Sony MZ-R50 IC506 MPC18A20VM, IC Block Diagrams Main 2/3 Section IC804 DS1302Z, IC806 MB3800PNF

Page 44

IC506 MPC18A20VM

 

 

 

 

 

 

 

 

 

 

 

 

RF

SS

DTC

NC

PGNDLG

VB

VIN

VIH

VGH

CIL

VCC

CK

COSC

MODE 1

MODE 2

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

 

 

 

 

 

 

 

 

 

 

CLK

 

 

 

 

 

 

 

 

 

 

 

 

CHARGE PUMP

 

 

 

SAW

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOGIC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRE DRIVER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OSC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EN

ENB

 

 

 

 

 

 

 

 

 

 

 

 

SAW

 

 

 

 

 

 

 

COMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SAW

 

 

 

 

 

 

 

 

 

 

 

 

 

COMP

 

 

 

 

 

 

 

 

 

 

 

 

 

VREF

 

 

PRE

 

 

EFM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DRIVER

 

 

LOGIC

 

 

 

 

 

OP

 

 

 

 

 

 

 

 

 

 

 

 

BIAS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VREF

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

INM

ERRID

ERRIV

GND

VSET

VG

VGL

PGNDG

PGNDB

HA

HB

PGNDA

GND

EFM

VERF

rIC BLOCK DIAGRAMS – MAIN (2/3) SECTION – IC804 DS1302Z

VCC2 1

X1 2

X2 3

GND 4

 

 

 

 

 

 

OSCILATOR

 

REAL TIME

 

AND DIVIDER

 

CLOCK

 

 

DATA BUS

RAM

ADDRESS BUS

COMMAND AND

CONTROL LOGIC

 

 

INPUT CHIFT REGISTERS

8 VCC1

7 SCLK

6 I/O

5 RST

IC806 MB3800PNF

 

 

 

 

 

 

-IN

1

 

REFERENCE

 

SAW-WAVE

 

8

FB

 

 

 

 

VOLTAGE

 

GENERATOR

 

 

 

 

 

ERROR

 

0.1V

 

 

 

 

 

 

1.25V

 

 

 

 

OSC

SCP

2

AMP

_

 

 

 

7

 

 

 

 

 

 

 

 

+

36K

±

 

 

 

 

 

 

 

±

 

OUTPUT

30K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5V

 

 

DRIVE

GND

VCC

3

 

 

 

 

6

 

 

500

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

DTC 0.6V

CIRCUIT

 

 

 

 

 

 

 

 

0.3V

 

 

 

 

 

 

 

 

 

 

BR/CTL

4

 

 

 

 

 

 

5

OUT

 

 

 

 

 

SOFT START

 

 

 

 

 

 

 

 

 

S.C.P.

 

 

 

 

 

 

 

 

 

 

– 62 –

 

 

Image 44
Contents Specifications NEWTable of Contents DisassemblyDiagrams GeneralSection Servicing Note General Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Section Disassembly Upper Panel ASSY, Bottom Panel Assy RemovalMain Board Removal Mechanism Deck MT-MZR50-143 RemovalOptical PICK-UP ASSY, REC Board Removal CLV Board RemovalBattery Case Assy Removal Power BOARD, Switch Board RemovalSwitch Unit with JOG Dial Removal Test Mode Volume Servo ModeStructure of Servo Mode Adjusting Method Cluster DisplayAudio Mode Structuer of Audio ModeMecha Mode Structure of Mecha ModePower supply Mode Structure of Power Supply ModeGeneral Adjustment Mode Structure of General Adjustment ModeSide B Section AdjustmentsSide a Laser Power Check Low Reflection CD Traverse Adjustment Adjustment Location Section Diagrams Pin No Pin name DescriptionAvss IC801 System Control CXP81960M-652R KEY3 MIC Block DiagramCircuit Boards Location Waveforms Schematic Diagram Main 1/3 SectionRefer to page 61 for IC Block Diagram Schematic Diagram Main 2/3 Section Refer to page 62 for IC Block DiagramsSchematic Diagram Main 3/3 Section Refer to page 64 for IC Block DiagramsIC Block Diagrams Main 1/3 Section IC501 CXA2523AR-T4 IC806 MB3800PNF IC Block Diagrams Main 2/3 Section IC804 DS1302ZIC506 MPC18A20VM IC802 RS5RJ29261 IC807 AK93C45AV-LIC Block Diagram Main 3/3 Section IC303 AK4515-VQ Section Exploded Views Upper PANEL, Bottom Panel Section53 A-3293-759-A Switch BOARD, Complete 55 A-3293-758-A Power BOARD, CompleteChassis Section 75 4-997-493-01 Spring LOCK,COMPRESSIONMotor Spindle Mechanism Deck Section124 4-972-546-01 Spring Worm GEAR,COMPRESSION Section Electrical Parts List CLV MainMain TantalumELEMENT, Storage DiodeFerrite Bead Inductor 0UHRES,CHIP Except FRMain Power Power REC Switch Sony Corporation
Related manuals
Manual 20 pages 62.3 Kb

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.