Panasonic SJ-MJ88 manual Handling the traverse deck optical pickup

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3.Operating Instructions

4.Handling Precautions for Traverse Deck

The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).

4.1. Handling the traverse deck (optical pickup)

1.The traverse deck (optical pickup) is an extremely high-precision construction and must not be subjected to impact, excessive vibration, or other types of rough handling.

2.In order to prevent static electricity damage to the laser diode, use a short pin or similar tool to short the optical pickup’s flexible circuit boards after they have been disconnected from the main circuit board. (as shown in Fig. 1 )

3.Handle the flexible circuit boards with care; excessive force could cause them to be broken.

4.Do not turn the pre-set variable resistor (for adjustment of the laser power); it has been adjusted at the factory.

(as shown in Fig. 2 )

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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 JitterMSP STBY2Battchk IN2F IN1RIN2R StallSpvin SpuinSpwin SpcomSlvout SLVM2SLPG1 SluoutIN1F H1FOUTH1PG1 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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