MZ-N1

6-8. SCHEMATIC DIAGRAM – MAIN Board (2/4) – • See page 40 for Waveforms. See page 41 for IC Block Diagrams.

(2/4)

A0

A1

A2

A3

A4

C561

SCW

SCV

SCU

SP

SMU

SMV

SMW

XMD

3C

2C

1C

-K

+K

 

 

 

 

TR

TR

C521

C522

R915

D904

 

 

 

 

 

0.1

0.1

100

MA2S111

UI2

I2W

2PGNDW

O2W

2VWVM

VO2

UV2PGND

UO2

VMU2

VMR2

RO2

PGND2

FO2

MF2W

TF1

 

 

FI2

 

 

VI2

TR1

 

 

PWM2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RI2

 

 

CPUO2

 

 

 

 

 

 

 

 

 

 

 

 

 

D4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM2

 

 

CPVO2

 

 

 

 

 

 

 

 

 

 

 

 

 

D3

C919

 

 

 

 

 

 

 

 

 

 

 

 

 

CPUI2

CPWO2

 

 

 

 

 

 

 

 

 

 

 

 

 

D2

10

6.3V

 

 

 

 

 

 

 

 

 

 

 

 

 

CPVI2

 

 

OE

 

 

 

 

 

 

 

 

 

 

 

 

 

D1

C920

 

 

 

 

 

 

 

 

 

 

 

 

 

CPWI2

 

D1

 

D2

VCP

VLP

D3

D4

D5

D6

D7

 

Q904

 

R930

AP911

 

 

 

 

1M

(VD)

S

 

 

2SB1462J

 

 

 

 

 

 

 

 

 

 

 

 

Q907

 

 

R925

 

 

 

3LN01SS

 

 

 

 

 

B+ SWITCH

 

 

1M

 

 

 

 

R927

 

R928

 

 

 

 

1M

Q904,905

1M

 

 

S

 

 

 

 

 

 

 

B+ SWITCH

 

 

 

 

 

 

 

-1

-2

Q903

 

 

 

 

 

 

S12302DS-T1

 

 

 

Q905

R929

Q906

B+ SWITCH

 

 

 

1M

XP1501

 

R909

R910

 

UN9214J

 

 

 

SWITCHING

 

10k

10k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L907

C934

R934

 

 

 

 

10

 

 

 

 

10H

22k

 

 

 

 

4V

 

 

 

 

 

 

A5

(Page 36)

A6

A7

A8

A9

A10

0.1

CMW

CMV

CMU

CP

CCU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

6.3V

GND1

 

 

 

 

 

 

 

 

 

 

 

 

NC

 

 

 

 

 

 

 

 

 

 

VC

 

 

FOCUS/TRACKING COIL DRIVE,

 

 

GND2

 

 

 

 

 

 

 

 

 

 

 

 

 

SPINDLE/SLED MOTOR DRIVE

 

 

 

 

D5

 

 

 

 

 

 

VG

 

 

 

 

 

CPWI1

 

 

 

 

 

 

 

 

 

 

 

 

 

IC551

 

 

 

 

 

 

 

D6

 

 

 

 

 

AP914

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPWO1

 

 

 

 

SC111258FCR2

 

 

 

 

CPVI1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(VC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D7

 

 

 

 

 

CPVO1

 

 

 

 

 

 

 

 

 

 

 

 

CPUI1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D8

 

 

 

 

 

 

CPUO1

 

 

 

 

 

 

 

 

 

 

 

 

COM1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FR1

 

 

 

 

 

 

PWM1

 

 

 

 

 

 

 

 

 

 

 

 

RI1

 

 

 

 

 

 

 

 

 

 

 

 

 

PGNDUV1

 

 

 

 

 

 

 

 

FF1

 

 

 

 

 

 

UI1

 

1PGNDW

 

1VMVW

 

 

 

 

 

 

 

FI1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PGND1

 

 

 

 

 

 

 

 

 

 

 

VI1

WI1

O1W

VO1

UO1

VMU1

VMR1

RO1

FO1

VMF1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R911

 

 

 

4

 

5

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XRST

470

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

C

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C512

C566

 

 

 

 

 

 

C930

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.1

0.1

 

 

 

 

 

 

0.22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C917

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.1

 

 

V

W

 

 

 

 

 

 

FCS-

FCS+

 

 

 

 

 

 

 

 

 

C915

 

 

CC

CC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C932

0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CSEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L906

R924

D905

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.2k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100H

 

MA2Z748

 

 

 

 

FF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q902

 

 

 

 

 

 

 

 

C931

R938

R923

C933

 

SL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

470k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100p

 

0

100p

 

 

 

 

 

 

 

 

2SD2114KT146

 

 

 

 

 

 

 

 

0.5%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B+ SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R916

P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC/DC

 

CE

VDD FB

 

1M

C926

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONVERTER

 

0.5%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

EXT

 

 

 

1000p

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C902

C901

D901

10

10

MA2YD15

6.3V

6.3V

 

R933

1ML903

10H

VIF

VA

VAFB

VDFB

VIFFB

GND

VC

VCO

VC

VCOUT

L1

NC

PGND1

PGND1

L1

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

VD

 

 

 

 

 

 

 

 

 

 

 

 

 

RF1

VC2

 

 

 

 

 

 

 

 

 

 

 

 

 

INM1

XRST

 

 

 

 

 

 

 

 

 

 

 

 

 

DTC1

CRST

 

 

 

 

 

 

 

 

 

 

 

 

 

DTC2

RSTREF

 

 

 

 

 

 

 

 

 

 

 

 

 

RF2

VREF

 

 

 

 

 

 

 

 

 

 

 

 

 

INM2

VB

 

 

 

 

POWER CONTROL

 

 

 

 

 

VDRF

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

IC901

 

 

 

 

 

 

VGFB

CLKSEL

 

 

 

 

XPC18A32AFCR2

 

 

 

 

 

VG

 

 

 

 

 

 

 

 

 

 

 

 

 

VAIFON

 

 

 

 

 

 

 

 

 

 

 

 

 

LG

FFCLR

 

 

 

 

 

 

 

 

 

 

 

 

 

PGND2

SLEEP

 

 

 

 

 

 

 

 

 

 

 

 

 

L2

CLK

 

 

 

 

 

 

 

 

 

 

 

PGND2

PGND2

NC

NVLO

XWK1

XWK2

XWK3

XWK4

VSTB

VRMC

DGN

VL

VLO

VL

L2

 

L901

100H

R941

22k

R902

470k

 

R903

C905

 

 

2.2k

0.1

 

 

C908

0.1

 

 

C921

0.1

 

 

 

 

 

C922

 

 

 

 

1000p

R935 R937

C906

R905

1M

470k

0.01

2.2k

C924 C907

0.472.2

C923 C925

0.470.47

D903

MA729

L905

R917

100H

0

(Page 38)

M602

(SLED)

U

W

M603

OVER WRITE

HEAD UP/DOWN

U

W

M601

(SPINDLE)

N

 

 

CN502

 

10P

 

1

V

SLEDN

C1

 

SLEDU

 

C2

 

SLEDV

 

C3

 

SLEDW

 

HD DRV-

 

HD DRV+

 

C4

 

CLVW

 

C5

 

CLVV

 

C6

N

CLVU

CLVN

 

 

10

V

 

RB551

2.2k

X4

RB552

10k

X4

 

 

D1

 

 

D2

 

 

D3

C562

C563

C564

0.047

0.047

0.047

 

 

D4

D5

D6

D7

D8

022.

01.0

022.

01.0

022.

01.0

C5570

C570

C5580

C571

C5590

C572

 

 

 

D905,Q901

 

 

5%

 

 

 

 

 

 

 

IC902

 

.0

4V

4V

 

 

 

 

 

DC/DC

 

 

 

 

 

 

XC6368D101MR

100kR922

22C928

C92922

 

 

 

 

 

CONVERTER

 

 

 

 

 

 

 

S

Q901

 

 

 

 

 

 

XP151A13A0MR

 

 

 

 

 

 

Q908

 

 

 

 

 

 

R961

 

R954

R956

2SA1745

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10k

 

47k

1M

 

 

 

 

 

 

 

0.5%

 

0.5%

 

 

 

 

 

 

 

 

 

 

 

Q908,909

R958

 

 

 

 

R953

470k

 

 

 

100k

R960

 

 

 

 

 

 

B+ SWITCH

 

220k

 

 

Q910

R952

220k

 

 

 

 

 

 

 

 

 

VOUT

 

 

 

 

 

2SD2216J

R951

470k

 

VIN

 

 

 

 

 

 

VOLTAGE

 

Q909

 

Q910,911

 

 

R950

100k

DETECTOR

 

 

R955

2SD2216J

 

SWITCHING

 

 

 

 

 

VSS

220k

 

 

 

 

 

 

IC903

NC

 

 

 

 

 

 

 

 

 

 

Q911

 

 

 

 

XC61CN0802NR

 

 

 

 

 

 

 

C936

 

 

C935

R959

 

2SD2216J

 

 

 

 

 

 

 

 

 

 

 

 

0.1

 

 

0.1

220k

 

 

 

 

 

 

C914

0.1

 

 

 

 

 

L904

 

NOVL

TEWD

KCER

KCMR

FLAH

10H

 

10k

MA2YD15

 

 

 

 

 

R920

D902

 

 

 

 

 

 

 

 

 

 

 

0.5%

 

 

 

 

 

 

C904

 

 

 

 

 

 

10

 

 

 

 

 

 

6.3V

 

 

 

 

 

 

C913

C903

 

 

 

 

 

100

 

 

 

 

 

4700p

6.3V

ZZ2

 

ZZ3

 

ZZ1

 

 

L902

22H

AP912

(GND)

D8

D9

AP915

(VL)

D10

E1

(Page 39)

37 37

Page 37
Image 37
Sony MZ-N1 service manual Flah

MZ-N1 specifications

The Sony MZ-N1, a revered model in the world of portable mini-disc players, holds a special place in the hearts of audiophiles and casual listeners alike. Launched as part of Sony's celebrated mini-disc lineup, it exemplifies the innovative spirit of its time with a sleek, compact design and a suite of features that appealed to music lovers.

At the heart of the MZ-N1 is its support for both standard and high-speed recording, allowing users to transfer their favorite tracks from CDs or other sources quickly and efficiently. The unit employs a unique mechanism known as the ATRAC codec, which optimizes audio compression while maintaining sound quality. This technology enables users to fit numerous tracks onto a single mini-disc, transforming how music was stored and played back.

One of its standout features is the inclusion of SonicStage software, which serves as a companion for managing music libraries. Users can edit playlists, transfer tracks, and organize their music collection seamlessly. The player supports various formats, including MP3, making it versatile in its playback capabilities. Additionally, the MZ-N1 is equipped with a backlit display, facilitating easy navigation even in low-light conditions.

Another notable characteristic of the MZ-N1 is its impressive battery life, offering hours of continuous playback on a single charge. This longevity made it an attractive option for users on the go, ensuring that their music would last through long commutes or road trips without interruption.

Furthermore, the MZ-N1 features a headphone amplifier that enhances sound quality, providing a richer audio experience. The player boasts a range of sound customizations, allowing users to adjust equalizer settings to suit their preferred listening style.

In terms of design, the MZ-N1 is compact, lightweight, and sturdy, making it highly portable. The simple, intuitive interface ensures that users can navigate through functions with ease, enhancing the overall listening experience.

Overall, the Sony MZ-N1 stands as a remarkable blend of technology and user-friendly design, showcasing the innovation of the early 2000s portable audio solutions. Its combination of sound quality, flexibility, and battery efficiency has solidified its status as a classic in the realm of mini-disc players. While modern digital music players have largely eclipsed this technology, the legacy of the MZ-N1 endures in the memories of those who experienced its audio marvels.