Pioneer PD-5050 User Manual

4. CIRCUIT DESCRIPTIONS
4.1 ACCURATE FOCUS SERVO SYSTEM
As a method (the Accurate Focus System) for re-
ducing the distortion of RF signals read by the
pickup, delays have been applied to the output of 2
photodiodes that precede the quarter photodiodes
and is followed by an addition operation in order to
achieve improvements in frequency responce, dis-
tortion, S/N, and so on as well as to increase the
accuracy of signal reading.
Fig. 4-1
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Pioneer PD-5050 Specifications

General

Brand	Pioneer
Model	PD-5050
Category	CD Player
Language	English