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Service procedures are intended for qualified electronic service technicians only.
Adjusting the chassis suspension for proper free play and alignment.
Ensuring the drive belt runs centered on the motor pulley.
Checking platter start-up times and component condition.
Mechanical adjustments for the auto-stop sensor mechanism.
Checking and adjusting tone arm lift cycle times.
Procedures for adjusting dust cover hinges and removing panels.
Lubrication guidelines for platter bearing and motor.
Identifying malfunctions via performance or current consumption.
Procedures for accessing and removing circuit boards.
Adjusting platter speed using potentiometers.
Electrical calibration of the auto-stop sensor.
Setting platter motor supply voltages and symmetry.
Verifying signal purity and DC offset levels.
Replacing mains fuse and switching voltage ranges.
Troubleshooting non-illuminating indicator lamps.
Adjusting the stroboscope to the correct mains frequency.
Overview of the platter motor and lift motor control circuitry.
How pushbutton commands control platter and lift motors.
Description of the platter motor oscillator circuit.
Description of the platter motor amplifier stages.
Explanation of the auto-stop circuit operation.
Description of the power supply and its stabilized voltages.
Visual breakdown of the turntable components for identification.
Detailed electronic circuit diagrams for reference.
Functional block diagram illustrating system interconnections.
Comprehensive lists of replacement parts with descriptions.
Service procedures are intended for qualified electronic service technicians only.
Adjusting the chassis suspension for proper free play and alignment.
Ensuring the drive belt runs centered on the motor pulley.
Checking platter start-up times and component condition.
Mechanical adjustments for the auto-stop sensor mechanism.
Checking and adjusting tone arm lift cycle times.
Procedures for adjusting dust cover hinges and removing panels.
Lubrication guidelines for platter bearing and motor.
Identifying malfunctions via performance or current consumption.
Procedures for accessing and removing circuit boards.
Adjusting platter speed using potentiometers.
Electrical calibration of the auto-stop sensor.
Setting platter motor supply voltages and symmetry.
Verifying signal purity and DC offset levels.
Replacing mains fuse and switching voltage ranges.
Troubleshooting non-illuminating indicator lamps.
Adjusting the stroboscope to the correct mains frequency.
Overview of the platter motor and lift motor control circuitry.
How pushbutton commands control platter and lift motors.
Description of the platter motor oscillator circuit.
Description of the platter motor amplifier stages.
Explanation of the auto-stop circuit operation.
Description of the power supply and its stabilized voltages.
Visual breakdown of the turntable components for identification.
Detailed electronic circuit diagrams for reference.
Functional block diagram illustrating system interconnections.
Comprehensive lists of replacement parts with descriptions.
General| Type | Automatic turntable |
|---|---|
| Speeds | 33 1/3, 45 RPM |
| Drive Method | Belt drive |
| Motor | AC synchronous motor |
| Pitch control | Yes |
| Effective tonearm length | 230 mm |
| Overhang | 15 mm |
| Platter | 3.2 kg, 300 mm diameter |
| Wow and flutter | ≤0.05% |
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