Sony MZ-R700 Sldw, Slcu, Slcv, Slcw, DIFVSS1, Efmo, MNT0, MNT1, MNT2, MNT3, Sense, Recp, DRAMVSS0

Page 32

MZ-G750/R700

Pin No.

Pin Name

I/O

 

Description

 

 

 

 

 

99

 

SLDW

O

Sled motor drive signal output (W) to the motor driver (IC551)/drive control signal

 

output (2+)

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

SLCU

I

Spindle motor drive comparison signal input (U) from the motor driver (IC551)

 

 

 

 

 

101

 

SLCV

I

Spindle motor drive comparison signal input (V) from the motor driver (IC551)

 

 

 

 

 

102

 

SLCW

I

Spindle motor drive comparison signal input (W) from the motor driver (IC551)

 

 

 

 

 

103

DIFVDD1

—

Power supply terminal (for DSP I/F) (+2.3 V)

 

 

 

 

 

 

 

104

DIFVSS1

—

Ground terminal (for DSP I/F)

 

 

 

 

 

 

 

105

 

EFMO

O

EFM encode data output for the record to the over write head drive (IC601)

 

 

 

 

 

 

106

 

MNT0

O

Internal DSP monitor output (0) terminal

Not used (open)

 

 

 

 

 

 

107

 

MNT1

O

Internal DSP monitor output (1) terminal

Not used (open)

 

 

 

 

 

 

108

 

MNT2

O

Internal DSP monitor output (2) terminal

Not used (open)

 

 

 

 

 

 

109

 

MNT3

O

Internal DSP monitor output (3) terminal

Not used (open)

 

 

 

 

 

110

 

SENSE

O

Internal DSP (SENS) monitor output terminal Not used (open)

 

 

 

 

 

111

 

TX

O

Record data output enable signal output monitor terminal of the internal DSP

 

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

 

112

 

RECP

O

Laser power changeover signal output monitor terminal Not used (open)

 

 

 

 

 

113

DAPVDD3

—

Power supply terminal (for DSP block) (+1.5 V)

 

 

 

 

 

 

114 – 117

 

NC

O

Output terminal for the external D-RAM

Not used (open)

 

 

 

 

 

 

118

DRAMVSS0

—

Ground terminal (for the external D-RAM)

 

 

 

 

 

119

DRAMVDD0

—

Power supply terminal (for the external D-RAM) (+2.4 V)

 

 

 

 

 

 

120 – 138

 

NC

O

Output terminal for the external D-RAM

Not used (open)

 

 

 

 

 

139

DRAMVDD1

—

Power supply terminal (for the external D-RAM) (+2.4 V)

 

 

 

 

 

 

140

DRAMVSS1

—

Ground terminal (for the external D-RAM)

 

 

 

 

 

 

141

TSB MST VDD

—

Power supply terminal (for TSB master communication) (+2.8 V)

 

 

 

 

 

142

RMC DTCK

I/O

TSB serial data input/output with the remote commander attached headphone

 

 

 

 

 

143

TSB SLV VDD

—

Power supply terminal (for I/F to TSB slave communication) (+2.3 V)

 

 

 

 

 

144

TSB SLVI

I

TSB slave signal input from the remote commander attached headphone (fixed at “L”)

 

 

 

 

 

145

(TSB SLVO)

O

TSB slave signal output from the remote commander attached headphone

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

146

 

TDI

I

Data input terminal for JTAG

Not used (open)

 

 

 

 

 

 

147

 

TMS

I

Test mode control input terminal for JTAG

Not used (open)

 

 

 

 

 

 

148

 

TCK

I

Clock input terminal for JTAG

Not used (open)

 

 

 

 

 

 

149

XTRST

I

Reset input terminal for JTAG

Not used (open)

 

 

 

 

 

 

150

 

TDO

O

Data output terminal for JTAG

Not used (open)

 

 

 

 

 

151

JTAGVDD

—

Power supply terminal (for JTAG) (+2.4 V)

 

 

 

 

 

 

 

152

JTAGVSS

—

Ground terminal (for JTAG)

 

 

 

 

 

 

 

153

MCUVDD2

—

Power supply terminal (for the microcomputer block) (+1.5 V)

 

 

 

 

 

154

MIFVDD0

—

Power supply terminal (for the microcomputer I/F block) (+2.3 V)

 

 

 

 

 

155

MIFVSS0

—

Ground terminal (for the microcomputer I/F block)

 

 

 

 

 

156, 157

TEST1, TEST0

I

Input terminal for the main test (normally fixed at “L”)

 

 

 

 

 

 

158

 

EVA

I

EVA/FLASH chip discrimination terminal

“L”: FLASH chip, “H”: EVA chip

 

 

 

 

 

 

 

159

(OPR LED)

O

Not used (open)

 

 

 

 

 

 

 

160

SSB DATA

I/O

Input/output of SSB serial data with RF amp (IC501)

 

 

 

 

 

 

161

SSB CLK

O

SSB serial clock output to RF amp (IC501)

 

 

 

 

 

 

162

MCUVSS0

—

Ground terminal (for the microcomputer block)

 

 

 

 

 

163

VREC PWM

O

Over write head control spare terminal Not used (open)

 

 

 

 

 

164

VL PWM

O

PWM for the laser automatic power supply voltage control signal output to the power

control (IC901)

 

 

 

 

 

 

 

 

 

 

 

 

 

165

VC PWM

O

PWM signal output for the system power supply voltage control to the power control

(IC901)

 

 

 

 

 

 

 

 

 

 

 

 

 

166

SPDL AUX PWM

O

PWM signal output for the spindle support to the motor driver (IC551)

 

 

 

 

 

 

 

167, 168

 

NC

O

Not used (open)

 

 

 

 

 

 

 

169

CLK SEL

O

System clock select signal output to the power control (IC901)

 

 

 

 

 

 

 

32

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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 Panel ASSY, Upper Section DisassemblyPanel ASSY, Lower LCD Module Main BoardService ASSY, OP MD Mechanism DeckHolder Assy Motor Flexible BoardMOTOR, DC M602 MOTOR, DC M601, MOTOR, DC M603Version Ver 1.200 00 Section Test Mode8888e 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 HistoryRPLAY Sound Skip Check Result Display ModeKey Check Mode 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 TA2131FLPanel Section SectionExploded Views 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.
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