Pioneer PD-6050 Manuale di servizio - Pagina 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