Pioneer PD-6050 Servis Kılavuzu - Sayfa 30
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4.6 DIGITAL LEVEL CONTROL
(Only for PD-7050 and PD-7050-S)
Instead of the previous method, place a digital attenuator
IC in front of the audio circuit. By controlling the output
level with an 8-bit data of the microcomputer and a 16-bit
audio signal from the digital circuit and multiplying both
within the attenuator IC, it is possible to obtain an audio
signal which does not damage the quality of the audio
circuit. (See Fig. 4-24) By operating the UP/DOWN key of
the remote controller, every 1 dB of 25 steps (0 dB to—25
dB) level adjustment.
Fig. 4-24 Digital level control
3 D