Panasonic SJ-MJ88 Btom BAT Gairan MON3T Vrefi, FF2, Avdd, FF1, Adacl, Adacr, SEL0, SEL1, MONI4

Page 48

Pin

Mark

I/O

Function

No.

 

Division

 

45

ADIP

I

ADIP signal input terminal

46

PEAK

I

Servo ADC input terminal

47

BTOM

 

 

48

BAT

 

 

49

GAIRAN

 

 

50

MON3T

 

 

51

VREFI

I

Servo ADC input/voltage

 

 

 

reference for ADIP

 

 

 

comparator

52

FF2

I

Servo ADC input terminal

53

AVDD 0

Analog power supply

54

FF1

I

Servo ADC input terminal

55

AVSS 0

Analog GND

56

DD

I

Servo ADC input terminal

57

CC

 

 

58

BB

 

 

59

AA

 

 

60

AVDD 1

Analog power supply

61

AVSS 1

Analog GND

62

AVSS 2

 

 

63

ADACL

O

Audio output terminal (L-

 

 

 

ch.)

64

ADACR

O

Audio output terminal (R-

 

 

 

ch.)

65

AVDD 3

Analog power supply

 

 

 

(dedicated to audio DAC)

66

DVDD 1

Digital power supply

67

DVSS 1

Digital GND

68

SEL0

I

Connected to GND

69

RVDD 2

I

Power supply to internal

 

 

 

DRAM

70

RVSS 3

GND to internal DRAM

71

SEL1

I

Connected to GND

72,

TS1, TS2

 

 

73

 

 

 

74~78

MONI4

O

Monitor signal output

 

~MONI0

 

terminal (4~0)

79

TS3

I

Connected to GND

80

TSCTSY

O

Microprocessor interrupt

 

 

 

signal 4 output terminal

 

 

 

(for Monitor)

48

Image 48
Contents Portable MD Player Specifications Accessories Precaution of Laser Diode Handling the traverse deck optical pickup Grounding for electrostatic breakdown prevention Page Operation Checks and Component Replacement Procedures Page Check the P.C.B. as shown below Follow the of item Page Page Page Page Replacement for the traverse motor Page Page Page Replacement for the optical pickup Page Page Page Page Measurements and Adjustments Enter the adjustment mode T0E T1ET2E T3EAdjustment Procedure Reference Page Off-set automatic adjustment Checking the main units keys VOL+ VOLHold OFF OFFPage Page Page Page Page Page Page Schematic Diagram Notes Schematic Diagram Notes 12.1. IC1 AN86772FHKEBV RF AMP LDO LdinApcpd ArfoAdip RfswhlRfswpg GND2Rvdd DramLON TmdisyRvss FodpFodm SpdpBtom BAT Gairan MON3T Vrefi FF2Avdd FF1REM KEYBatt VREF+Ssclk BuzzerRST CfsyncPower CHKLED JitterSTBY2 BattchkMSP IN1R IN2FIN2R StallSpuin SpvinSpwin SpcomSLVM2 SlvoutSLPG1 SluoutH1FOUT H1PG1IN1F Replacement Parts List Screw Stopper Rubber ECUENC333KBQ PCB1 Cabinet Parts Location Packaging

SJ-MJ88 specifications

The Panasonic SJ-MJ88 is a portable mini disc player renowned for its compact design and impressive audio quality. Launched in the late 1990s, this device epitomized the transition in portable music technology from cassette tapes and CD players to the digital format of MiniDiscs. The SJ-MJ88 supports various audio formats, making it a versatile choice for music enthusiasts.

One of the standout features of the SJ-MJ88 is its ability to provide near-CD quality sound through the MiniDisc format. This was made possible by its ATRAC (Adaptive Transform Acoustic Coding) compression technology, which retains a significant amount of audio fidelity even though the files are compressed. Users appreciated the ability to record and create customized playlists, allowing for an engaging listening experience.

The SJ-MJ88 is compact and lightweight, designed for portability. It features a sleek, ergonomic body that fits easily into bags and pockets, making it an excellent companion for on-the-go music lovers. Despite its small size, the device was equipped with a robust rechargeable battery that offered long hours of playback time, a crucial factor when traveling.

Another compelling characteristic of the SJ-MJ88 is its user-friendly interface. The device is designed with intuitive buttons and a clear display, allowing users to navigate through tracks effortlessly. The inclusion of features like digital pitch control and a programmable memory further enhanced user interaction, providing customization options for the listening experience.

Additionally, the SJ-MJ88 included a solid set of digital editing tools, enabling users to edit their music on the track level, making it easy to rearrange songs or create unique mixes. This flexibility set it apart from its contemporaries and made it appealing to DJs and music producers.

Overall, the Panasonic SJ-MJ88 remains a memorable device within the history of personal audio technology, combining portability, quality sound, and user-friendly features into a compact mini disc player. Its legacy continues to be appreciated by loyal fans and collectors looking for a bridge between analog and digital music experiences, illustrating the innovation that Panasonic brought to the audio market during its time.