Sony MZ-N707 Vref MON, Vbus DET, Wk Det, Rec Key, Half Lock, Rmc Key, Avdd, Avss, Tslvdd, ID0

Page 51

MZ-N707

Pin No.

Pin Name

I/O

Description

 

 

 

 

 

104

XRST

I

System reset signal input from the power control

“L”: reset

 

 

 

 

 

105

STAND DET

I

Charging stand detection signal input terminal

 

 

 

 

 

106

VB MON

I

Voltage monitor input terminal (A/D input) of the UNREG power supply

 

 

 

 

107

CHG MON

I

Charge voltage monitor input (A/D input) from the power control

108

VREF MON

I

Clear reference voltage monitor input terminal (A/D input) from the RF amplifier

109, 110

SET KEY 1, 2

I

Key input terminal (A/D input) from the switch & liquid crystal display element module

 

 

 

 

111

VBUS DET

I

USB power supply voltage detection signal input terminal

 

 

 

 

112

HIDC MON

I

HIGH DC voltage monitor input terminal (A/D input)

 

 

 

 

113

WK DET

I

Set key and USB start switching detection signal input terminal (A/D input)

 

 

 

 

 

114

REC KEY

I

REC key input terminal (A/D input)

 

115

HALF LOCK

I

Open button detection switch input terminal (A/D input)

SW

Input “L” when the open button is pressed. Input “H” in other cases.

 

 

 

 

 

 

116

RMC KEY

I

Key input terminal (A/D input) from the remote commander attached headphone

 

 

 

 

117

AVDD

—

Power supply terminal (for the microcomputer analog) (+2.8V)

 

 

 

 

 

118

AVSS

—

Ground terminal (for the microcomputer analog)

 

 

 

 

 

119

TSMVDD

—

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

 

 

 

 

120

RMC DTCK

I/O

Serial data input/output with the remote commander attached headphone

121

TSLVDD

—

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

122, 123

NC

—

Not used

 

 

 

 

 

 

124

TAT

—

Not used

 

 

 

 

 

 

125

TAN

—

Not used

 

 

 

 

 

 

126

NAR

—

Not used

 

 

 

 

 

 

127

ID0

—

Not used

 

128

SAK

—

Not used

 

129

IT0

—

Not used

 

130

MITY

—

Ground terminal Not used

 

 

 

 

 

 

131

SUSPEND

O

USB suspend signal output terminal

 

 

 

 

 

 

132

USBIFVDD

—

Power supply terminal (for USB I/F) (+3.3V)

 

 

 

 

 

 

133

UDM

I

USB data (-) input terminal

 

 

 

 

 

 

134

UDP

I

USB data (+) input terminal

 

135

UPUEN

O

USB pullup resistor connection control output terminal

136

USBOSCVDD

—

Power supply terminal (for the USB oscillation circuit) (+2.4V)

 

 

 

 

 

137

UOSCI

I

Clock (48MHz) input terminal for the USB

 

 

 

 

 

 

138

UOSCO

O

Clock (48MHz) output terminal for the USB

 

 

 

 

 

 

139

USBOSCVSS

—

Ground terminal (for the USB oscillation circuit)

 

 

 

 

 

 

140 to

MODE1 to 3

O

Power supply control signal output for the over write head to the over write head drive

142

 

 

 

 

 

 

 

 

143

HD CON 1

O

Over write head control signal output to the over write head drive

144

PBVDD

—

Power supply terminal (+2.3V)

 

 

 

 

 

145

HD CON 2

O

Over write head control signal output to the over write head drive

 

 

 

 

 

146

XTEST

I

Input terminal for test mode set (normally: open)

“L”: test mode

 

 

 

 

 

147

XCS ADA

O

Chip select signal output to the A/D converter

 

 

 

 

 

148

XPD ADA

O

Power supply control signal output for the drive to the A/D converter

149

VDIOSC

—

Power supply terminal (for the OSC cell) (+2.4V)

 

150

OSCI

I

System clock (45.1584MHz) input terminal

 

151

OSCO

O

System clock (45.1584MHz) output terminal

 

 

 

 

 

 

152

VSIOSC

—

Ground terminal (for the OSC cell)

 

 

 

 

 

 

51

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Contents 873-458-01 SpecificationsMZ-N707 Flexible Circuit Board Repairing Table of ContentsDisassembly DiagramsSystem requirements Section Servicing NotesSection General Looking at the controlsDisassembly Flow Section DisassemblyUpper Panel Section Case LowerMechanism Deck MT-MZN707-177 LCD MODULE, Upper Panel SUB AssyMain Board Gear SA Screw M1.4 OP Service Assy LCX-5RHolder Assy Gear HA Releasing the Test Mode Section Test ModeSetting Method of Test Mode Operation in Setting the Test ModeN u a l Configuration of Test ModeManual Mode Transition Method in Manual Mode8 S 1 B Overall Adjustment ModeSELF-DIAGNOSIS Result Display Mode Self-Diagnosis Result Display Mode Setting MethodDescription of Indication History Reset the Error Display CodeDescription of Error Indication Codes Setting Method of Reset the Error Display CodeL a Y * * 0 Sound Skip Check Result Display ModeV r A t U l R s R y M p # # # # # #C O K * * 8 T O K * * 8S e t Section Electrical AdjustmentsS N V C C S O K ?R e c 1 * * 7 C d G n * * 3T F l g * * 7 R e c 0 * * 7U m * * 8 P b 2 * * 7P b 3 * * 7 P b 4 * * 7Power Supply Manual Adjustment L P W M * * 7H P W M * * 7 C p w H * * 7 P w m L * * 7P w m H * * 7 C p w L * * 7I t P w T T m p * * 0S e r E f P wMain Board Component Side IC501S y * * 0 S y 1S t CD and MO Overall Adjustment Items Adjustment Method of CD and MO Overall Adjustment ModeResume Clear Resume Clear Setting Method# # # S 0 0 0 S C l r 0Rewriting the Patch Data PreparationServicing Notes Pre-checkMZ-N707 MZ-N707 Block Diagram SERVO/USB Section Section DiagramsBlock Diagram Audio Section Block Diagram DISPLAY/KEY CONTROL/POWER Supply Section Lead Layouts Main Board Component Side Semiconductor LocationIC902 Components identified by mark 0or dotted F1VM Schematic Diagram Main Board 3/4 See page 42 for Waveforms KCT 22.7 ∝ s WaveformsIC302 TA2131FL EL IC Block Diagrams IC301 AK5354VT-E2IC501 SN761057A IC551 SC111258FCR2 IC601 XPC18A22AFCR2 IC901 XPC18A32FCR2 IC PIN Function Description SSB Data DRAMVSS0DVSS0 DVDD0REC OPR LED TrstVG CTL Aout SELREC KEY Vref MONVbus DET WK DETVrefr DavddVrefl AoutlIFVSS3 DVSS3DVDD3 IFVDD3Flashvss FlashvddUpper PANEL, Case Lower Section Section Exploded ViewsMT-MZN707-177 Main board section Chassis Section101 104 102 103 Main Board Section301 353 Section Main Electrical Parts ListMain XPC18A22AFCR2 Resistor OPEN/CLOSE Detect EMI Filter Card Operating Instruction Revision History

MZ-N707 specifications

The Sony MZ-N707, released in the early 2000s, is a remarkable portable MiniDisc player that represents a significant leap forward in digital audio technology. Known for its compact size and impressive sound quality, the MZ-N707 quickly became a favorite among music enthusiasts during its heyday.

One of the standout features of the MZ-N707 is its advanced ATRAC (Adaptive Transform Acoustic Coding) audio compression technology. This proprietary format allows for high-quality audio playback while minimizing file size, making it easier for users to store and carry their favorite tracks. The MiniDisc format supports a variety of bit rates, enabling listeners to choose between higher quality or more storage capacity based on their personal preferences.

The MZ-N707’s sleek and lightweight design is ideal for on-the-go listening, fitting comfortably in a pocket or bag. It boasts a clear LCD display that provides essential information such as track titles, playback time, and battery life, ensuring users stay informed while enjoying their music.

Battery life is another major selling point for the MZ-N707. With the ability to run for several hours on a single charge, this player is perfect for long journeys or extended listening sessions. Additionally, it uses a rechargeable lithium-ion battery, which was a welcome feature at the time, reducing the need for frequent battery replacements and promoting environmental sustainability.

Connectivity options also make the MZ-N707 an appealing choice. It comes with an integrated USB port for easy data transfer between the player and a computer, allowing users to upload their favorite audio tracks with minimal hassle. Furthermore, it supports various audio formats, enabling compatibility with a wide range of music sources.

The MZ-N707 is equipped with a range of customizable sound settings, including equalizer presets that allow users to tailor the audio output to fit their listening preferences. This flexibility enhances the user experience, making it suitable for different genres and environments.

In summary, the Sony MZ-N707 MiniDisc player features cutting-edge technology, portability, excellent battery life, and user-friendly options that appeal to audiophiles and casual listeners alike. Its legacy is a testament to Sony's commitment to innovation in portable audio solutions during the early 21st century. Whether for casual listening or serious music collection, the MZ-N707 remains a notable device in the history of digital audio.
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