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SERVICE MANUAL
MZ-N10
Ver 1.2 2003. 02
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
Tourist Model
PORTABLE MINIDISC RECORDER
9-874-284-03
Sony Corporation
2003B1600-1
Personal Audio Company
C
2003.02
Published by Sony Engineering Corporation
­ Continued on next page ­
US and foreign patents licensed from Dolby
Laboratories.
Model Name Using Similar Mechanism
NEW
Mechanism Type
MT-MZN10-181
Optical Pick-up Name
ABX-1R
SPECIFICATIONS
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength:
= 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 MDW-80)
Maximum 160 min. in monaural
Maximum 320 min. in LP4 stereo
Revolutions
350 rpm to 3,600 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
Coding
ATRAC (Adaptive TRansform Acoustic
Coding)
ATRAC3 -- LP2/LP4
Modulation system
EFM (Eight to Fourteen Modulation)
Frequency response
20 to 20,000 Hz
± 3 dB
When recording
(Unit: approx.hours)(JEITA4))
Batteries
SP
Stereo
LP2
Stereo
LP4
Stereo
Built-in
rechargeable
battery5)
8.5
11
14
LR6 (SG)
Sony alkaline
dry battery6)
7.5
10
11.5
Built-in
rechargeable
battery5)
+ One LR6
(SG)6)
15
20
26.5
When playing
(Unit: approx.hours)(JEITA)
Batteries
SP
Stereo
LP2
Stereo
LP4
Stereo
Built-in
rechargeable
battery
17
20
24
LR6 (SG)
Sony alkaline
dry battery
27
32
36
Built-in
rechargeable
battery + One
LR6 (SG)
42
52
58
Battery operation time3)
Inputs1)
MIC: stereo mini-jack
(minimum input level 0.25 mV)
Line in: stereo mini-jack for analog input
(minimum input level 49 mV)
optical (digital) mini-jack for optical
(digital) input
Outputs
i/LINE OUT2): stereo mini-jack (dedicated
remote control jack)/194 mV (10 k
)
Maximum output (DC)2)
Headphones:
2.0 mW + 2.0 mW (16
) (European
models)
5 mW + 5 mW (16
) (Other models)
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)
230 - V AC, 50/60 Hz (Models for continental
Europe, Singapore and Thailand)
240 V AC, 50 Hz (Model for Australia)
220 V AC, 50 Hz (Model for China)
230 - V AC, 50 Hz (Models for U.K. and
Hong Kong)
100 - 240 V AC, 50/60 Hz (Other models)
The recorder:
Lithium-ion rechargeable battery (Built-in)
LIP-3WMB, 3.7 V, 340 mAh, Li-ion
LR6 (size AA) alkaline battery
USB cradle:
AC power adaptor DC 6V
SILVER MODEL


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2
MZ-N10
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, nikel metal hydride rechargeable battery,
LR6 (SG) battery, or car 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
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.
Optical cable (1)
CD-ROM (SonicStage Ver. 1.5) (1)*
Carrying pouch/carrying case with a belt clip (except USA model) (1)
Recordable MD (USA and Canada models only) (1)
Do not play a CD-ROM on an audio CD player.
Headphones/earphones with a remote control (1)
Dimensions
Approx. 78.5
× 73.3 × 13.8 mm (w/h/d)
(31/8
× 3 × 9/16 in.) (excluding projecting parts
and controls)
Mass
Approx. 84 g (3 oz) (including the built-in
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.
US and foreign patents licensed from Dolby
Laboratories.
Design and specifications are subject to change
without notice.
4) Measured in accordance with the JEITA
(Japan Electronics and Information
Technology Industries Association) standard.
5) When using a 100% fully charged
built-in
lithiun-ion rechargeable battery.
6) When using a Sony LR6 (SG) "STAMINA"
alkaline dry battery (produced in Japan).
Supplied accessories
AC power adaptor (1)
USB cradle (1)
Dedicated USB cable (1)
Dry battery case (1)
· SonicStage, OpenMG and the OpenMG
logo, MagicGate, Memory Stick and the
MagicGate Memory Stick logo,
Memory Stick and the Memory Stick
logo, Net MD and the Net MD logo 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.
· TM and ® marks are omitted in this
manual.
Ver 1.2 2003.02
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES
SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT.
NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES
SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL
OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.


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3
MZ-N10
TABLE OF CONTENTS
1.
SERVICING NOTES ............................................... 4
2.
GENERAL ................................................................... 5
3.
DISASSEMBLY ......................................................... 6
3-1. Bottom Panel Section, Jog Dial Section .........................
7
3-2. Upper Panel Section ........................................................
7
3-3. MAIN Board Section ......................................................
8
3-4. MD Mechanism Deck (MT-MZN10-181),
Set Chassis ......................................................................
8
3-5. Gear (SA), Gear (SB) ......................................................
9
3-6. OP Service Assy (ABX-1R) ...........................................
9
3-7. DC Motor SSM21A (Sled) (M602),
DC Motor SSM18D (Spindle) (M601),
DC Motor Unit (Over Write Head Up/Down)
(M603) ............................................................................. 10
3-8. Holder Assy ..................................................................... 10
4.
TEST MODE .............................................................. 11
5.
ELECTRICAL ADJUSTMENTS ......................... 17
6.
DIAGRAMS
6-1. Block Diagram ................................................................ 37
6-2. Note for Printed Wiring Board and
Schematic Diagrams ....................................................... 38
6-3. Printed Wiring Board
­ MAIN Board (Side A) ­ ......................................... 39
­ MAIN Board (Side B) ­ ......................................... 40
6-4. Schematic Diagrams
­ MAIN Board (1/4) ­ ............................................... 41
­ MAIN Board (2/4) ­ ............................................... 42
­ MAIN Board (3/4) ­ ............................................... 43
­ MAIN Board (4/4) ­ ............................................... 44
6-5. IC Pin Function Description ........................................... 49
7.
EXPLODED VIEWS
7-1. Upper Panel Section ........................................................ 55
7-2. Bottom Panel Section ...................................................... 56
7-3. Chassis Section ............................................................... 57
7-4. MD Mechanism Deck Section (MT-MZN10-181) ........ 58
8.
ELECTRICAL PARTS LIST ............................... 59


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4
MZ-N10
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
(ABX-1R)
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.
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
(S803 on MAIN board) with a tape in advance.
· Handle the FLEXIBLE board (over write 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 (over write head) and the MAIN board with
the lead wires in advance.
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
upper panel assy
MAIN board
S803
tape
FLEXIBLE board
(over write head)
·Replacement of SN761058ZQL (IC501), CDX2678-202GA
(IC801) used in this set requires 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 17)
·This set requires the patch data in the nonvolatile memory
(IC851) to be rewritten using the application, when the MAIN
board was replaced. (See page 28)
System requirements
The following hardware and software are required in order to use the
SonicStage software for the Net MD.
This software is not supported by the following
environments:
· Macintosh
· Windows XP versions other than Home Edition or Professional
· Windows 2000 versions other than Professional
· Windows 98 versions other than Second Edition
· Windows NT
· Windows 95
· Personally constructed PCs or operating systems
· An environment that is an upgrade of the original manufacturer-installed
· Multi-boot environment
· Multi-monitor environment
Notes
· We do not ensure trouble-free operation on all computers that satisfy the
· We do not ensure trouble-free operation of the system suspend, sleep, or
hibernation function on all computers.
Computer IBM PC/AT or Compatible
·CPU: Pentium II 400 MHz or higher
(Pentium III 450 MHz or higher is recommended.)
·Hard disk drive space1): 120 MB or more
·
1)
Others
·CD-ROM drive (capable of digital playback by WDM)
·Sound Board
·
Operating
System
Factory installed:
Windows XP Home Edition/Windows XP Professional/
Windows Millennium Edition/Windows 2000 Professional/
Windows 98 Second Edition
Display
High Color (16bit) or greater, 800
× 480 dots or more
Others
· Internet access: for Web registration and EMD services
·
Note on hard disk drive space
120 MB or more free space on the hard disk drive is required. If your
computer does not have enough space, the software will not be properly
installed. The required free space differs according to the version of
your Windows OS, or the amount of audio files that you handle.
USB port (supports USB 2.0 Full Speed
(previously USB 1.1))
(800
× 600 dots or more is recommended)
Windows Media Player (version 7.0 or higher) installed for
playing WMA files
RAM: 64 MB or higher
(128 MB or higher is recommended)
operating system
system requirements.


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5
MZ-N10
SECTION 2
GENERAL
This section is extracted from
instruction manual.
Looking at controls
The recorder
A 5-way control key
B Charge lamp
C Display window
D OPEN switch
E GROUP button
G zREC (record) switch
H T MARK button
I END SEARCH button
J X button
K x button
L Handstrap hole
Use the hole to attach your own strap.
M LINE IN (OPT) jack
N MIC (PLUG IN POWER) jack
There is a tactile dot beside the MIC
(PLUG IN POWER) jack.
O i (headphones/earphones)/LINE
OUT jack
P USB cradle connecting jack
1
2
3
6
5
4
7
qj
qh
qd
qs
qa
qf
qg
9
q;
8
qk
ql
Operation
Function
Press N 1)
1) The N and VOL + button has a tactile
dot.
play
Press towards .
rewind
Press towards >
fast forward
Press towards
VOL+, ­.
volume
S BUILT-IN BATTERY switch
Slide the switch to ON when using
the recorder for the first time, and
keep it ON thereafter (it is factory
set to OFF).
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) indication
C REC indication
Lights up while recording. When
flashing, the recorder is in record
standby mode.
D Melody timer indication
E Disc indication
Shows that the disc is rotating for
recording or playing.
F Bookmark indication
Lights up when playing a bookmarked
track.
G Level meter
H Group indication
I Play mode indication
Shows the play mode (shuffle play,
program play, repeat play, etc.) of the
MD.
J Battery indication
Shows the approximate remaining
battery charge. If the built-in
rechargeable battery is weak, the
indication becomes empty and starts
flashing. The recorder will first draw
power from the built-in rechargeable
battery, even if a dry battery is
inserted in the dry battery case. It
switches automatically to the dry
battery when the built-in rechargeable
battery becomes drained. While the
recorder is using the power from the
dry battery, the frame around the
indication will begin slowly flashing.
K LP2, LP4, MONO (monaural)
indication
1
4
2
5
6
qa
9
q;
8
7
3
The headphones/earphones with a remote control
A Volume control (VOL+, ­)
Turn to adjust the volume.
B x (stop) button
C Jog lever (NX/ENT, ., >)
NX/ENT (to press): play, pause,
enter
.(to slide towards): REW
> (to slide towards): FF
D Display window
E
(group) +, ­
F Clip
G HOLD switch
Slide the switch in the direction of the
arrow (a yellow mark appears) to
disable the buttons on the remote
control. 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
F
G
H
I
J
B
C
D
E
A
The display window of the remote control
A Disc indication
B Track number display
C Character information display
D Play mode indication
E SOUND indication
F Battery level indication
G Group indication
H Bookmark indication
I Melody timer indication
1
2
Using the clip for the remote control
The clip can be removed and reattached in the opposite direction.
Removing the clip
Attaching the clip in the opposite
direction
F
GHI
B
AD
E
C
Q A terminal for attaching dry battery
case
R HOLD switch
Slide the switch in the direction of the
arrow to disable the buttons on the
recorder. To prevent the buttons from
being accidentally operated when you
carry the recorder, use this function.
F Jog dial (MENU/ENTER)
Turn to select
Push to enter