MZ-NF810/NF810CK

6-9. IC Pin Function Description

• IC801 CXD2680-203GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR)

Pin No.

Pin Name

I/O

 

Description

 

 

 

 

1

OSCI

I

Resonator connection terminal for the system clock (22.5792MHz)

 

 

 

 

2

OSCO

O

Resonator connection terminal for the system clock (22.5792MHz)

 

 

 

 

3

VREFL

O

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

 

 

 

 

4

AOUTL

O

Built-in D/A converter L-CH signal output

 

 

 

 

5

AOUTR

O

Built-in D/A converter R-CH signal output

 

 

 

 

6

VREFR

O

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

 

 

 

 

7

ASYO

O

Playback EFM duplex signal output

 

 

 

 

8

ASYI

I

Playback EFM comparator slice level input

 

 

 

 

9

BIAS

I

Bias current input terminal for the playback EFM comparator

 

 

 

 

10

RFI

I

Playback EFM RF signal input from the RF amplifier

 

 

 

 

11

PCO

O

Phase comparison output terminal for the playback EFM system master PLL

 

 

 

 

12

FILI

I

Filter input terminal for the playback EFM system master PLL

 

 

 

 

13

FILO

O

Filter output terminal for the playback EFM system master PLL

 

 

 

 

14

CLTV

I

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

 

 

 

 

15

PEAK

I

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

 

 

 

 

16

BOTM

I

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

 

 

 

 

17

ABCD

I

Light amount signal (ABCD) input from the RF amplifier

 

 

 

 

18

FE

I

Focus error signal input from the RF amplifier

 

 

 

 

19

VC

I

Middle point voltage input from the RF amplifier

 

 

 

 

20

ADIO

O

Monitor output terminal of A/D converter input signal Not used (open)

 

 

 

 

21

ADRB

I

The lower limit voltage of A/D converter input terminal (connected to the ground)

 

 

 

 

22

SE

I

Sled error signal input from the RF amplifier

 

 

 

 

23

TE

I

Tracking error signal input from the RF amplifier

 

 

 

 

 

24

AUX1

I

Auxiliary A/D input (fixed at

ÒHÓ in this set)

 

 

 

 

25

ADRT

I

The upper limit voltage of A/D converter input terminal (fixed at ÒHÓ in this set)

 

 

 

 

26

DCHG

I

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

 

 

 

 

27

APC

I

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

 

 

 

 

28

ADFG

I

ADIP duplex FM signal (22.05±1kHz) input from the RF amplifier

 

 

 

 

29

APCREF

O

Reference PWM signal output for the laser automatic power control to the RF amplifier

 

 

 

 

30

TRDR

O

Tracking servo drive PWM signal output (Ð) to the coil driver

 

 

 

 

31

TFDR

O

Tracking servo drive PWM signal output (+) to the coil driver

 

 

 

 

32

FFDR

O

Focus servo drive PWM signal output (+) to the coil driver

 

 

 

 

33

FRDR

O

Focus servo drive PWM signal output (Ð) to the coil driver

 

 

 

 

 

34

FS4

O

176.4kHz clock signal output

 

 

 

 

 

35

SFDR

O

Sled servo drive PWM signal output to the motor driver

 

 

 

 

36

SPRD

O

Spindle motor drive control signal output (U) to the motor driver

 

 

 

 

37

SPFD

O

Spindle servo drive PWM signal output to the motor driver

 

 

 

 

38

SPDV

O

Spindle motor drive control signal output (V) to the motor driver

 

 

 

 

39

SPDW

O

Spindle motor drive control signal output (W) to the motor driver

 

 

 

 

40

SPCU

I

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

 

 

 

 

41

SPCV

I

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

 

 

 

 

42

SPCW

I

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

 

 

 

 

43

SLDV

O

Sled motor drive control signal output (V) to the motor driver

 

 

 

 

44

SLDW

O

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

 

 

 

 

45

SLCU

I

Sled motor drive comparison signal input (U) from the motor driver

 

 

 

 

46

SLCV

I

Sled motor drive comparison signal input (V) from the motor driver

 

 

 

 

47

SLCW

I

Sled motor drive comparison signal input (W) from the motor driver

 

 

 

 

48

SRDR

O

Sled motor drive control signal output (U) to the motor driver

 

 

 

 

 

49

DIN

I

Digital audio signal input

 

 

 

 

 

 

50

DADT

O

Audio data output terminal

Not used (open)

 

 

 

 

 

50

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Sony MZ-NF810 service manual IC Pin Function Description
Page 49 Page 51

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.
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