Sony MZ-N707 Davdd, Vrefl, Aoutl, Vrefr, Davss, Asyo, Asyi, AVD1, Bias, Rfi, AVS1, Pco, Fili, Apc

Page 52

MZ-N707

Pin No.

Pin Name

I/O

Description

 

 

 

 

 

 

153

DAVDD

—

Power supply terminal (for the built-in D/A converter) (+2.4V)

 

 

 

 

154

VREFL

I

Reference voltage input terminal (for the built-in D/A converter L-CH)

 

 

 

 

 

 

 

155

AOUTL

O

Built-in D/A converter (L-CH) output terminal

 

 

 

 

 

 

 

 

 

 

156

AOUTR

O

Built-in D/A converter (R-CH) output terminal

 

 

 

157

VREFR

I

Reference voltage input terminal (for the built-in D/A converter R-CH)

158

DAVSS

—

Ground terminal (for the built-in D/A converter)

 

 

 

 

 

 

 

 

 

 

159

ASYO

O

Playback EFM duplex signal output terminal

 

 

 

 

 

 

 

 

 

160

ASYI

I

Playback EFM comparison slice level input terminal

 

 

 

 

 

 

161

AVD1

—

Power supply terminal (for the DSP asymmetry system analog) (+2.4V)

 

 

 

 

 

162

BIAS

I

Bias current input terminal for the playback EFM comparison

 

163

RFI

I

Playback EFM the RF signal input from the RF amplifier

 

164

AVS1

—

Ground terminal (for the DSP asymmetry system analog)

 

 

 

 

 

165

PCO

O

Phase comparison output terminal for the playback EFM system master PLL

 

 

 

 

 

166

FILI

I

Filter input terminal for the playback EFM system master PLL

 

 

 

 

 

167

FILO

O

Filter output terminal for the playback EFM system master PLL

 

 

 

 

168

CLTV

I

Internal VCO control voltage input terminal for the playback EFM system master PLL

169

PEAK

I

Peak hold signal input of the light amount signal (RF/ABCD) from the RF amplifier

170

BOTM

I

Bottom hold signal input of the light amount signal (RF/ABCD) from the RF amplifier

171

ABCD

I

Light amount signal (ABCD) input from the RF amplifier

 

 

 

 

 

 

 

172

FE

I

Focus error signal input from the Focus error amplifier

 

 

 

 

 

 

173

AUX1

I

Support signal (I3 signal/temperature signal) input terminal (A/D input)

 

 

 

 

 

 

 

174

VC

I

Middle point voltage (+1.1V) input terminal

 

 

 

 

 

 

 

 

175

ADIO

O

Monitor output terminal of A/D converter input signal

Not used

176

ADRT

I

A/D converter the upper limit voltage input terminal (fixed at

“H” in this set)

177

AVD2

—

Power supply terminal (for the DSP servo analog system) (+2.4V)

 

 

 

 

 

 

 

178

AVS2

—

Ground terminal (for the DSP servo analog system)

 

 

 

 

 

 

 

 

179

ADRB

I

A/D converter the lower limit voltage input terminal (fixed at

“L” in this set)

 

 

 

 

180

SE

I

Servo signal monitor input terminal (A/D input) from the RF amplifier

 

 

 

 

 

181

TE

I

Tracking error signal input from the Tracking error amplifier

 

182

DCHG

—

Connecting terminal with the analog power supply of the low impedance (fixed at “H” in this set)

183

APC

I

Error signal input for the laser automatic power control (fixed at “H” in this set)

 

 

 

 

 

 

184

CKRF

O

Clock output terminal for the RF amplifier control

Not used

 

 

 

 

 

 

 

185

DTRF

O

Data output terminal for the RF amplifier control

Not used

 

 

 

 

 

 

186

XLRF

O

Latch signal output terminal for the RF amplifier control

Not used

 

 

 

 

 

 

 

187

DVSS2

—

Ground terminal (for the DSP block)

 

 

 

188

DVDD2

—

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

 

 

 

189

XTSL

I

Input terminal for the frequency set up of the system clock

 

“L”: 45.1584MHz, “H”: 22.5792MHz (fixed at “L” in this set)

 

 

 

 

 

 

 

 

 

190

DIN1

I

Input terminal of the record system digital audio signal

 

 

 

 

 

 

 

 

 

191 to

NC

O

D/A converter PWM signal output terminal Not used

 

 

193

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

194

DADT

O

Audio data output terminal Not used

 

 

 

 

 

 

 

 

 

 

195

ADDT

I

Data input from the external A/D converter

 

 

 

196

LRCK

O

L/R sampling clock signal (44.1KHz) output to the external A/D converter

197

XBCK

O

Bit clock signal (2.8224MHz) output to the external A/D converter

198

FS256

O

11.2896MHz clock signal output to the external A/D converter

 

 

 

 

 

199

NC

I

Ground terminal Clock signal input from the external VCO

Not used

 

 

 

 

 

 

 

52

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Contents Specifications 873-458-01MZ-N707 Table of Contents DisassemblyDiagrams Flexible Circuit Board RepairingSection Servicing Notes System requirementsLooking at the controls Section GeneralSection Disassembly Disassembly FlowCase Lower Upper Panel SectionLCD MODULE, Upper Panel SUB Assy Mechanism Deck MT-MZN707-177Main Board OP Service Assy LCX-5R Gear SA Screw M1.4Holder Assy Gear HA Section Test Mode Setting Method of Test ModeOperation in Setting the Test Mode Releasing the Test ModeConfiguration of Test Mode Manual ModeTransition Method in Manual Mode N u a lOverall Adjustment Mode SELF-DIAGNOSIS Result Display ModeSelf-Diagnosis Result Display Mode Setting Method 8 S 1 BReset 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 V rA t U l R s R y M p # # # # # # L a Y * * 0T O K * * 8 C O K * * 8Section Electrical Adjustments S N V C CS O K ? S e tC d G n * * 3 T F l g * * 7R e c 0 * * 7 R e c 1 * * 7P b 2 * * 7 P b 3 * * 7P b 4 * * 7 U m * * 8L P W M * * 7 Power Supply Manual AdjustmentH P W M * * 7 P w m L * * 7 P w m H * * 7C p w L * * 7 C p w H * * 7T T m p * * 0 S e rE f P w I t P wIC501 Main Board Component SideS y 1 S y * * 0S t Adjustment Method of CD and MO Overall Adjustment Mode CD and MO Overall Adjustment ItemsResume Clear Setting Method # # # S 0 0 0S C l r 0 Resume ClearPreparation Servicing NotesPre-check Rewriting the Patch DataMZ-N707 MZ-N707 Section Diagrams Block Diagram SERVO/USB SectionBlock Diagram Audio Section Block Diagram DISPLAY/KEY CONTROL/POWER Supply Section Lead Layouts Semiconductor Location Main Board Component SideIC902 Components identified by mark 0or dotted F1VM Schematic Diagram Main Board 3/4 See page 42 for Waveforms KCT Waveforms 22.7 ∝ sIC Block Diagrams IC301 AK5354VT-E2 IC302 TA2131FL ELIC501 SN761057A IC551 SC111258FCR2 IC601 XPC18A22AFCR2 IC901 XPC18A32FCR2 IC PIN Function Description DRAMVSS0 DVSS0DVDD0 SSB DataTrst VG CTLAout SEL REC OPR LEDVref MON Vbus DETWK DET REC KEYDavdd VreflAoutl VrefrDVSS3 DVDD3IFVDD3 IFVSS3Flashvdd FlashvssSection Exploded Views Upper PANEL, Case Lower SectionChassis Section MT-MZN707-177 Main board sectionMain Board Section 101 104 102 103301 353 Main Electrical Parts List SectionMain 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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