Sony NHF800 User Manual

MZ-NH700

NHF800

SERVICE MANUAL

Ver 1.1 2004.09

Photo: MZ-NHF800

US and foreign patents licensed from Dolby Laboratories Licensing Corporation.

• SonicStage and SonicStage logo are trademarks or registered trademarks of Sony Corporation.

• MD Simple Burner, OpenMG, “Magic Gate”, “MagicGate Memory Stick”, “Memory Stick”,

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.

SPECIFICATIONS

MD recorder

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)

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:

ATRA C ATRA C3 −− 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

MIC: stereo mini-jack

(minimum input level 0.13 mV)

LINE IN (OPT)

stereo mini-jack for analog input (minimum input level 49 mV) optical (digital) mini-jac k for optical (digital) input

Outputs

i2): stereo mini-jack (dedicated remote control jack)

Maximum output (DC)

Headphones:

5 mW + 5 mW (24 Ω) (USA model) 3 mW + 3 mW (16 Ω) (European models) 5 mW + 5 mW (16 Ω) (Other models)

Radio (MZ-NHF800)

Frequency range

USA model:

FM: 87.5 - 108.0 MHz AM: 530 - 1,710 kHz (10 kHz step)

TV: 2 - 13 CH WEA THER : 1 - 7 CH

Canadian model:

FM: 87.5 - 108.0 MHz AM: 530 - 1,710 kHz (10 kHz step)

Models for Europe and China:

FM: 87.5 - 108.0 MHz AM: 531 - 1,602 kHz

Other models:

FM: 87.5 - 108.0 MHz AM: 530 - 1,710 kHz

531 - 1,710 kHz (9 kHz step)

US Model

MZ-NHF800

Canadian Model

AEP Model

UK Model

E Model

Australian Model

MZ-NH700/NHF800

Chinese Model

Tourist Model

MZ-NH700

Model Name Using Similar Mechanism NEW MD Mechanism Type MT-MZNH900-181 Optical Pick-up Name ABX-U

Antenna

FM/TV/WEATHER:

Headphones/earphones cord antenna

AM:

Built-in ferrite bar antenna

General

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) 230 V AC, 50/60 Hz (Models for continental Europe and Chile) 240 V AC, 50 Hz (Model for Australia) 230 V AC, 50 Hz (Models for U.K. and Hong Kong) 115 V/230 V AC, 50/60 Hz (Other models in MZ-NHF800) 100 - 240 V AC, 50/60 Hz (Other models in MZ-NH700)

The recorder:

Nickel metal hydride rechargeable battery NH-7WMAA 1.2V 700 mAh (MIN) Ni-MH LR6 (size AA) alkaline battery AC power ad aptor DC 3V

Operating temperature

+5° C (+41°F) to + 3 5° C (+95°F)

Dimensions

Approx. 81.0 × 29.2 × 78.9 mm (w/h/d)

/4 × 113/16 × 31/8 in.) (excluding projecting parts and controls)

Mass

Approx. 103 g (3.7 oz) (the recorder only) Approx. 122 g (4.4 oz) (including the rechargeable battery)

IN (OPT) jack is used to connect either a digital

The LINE

(optical) cable or a line (analog) cable.

Measured in accordance with JEIAT.

– Continued on next page –

PORTABLE MINIDISC RECEIVER

9-879-056-02

Sony Corporation

Personal Audio Company Published by Sony Engineering Corporation

MZ-NH700/NHF800

Battery life

When recording continuously Hi-MD mode (When using a 1GB Hi-MD disc)

Batteries

NH-7WMAA

LR6

Measured in accordance with the JE ITA (Japan Electronics and Information Technology Industries 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)

Hi-MD mode (When using a 60/74/80-minute standard disc)

Batteries

NH-7WMAA LR6

MD mode

Batteries

NH-7WMAA LR6

When playing continuously Hi-MD mode (When using a 1GB Hi-MD disc)

Batteries

NH-7WMAA LR6

Hi-MD mode (When using a 60/74/80-minute standard disc)

Batteries

NH-7WMAA LR6

MD mode

Batteries SP

NH-7WMAA LR6

When using the radio (MZ-NHF800)

Batteries FM/AM TV/Wb

NH-7WMAA LR6

USA model only.

On power sources

•

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.

(Unit: approx.hours)(JEITA3))

Polarity of the plug

Linear

Hi-SP Hi-LP

PCM

34.55

2.5 3.5 4.5

(Unit: approx.hours)(JEITA)

Linear

Hi-SP Hi-LP

PCM

2.5 4.5 5.5

589.5

(Unit: approx.hours)(JEITA)

LP2

Stereo

4.5 6 6.5

7.5 9.5 11

(Unit: approx.hours)(JEITA)

Linear PCM

4.5 7.5 9 11 18.5 21.5

(Unit: approx.hours)(JEITA)

Linear PCM

47.59

9.5 17 20

(Unit: approx.hours)(JEITA)

Stereo

7.5 9 10

20.5 24 26

(Unit: approx.hours)(JEITA)

7.5 7

18.5 17

LP4

Stereo

Hi-SP Hi-LP

LP2

LP4

Stereo

(weather)

CAUTION

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

Notes on chip component replacement

• Never reuse 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 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

Supplied accessories

AC power adaptor (1) Remote control (1) Headphones (for USA model) (1) Earphones (except USA model) (1) Dedicated USB cable (1) NH-7WMAA Nickel metal hydride rechargeable battery (1) CD-ROM (SonicStage/MD Simple Burner (1)* Battery carrying case (1) Carrying pouch (except USA model) Optical cable (MZ-NH700) (except Canadian andMexican Models) (1) Clamp filter (2)

*Do not play a CD-ROM on an audio CD player.

Design and specifications are subject to change without notice.

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 PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQ UE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU D ANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

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....................................................... 8

3-5. Mechanism Deck Section (MT-MZNH900-181),

MD Standard Pin ............................................................. 8

3-6. Set Chassis Assy .............................................................. 9

3-7. Gear (BSA), Gear (SB) ................................................... 9

3-8. Op Service Assy .............................................................. 10

3-9. DC Motor SSM18D/C-NP (Spindle) (M701),

DC Motor (Sled) (M702), DC Motor Unit

(Over Write Head Up/Down) (M703) ............................. 10

3-10. Holder Assy ..................................................................... 11

3-11. Position of Ferrite Core ................................................... 11

MZ-NH700/NHF800

Ver 1.1

4. TEST MODE.............................................................. 12

5. ELECTRICAL ADJUSTMENTS ......................... 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. Schematic 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 –MAIN 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. Case (Lower) Section ...................................................... 47

7-2. Case (Upper) Section....................................................... 48

7-3. Chassis Section ................................................................ 49

7-4. Mechanism Deck Section (MT-MZNH900-181) ............ 50

6. ELECTRICAL PARTS LIST................................ 51

MZ-NH700/NHF800

SECTION 1

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic 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

The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the leadfree 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 viscou-s (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.

Providing the required system environment

System requirements

The following system environment is required in order to use the SonicStage/MD Simple Burner software for the MD Walkman.

Computer IBM PC/AT or Compatible

Operating System

Display High Color (16bit) or higher, 800 × 600 dots or better (1024 × 768 do ts

Others • Internet access: for Web registration, EMD services and CDDB

This software is not supported by the following environments:

•OSs other than the indicated above

•Personally constructed PCs or operating systems

•An environment that is an upgrade of the original manufacturer-installed operating system

•Multi-boot environment

•Multi-monitor environment

•Macintosh

Notes

•We do not ensure trouble-fre e ope r a tion on all computers that satisfy the sy ste m requirements.

•The NTFS format of Windows XP/Windows 2000 Professional can be used only with the standard

(factory) settings.

•We do not ensure trouble-free opera tion of the system suspend, sleep, or hibernation fu nc tion on all computers.

•For Windows 2000 Professional users, in sta ll Service Pack 3 or later version before using the software.

• CPU: Pentium II 400 MHz or higher (Pentium III 450 MHz or higher is recommended.)

• Hard disk drive space: 200 MB or more (1.5 GB or more is recommended) (The am ount space will vary accord ing to Windows version and the number of music files st ored on the hard disk.)

• RAM: 64 MB or more (128 MB or more is recommended)

Others

• CD drive (capable of digital playback by WDM)

• Sound Board

• USB port (supports USB (previously USB 1.1))

Factory in st alled: Windows XP Media Center Edit ion 20 04/Windows XP Media Center Edition/Windows XP Professional/Windows XP Home Edition/ Windows 2000 Professional/Windows Millennium Edition/Windows 98 Second Edition

or better is recommended)

• Window s Media Player (version 7.0 or higher) installed for playing WMA files

OPERATION CHECK WHEN THE LID IS OPEN

In making an operation check with the MAIN Board removed from the set, short the SL894 (OPEN/CLOSE) of the MAIN Board with the solder before starting the operation check.

Note: Be sure to remove the solder used for shortcircuit after the repaire

completed.

– MAIN Board (Conductor Side) –

SL894

(OPEN/CLOSE)

Looking at controls

123456

The headphones/earphones with a remote control (MZ-NHF800)

A VOL +, − buttons

Press to adjust the volume.

B Jog lever (NX/ENT, ., > •

BAND, TUNE −, TUNE +) When using an MiniDisc

When using the radio

C Display window D x (stop) button E (group) +, −

F RADIO ON/OFF button

Press to turn on or off the radi o.

G Clip H HOLD switch

To p revent the buttons from being accidentally operated when you carry the recorder, use this function.

I DISPLAY button J P-MODE/ button K SOUND button

B C

D E

F G

Operation Function

Press

/ENT play, pause, en ter

Slide towards

find the beginning of the previous track, rewind

Slide towards

find the beginning of the next track, fast forward

Operation Function

Press BAND

select a band

Slide towards TUNE −

tune backwards

Press towards TUNE +

tune forward

The display window of the remote control (MZ-NHF800)

A Disc indication B PRESET indication C Character information displ ay D Sub play mode/Repeat play

indications

E SND (sound) an d SU R ( surround)

indications

F Battery level indication G Track number/Band/Preset number

display

H Main play mode indications

12 3 4

876

The recorder

5 6

MZ-NH700/NHF800

SECTION 2

GENERAL

qs qd

This section is extracted from instruction manual.

A Display window B T MARK/REC (+N) button C Jog dial

D 5-way control key

Operation Function

Press NENT Press towards . find the beginning

Press towards > find the beginning

Press towards VOL + VOL −.

There are tactile dots b eside the NENT and

The display window of the recorder

A Character information display

Displays the disc and track names, date, error messages, track numbers, etc.

B SYNC (synchro-recording) i ndi cat ion C Hi-MD/MD indication

“Hi-MD” lights up when the operation mode of the recorder is in Hi-MD mode and “MD” lights up when the operation mode is in MD mode.

D REC indication

Lights up during recording or file transfers from the computer. When flashing, the recorder is in record standby mode.

VOL +

play, enter

of the previous track, rewind

of the next track, fast forward

volume

buttons.

E DC IN 3V jack F X (pause) button G x (stop) • CANCEL/CHG button H OPEN switch I GROUP button J •NAVI/ MENU button

Press lightly to go to the NAVI (navigation) setting mode. Press for 2 seconds or more to go to MENU setting mode.

K USB cable connecting jack L LINE IN (OPT) jack M MIC (PLUG IN POWER) jack

There is a tactile dot beside the MIC (PLUG IN POWER) jack.

N HOLD switch

Slide the swi tch in the direction of the arrow to disabl e the buttons on the recorder. To prevent the buttons from being accident al ly op er at ed wh en you carry the recorder, use this function.

O i (headphones/earphones) jack

78 9

E Battery indication

Shows the approximate remaining battery power. If the battery is weak, the indication becomes empty and starts flashing.

F Disc indication

Shows that the disc is rotating for recording or playing.

G Track mode (PCM, Hi-SP, Hi-LP, SP,

LP2, LP4, MONO) indication

H Sub pla y m ode/Repeat play

indications Shows the selected Sub play mode (single-track play, shuffle play, etc.) or Repeat play.

I Main play mode indications

Shows the selected main play mode (group play, bookmark play, etc.).

The headphones/earphones with a remote control (MZ-NH700)

A Clip B HOLD switch

To p revent the buttons from being accidentally operated when you carry the recorder, use this function.

C (group) +, − buttons D Vol u me control (VOL +, −)

Turn to adjust the volume.

E NX (play, pause) button

F x (stop) button G ., > buttons

Operation Function

Press . find the beginning of

Press > find the beginning of

the previous track, rewind

the next track, fast forward

MZ-NH700/NHF800

Ver 1.1

• 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)

SECTION 3

DISASSEMBLY

3-3. MAIN BOARD

(Page 7)

3-5. MECHANISM DECK SECTION (MT-MZNH900-181),

MD STANDARD PIN (Page 8)

3-7. GEAR (BSA), GEAR (SB)

(Page 9)

3-8. OP SERVICE ASSY

(Page 10)

3-9. DC MOTOR SSM18D/C-NP (SPINDLE) (M701),

DC MOTOR (SLED) (M702), DC MOTOR UNIT (OVER WRITE HEAD UP/DOWN) (M703) (Page 10)

3-11. POSITION OF FERRITE CORE

(Page 11)

3-4. CASE (UPPER) SECTION

(Page 8)

3-6. SET CHASSIS ASSY

(Page 9)

3-10. HOLDER ASSY

(Page 11)

3-2. CASE (LOWER) SECTION

MZ-NH700/NHF800

two screws (M1.4)

3-3. MAIN BOARD

motor flexible board (CN701)

Remove the case (lower) section in the direction of the arrow.

LCD module flexible board (CN471)

OP flexible board (CN501)

MAIN board

screw (M1.4)

three screws (M1.4)

Remove two solders of over write head flexible board.

MZ-NH700/NHF800

3-4. CASE (UPPER) SECTION

case (upper) section

boss

herical torsion spring (L)

LCD module flexible boaed (CN471)

two step screws

Open the case (upper) section.

3-5. MECHANISM DECK SECTION (MT-MZNH900-181), MD STANDARD PIN

two step screws (MD)

MD standard pin

mechanism deck section (MT-MZNH900-181)

3-6. SET CHASSIS ASSY

extension spring (R)

two screws

MZ-NH700/NHF800

torsion coil spring (R)

set chassis assy

compression coil spring (open)

3-7. GEAR (BSA), GEAR (SB)

gear (SB)

open slider

self tap screw

thrust retainer spring

washer (0.8-2.5)

gear (BSA)

battery case

MZ-NH700/NHF800

3-8. OP SERVICE ASSY

Lead screw block assy is turned and it removes from OP service assy.

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)

two screws (M1.4)

DC motor (sled)

Remove two solders of flexible board.

self tap screw

DC motor unit (over write head up/down) (M703)

(M702)

Remove four solders of flexible board.

three self tap screws

DC motor SSM18D/C-NP (spindle) (M701)

motor base assy

3-10. HOLDER ASSY

Remove the holder assy to the direction of the arrow

Open the holder assy.

boss

MZ-NH700/NHF800

Ver 1.1

boss

3-11. POSITION OF FERRITE CORE

-REMOTE CONTROL UNIT-

Remote control unit (RM-MC21, RM-MC39LT, RM-MC40ELK)

-AC ADAPTOR-

(AC-ES3010K)

A cable is rolled twice.

(RM-MC21, RM-MC40ELK)

(RM-MC39LT)

A cable is rolled once.