MZ-G750/R700

• IC BLOCK DIAGRAMS

 

IC501

SN761057DBT

 

 

 

 

 

 

 

 

 

 

 

44

ADIP-IN

 

 

 

A+B+C+D

 

TWpp

43

S-MON

 

 

 

 

 

 

 

 

 

I+J

 

PK/BTM

 

 

TE

1

 

NPP

 

Aw

 

 

 

TON

 

CSLO

 

 

REXT

2

 

CSL

 

VREF075

 

 

Wpp LPF

3

 

Aw+Dw

S-MONITOR

A-C

 

 

 

 

 

TON Peak

D-C

 

 

VREF

4

 

 

 

 

 

TON Botm

 

Malfa

 

 

C

5

 

 

 

 

 

ADIP

 

Mij

 

 

D

6

 

TE

 

AwBPF

 

 

 

 

TE

TEMP

 

Dw

 

 

 

 

 

 

DwBPF

 

 

 

 

 

 

 

 

 

D-C

7

 

 

 

 

42

FE

 

 

Tpp/Wpp

 

 

 

 

 

 

 

 

41

ABCD

 

 

 

 

 

 

 

 

 

 

 

 

40

OFC-1

 

 

 

 

 

 

39

OFC-2

 

 

 

 

 

 

38

AVCC

 

 

 

 

 

 

37

PS

 

 

 

 

 

RF

36

LP

Iy

8

 

 

 

 

35

EQ

Ix

9

 

 

 

 

34

AGND

FE

 

 

 

33

RF OUT

Jx

10

 

 

 

 

 

 

 

32

CCSL2

Jy

11

 

 

 

 

 

ABCD

 

 

31

VC

A

12

 

 

 

 

30

VREF075

A-C

13

 

 

 

PEAK/BOTM

29

PEAK

B

14

 

 

 

28

BOTM

 

 

 

 

 

 

 

 

 

 

TON-C

15

 

 

 

OF TRK

 

 

CIG

16

 

 

 

 

27

DGND

CDN

17

 

 

 

 

 

 

T-ON

 

26

OFTRK

PD-I

18

 

 

 

 

 

 

 

 

 

PD-NI

19

APC

 

 

 

 

 

PD-O

20

 

 

 

 

 

 

 

 

 

 

SERIAL

 

25

XRST

 

 

 

 

 

24

SCK

 

 

 

 

I/F

 

 

 

 

 

 

23

SBUS

 

 

ADIP

 

 

 

ADIP

21

 

 

 

 

 

 

 

 

 

 

 

DVDD

22

 

 

 

 

 

 

 

IC551

SC111257FCR2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPAIP

CPAIM

CPBIP CPBIM

 

 

CPAO

CPBO

VM3

RO3

PGND3

FO3

VM34

RO4

PGND4

FO4

 

 

 

 

42 41

40 39

 

 

38

37

36

35

34

33

32

31

30

29

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

VM4

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VC

 

 

 

VG

 

 

VC VG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRE DRIVER

 

 

PRE DRIVER

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

VG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PGNDW

43

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H-BRIDGE

 

VC

 

H-BRIDGE

VC

 

WO

44

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VMVW

45

 

DRIVER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27

RI4

VO

46

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26

FI4

 

PRE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PGNDUV

47

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

RI3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

FI3

UO

48

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

VG

VMU

49

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22

VC

 

 

 

 

 

 

 

 

 

 

 

VC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND2

50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

GND1

 

 

 

 

 

 

 

 

 

 

 

BIAS

 

 

 

 

CPWI

51

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

PWM24

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPVI

52

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19

FI1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

RI1

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

FI2

CPUI

53

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

RI2

COM

54

+

 

 

 

 

 

 

 

VC

 

 

 

 

 

 

VC

 

 

 

 

 

 

 

 

 

 

 

 

H-BRIDGE

 

 

 

H-BRIDGE

 

CPWO

55

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPVO

56

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VC

 

 

 

VG

 

 

VC VG

 

 

 

 

 

 

VC

3PHASE

 

 

 

PRE DRIVER

 

 

PRE DRIVER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

 

 

 

 

 

 

 

15

VM2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

3

4

5

6

7

8

9

10

11

12

13

14

 

 

 

 

CPUO

 

WI

VI

UI

PWM

OE

VM1

RO1

PGND1

FO1

VM12

RO2

PGND2

FO2

 

 

IC303

NJM2173AV

 

 

 

 

 

 

 

 

 

 

 

 

IC1002 XC61CN1102MR (MZ-G750) IC1004 XC61CN1702MR (MZ-G750) IC1005 XC61CN1002MR (MZ-G750)

VREF

 

 

1

2

3

VOUT

VSS

VIN

IC1006

XC6371C271PR (MZ-G750)

CE

 

VOUT

NC

3

 

2

1

CHIP ENABLE

VDD

 

VREF

 

 

 

SLOW

 

PHASE

 

 

COMP

 

START

 

 

 

 

 

VLX

 

PWM/PFW

 

 

CONTROL

 

LIMITER

 

 

 

OSC

 

 

 

 

 

 

BUFFER

 

4

 

5

 

EXT

 

VSS

 

 

DC

 

MIC

 

 

 

OUT2

CUT2

IN2

V+2

GV

STBY

V+

14

13

12

11

10

9

8

 

 

 

 

GV

 

 

 

 

 

 

 

REG

 

1

2

3

4

5

6

7

OUT1 DC IN1 MIC REG NOISE GND

CUT1 V+1

44 44

Page 44
Image 44
Sony MZ-R700 service manual IC501 SN761057DBT, IC551 SC111257FCR2, IC303, IC1006 XC6371C271PR MZ-G750

MZ-R700 specifications

The Sony MZ-R700 is a compact digital minidisc recorder that has made a significant mark in the portable audio landscape since its introduction. Known for its outstanding sound quality and portable design, it appeals to audiophiles and casual listeners alike. The MZ-R700 is lauded for its ability to record and playback high-quality audio, making it a go-to device for musicians, DJs, and anyone who values sound fidelity.

One of the main features of the MZ-R700 is its ability to record music in various formats. It supports the ATRAC (Adaptive Transform Acoustic Coding) compression format, which allows users to store more audio data on a minidisc while maintaining remarkable sound clarity. This technology ensures that even with compression, the audio remains rich and engaging.

The MZ-R700 comes equipped with a digital recording feature, enabling users to transfer tracks directly from CDs or other digital sources without sacrificing quality. It is compatible with a wide range of digital audio formats, allowing for flexibility in recording options. Additionally, the device offers various recording modes, giving users the choice between standard quality and long-play modes, depending on their needs.

Portability is a key characteristic of the MZ-R700. Weighing just a few ounces and featuring a sleek, ergonomic design, it fits comfortably in the hand and can easily be carried in a pocket or bag. Its user-friendly interface includes an LCD screen that displays track information, making it easy for users to navigate through their music library.

Another notable feature is its battery efficiency. The MZ-R700 is powered by a rechargeable lithium-ion battery, providing extended playback time. Users can enjoy hours of continuous music playback, making it perfect for long journeys or outdoor activities.

The popular mic input allows for live recordings, a feature that musicians and podcasters find particularly beneficial. Moreover, the unit supports various input options, including a line-in and a 3.5mm microphone jack, ensuring versatility for different recording needs.

In summary, the Sony MZ-R700 is a robust and feature-rich digital minidisc recorder that combines portability, superior sound quality, and user-friendly design. With advanced recording technologies and efficient battery life, it caters to a variety of audio enthusiasts, making it a remarkable choice for portable sound recording and playback.