Sony Net MD Walkman MZ-N10 User Manual

MZ-N10

SERVICE MANUAL

Ver 1.2 2003. 02

SILVER MODEL

US and foreign patents licensed from Dolby Laboratories.

SPECIFICATIONS

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 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

Inputs

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 kΩ)

Maximum output (DC)

Headphones:

2.0 mW + 2.0 mW (16 Ω) (European models) 5 mW + 5 mW (16 Ω) (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

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Chinese Model

Tourist Model

Model Name Using Similar Mechanism NEW Mechanism Type MT-MZN10-181 Optical Pick-up Name ABX-1R

Battery operation time When recording

Batteries SP

Built-in rechargeable battery

LR6 (SG)

Sony alkaline dry battery

Built-in rechargeable battery + One LR6 (SG)

When playing

Batteries SP

Built-in rechargeable battery

LR6 (SG) Sony alkaline dry battery

Built-in rechargeable battery + One LR6 (SG)

(Unit: approx.hours)(JEITA4))

(Unit: approx.hours)(JEITA)

– Continued on next page –

LP2

Stereo

8.5 11 14

7.5 10 11.5

15 20 26.5

LP2

Stereo

17 20 24

27 32 36

42 52 58

LP4 Stereo

9-874-284-03 Sony Corporation

2003B1600-1 Personal Audio Company C 2003.02 Published by Sony Engineering Corporation

PORTABLE MINIDISC RECORDER

MZ-N10

Ver 1.2 2003.02

Dimensions

Approx. 78.5 × 73.3 × 13.8 mm (w/h/d)

/8× 3 ×9/16 in.) (excluding projecting parts

and controls)

Mass

Approx. 84 g (3 oz) (including the built-in rechargeable battery)

The LINE IN (OPT) jack is used to connect either a digital (optical) cable or a line (analog) cable.

The i/LINE OUT jack connects either headphones/earphones or a line cable.

Measured in accordance with JEITA.

Measured in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard.

When using a 100% fully charged

lithiun-ion

When using a Sony LR6 (SG) “STAMINA” alkaline dry battery (produced in Japan).

rechargeable battery.

built-in

Supplied accessories

AC power adaptor (1) USB cradle (1)

Headphones/earphones with a remote control (1) Dedicated USB cable (1) Dry battery case (1) 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.

US and foreign patents licensed from Dolby Laboratories.

Design and specifications are subject to change without notice.

CAUTION

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

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

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.

• 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.

• ™ and ® marks are omitted in this

manual.

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 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.

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 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.

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

MZ-N10

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

MZ-N10

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

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 electrostatic break-down easily. When handling it, perform soldering bridge to the laser-tap on the flexible board. Also perform measures against electrostatic break-down sufficiently before the operation. The flexible board is easily damaged and should be handled with care.

laser-tap

OPTICAL PICK-UP FLEXIBLE BOAR

• In performing the repair with the power supplied to the set, removing 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.

FLEXIBLE board (over write head)

upper panel assy

•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. Therefore, 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.

Computer IBM PC/AT or Compatible

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

•Hard disk drive space

•

RAM: 64 MB or higher (128 MB or higher is recommended)

Others

•CD-ROM drive (capable of digital playback by WDM)

•Sound Board

•

USB port (supports USB 2.0 Full Speed (previously USB 1.1))

Operating System

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.

Factory installed: Windows XP Home Edition/Windows XP Professional/ Windows Millennium Edition/Windows 2000 Professional/ Windows 98 Second Edition

(800 × 600 dots or more is recommended)

•

Windows Media Player (version 7.0 or higher) installed for playing WMA files

: 120 MB or more

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

operating system

• Multi-boot environment

• Multi-monitor environment

Notes

• We do not ensure trouble-free operation on all computers that satisfy the

system requirements.

• We do not ensure trouble-free operation of the system suspend, sleep, or hibernation function on all computers.

tape

S803

MAIN board

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

2 3

qf qg

Operation Function

Press N

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

qa9 q;87

The headphones/earphones with a remote control

A Vo lume 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

H I J

C D

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

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

GHI

BADEC

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

SECTION 2

GENERAL

MZ-N10

This section is extracted from instruction manual.

1 42 5 6

MZ-N10

SECTION 3

DISASSEMBLY

• The equipment can be removed using the following procedure.

SET

BOTTOM PANEL SECTION, JOG DIAL SECTION

MAIN BOARD SECTION

MD MECHANISM DECK ( MT-MZN10-181), SET CHASSIS

GEAR (SA), GEAR (SB)

OP SERVICE ASSY (ABX-1R)

HOLDER ASSY

UPPER PANEL SECTION

DC MOTOR SSM21A (SLED) (M602), DC MOTOR SSM18D (SPINDLE) (M601), DC MOTOR UNIT (OVER WRITE HEAD UP/DOWN) (M603)

3-1. Bottom Panel Section, Jog Dial Section

)

Notes: On installation, adjust the position of both switch (S802) and knob (hold).

@@@

Adjust the position of both switch (S951) and knob (batt).

@@@

Adjust the position of both the convex part of an open lever and knob (open).

S802

The convex part of an open lever

bottom panel assy

S951

two screws (M1.4)

MZ-N10

screw (M1.4)

3-2. Upper Panel Section

two screws (M1.4)

knob (HOLD)

knob (OPEN)

upper panel assy

knob (BATT)

screw (M1.4)

flexible board (CN891

jog dial assy

flexible board (CN871

Slide the open lever in the direction of the arrow, and open the upper panel section.

two screws (M1.4)

MZ-N10

)

3-3. MAIN Board Section

lithium ion storage battery

flexible board (CN701)

flexible board (CN871)

Remove two solders of th main board.

MAIN board

five toothed lock screws (M1.4)

flexible board (CN951)

3-4. MD Mechanism Deck (MT-MZN10-181), Set Chassis

boss

flexible board (CN501)

two step screws (MD)

MD mechanism deck

(MT-MZN10-181)

torsion spring (pop-L)

set chassis assy

battery case

boss

torsion spring (pop-R

3-5. Gear (SA), Gear (SB)

)

gear (SB)

tapping screw

spring

washer (0.8-2.5)

gear (SA)

MZ-N10

3-6. OP Service Assy (ABX-1R)

OP service assy (ABX-1R)

Opening the over write head toward the direction A, remove the OP service assy (ABX-1R) toward the direction B.

Note: Do not the entire assy forcibly,

when opening the over write head.

Pull off lead screw.

rack spring

precision pan screw (M1.4)(EG

MZ-N10

3-7. DC Motor SSM21A (Sled) (M602), DC Motor SSM18D (Spindle) (M601),

DC Motor Unit (Over Write Head Up/Down) (M603)

two screws (M1.4)

DC motor SSM21A (sled) (M602)

Remove two solders of the flexible board.

Remove four solders of the flexible board.

screw

DC motor unit (over write head up/down)

(M603)

three screws

DC motor SSM18D (spindle) (M601)

3-8. Holder Assy

Remove the holder assy in the direction of the arrow A.

Open the holder assy.

boss

motor base assy

bos

SECTION 4

TEST MODE

MZ-N10

Outline

•This set provides the Overall adjustment mode that allows CD and MO discs to be automatically adjusted when in the test mode. In this overall adjustment mode, the disc is discriminate between CD and MO, and each adjustment is automatically executed in order. If a fault is found, the system displays its location. Also, the manual mode allows each individual adjustment to be automatically adjusted.

• Operation in the test mode is performed with the set. A key having no particular description in the text, indicates a set key.

•For the LCD display, the LCD on the remote commander is shown, but the contents of LCD display on the set are same. (Both displays may be displayed.)

Setting Method of Test Mode

There are three different methods to set the test mode: 1 Short SL803 (TEST) on the MAIN board with a solder bridge

(connect pin <zx. of IC801 to the ground) and turn on the power.

– MAIN Board (Side B) –

3 In case of setting the test mode by keys on the set and

remote commander: In the normal mode, turn on the [HOLD] switch on the set. While pressing the x key on the set, press the keys on the remote commander with the following order:

> t > t . t . t > t . t > t . t t

Note: If electrical adjustment (CD and MO overall adjustment) has not

been finished completely, “ERROR” is displayed on LCDs of the set and the remote commander.

Operation in Setting the Test Mode

•When the test mode becomes active, first the display check mode is selected.

• Other mode can be selected from the display check mode.

•When the test mode is set, the LCD repeats the following display.

Remote commander LCD display

All lit

IC801

C815

R838

TP1829

1-686-347-

All off

Microcomputer version display

Set LCD display

All lit

All off

Microcomputer version display

V1.100

001

Ver 1.100

2 In case of setting the test mode only by keys on the set:

In the normal mode, turn on the [HOLD] switch. While pressing the [GROUP] key press the following order:

> t > t . t . t > t . t > t . t X t X

• When the X key is pressed and hold down, the display at that time is held so that display can be checked.

Releasing the Test Mode

For test mode set with the method 1: Turn off the power and open the solder bridge on SL803 (TEST) on the MAIN board.

Note: Remove the solders completely. Remaining could be shorted with

the chassis, etc.

For test mode set with the method 2 or 3: Turn off the power.

MZ-N10

Configuration of Test Mode

[Test Mode $Display Check Mode%]

Press the > or [VOL +] key,

or press the

[VOL +] key on the remote commander

[Manual Mode]

Press the x key

[Servo Adjustment] [Audio Adjustment] [Power Supply Adjustment]

[OP Alignment Adjustment]

Press the . or [VOL --] key

[Overall Adjustment Mode]

Press the x key

Turn the jog dial (down), or press the [DISPLAY] key on the remote commander

[Electrical Offset Adjustment]

Power Supply Adjustment Auto Item Feed

CD Overall Adjustment/ MO Overall Adjustment

[Self-Diagnosis Result Display Mode]

Press the x key

Press the N or z or press the > key on the remote commander

REC .

key,

[Sound Skip Check Result Display Mode]

Press the x key

Press the on the remote commander for several seconds (about 3 seconds)

[T MARK] key, or press the [DISPLAY] key

[Key Check Mode]

The key check quits, or open the upper panel

Manual Mode

Mode to adjust or check the operation of the set by function. Normally, the adjustment in this mode is not executed. However, the Manual mode is used to clear the memory, power supply adjustment, and laser power check before performing automatic adjustments in the Overall Adjustment mode.

The manual mode consists of a major item, a medium item and a minor item. The manual mode is divided into four groups of major items. SERVO : item number 000 - 500, 800 AUDIO : item number 600 POWER : item number 700 OP : item number 900 A medium item divides a major item and is used to select functions. In a minor item, adjustments or operation checks are performed.

•Transition method in manual mode

1. Set the test mode (see page 11).

2. Press the > key, [VOL +] key or [VOL +] key on the remote commander activates the manual mode where the LCD display as shown below.

Remote commander LCD display

000

Manual

Set LCD display

000

Manual

3. During each test, the optical pick-up moves outward or inward while the > or . key is pressed for several seconds respectively.

4. Each test item is assigned with a 3-digit item number; 100th place is a major item, 10th place is a medium item, and unit place is a minor item. The values adjusted in the test mode are written to the nonvolatile memory (for the items where adjustment was made).

[Major item switching]

key

[Medium item switching]

key

[Minor item switching]

[VOL +]

[VOL --]

[VOL +]

[VOL --]

[Adjusted value variation]

[VOL +]

[VOL --]

[P MODE]

[SOUND]

[Adjusted value write]

key: 100th place of item

number increase.

key: 100th place of item

number decrease.

key: 10th place of item

number increase.

key: 10th place of item

number decrease.

key: Unit place of item number

increase.

key: Unit place of item number

decrease.

key: Increases the adjusted

value of the 1st digit

key: Decreases the adjusted

value of the 1st digit

key of

the remote commander: Increase the adjusted value of the 2nd digit

key of the remote commander:

Decrease the adjusted value of the 2nd digit

key or

key of the remote commander:

When adjusted value is changed: Adjusted value is written. When adjusted value is not changed: That item is adjusted automatically.

[RAM monitor]

[T MARK] [SOUND]

key or

key of the remote commander

for several seconds

MZ-N10

5. The display changes a shown below each time the jog dial (down) is turned or the [DISPLAY] key on the remote commander is pressed.

• Address & Adjusted Value Display

Remote commander LCD display

011

C68S01

item number

• Jitter Value & Adjusted Value Display

Remote commander LCD display

011

item number

• Block Error Value & Adjusted Value Display

Remote commander LCD display

011

item number

• ADIP Error Value & Adjusted Value Display

Remote commander LCD display

011

item number

• Focus Drive Value & Adjusted Value Display

Remote commander LCD display

011

item number

• Item Title Display

Remote commander LCD display

011

item number

address

OFFJ01

jitter value

063B01

block error

value

059A01

ADIP error

value

015F01

Focus drive

value

LrefPw 01

item title

adjusted value

Self-Diagnosis Result Display Mode

This set uses the self-diagnostic function system in which if an error occurred during the recording or playing, the mechanism control block and the power supply control block in the microcomputer detect it and record its cause as history in the nonvolatile memory. By checking this history in the test mode, you can analyze a fault and determine its location. Total recording time is recorded as a guideline of how long the optical pick-up has been used, and by comparing it with the total recording time at the time when an error occurred in the selfdiagnosis result display mode, you can determine when the error occurred. Clear both self-diagnosis history data and total recording time, if the optical pick-up was replaced.

• Self-diagnosis result display mode setting method

1. Set the test mode (see page 11).

2. In the display check mode, turning the jog dial (down) or pressing the [DISPLAY] key on the remote commander activates the self-diagnosis result display mode where the LCD display as shown below.

Remote commander LCD display

0XX

1 0000

history code

error display code

Set LCD display

Total recording time when error occurred

0XX

1 0000

Total recording time when error occurred

error display code

history code

3. Then, each time the by one as shown below. Also, the LCD display ascends by one when the . key is pressed.

> key is pressed, LCD display descends

However in the power mode (item number 700’s), only the item is displayed.

6. Quit the manual mode, and press the test mode (display check mode).

x key to return to the

Overall Adjustment Mode

Mode to adjust the servo automatically in all items. Normally, automatic adjustment is executed in this mode at the repair. For further information, refer to “SECTION 5 ELECTRICAL ADJUSTMENTS” (see page 17).

0XX 1 ****

0XX N ****

0XX N1****

0XX N2****

0XX R_****

: Error code

****

: Total recording time

If the jog dial (down) is turned or the [DISPLAY] key on remote commander is pressed with this display, the LCD switches to the simple display mode.

4. Quit the self-diagnosis result display mode, and press the x key to return to the test mode (display check mode).

MZ-N10

• Description of error indication codes

Problem Indication code Meaning of code Simple display Description

No error 00 No error --- No error

Servo system error 02 High temperature Temp High temperature detected

03 Focus error Fcus Disordered focus or can not read an address 04 Spindle error Spdl Abnormal rotation of disc 11 TOC error TOC Faulty TOC contents

TOC error 12 Data reading error Data Data could not be read at SYNC

13 TOC address error Tadr TOC address data error

Power supply system error 22 Low battery LBat Momentary interruption detected

31 Offset error Ofst Offset error

Offset system error Offset error

36 Mirror error Mirr Mirror decision retry over

Illegal access target address was specified

Focus error ABCD offset error

Tracking error

X1 tracking error Offset error

MD DATA 2 Disc error

Adrs Attempt to access an abnormal address

ABCD Focus error ABCD offset error

TE Tracking error Offset error

X1TE X1 tracking error Offset error

MD2 MD DATA 2 disc error

• Description of indication history

History code number Description

1The first error N The last error N1 One error before the last. N2 Two errors before the last. R_ Total recording time

Reset the Error Display Code

After servicing, reset the error display code.

• Setting method of reset the error display code

1. Set the test mode (see page 11).

2. Turning the jog dial (down) or pressing the [DISPLAY] key on the remote commander activates the self-diagnosis result display mode.

3. To reset the error display code, press the zREC. key or

key on the remote commander (twice) when the code is

displayed (except “R_****”).

Remote commander LCD display (Key pressing at the first time)

000

ClrOK?

Remote commander LCD display (Key pressing at the second time)

000

ErrCLR

(All the data on the 1, N, N1, and N2 will be reset)

MZ-N10

Sound Skip Check Result Display Mode

This set can display the count of errors that occurred during the recording/playing for checking.

• Setting method of sound skip check result display mode

1. Set the test mode (see page 11).

2. Press the N key or zREC. key, and the playing or re-

cording sound skip check result display mode becomes active respectively and press the > key on the remote commander, and then the playing sound skip check result display mode becomes active where the LCD displays the following.

Remote commander LCD display

000

P**R**

Total count of play system errors (hex.)

When theNkey is pressed, total error count is displayed on the LCD, and each time the moves down by one as shown below. Also, if the pressed, the display item moves up by one, then if the zREC. key is pressed, the display in the record mode appears. When the zREC. key is pressed, total error count is displayed on the LCD, and each time the > key is pressed, the display item moves down by one as shown below. Also, if the . key is pressed, the display item moves up by one, then if the N key is pressed, the display in the play mode appears.

Playing sound skip result display

Total count of record system errors (hex.)

key is pressed, the display item

Recording sound skip result display

key is

Key and Jog Check Mode

This set can check if the set and remote commander function normally.

• Setting method of key check mode

1. Set the test mode (see page 11).

2. Pressing the [T MARK] key or [DISPLAY] key on the remote commander for several seconds (about 3 seconds) activates the key check mode. (At the last two digits, AD value of remote commander key line is displayed in hexadecimal)

Remote commander LCD display

000

: AD value of the remote commander key

(hexadecimal 00 to FF)

3. When each key on the set and on remote commander is pressed, its name is displayed on the remote commander LCD. (The operated position is displayed for 4 seconds after the slide switch is operated. If any other key is pressed during this display, the remote commander LCD switches to its name display)

Example1: When the > key on the set is pressed:

Remote commander LCD display

000

FF **

: AD value of the remote commander key

(hexadecimal 00 to FF)

000 P**R**

000 EIB **

000 Stat**

000 Adrs**

000 BEmp**

000 P**R**

000 BOvr**

000 Bful**

000 Rtry**

000 ######

P**R**

: Total play/record errors (hex.)

: Counter of sound skip check each item (hex.)

######

: 6-digit address where sound was skipped last (hex.)

• Cause of sound skip error

Cause of error Description of error

EIB Sound error correction error

Play

Record

4. To quit the sound skip check result display mode and to return to the test mode (display check mode), press the x key.

Stat Decoder status error Adrs Address access error BEmp Buffer is empty

BOvr

Bful

Rtry Retry times over

Buffer is full, and sounds were dumped

Buffer capacity becomes less, and forcible writing occurred

Example2: When the

pressed:

Remote commander LCD display

000

: AD value of the remote commander key

(hexadecimal 00 to FF)

4. When all the keys on the set and on the remote commander are considered as OK, the following displays are shown for 4 seconds.

Example1: When the keys on the set are considered as OK:

Remote commander LCD display

888

Set LCD display

> key on the remote commander is

rFF **

SET OK **

888

SET OK **

: AD value of the remote commander key

(hexadecimal 00 to FF)

MZ-N10

Example2: When the keys on the remote commander are con-

sidered as OK:

Remote commander LCD display

888

RMC OK **

Set LCD display

888

RMC OK **

: AD value of the remote commander key

(hexadecimal 00 to FF)

5. When all keys were checked or if the upper panel is opened, the key check mode quits and the test mode (display check mode) comes back.

• Jog check mode

Jog check mode is available during the key check mode.

1. Turn the jog dial downwards one click.

Remote commander LCD display

000

JOG+ 1 **

2. Turn the jog dial downwards three more clicks.

Remote commander LCD display

000

JOG+OK **

3. Turn the jog dial upwards one click.

Remote commander LCD display

000

JOG- 1 **

4. Turn the jog dial upwards three more clicks.

Remote commander LCD display

000

JOG-OK **

SECTION 5

Remote commander LCD display

ResNV CC

021

Remote commander LCD display

ResOK?

021

Remote commander LCD display

: Adjusted value

SetTmp@**

015

ELECTRICAL ADJUSTMENTS

MZ-N10

Outline

• In this set, automatic adjustment of CD and MO can be performed by entering the test mode. However, before starting automatic adjustment, the memory clear, power supply adjustment, and laser power check must be performed in the manual mode.

•A key having no particular description in the text, indicates a set key.

•For the LCD display, the LCD on the remote commander is shown, but the contents of LCD display on the set are same.

Precautions for Adjustment

1. Adjustment must be done in the test mode only.

After adjusting, release the test mode.

2. Use the following tools and measuring instruments.

•Test CD disc TDYS-1 (Part No. : 4-963-646-01)

• SONY MO disc available on the market

• Digital voltmeter

• Laser power meter LPM-8001

(Part No. : J-2501-046-A)

•AC adaptor (6V) and USB cradle

• Personal computer

• USB cable

•Regulated dc power supply (two sets)

•Thermometer (using the Temperature Correction)

3. Unless specified otherwise, use AC adaptor (6V) and USB cradle.

4. Switch position

HOLD switch ............................................... ON

Adjustment Sequence

1. NV Reset (item number: 021) (EEPROM clear)

2. Temperature Correction (item number: 015)

3. Power Supply Manual Adjustment

4. Laser Power Check and Adjustment

5. Adjustment required before Overall Adjustment

6. CD Overall Adjustment (item number: 031)

Overall Adjustment (item number: 034)

8. RESUME Clear (item number 043)

9. Rewriting the Patch Data (at replacement of the MAIN board)

10. Rewriting the NV values



Manual Mode

 



Manual Mode

 

 

Manual Mode

  



Manual Mode

 

 

Overall Mode

  



Manual Mode

 

NV Reset

Caution: The shipment data will be cleared without the adjusted

values of the electrical offset adjustment and power supply adjustment when the NV is reset.

• Setting method of NV reset

1. Select the manual mode of the test mode, and set item number 021 NV Reset (see page 12).

2. Press the X key.

3. Press the X key once more.

Remote commander LCD display

021

Res***

NV reset (after several seconds)

021

Reset!

4. Press the x key to quit the manual mode, and return to the test mode (display check mode).

Temperature Correction

• Adjustment method of temperature correction

1. Select the manual mode of test mode, and set the item number 015 (see page 12).

2. Measure the ambient temperature.

3. Adjust with [VOL +], [VOL --] key so that the adjusted value (hexadecimal value) becomes the ambient temperature. (Initial value: 19h = 25 °C, Adjusting range: 80h to 7fh (–128 °C to +127 °C)

4. Press the X key to write the adjusted value.

5. Press the x key to quit the manual mode, and return to the test mode (display check mode).

Note : Power supply adjustment auto item feed mode (see page

22 ) is available to perform the temperature correction and power supply adjustment without entering the manual mode.

Note:

“2. Temperature Correction” and “3. Power Supply Manual Adjustment” can be performed continuously with pressing the key or the adjustment mode.

[P MODE]

key on the remote commander in the overall

[VOL --]

MZ-N10

Power Supply Manual Adjustment

• Adjustment sequence

Adjustment must be done with the following steps.

1. VC1 Low adjustment (item number : 741)

2. VC1 High adjustment (item number : 742)

3. VC2 Low adjustment (item number : 743)

4. VC2 High adjustment (item number : 744)

5. REG1 adjustment (item number : 745)

6. REG3 Low (VC2 Low) adjustment (item number : 747)

7. REG3 Low (VC2 High) adjustment (item number : 748)

8. REG3 High adjustment (item number : 749)

9. VREC_Low adjustment (item number : 751)

10. VREC_Middle adjustment (item number : 752)

11. VREC_High adjustment (item number : 753)

12. 3.3upc adjustment (item number : 754)

13. ChgV L adjustment (item number : 755)

14. ChgV H adjustment (item number : 756)

• Setting method of power supply manual adjustment

1. Make sure that the power supply voltage is 6V(AC adaptor).

2. Select the manual mode of the test mode (see page 12).

3. Set item number.

Note : Power supply adjustment auto item feed mode (see page

12 ) is available to perform the temperature correction and power supply adjustment without entering the manual mode.

• Adjustment method of VC1 Low (item number: 741)

Remote commander LCD display

741

VC1 L **

: Adjusted value

1. Connect a digital voltmeter to the TP1906 (VC1) on the MAIN

board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.35 V.

digital

voltmete

MAIN board

TP1906 (VC1)

TP1951 (GND)

2. Press the X key or the key on the remote commander

to write the adjusted value.

Adjustment and Connection Location: MAIN board

(see page 21)

• Adjustment method of VC1 High (item number: 742)

Remote commander LCD display

742

VC1 H **

: Adjusted value

+ 0.005 – 0.000

1. Connect a digital voltmeter to the TP1906 (VC1) on the MAIN board, and adjust (voltage down) so that the voltage becomes 2.75 V.

MAIN board

TP1906 (VC1)

TP1951 (GND)

2. Press the

[VOL +] key (voltage up) or [VOL --] key

digital

voltmete

X key or the key on the remote commander

+ 0.005 – 0.000

to write the adjusted value.

Adjustment and Connection Location: MAIN board

(see page 21)

• Adjustment method of VC2 Low

(item number: 743)

Remote commander LCD display

743

VC2 Lo **

: Adjusted value

1. Connect a digital voltmeter to the TP1936 (VC2) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.25 V.

digital

voltmete

MAIN board

TP1936 (VC2)

TP1951 (GND)

2. Press the

X key or the key on the remote commander

+ 0.007 – 0.000

to write the adjusted value.

Adjustment and Connection Location: MAIN board

(see page 21)

• Adjustment method of VC2 High

(item number: 744)

Remote commander LCD display

744

VC2 Hi **

: Adjusted value

1. Connect a digital voltmeter to the TP1936 (VC2) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.70 V.

digital

voltmete

MAIN board

TP1936 (VC2)

TP1951 (GND)

+ 0.007 – 0.000

2. Press the X key or the key on the remote commander to write the adjusted value.

Adjustment and Connection Location: MAIN board

(see page 21)

MZ-N10

Remote commander LCD display

: Adjusted value

REG3 H **

749

Remote commander LCD display

: Adjusted value

VREC L **

751

Remote commander LCD display

: Adjusted value

VREC M **

752

• Adjustment method of REG1 (item number: 745)

Remote commander LCD display

745

REG1 **

: Adjusted value

1. Connect a digital voltmeter to the

board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.15 V.

MAIN board

TP1909 (REG1)

TP1951 (GND)

2. Press the

X key or the key on the remote commander

TP1909 (REG1)

digital

voltmete

on the MAIN

+ 0.01 – 0.00

to write the adjusted value.

Adjustment and Connection Location: MAIN board

(see page 21)

• Adjustment method of REG 3 Low (VC2 Low) (item number: 747)

Remote commander LCD display

• Adjustment method of REG 3 High (item number: 749)

1. Connect a digital voltmeter to the

board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.35 V.

MAIN board

TP1907 (REG3)

TP1951 (GND)

2. Press the

X key or the key on the remote commander

TP1907 (REG3)

digital

voltmete

on the MAIN

+ 0.01 – 0.00

to write the adjusted value.

Adjustment and Connection Location: MAIN board

(see page 21)

• Adjustment method of VREC_Low (item number: 751)

747

REG3L1 **

: Adjusted value

1. Connect a digital voltmeter to the board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.20 V.

MAIN board

TP1907 (REG3)

TP1951 (GND)

TP1907 (REG3)

digital

voltmete

on the MAIN

+ 0.01 – 0.00

2. Press the X key or the key on the remote commander to write the adjusted value.

Adjustment and Connection Location: MAIN board

(see page 21)

• Adjustment method of REG 3 Low (VC2 High)

(item number: 748)

Remote commander LCD display

748

REG3L2 **

: Adjusted value

1. Connect a digital voltmeter to the board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.20 V.

MAIN board

TP1907 (REG3)

TP1951 (GND)

TP1907 (REG3)

digital

voltmete

on the MAIN

+ 0.01 – 0.00

1. Connect a digital voltmeter to the

TP1622 (VREC)

on the MAIN

board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.10 ± 0.015 V.

digital

voltmete

MAIN board

TP1622 (VREC)

TP1951 (GND)

2. Press the

X key or the key on the remote commander

to write the adjusted value.

Adjustment and Connection Location: MAIN board

(see page 21)

• Adjustment method of VREC_Middle (item number: 752)

1. Connect a digital voltmeter to the

TP1622 (VREC)

on the MAIN

board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.24 ± 0.015 V.

digital

voltmete

MAIN board

TP1622 (VREC)

TP1951 (GND)

2. Press the to write the adjusted value.

Adjustment and Connection Location: MAIN board

X key or the key on the remote commander

(see page 21)

2. Press the X key or the key on the remote commander to write the adjusted value.

Adjustment and Connection Location: MAIN board

(see page 21)

MZ-N10

• Adjustment method of VREC_High (item number: 753)

Remote commander LCD display

753

VREC H **

: Adjusted value

1. Connect a digital voltmeter to the

board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.54 ± 0.015 V.

MAIN board

TP1622 (VREC)

TP1951 (GND)

2. Press the

to write the adjusted value.

Adjustment and Connection Location: MAIN board

• Adjustment method of 3.3upc (item number: 754)

Remote commander LCD display

1. Remove the AC adaptor and USB cradle.

2. Turn off the BUILT-IN BATTERY switch.

3. Remove the rechargeable battery from the connector (CN951).

4. Supply dc 3.7V to the battery terminals (TP1952 : +, TP1951

: GND) with a regulated dc power supply.

5. Supply dc 5V to pin 8 (VBUS) of CN952 with a regulated dc

power supply.

6. Turn on the BUILT-IN BATTERY switch.

7. Select the manual mode of the test mode (see page 12), and set

the item number 754.

8. Connect a digital voltmeter to the

board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 3.30 ± 0.01 V.

X key or the key on the remote commander

754

3.3upc **

: Adjusted value

MAIN board

TP1623 (3.3upc)

TP1951 (GND)

TP1622 (VREC)

digital

voltmete

(see page 21)

TP1623 (3.3upc)

digital

voltmete

on the MAIN

1. Connect a digital voltmeter to the TP1952 (ChgV) on the MAIN board, and adjust (voltage down) so that the voltage becomes 3.40 ± 0.024 V.

MAIN board

TP1952 (ChgV)

TP1951 (GND)

2. Press the to write the adjusted value.

Adjustment and Connection Location: MAIN board

• Adjustment method of ChgV H

(item number: 756)

Remote commander LCD display

756

: Adjusted value

Note : Remove the rechargeable battery from the connector

(CN951) and measure the voltage with the BUILT-IN BATTERY switch on. Use AC adaptor (6V) and USB cradle to supply the power.

1. Connect a digital voltmeter to the TP1952 (ChgV) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 4.20 ± 0.024 V.

MAIN board

TP1952 (ChgV)

TP1951 (GND)

2. Press the to write the adjusted value.

Adjustment and Connection Location: MAIN board

[VOL +] key (voltage up) or [VOL --] key

digital

voltmete

X key or the key on the remote commander

(see page 21)

ChgV H **

digital

voltmete

X key or the key on the remote commander

(see page 21)

9. Press the to write the adjusted value.

Adjustment and Connection Location: MAIN board

• Adjustment method of ChgV L

(item number: 755)

Remote commander LCD display

Note : Remove the rechargeable battery from the connector

X key or the key on the remote commander

(see page 21)

755

ChgV L **

: Adjusted value

(CN951) and measure the voltage with the BUILT-IN BATTERY switch on. Use AC adaptor (6V) and USB cradle to supply the power.

+ 46 hidden pages

Sony Net MD Walkman MZ-N10 User Manual

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

DISASSEMBLY

3-1. Bottom Panel Section, Jog Dial Section

3-2. Upper Panel Section

3-3. MAIN Board Section

3-4. MD Mechanism Deck (MT-MZN10-181), Set Chassis

3-5. Gear (SA), Gear (SB)

3-6. OP Service Assy (ABX-1R)

3-8. Holder Assy

TEST MODE

ELECTRICAL ADJUSTMENTS