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General| Brand | Sony |
|---|---|
| Model | MDS-JB930 |
| Category | MiniDisc Player |
| Language | English |
Identifies similar models and mechanism types for reference.
Lists self-diagnosis error codes and their causes/remedies.
Step-by-step guide for accessing the error history display mode.
Details on selecting test modes and a table of error codes.
Essential safety checks before customer release.
Method for performing AC leakage testing on the unit.
Precautions for handling the optical pick-up and base unit.
Safety guidelines for checking laser diode emission.
Details on using the jig for BD board waveform checks.
Procedure to record optical pick-up IOP data.
How to read back recorded IOP data.
Instructions for performing a system microprocessor reset.
Procedures for checking laser power, traverse, and focus bias.
Checks for C PLAY, self-recording/playback, and temp compensation.
Steps to access and use the retry cause display.
Guide to understanding retry cause codes and their meanings.
Description of front panel buttons and their functions.
Instructions for setting the clock and date.
Procedure for modifying existing clock settings.
Method to view the current date and time.
Steps to remove the unit's outer case.
Detailed steps for front panel disassembly.
Steps for removing the main board assembly.
Procedure to remove the mechanism deck (MDM-5D).
Disassembly steps for the slider (cam) mechanism.
Details on base unit and BD board disassembly.
Steps for disassembling the SW board and loading motor.
Important safety warnings before entering test modes.
Methods for accessing and configuring test modes.
Procedure to exit test mode and return to standby.
Overview of button functions within test modes.
Lists available test modes, their numbers, and descriptions.
Steps for entering, operating, and ending continuous playback.
Steps for entering, operating, and ending continuous recording.
Functionality for reading and writing non-volatile memory.
Explains various displays in test mode: mode, error rates, addresses, auto gain, detrack, IVR.
Explains the meaning of various display indicators during operation.
Flowchart guiding adjustments after component replacement.
Safety notes for laser emission checks and pick-up handling.
Important precautions before performing adjustments.
Procedure for preparing a test disc for adjustments.
Procedure to check the temperature compensation offset.
Detailed checks for laser power and traverse mechanism.
How to analyze traverse waveforms using an oscilloscope.
Steps to check focus bias and tolerance.
Procedures for checking MO and CD error rates in C PLAY.
Steps to perform a self-recording/playback error rate check.
Resets adjustment values to their initial state.
Manages IOP data for the optical pick-up.
Adjusts for temperature variations.
Adjusts laser power output levels.
Detailed steps for adjusting laser power.
Steps for adjusting the traverse mechanism.
Adjusts traverse waveform for write power.
Steps to adjust focus bias based on C1 error rates.
Procedures for checking CD and MO error rates.
Checks focus bias and tolerance.
Adjusts auto gain for CD and MO signal outputs.
Diagram showing adjustment locations on BD board, side A.
Diagram showing adjustment locations on BD board, side B.
Block diagram illustrating the servo system's circuitry.
Block diagram illustrating the main section's circuitry.
Explains symbols and conventions for printed wiring boards.
Explains symbols and conventions for schematic diagrams.
Visual guide showing the location of each circuit board within the unit.
Printed wiring layout for the BD board, side A.
Printed wiring layout for the BD board, side B.
Schematic diagram for the BD board, covering part 1.
Schematic diagram for the BD board, covering part 2.
Circuit diagram for the SW board.
Component layout for the SW board.
Schematic diagram for the MAIN board, part 1.
Circuit diagram for the BAT board.
Schematic diagram for the MAIN board, part 2.
Schematic diagram for the MAIN board, part 3.
Printed wiring layout for the MAIN board, side A.
Printed wiring layout for the MAIN board, side B.
Printed wiring layout for the BAT board.
Printed wiring layout for the AC board, side A.
Printed wiring layout for the AC board, side B.
Circuit diagram for the AC board.
Printed wiring layouts for DISP, PSW, and HP boards.
Printed wiring layouts for KEY and VOL boards.
Circuit diagrams for PSW, VOL, HP, KEY, and DISP boards.
Block diagram for IC101 on the BD board.
Block diagram for IC121 CXD2656R.
Block diagram for IC152 BH6511FS-E2.
Block diagrams for IC100, IC203/204, IC300, and IC400.
Block diagram for IC200 CXD8735N-TP.
Block diagrams for IC700 and IC701.
Detailed pinout for IC101 on the BD board.
Detailed pinout for IC121 CXD2656R on the BD board.
Continued detailed pinout for IC121 CXD2656R.
Final detailed pinout for IC121 CXD2656R.
Detailed pinout for IC800, the system controller.
Continued pinout details for IC800.
Final pinout details for IC800, including motor control.
Exploded diagram of the chassis section and its components.
Exploded diagram of front panel components.
Exploded diagram of the mechanism section (MDM-5D).
Exploded diagram of the base unit section (MBU-5D).
Comprehensive list of electronic components with part numbers.
Detailed list of BD board components.
Component lists for BD and Display boards.
Component lists for DISP, HP, KEY, and MAIN boards.
Detailed lists of capacitors and connectors for the MAIN board.
Detailed lists of connectors, diodes, and ICs for the MAIN board.
Detailed lists of resistors and transistors for the MAIN board.
Continuation of the resistor list for the MAIN board.
Detailed component lists for MAIN, PSW, SW, and VOL boards.
List of screws and hardware used in the unit.
List of included accessories and packing items.
