacitor (for the built-in D/A converter L-CH) VREFL Not used AOUTL Built-in D/A converter L-CH signal output Not used AOUTR Built-in D/A converter R-CH signal output Not used Reference voltage terminal connected to the capacitor (for the built-in D/A converter R-CH) VREFR Not used...
- Page 46 MZ-NH900 Pin No. Pin Name Description USB_WAKE System wake up signal input by USB connect A7CAL_SW Current sense amplifier input, and short switch control output terminal Not used Serial data input from the EEPROM Serial data output to the EEPROM SCK0 Serial clock output to the EEPROM XGUM_ON...
- Page 47 MZ-NH900 Pin No. Pin Name Description CC_CTL Constant current circuit control signal output terminal /VI_CTL XRST_MTR Reset signal output to the motor driver _DRV XCS_NV Chip select signal output to the EEPROM CHG_PWM Charge current or voltage control signal output terminal IAMP_CAL Offset signal output of current sense amplifier Not used —...
- Page 48 MZ-NH900 Pin No. Pin Name Description SCS3 Chip select signal output for LAM microcomputer communication Not used SCS4 Chip select signal output for ATRAC3 plus encoder communication Not used HI_Z_SLD Standby signal output terminal for the sled motor HI_Z_SPDL Standby signal output terminal for the spindle motor 291 to SET_CODE0 to Setting terminal for the destination...
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Page 49: Exploded Views
MZ-NH900 SECTION 7 EXPLODED VIEWS NOTE: • Items marked “*” are not stocked since they • -XX and -X mean standardized parts, so they The components identified by mark 0 or dotted line with mark 0 are may have some difference from the original are seldom required for routine service. -
Page 50: Upper Panel Section
MZ-NH900 7-2. UPPER PANEL SECTION not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-2023-708-1 PANEL (S) SUB ASSY, UPPER (SILVER) 3-266-492-01 KNOB (ROTARY) 3-266-192-01 ESCUTCHEON (5 DIRECTION) X-2023-709-1 PANEL (B) SUB ASSY, UPPER (BLACK) 3-237-092-01 KNOB (HOLD) (VOL +. -
Page 51: Chassis Section
MZ-NH900 7-3. CHASSIS SECTION mechanism deck section Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-266-499-01 OPEN SLIDER 3-245-901-01 TERMINAL (SUM 3) 3-245-889-01 SPRING (LIMITTER), COMPRESSION 3-245-902-01 COVER, INSULATING 3-266-534-01 SPRING (LOCK), TENSION X-2023-375-1 MAIN BOARD, COMPLETE (for SERVICE) 3-266-506-01 CASE, BATTERY (AEP, UK, EE) X-3385-106-1 CHASSIS ASSY, SET... -
Page 52: Mechanism Deck Section (Mt-Mznh900-181)
MZ-NH900 7-4. MECHANISM DECK SECTION (MT-MZNH900-181) not supplied HR601 (over write head) M702 M703 (including HR601 (over write head) ) M701 The components identified by Les composants identifiés par une mark 0 or dotted line with marque 0 sont critiques pour la mark 0 are critical for safety. -
Page 53: Electrical Parts List
MZ-NH900 SECTION 8 ELECTRICAL PARTS LIST MAIN NOTE: • Items marked “*” are not stocked since they • Due to standardization, replacements in the The components identified by mark 0 or dotted line with mark 0 are parts list may be different from the parts are seldom required for routine service. - Page 54 MZ-NH900 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C565 1-125-777-11 CERAMIC CHIP 0.1uF C429 1-125-777-11 CERAMIC CHIP 0.1uF C566 1-125-777-11 CERAMIC CHIP 0.1uF C434 1-125-777-11 CERAMIC CHIP 0.1uF C567 1-135-210-11 TANTALUM CHIP 4.7uF C435 1-125-777-11 CERAMIC CHIP 0.1uF C436...
- Page 55 MZ-NH900 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C895 1-125-777-11 CERAMIC CHIP 0.1uF C705 1-164-943-11 CERAMIC CHIP 0.01uF C901 1-125-777-11 CERAMIC CHIP 0.1uF C706 1-107-819-11 CERAMIC CHIP 0.022uF C902 1-125-777-11 CERAMIC CHIP 0.1uF C707 1-164-943-11 CERAMIC CHIP 0.01uF C708...
- Page 56 MZ-NH900 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D440 6-500-483-01 DIODE MA22D2800LS0 < IC > D441 8-719-056-54 DIODE MAZS068008SO D442 8-719-056-54 DIODE MAZS068008SO IC301 6-702-894-01 IC AK5356VN-L IC302 6-706-528-01 IC XC6219B212MR D450 6-500-483-01 DIODE MA22D2800LS0 IC351 6-704-998-01 IC CXD9811K (TE4) D457...
- Page 57 MZ-NH900 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark L805 1-216-295-00 SHORT CHIP Q905 8-729-030-46 TRANSISTOR XP4314-TX Q906 8-729-427-74 TRANSISTOR XP4601 L806 1-400-342-21 INDUCTOR 10uH L881 1-414-404-41 INDUCTOR 100uH < RESISTOR > L901 1-456-710-21 INDUCTOR 100uH L903 1-400-397-11 INDUCTOR...
- Page 58 MZ-NH900 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R414 1-218-965-11 RES-CHIP 1/16W R513 1-218-965-11 RES-CHIP 1/16W R415 1-218-961-11 RES-CHIP 4.7K 1/16W R514 1-218-973-11 RES-CHIP 1/16W R417 1-218-989-11 RES-CHIP 1/16W R418 1-218-977-11 RES-CHIP 100K 1/16W R515 1-218-965-11 RES-CHIP 1/16W...
- Page 59 MZ-NH900 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R670 1-218-990-11 SHORT CHIP R856 1-218-990-11 SHORT CHIP R671 1-218-990-11 SHORT CHIP R857 1-218-985-11 RES-CHIP 470K 1/16W R673 1-218-990-11 SHORT CHIP R675 1-220-804-11 RES-CHIP 2.2M 1/16W R858 1-218-990-11 SHORT CHIP R677...
- Page 60 MZ-NH900 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R935 1-208-935-11 METAL CHIP 100K 0.5% 1/16W ACCESSORIES R936 1-208-927-11 METAL CHIP 0.5% 1/16W *********** R937 1-208-715-11 METAL CHIP 0.5% 1/16W R938 1-208-927-11 METAL CHIP 0.5% 1/16W 1-543-793-41 FILTER, CLAMP (FERRITE CORE) R939...
- Page 61 MZ-NH900 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 0 501 1-477-965-21 ADAPTOR, AC (AC-ES3010K) (JE) AC power adaptor (1) Battery charging stand (1) 0 501 1-478-423-31 ADAPTOR, AC (AC-ES3010K) (KR) 0 501 1-478-424-31 ADAPTOR, AC (AC-ES3010K) (CH) 0 501 1-478-425-51 ADAPTOR, AC (AC-ES3010K) (AEP, EE, E18) 0 501...
- Page 62 MZ-NH900 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2004.08 2004.09 Change of Part No.