IC801 SYSTEM CONTROL (CXP81960M-652R)

Pin No.

Pin name

I/O

 

 

 

Description

 

 

 

 

 

 

1

CLCS

O

Chip select output to real time clock (IC804).

 

 

 

 

 

 

 

 

2

XRST

O

Reset output.

L : Reset

 

 

 

 

 

 

 

3

WRPWR

O

Laser power switching signal output.

 

 

 

 

 

 

4

TX

O

Write data transfer timing output.

 

 

 

 

 

 

 

5

SENSE

I

Internal status (SENSE) input.

 

 

 

 

 

 

 

 

 

6

LDON

O

Laser ON signal.

H : ON

 

 

 

 

 

 

 

 

7

XSHOCK

I

Track jump detection input.

 

 

 

 

 

 

 

 

 

8

––––

 

–

Not used (Open).

 

 

 

 

 

 

 

9

INLS

I

Detecting switch for internal circuit of sleding.

Internal circuit : L

 

 

 

 

 

 

10

PROTECT

I

Disc write protect switch.

H : Protect

 

 

 

 

 

 

 

11

DATA

O

Data output to remote control.

 

 

 

 

 

 

 

 

12

HOLD

I

Hold switch input (This unit).

L : Hold

 

 

 

 

 

13

WP

I

Wake-up signal input from remote control key and this unit key.

 

 

 

 

14

OPEN

I

Detecting switch for opening and closing of the upper cover. Close : L

 

 

 

 

 

 

15

CLOCK

I

CLOCK SET switch input.

 

 

 

 

 

 

 

 

 

16

CLK SDIO

I

Serial clock input.

 

 

 

 

 

 

 

 

17

EVR DATA

I

Electric volume control data input.

 

 

 

 

 

 

 

18

PUSH JOG

I

Push JOG switch input.

 

 

 

 

 

 

 

 

 

19

LCD STB

O

LCD standby output.

 

 

 

 

 

 

 

 

20

CL SCK

O

Serial clock output for real time clock (IC804).

 

 

 

 

 

 

 

 

21

SDI2

I

Serial data input.

 

 

 

 

 

 

 

 

 

22

SYNC REC

I

SYNCHRO REC switch input.

 

 

 

 

 

 

 

23

D. B. B

I

DIGITAL MEGA BASS switch input.

 

 

 

 

 

 

 

 

24

XLINEDET

I

Line input detect.

L : Line

 

 

 

 

 

 

 

 

 

25

AVLS

I

AVLS switch input.

L : ON

 

 

 

 

 

 

 

 

26

XTEST

I

Test mode terminal.

L : Test mode

 

 

 

 

 

 

 

27

XDCIN

I

DC input detect.

L : DC IN

 

 

 

 

 

 

 

28

KANA SE L

–

Not used (Fixed at “H”).

 

 

 

 

 

 

29

AM3 ON

O

This is at “H” level during external battery operation.

 

 

 

 

 

 

30

XP CONT

O

Power control output. L : ON

 

 

 

 

 

 

 

31

LIP ON

O

Outputs H while operating with a lithium battery.

 

 

 

 

 

 

 

 

32

XREC LED

O

REC LED control.

L : ON

 

 

 

 

 

 

 

 

 

 

33

MODE2

O

Head drive (IC506) control signal output.

 

 

 

 

 

34

MODE1

O

 

 

 

 

 

 

 

 

 

 

 

35

XRF STBY

O

Power control output to RF amplifier (IC501).

 

 

 

 

 

 

 

36

XLCD ON

O

LCD ON/OFF control.

L : ON

 

 

 

 

 

 

37

MP

–

Microprocessor mode input (Fixed at “L”).

 

 

 

 

 

 

 

38

XMRST

I

Microprocessor reset input.

 

 

 

 

 

 

 

 

 

39

VSS

–

Ground.

 

 

 

 

 

 

 

 

 

40

XTAL

–

System clock (12MHz).

 

 

 

 

 

 

 

 

41

EXTAL

–

System clock (12MHz).

 

 

 

 

 

 

 

42

CS

–

Chip Select input (Connected to +2.8V).

 

 

 

 

 

 

 

43

––––

 

– Not used (Fixed at “L”).

 

 

 

 

 

 

 

 

 

44

LCD DATA

O

LCD data output.

 

 

 

 

 

 

 

 

 

 

45

LCD SCK

O

Serial clock output.

 

 

 

 

 

 

 

 

 

 

46

––––

 

–

Not used (Open).

 

 

 

 

 

 

 

 

 

47

––––

 

–

Not used (Open).

 

 

 

 

 

 

 

 

48

HIDCMNT

I

Voltage monitor DC input.

 

 

 

 

 

 

 

 

49

KEYR

I

Remote control key input.

 

 

 

 

 

 

 

50

AVSS

–

Ground terminal for A/D converter.

 

 

 

 

 

 

 

 

 

– 37 –

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Image 37
Sony MZ-R50 service manual IC801 System Control CXP81960M-652R
Page 36 Page 38

MZ-R50 specifications

The Sony MZ-R50, launched in the late 1990s, is a notable model in the MiniDisc player genre, which revolutionized how consumers listened to music. Part of Sony's first generation of MiniDisc recorders, the MZ-R50 quickly gained popularity for its sleek design and innovative features.

One of the standout features of the MZ-R50 is its compact size and lightweight construction. It weighs just 160 grams, making it one of the most portable audio devices of its time. This portability paired with a stylish aesthetic allowed users to carry their music with ease, appealing to young, active lifestyles.

The MZ-R50 utilizes MiniDisc technology, which employs a small, flat disc encased in a protective shell. This format offers superior sound quality compared to cassette tapes, allowing for digital recording and playback. Users can record audio directly onto the disc in real-time or transfer music from CDs with ease. The player supports several recording modes, including LP2 and LP4, which allow users to maximize recording time without sacrificing quality.

Another significant feature of the MZ-R50 is its impressive battery life. It can run for up to 10 hours on a single charge, enabling long listening sessions without frequent recharging. The device also includes a digital pitch control, allowing users to change the tempo of tracks without affecting the pitch, which is especially useful for musicians and DJs.

Moreover, the MZ-R50 incorporates Sony's ATRAC (Adaptive Transform Acoustic Coding) compression technology. This advanced algorithm was designed to reduce the file size of audio while maintaining high sound fidelity, ensuring that music stored on MiniDiscs sounded close to the original recording. The player is compatible with both standard and long-play MiniDiscs, providing flexibility for users who want to store more music on a single disc.

In terms of connectivity, the MZ-R50 features an optical input for high-quality digital recording from other devices, along with a headphone output and a line out option for connecting to external speakers or audio systems. Its user-friendly interface allows for easy navigation through tracks and playlists, making it accessible for users of all ages.

Overall, the Sony MZ-R50 remains a beloved piece of audio technology, reflecting a unique combination of portability, sound quality, and user-friendly features, establishing its place in the history of personal music players. Its legacy continues to inspire later generations of audio enthusiasts.
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