Panasonic SJ-MJ88 manual Rem, Key, Batt, Vref+, Vdd, OSC2, OSC1, Mmod, Data, Link, Rxd

Page 49

12.3. IC201 (MN101C32GAE): SYSTEM CONTROL

Pin

Mark

I/O

Function

No.

 

Division

 

1

VREF-

—

AD reference input (-)

 

 

 

(connected to GND)

2

(AN0)

I

Remote cont. key input

 

REM

 

terminal

 

KEY

 

 

3

(AN1)

I

Unit key input terminal

 

KEY IN

 

 

4

(AN2)

I

Battery voltage det. input

 

BATT

 

terminal

5

(AN3)

—

Not used, connected to

6

(AN4)

 

GND

7

(AN5)

 

 

8

(AN6)

 

 

9

(AN7)

—

Not used, connected to

 

 

 

power supply terminal

10

VREF+

—

AD reference input (+)

 

 

 

(connected to power

 

 

 

supply)

11

VDD

—

Power supply terminal

12

OSC2

O

System clock output

 

 

 

terminal (F=6MHz)

13

OSC1

I

System clock input

 

 

 

terminal (F=6MHz)

14

VSS

—

GND terminal

15

XI

—

Sub clock input terminal

 

 

 

(Not used, connected to

 

 

 

GND)

16

XO

—

Sub clock output terminal

 

 

 

(Not used, open)

17

MMOD

—

Memory mode switching

 

 

 

input terminal (Not used,

 

 

 

connected to GND)

18

REM

O

LCD driver data output

 

DATA

 

terminal

19

LINK

I

Link serial communication

 

RXD

 

RXD input terminal

20

—

—

Not used, open

21

SSDW

O

Write data output terminal

 

 

 

for CPU interface

49

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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 T1E T0ET2E T3EAdjustment Procedure Reference Page Off-set automatic adjustment Checking the main units keys VOL VOL+Hold OFF OFFPage Page Page Page Page Page Page Schematic Diagram Notes Schematic Diagram Notes 12.1. IC1 AN86772FHKEBV RF AMP Ldin LDOApcpd ArfoRfswhl AdipRfswpg GND2Dram RvddLON TmdisyFodp RvssFodm SpdpFF2 Btom BAT Gairan MON3T VrefiAvdd FF1KEY REMBatt VREF+Buzzer SsclkRST CfsyncCHK PowerLED JitterBattchk STBY2MSP IN2F IN1RIN2R StallSpvin SpuinSpwin SpcomSlvout SLVM2SLPG1 SluoutH1PG1 H1FOUTIN1F 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.
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