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Procedure for checking electrical shock hazard via leakage current measurement.
Important safety information and cautions regarding laser products, including label locations.
Guidelines for grounding workbenches, yourself, and handling optical pickups to prevent ESD.
Steps for removing the main body's metal cover and front panel assembly.
Procedures for removing the CD changer mechanism, fan, and associated boards.
Instructions for removing main, speaker, power, amplifier, transformer, and regulator boards.
Steps for removing cassette, display system, CD eject, and switch boards.
Steps for disassembling front panel, tweeter, and sub panel for specific models.
Procedures for removing front panel, tweeter, and squawker speakers for specific models.
Steps for removing side cover, squawker, and front cover for specific models.
Steps for removing CD servo control board and CD tray assembly.
Procedures for removing CD loading, traverse, and pick units.
Steps for removing tray select switch board and cam unit.
Instructions for removing the actuator motor and drive belt.
Procedures for removing cams R1/R2, cam gear, and CG base assembly.
Steps for removing and reassembling playback, recording, and eraser heads.
Procedures for removing head amp board and capstan motor assembly.
Steps for removing capstan motor, flywheels, reel pulse board, and solenoid.
List of measurement instruments, conditions, and signal inputs for adjustments.
Important precautions and notes for performing measurements and adjustments.
Diagram showing locations for head azimuth, tape speed, and bias adjustments.
Procedures for confirming head angle and tape speed using test tapes.
Table of standard values for double tape speed, speed difference, and wow/flutter.
Procedure for adjusting recording bias current with reference values.
Steps for adjusting and confirming frequency characteristics.
Reference values for bias frequency and eraser current confirmation.
Instructions for cleaning the pickup lens and identifying symptoms of laser diode failure.
Steps for replacing the laser pickup, including initial checks and eye-pattern testing.
Block diagram and pin function description for the AN7345K IC.
Pin function details for the MN101C35DEA system controller IC.
Block diagram and pin function for the AN22000A-W servo head amplifier IC.
Block diagram and pin function for the LA1838 FM/AM IF amplifier IC.
Pin layout and block diagram for STK402/STK412 power amplifier ICs.
Pin layout and block diagram for the TDA7439 control volume IC.
Terminal layout and pin function for the BU2092/F port expander IC.
Procedure for checking electrical shock hazard via leakage current measurement.
Important safety information and cautions regarding laser products, including label locations.
Guidelines for grounding workbenches, yourself, and handling optical pickups to prevent ESD.
Steps for removing the main body's metal cover and front panel assembly.
Procedures for removing the CD changer mechanism, fan, and associated boards.
Instructions for removing main, speaker, power, amplifier, transformer, and regulator boards.
Steps for removing cassette, display system, CD eject, and switch boards.
Steps for disassembling front panel, tweeter, and sub panel for specific models.
Procedures for removing front panel, tweeter, and squawker speakers for specific models.
Steps for removing side cover, squawker, and front cover for specific models.
Steps for removing CD servo control board and CD tray assembly.
Procedures for removing CD loading, traverse, and pick units.
Steps for removing tray select switch board and cam unit.
Instructions for removing the actuator motor and drive belt.
Procedures for removing cams R1/R2, cam gear, and CG base assembly.
Steps for removing and reassembling playback, recording, and eraser heads.
Procedures for removing head amp board and capstan motor assembly.
Steps for removing capstan motor, flywheels, reel pulse board, and solenoid.
List of measurement instruments, conditions, and signal inputs for adjustments.
Important precautions and notes for performing measurements and adjustments.
Diagram showing locations for head azimuth, tape speed, and bias adjustments.
Procedures for confirming head angle and tape speed using test tapes.
Table of standard values for double tape speed, speed difference, and wow/flutter.
Procedure for adjusting recording bias current with reference values.
Steps for adjusting and confirming frequency characteristics.
Reference values for bias frequency and eraser current confirmation.
Instructions for cleaning the pickup lens and identifying symptoms of laser diode failure.
Steps for replacing the laser pickup, including initial checks and eye-pattern testing.
Block diagram and pin function description for the AN7345K IC.
Pin function details for the MN101C35DEA system controller IC.
Block diagram and pin function for the AN22000A-W servo head amplifier IC.
Block diagram and pin function for the LA1838 FM/AM IF amplifier IC.
Pin layout and block diagram for STK402/STK412 power amplifier ICs.
Pin layout and block diagram for the TDA7439 control volume IC.
Terminal layout and pin function for the BU2092/F port expander IC.
General| Brand | JVC |
|---|---|
| Model | MX-G78V |
| Category | Micro Music System |
| Language | English |
