Sony MZ-R50 Schematic Diagram Main 2/3 Section, Refer to page 62 for IC Block Diagrams

Page 41

MZ-R50

6-6. SCHEMATIC DIAGRAM – MAIN (2/3) SECTION –

r Refer to page 62 for IC Block Diagrams.

Note:

•All capacitors are in μF unless otherwise noted. pF: μμF 50 WV or less are not indicated except for electrolytics and tantalums.

•All resistors are in Ω and 1/4 W or less unless otherwise specified.

•A : B+ Line.

•Power voltage is dc 6V and fed with regulated dc power supply from external power voltage jack (J901).

•Voltages and waveforms are dc with respect to ground

under no-signal conditions. no mark : PB

( ) : REC

•Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal produc- tion tolerances.

•Signal path.

E : PB

a : REC

N : MIC

– 53 –

– 54 –

– 55 –

– 56 –

Image 41

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.