Sony MZ-R50 service manual Structuer of Audio Mode

Page 28

[Audio Mode]

Set the test mode, press the + key, and set the audio mode

1￿

2￿ 3￿

 

using the VOLUME + and – keys.

 

 

 

 

To set other modes, refer to “Structure of Test Mode”.

 

 

 

 

• Structuer of Audio Mode

 

p key

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode : 100

 

Ó key

 

 

 

 

 

Audio mode

 

 

 

 

 

 

p key

 

 

 

 

 

 

 

p key

 

Mode : 110

 

 

 

–key

 

 

 

M

 

 

 

or

 

 

Audio playback test

Ó key

p key

 

 

 

 

+key

 

 

 

 

 

 

 

 

p key

Mode : 111

 

 

 

VOLUME

 

key–

 

p key

 

 

L&R 1kHzM 0dB

 

 

 

 

 

 

 

 

 

 

Ó key

 

p key

 

 

 

 

 

 

or

 

 

Mode : 112

 

 

 

 

L 1kHzM0dB R-

 

 

+key

 

 

 

 

 

 

 

Ó key

 

p key

VOLUME

 

p key

Mode : 113

 

p key

 

 

 

 

 

 

 

 

 

 

 

 

L-

RM1kHz 0dB

 

 

 

 

p key

 

Ó key

 

 

 

 

Mode : 114

 

 

 

 

 

 

 

 

 

 

 

L&RM-

 

 

 

 

 

 

 

Ó key

 

 

 

 

 

 

 

 

p key

Mode : 140

p key

 

Mode : 120

 

 

 

 

DigitalMAGC Adjustment 2

 

 

M

 

 

 

 

 

 

Audio recording test

Ó key

 

 

 

 

 

 

 

p key

 

 

p key

 

 

 

 

 

 

Mode : 121

 

 

 

 

 

 

 

 

 

 

Manual recording

 

 

 

key

 

(LINE, MIC)

 

p key

 

 

 

 

 

 

 

 

 

Ó key

 

 

 

 

 

 

 

 

p key

 

 

 

 

 

 

or

Mode : 122

 

 

 

keyREC

 

 

 

+key

DEMP Manual recording

 

p key

 

 

 

 

 

 

 

(LINE, MIC)

 

 

VOLUME

key

 

 

 

 

Ó key

 

 

 

 

p key

 

 

 

 

 

Mode : 123

 

p key

 

 

 

 

 

 

 

AGC recording

 

 

 

 

 

 

 

 

REC

(LINE, OPT, MIC)

 

 

 

 

 

Ó key

key

p key

 

 

p key

Mode : 124

 

 

 

 

DEMP AGC recording

or

 

 

 

 

(LINE, OPT, MIC)

+key

 

 

 

 

 

Ó key

p key

 

 

 

 

VOLUME

 

 

 

 

 

p key

DigitalMAGC adjustment 1

Ó key

p key

 

Mode : 130

 

 

 

 

 

 

 

p key

Mode : 131

 

 

key

 

 

 

 

 

 

MICMUP SR

 

p key

 

 

 

Ó key

 

 

or

 

p key

 

 

 

 

Mode : 132

 

 

+key

 

 

 

 

 

 

 

 

 

MIC DOWNM

SR

 

p key

 

 

 

 

VOLUME

 

 

MICMTHDO

 

 

 

 

 

 

 

p key

 

Ó key

 

 

 

 

Mode : 133

 

 

 

 

 

 

 

 

 

 

 

Ó key

 

 

1￿

2￿ 3￿

 

4￿

5 6￿

7￿ 8￿ ￿

 

 

 

 

 

 

(To page 29)

 

 

 

 

 

 

– 28 –

 

4￿ 5

Mode : 134

MICMGAIN

Ókey

Mode : 135

MIC ATTACKM

Ókey

Mode : 136

MIC RECOVERM

Ókey

Mode : 137

MICMTHD2

Ókey

Mode : 138

MIC MGAIN 2

Ókey

Mode : 139

MICRTIME

Ókey

Ókey

Mode : 141

LINE UP SR

Ókey

Mode : 142

LINE DOWN SR

Ókey

Mode : 143

LINE THD0

Ókey

Mode : 144

LINE GAIN

Ókey

Mode : 145

LINE ATTACK

Ókey

Mode : 146

LINE RECOVER

Ókey

Mode : 147

LINE THD2

Ókey

Mode : 148

LINE GAIN2

Ókey

Mode : 149

LINE RTIME

Ókey

9

(To page 29)

Image 28
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 Structure of Servo Mode Servo ModeVolume 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 a Section AdjustmentsSide B Laser Power Check Low Reflection CD Traverse Adjustment Adjustment Location Section Diagrams Pin No Pin name DescriptionAvss 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 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 IC506 MPC18A20VM IC Block Diagrams Main 2/3 Section IC804 DS1302ZIC806 MB3800PNF 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,COMPRESSION124 4-972-546-01 Spring Worm GEAR,COMPRESSION Mechanism Deck SectionMotor Spindle Section Electrical Parts List CLV MainMain TantalumELEMENT, Storage DiodeFerrite Bead Inductor 0UHRES,CHIP Except FRMain 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.