Sony MZ-R50 Structure of Mecha Mode, Power supply Mode, Structure of Power Supply Mode

Page 29

6￿

 

7￿ 8￿ ￿

9

 

 

 

 

 

 

 

 

 

 

p key

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode : 150

 

 

 

 

 

DigitalMAGC Adjustment 3

 

Ó key

 

 

 

 

[Mecha Mode]

Set the test mode, press the + key, and set the mecha mode using the VOLUME + and – keys.

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

Structure of Mecha Mode

p key

Mode : 151

 

 

MAN UP SR

 

 

 

 

 

Ó key

p key

 

 

Mode : 152

 

 

MAN DOWN SR

 

 

 

 

 

Ó key

p key

 

 

Mode : 153

 

 

AUTO THD3

 

 

 

 

 

Ó key

p key

 

 

Mode : 154

 

 

AUTO LMT UP SR

 

 

 

Mode : 200

Mecha Mode

p key

Ókey

Mode : 210

 

M

 

Mechanism check

Ó key

 

p key

Mode : 211

 

 

EJECTMprohibited

p key

Ó key

Mode : 212

 

 

MagneticMhead ON

 

Ó key

 

 

Ó key

p key

 

 

Mode : 155

 

 

AUTO LMT DOWN SR

 

 

 

 

 

Ó key

p key

 

 

Mode : 156

 

 

MAN THD3

 

 

 

 

 

Ó key

p key

 

 

Mode : 157

 

 

MANU LMT UP SR

 

 

 

 

 

Ó key

p key

 

 

Mode : 158

 

 

MANU LMT DOWN SR

 

 

 

 

 

Ó key

p key

 

 

Mode : 159

 

 

THD1

 

 

 

 

 

Ó key

 

 

When thePkey is pressed at mode numbers 100, 110 to 114, the buzzer will sound.

When the VOLUME keys + and – are pressed at mode numbers 111 to 113, 123, 124, the volume of the headphone output will increase/decrease.

When the = key or + key is pressed, the volume of the headphone output will become maximum/minimum.

When the VOLUME keys + and – are pressed at mode numbers 121 or 122, the recording level will increase/decrease.

When the = key or + key is pressed, the recording level will become maximum/minimum.

The record LED lights up in mode numbers 121 to 124 and are off at mode numbers 110 to 114.

At mode numbers 121 to 124, the microprocessor will detect the port and automatically determine the input.

The following indicators light up with the deck sensor switches at ON.

At REFLECT switch ON : the “ f” indicator lights up

At MEDIA switch ON : the “SHUF” indicator lights up

At PROTECT switch ON : the “1” indicator lights up

At mode numbers 200, 210 to 212, the optical pick up can be moved to the outer circumference or inner circumference using the = or + key.

[Power supply Mode]

Set the test mode, press the + key, and set the power supply mode using the VOLUME + and – keys.

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

Structure of Power Supply Mode

Mode : 300

 

Ó key

Power supply mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

p key

 

 

 

 

 

 

 

 

 

 

 

Mode : 310

 

 

 

 

M

 

 

 

Power supply

 

 

 

discrimination test

 

 

 

 

 

 

 

 

Ó key

 

 

(Automatic discrimination)

 

Mode : 311

 

 

Ni MH

Ó key

key–or

Mode : 312

 

 

p key

 

+key

AM3 2

Ó key

 

 

 

VOLUME

p key

 

Mode : 313

 

 

 

 

DC IN

Ó key

 

 

 

p key

 

 

Mode : 314

 

 

EXT BATT

Ó key

 

 

 

p key

 

pkey Mode : 320 Charge test

Ó key

Mode : 321

Main Charge

p key

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Image 29
Contents NEW SpecificationsDisassembly Table of ContentsDiagrams GeneralSection 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 Volume Servo ModeStructure of Servo Mode Cluster Display Adjusting MethodStructuer of Audio Mode Audio ModeStructure of Mecha Mode Mecha ModePower supply Mode Structure of Power Supply ModeStructure of General Adjustment Mode General Adjustment ModeSide B Section AdjustmentsSide a Laser Power Check Low Reflection CD Traverse Adjustment Adjustment Location Pin No Pin name Description Section DiagramsAvss 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 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 IC806 MB3800PNF IC Block Diagrams Main 2/3 Section IC804 DS1302ZIC506 MPC18A20VM IC807 AK93C45AV-L IC802 RS5RJ29261IC Block Diagram Main 3/3 Section IC303 AK4515-VQ Upper PANEL, Bottom Panel Section Section Exploded Views55 A-3293-758-A Power BOARD, Complete 53 A-3293-759-A Switch BOARD, CompleteChassis Section 75 4-997-493-01 Spring LOCK,COMPRESSIONMotor Spindle Mechanism Deck Section124 4-972-546-01 Spring Worm GEAR,COMPRESSION CLV Main Section Electrical Parts ListTantalum MainDiode ELEMENT, StorageFerrite Bead Inductor 0UHExcept 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.