Sony MZ-R50 service manual IC Block Diagrams Main 1/3 Section IC501 CXA2523AR-T4

Page 43

MZ-R50

rIC BLOCK DIAGRAMS – MAIN (1/3) SECTION –

IC501 CXA2523AR-T4

 

 

 

 

 

 

 

 

 

 

 

 

 

MORF O

MORF I

RFO

OPN

OPO

 

ADDC COMPP

 

COMPO

AGC I

RF AGC

RF

PEAK

 

48

47

46

45

44

 

43 42

 

41

40

39

38

37

 

 

 

 

USROP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RF AGC

 

EQ

 

 

RFA I

 

 

 

 

 

 

 

USRC

 

 

 

 

 

 

 

 

 

 

 

BPF3T

 

DET

EQ

 

I

1

 

RF A2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

HLPT

1

 

 

3T

 

PEAK3T

 

 

J

2

 

2

 

2

 

 

 

 

P-P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFST

PTGR

 

3T

 

WBL

TEMP

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

PEAK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CVB

 

2

 

1

 

 

BOTTOM

 

 

 

36 BOTM

 

 

 

2

 

 

PBH

 

 

VC

3

 

GRVA

GRV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WBL

 

 

 

35 ABCD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

4

 

 

 

 

 

 

 

 

 

 

 

34 FE

 

 

 

 

 

 

 

 

 

 

 

33 AUX

 

I VR

AA

 

 

 

 

 

 

 

 

 

 

 

 

 

ABCDA

 

 

 

 

BPFC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32 ADFG

B

5

 

 

 

 

 

 

 

 

 

 

 

31 ADAGC

 

I VR

 

 

 

 

 

 

 

 

 

 

 

 

BB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEA

 

 

 

 

 

 

30 ADIN

 

 

 

 

 

 

 

 

 

 

 

 

 

C

6

 

 

 

 

 

 

 

 

 

 

 

 

 

I VR

CC

 

 

 

 

 

 

 

 

DET

 

 

 

 

 

 

 

 

 

BPF 22

 

 

 

 

 

 

 

 

 

 

 

 

 

WBL

 

ADIP

 

 

 

29 ADFM

D

7

 

 

 

ATA

 

 

AGC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I VR

DD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WBL

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28 SE

E

8

 

 

 

 

 

 

PTGR

 

2

 

 

 

 

 

 

 

 

 

 

 

I VR

EE

 

EE °

 

 

 

 

 

 

SEA

 

 

 

 

 

 

 

 

 

 

 

 

27 CSLED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EFB

 

TESW

 

 

1

 

26 TE

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEA

 

 

F

9

 

 

 

 

 

 

 

 

 

 

 

 

 

I VR

FF

 

 

FF °

 

 

 

WBL

 

 

 

 

 

 

 

 

 

 

 

3T

 

VI CONV

25 WBLAD

 

 

 

FBAL

 

 

 

 

 

 

 

GSW 1V

 

 

 

 

 

 

EQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PD

10

 

 

AUXSW

 

 

 

BGR

 

 

 

 

 

 

 

 

 

COMMAND

 

 

 

 

 

 

 

 

 

 

SCRI - PARA

 

VREF

 

 

 

 

APC

11

 

 

 

 

 

 

 

 

 

 

 

 

DECODE

 

 

 

 

 

 

APCREF

12

 

 

 

 

 

 

 

 

 

 

 

 

 

13

14

 

15

16

17

18

19

20

21

22 23

 

24

 

GND

TEMPI

 

TEMPR

SWDT

SCLK

XLAT

XSTBY

FOCNT

VREF

EQADJ 3TADJ

 

VCC

– 61 –

Image 43
Contents NEW SpecificationsGeneral Table of ContentsDisassembly DiagramsSection Servicing Note General Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Upper Panel ASSY, Bottom Panel Assy Removal Section DisassemblyMechanism Deck MT-MZR50-143 Removal Main Board RemovalCLV Board Removal Optical PICK-UP ASSY, REC Board RemovalPower BOARD, Switch Board Removal Battery Case Assy RemovalSwitch Unit with JOG Dial Removal Test Mode Structure of Servo Mode Servo ModeVolume Cluster Display Adjusting MethodStructuer of Audio Mode Audio ModeStructure of Power Supply Mode Mecha ModeStructure of Mecha Mode Power supply ModeStructure of General Adjustment Mode General Adjustment ModeSide a Section AdjustmentsSide B Laser Power Check Low Reflection CD Traverse Adjustment Adjustment Location Pin No Pin name Description Section DiagramsAvss IC801 System Control CXP81960M-652R KEY3 Circuit Boards Location Block DiagramMIC Refer to page 61 for IC Block Diagram Schematic Diagram Main 1/3 SectionWaveforms Refer to page 62 for IC Block Diagrams Schematic Diagram Main 2/3 SectionRefer to page 64 for IC Block Diagrams Schematic Diagram Main 3/3 SectionIC Block Diagrams Main 1/3 Section IC501 CXA2523AR-T4 IC506 MPC18A20VM IC Block Diagrams Main 2/3 Section IC804 DS1302ZIC806 MB3800PNF IC807 AK93C45AV-L IC802 RS5RJ29261IC Block Diagram Main 3/3 Section IC303 AK4515-VQ Upper PANEL, Bottom Panel Section Section Exploded Views75 4-997-493-01 Spring LOCK,COMPRESSION 53 A-3293-759-A Switch BOARD, Complete55 A-3293-758-A Power BOARD, Complete Chassis Section124 4-972-546-01 Spring Worm GEAR,COMPRESSION Mechanism Deck SectionMotor Spindle CLV Main Section Electrical Parts ListTantalum MainInductor 0UH ELEMENT, StorageDiode Ferrite BeadExcept FR RES,CHIPMain Power Power REC Switch Sony Corporation
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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.