Sony MZ-R50 service manual Adjusting Method, Cluster Display

Page 27

6￿

VOLUME +key or – key

7￿ 8￿

p key

p key

9

Mode : 046 Low reflectionMCD tracking

gain adjustment

Ó key

Mode : 047

Low reflection CD focus bias variable

(Cluster Display)

Ó key

• Adjusting Method

Note : There is basically no display for individual adjustment items. Only such upper position titles as SERVO, AUDIO, etc. (100s position) are displayed.

1.When the adjustment modes are set according to “Structure of Servo Mode”, the last two digits of the mode number and the adjustment value written in the EEPROM will be displayed blink- ing.

Mode No. (Last 2 digits)

5209 Adjustment value

p key

MMode : 050

 

 

CD playback adjustment

Ó key

(Blinks) Display of item

*1:+ key

:= key

VOLUME +key or – key

pkey

VOLUME +key or – key

*2:REC key

p key

 

 

Mode : 051

 

 

CD focusMsearch ON

 

 

 

p key

 

Ó key

 

 

Mode : 052

 

 

CD EF balance adjustment

 

 

 

 

p key

 

 

 

 

Ó key

 

*1

 

 

 

 

 

 

 

 

 

 

 

Mode : 053

 

 

 

 

 

 

 

 

 

 

 

 

 

CD ABC level adjustment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ó key

 

 

 

p key

 

 

 

 

 

 

 

 

 

 

Mode : 054

 

 

 

 

 

 

 

 

 

 

 

 

 

Laser CD read adjustment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ó key

 

 

 

p key

 

 

 

 

 

 

 

 

 

 

Mode : 055

 

 

 

 

 

 

 

 

 

 

 

 

 

CD focus gain adjustment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ó key

 

 

 

p key

 

 

 

 

 

 

 

 

 

 

 

 

Mode : 056

 

 

 

 

 

 

 

 

 

 

 

 

 

CD tracking gain adjustment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ó key

 

 

 

 

 

 

 

 

 

 

 

 

p key

 

 

Mode : 057

 

 

 

 

 

 

CD focus bias adjustment

 

 

 

 

 

 

 

 

 

(Cluster Display)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ó key

 

 

 

Mode : 060

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Full REC

 

 

 

 

Ó key

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

p key

 

 

Mode : 061

 

 

 

 

 

 

32 cluster full REC

 

 

 

 

 

 

 

 

 

(Cluster Display)

 

 

 

 

 

 

 

 

 

 

 

p key

 

 

 

Ó key

 

*2

 

 

 

 

 

Mode : 062

 

 

 

 

 

 

 

REC shock

 

 

 

 

 

 

 

 

 

 

 

 

 

(Cluster Display)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ó key

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

p key

 

 

Mode : 063

 

 

 

 

 

 

 

32 cluster PLAY

 

 

 

 

 

 

 

 

 

 

(Cluster Display)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ó key

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.When the Pkey is pressed, the following will be displayed and adjustments will be performed automatically.

Mode No. (Last 2 digits)

52 09

Adjustment value

(Blinks)

AUTO_ADJ

Automatic adjustment

being performed

Note : The adjustment value can be changed as desired using the VOLUME + and – keys, but try to avoid this as much as possible.

3.After the adjustments are completed, the item is displayed again and the adjustment value that was blinking lights up.

Mode No. (Last 2 digits)

5208 Adjustment value (Lights)

Display of item

• Cluster Display

Mode No. (Last 2 digits)

5209 Adjustment value (Blinks)

0264B 01 BLOCK error rate

AT error rate

Cluster value

• Nothing is performed at mode numbers 070 to 073.

1

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Image 27
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 Servo Mode Structure of 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 ModeSection Adjustments Side aSide B Laser Power Check Low Reflection CD Traverse Adjustment Adjustment Location Pin No Pin name Description Section DiagramsAvss IC801 System Control CXP81960M-652R KEY3 Block Diagram Circuit Boards LocationMIC Schematic Diagram Main 1/3 Section Refer to page 61 for IC Block DiagramWaveforms 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 IC Block Diagrams Main 2/3 Section IC804 DS1302Z IC506 MPC18A20VMIC806 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 SectionMechanism Deck Section 124 4-972-546-01 Spring Worm GEAR,COMPRESSIONMotor 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.