Sony MZ-R700 service manual Main Board, Block Diagram Audio Section

Page 36

MZ-G750/R700

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6-3. BLOCK DIAGRAM — AUDIO SECTION —

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAIN BOARD

(2/3)AUDIO SECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPTICAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RECEIVER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIF B+

 

OPT CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q302

 

 

 

 

 

 

 

 

 

 

 

 

DIN1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J301

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LINE IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(OPTICAL)

SERVO

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(LINE IN JACK)

SECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Page 35)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MIC AMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC303

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIN2

3

 

 

 

 

 

 

 

 

 

 

 

J303

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUT1

 

IN1

 

 

 

 

MIC

 

 

 

 

 

 

 

 

 

 

 

 

A/D

IP

LIN1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDTO

1

 

 

 

 

1

 

3

 

 

 

(PLUG IN POWER)

 

 

ADDT

 

 

 

 

 

 

 

9

 

CONVERTER

GAIN

RIN2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

&

AMP

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUT2

 

IN2 12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HPF

 

RIN1

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUDIO

 

 

 

 

 

 

 

 

BIAS

STBY

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I/F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROLLER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

BCLK

A/D CONVERTER

 

 

 

 

 

 

 

 

 

 

SYSTEM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC301

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

LRCK

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL/POWER

4

X MIC DET

J302

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEADPHONE AMP

 

 

 

i

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Page 37)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC302

 

 

 

 

 

 

SYSTEM

 

 

SDO0

 

 

 

 

 

 

 

CDTI

 

 

 

 

 

 

22

INL

 

 

 

OUTL

2

 

 

 

 

SDO0

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

 

 

OUTA BEEP

24

 

 

 

CONTROL/POWER

3

 

 

 

 

 

 

AUDIO

 

 

 

 

 

 

 

 

 

 

 

 

 

SCK0

 

 

 

 

 

 

CCLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCK0

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

F801

 

SECTION

 

 

 

 

 

 

 

 

 

15

CSN

I/F

CLOCK

 

 

 

 

 

INR

 

 

 

OUT R

 

 

 

 

 

 

 

 

 

 

 

 

CONTROLLER

 

 

 

 

 

 

 

 

 

 

 

RVDD

 

 

 

 

 

 

 

 

 

 

DIVIDER

 

 

 

 

21

 

 

 

4

 

 

(Page 37)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

PDN

MCLK

 

 

 

 

 

 

 

 

 

 

OUTB BEEP 23

 

 

DTCK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KEY-R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REFERENCE

RGND

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

MUTING

 

BEEP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

VOLTAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VREF IN

SWITCHING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BEEP

MUTE

STBY

 

 

 

 

Q301

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STANDBY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

17

18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SYSTEM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL/POWER

5

VC B+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SECTION

 

 

 

 

 

 

 

70

69

203

204

 

 

 

71

 

 

29

30

215 192 191

193

183

218

240

 

(Page 37)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XBCK

LRCK

 

XCS ADA

XPD ADA

 

 

 

FS256

 

 

AOUTL

AOUTR

XOPT CTL XJAC DET OPT DET

XMIC DET

BEEP

MUTE

XHP STBY

 

RMC DTCK 142

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SYSTEM CONTROLLER,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDI0

179 SI0

 

 

 

 

 

 

 

 

 

DIGITAL SIGNAL PROCESSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16M BIT D-RAM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDO0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

180 SO0

 

 

 

 

 

 

 

 

 

IC801(2/3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCK0

 

 

 

 

XCS NV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

181 SCK0

 

 

 

 

 

 

 

OSCO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OSCI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

219

 

 

24

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SYSTEM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

6

RMC KEY

 

 

 

 

 

 

 

 

SDO0 SCK0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

/POWER

 

 

 

 

 

 

 

 

 

SDI0

 

 

 

X801

 

 

 

 

 

 

 

 

 

 

 

SECTION

 

 

 

 

 

 

 

 

 

 

 

 

45.1584MHz

 

 

 

 

 

 

 

 

 

(Page 37)

 

 

 

 

 

 

 

 

4

3

2

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Signal path

 

 

 

 

 

 

 

DO

DI

SK

XCS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

: PLAYBACK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EEPROM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

: REC(ANALOG IN)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

: REC(DIGITAL IN)

 

 

 

 

 

 

 

 

IC804

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

36

36

 

 

 

 

 

 

 

 

 

 

 

 

Image 36
Contents Specifications MZ-G750/R700Flexible Circuit Board Repairing MZ-G750/R700Table of Contents Electrical AdjustmentsDisassembly DiagramsSection Servicing Note Optical PICK-UP Flexible BoardSection General MZ-G750MZ-R700 Section Disassembly Panel ASSY, LowerPanel ASSY, Upper LCD Module Main BoardService ASSY, OP MD Mechanism DeckHolder Assy Motor Flexible BoardMOTOR, DC M602 MOTOR, DC M601, MOTOR, DC M603Section Test Mode 8888eVersion Ver 1.200 00 Configuration of Test Mode Manual ModeTransition method in Manual Mode ManualOverall Adjustment Mode Self-Diagnosis Result Display ModeSelf-Diagnosis Result Display Mode Setting Method LrefPw 1D 0Reset the error display code Description of Error Indication CodesSetting method of Reset the Error Display Code Description of Indication HistorySound Skip Check Result Display Mode Key Check ModeRPLAY SET OK Reset! 0 ResNV CC 0Res OK? 0 ResV1dat V5numV5dat AssySetTmp LaserLrefPw HrefPwConfiguration of overall adjustment Main Boardside aOverall Adjustment Mode Title Display Electrical Offset Adjusting MethodAdjustment Method of Overall CD and MO Adjustment Mode OfstPatch Data Rewriting When Nonvolatile Memory was Replaced Resume CC 0ResClr PatClr CC 0Patch 00 0 0D581E0D5900 0D59B20D6200 0D62040D6500 0D65200D6120 0D64000D64F4 0D651C0D6C00 0D6CF60D6D00 0D6D1C0D7500 0D751C0D7600 0D7603Section Diagrams IC PIN Function DescriptionPause KEY MIC SenseMIFVSS3 SET KEYDSPVDD0 DSPVSS0Xtsl LrckSldw SlcuSlcv SlcwOpen Close SW GND SWSET CODE0 SET CODE2Xhold SW Sycn RECFlashvdd FlashvssBlock Diagram Servo Section BoardBlock Diagram Audio Section Main BoardBlock Diagram System Control / Power Section Main Board 3/3 System CONTROL/POWER SectionPrinted Wiring Board Main Section Main Board Side aMotor Flexible Board Common note on Schematic Diagram WaveformsIC B/D 184 R104,204 Except US model10k US model 33k IC501 SN761057DBT IC551 SC111257FCR2IC303 IC1006 XC6371C271PR MZ-G750IC601 IC901IC301 AK5354VT IC302 TA2131FLSection Exploded ViewsPanel Section Chassis Section 56 @MD Mechanism Deck Section MT-MZR700-172 101 102 103 104122 110 112 111 109 103 117 119 120 118 105 106 108 107 115 121Main Electrical Parts List ResistorsMain Short FET Filter Miscellaneous Revision History

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.