MZ-NF810/NF810CK

Pin No.

Pin Name

I/O

 

 

 

 

Description

 

 

 

 

 

 

111

BATT_CTL

O

Control signal output for the voltage step up circuit in the external battery case Not used (open)

 

 

 

 

 

 

 

112

VREC_CTL

O

VREC voltage control signal output

Not used (open)

 

 

 

 

 

 

 

 

113

XRST_CHG_IC

O

Reset signal output to the battery charge control IC

 

 

 

 

 

 

 

 

114, 115

PD_S0, 1

O

PD IC mode changeover signal output to the optical pick up

 

 

 

 

 

 

 

 

 

116

LINK_MON

O

Linking area monitor signal output

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

117

PL_CTL

O

Plunger control signal output

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

118

GND_SW

O

Ground changeover switch control signal output

 

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

 

119, 120

NC

O

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

121

SLD_MON

I

Sled servo monitor signal input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

122

NC

O

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

 

123

SLEEP

O

System sleep control signal output to the power control

 

 

 

 

 

 

 

 

124

FFCLR

O

Input latch output for the start switching to the power control

 

 

 

 

 

 

125

CHGI_CTL1

O

Charge current limit ON/OFF control signal output at the time of adaptor use

 

 

 

 

126

CHGI_CTL2

O

Charge current limit value changeover control signal output at the time of adaptor use Not used (open)

 

 

 

 

 

 

 

127

ORANGE_LED

O

Orange LED ON/OFF control signal output

Not used (open)

 

 

 

 

 

 

128

CHG_LED

O

LED ON/OFF control signal output for CHG (charge display) Not used (open)

 

 

 

 

 

 

 

129

XTEST

I

Terminal for the test mode setting (normally open)

ÒLÓ: test mode

 

 

 

 

 

 

 

 

 

130

XRF_RST

O

Reset control signal output to the RF amplifier

ÒLÓ: reset

 

 

 

 

 

 

131

XEXT_PWR

I

External power supply (AC adaptor/charging stand) detection signal input

 

 

 

 

 

 

 

 

 

 

132

XHOLD_SW

I

HOLD switch input terminal

ÒLÓ: hold ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

133

COUT_MON

I

Traverse count measurement monitor input

 

 

 

 

 

 

 

 

 

134

CHG_ADSEL

O

A/D terminal of the battery charge contro IC output selection signal output

 

 

 

 

135

CHGI_SEL

O

Charge/discharge changeover control signal output for the current sense amplifier

 

 

 

 

 

 

 

 

 

 

 

136

XDC_IN

I

DC plug detection signal input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

137

SPDL_MON

I

Spindle servo monitor signal input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

138

XCS_PWR_IC

O

Chip select signal output to the power control

 

 

 

 

 

 

 

 

 

139, 140

D_EN1, 2

O

Control signal output for the D class headphone amplifier Not used (open)

 

 

 

 

 

 

141

XCS_LCD

O

Chip select signal output to the liquid crystal display module

 

 

 

 

 

 

 

 

142

LCD_STB

O

Strobe signal output to the liquid crystal display module

 

 

 

 

 

 

 

 

 

143

XRST_MTR_DRV

O

Reset control signal output to the motor driver

ÒLÓ: reset

 

 

 

 

 

 

 

 

144

XCS_NV

O

Chip select signal output to the nonvolatile memory

 

 

 

 

 

 

 

 

145

CHG_PWM

O

Output voltage control signal output to the battery charge control

 

 

 

 

 

 

146

VREC_PWM

O

PWM signal output for the Over write head drive power supply voltage control to the REC driver

 

 

 

 

147

NC

O

PWM signal output for the laser power supply voltage control to the power control Not used (open)

 

 

 

 

148

NJM_XMUTE

O

Muting control signal to the headphone amplifier (NJM type made by JRC) Not used (open)

 

 

 

 

 

149

D_VO_PWM

O

Power supply control signal output for the D class headphone amplifier

Not used (open)

 

 

 

 

 

 

 

150

XCS_REC_DRV

O

Chip select signal output to the REC driver

Not used (open)

 

 

 

 

 

 

 

 

151

T_MARK _SW

I

T MARK (track mark) switch input terminal

ÒLÓ: track mark detection

Not used (open)

 

 

 

 

 

152

JOG_A

I

Jog dial pulse input from the switch & liquid crystal display module

Not used (open)

 

 

 

 

 

153

JOG_B

I

Jog dial pulse input from the switch & liquid crystal display module

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

154, 155

NC

O

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

156

SSB_DATA

I/O

SSB data input/output with the RF amplifier

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

157

SSB_CLK

O

SSB clock output to the RF amplifier

 

 

 

 

 

 

 

 

 

 

 

 

 

 

158

VBUS_DET

I

USB power supply voltage detection terminal

 

 

 

 

 

 

 

 

 

159

VB_MON

I

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

 

 

 

 

 

160

CHG_MON

I

Decrement of voltage detection and charge/discharge current monitor input from the battery charge control

 

 

 

 

 

 

161

VREF_MON

I

Reference voltage monitor input (A/D input) from the RF amplifier

 

 

 

 

 

 

 

162, 163

SET_KEY_1, 2

I

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

 

 

 

 

 

 

164

CRADLE_DET

I

USB cradle or battery case detection signal input

Not used (connected to the ground)

 

 

 

 

 

 

 

 

 

165

HIDC_MON

I

HIGH DC voltage monitor input (A/D input)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Sony MZ-NF810 service manual Gndsw, Ffclr, Chgadsel, Chgisel, Xcsnv, Joga, Jogb, Ssbclk

MZ-NF810 specifications

The Sony MZ-NF810 is a notable entry in the portable digital music player market, primarily aimed at users who seek high-quality audio playback and advanced recording capabilities. This MiniDisc player is celebrated for its compact design, making it an ideal companion for on-the-go listeners who value both audio quality and portability.

One of the standout features of the MZ-NF810 is its support for ATRAC compression technology. ATRAC, short for Adaptive Transform Acoustic Coding, provides a means to compress audio files while still maintaining impressive sound fidelity. This technology was specifically designed to optimize audio for the MiniDisc format, allowing users to enjoy longer playtimes without sacrificing sound quality. The MZ-NF810 can store up to 40 hours of music on a single battery charge, a significant advantage for audiophiles and casual listeners alike.

The device also boasts a high-resolution LCD display, providing crucial information about the currently playing track, including title, artist, and remaining battery life. Navigation is smooth and user-friendly, allowing users to access their music collections with ease. In addition, the MZ-NF810 supports USB connectivity, enabling users to transfer music and files directly from their computers. This feature eliminates the need for additional software, streamlining the process of loading music onto the device.

An important aspect of the MZ-NF810 is its recording capabilities. The player allows users to record live audio directly onto MiniDiscs, providing the freedom to capture concerts, lectures, or personal notes. The addition of various recording modes, including long-play options, enhances its utility for users who need diverse functionality.

Sound quality is further augmented with features such as Dynamic Bass Boost and a five-band equalizer, allowing users to tailor their listening experience to their preferences. The MZ-NF810 also supports various audio formats, adding to its versatility as a personal audio device.

Lastly, the MZ-NF810's sleek and lightweight design makes it not only aesthetically pleasing but also comfortable to carry, making it a practical choice for those who lead active lifestyles. In summary, the Sony MZ-NF810 MiniDisc player stands out for its audio quality, recording features, and user-friendly design, catering to music enthusiasts who demand both performance and portability in their listening experience.