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Essential safety checks to ensure customer and technician protection.
Procedure to measure and verify AC leakage current from the appliance to earth ground.
Highlights special safety characteristics of components and risks of using substitutes.
Exploded view and parts list for the external components of the player.
Detailed exploded view of the multi-mechanism assembly and its parts.
Illustrates key signal waveforms at various test points within the player's circuitry.
Outlines the procedures and order for performing necessary adjustments on the player.
Lists the essential equipment required for performing service adjustments and verifications.
Diagram showing key test points and locations of variable resistors for adjustments.
Explains how to enter and operate the player in its special test mode for service.
Procedure to verify and adjust the DC offset for the focus error amplifier.
Method to check for variations in tracking photo diode sensitivity and balance.
Procedure to align the pickup angle for optimal RF signal readouts.
Verifies the amplitude of the playback RF signal for proper disc reading.
Optimizes the focus servo loop gain for stable focusing performance.
Optimizes the tracking servo loop gain for smooth track following.
Details the pin arrangement and functions of the PD4458A IC for system control.
Illustrates the functional blocks and data flow within the player's system.
Compares miscellaneous parts across different models (PD-M602, PD-M552, PD-M502).
General
