Do you have a question about the Sony CFD-50 and is the answer not in the manual?
Procedure for testing AC leakage from metal parts to earth ground.
Precautions for preventing electrostatic breakdown of laser diodes.
Adjustments for head azimuth and tape speed.
Adjustments for FM VCO, frequency coverage, and tracking.
Adjustments for sled motor, focus search, and VCO.
Exploded view of the optical pick-up block assembly.