| 摘要 |
A music pre-engagement circuit of multi-changer CDP(compact disc player) is disclosed. The multi-changer CDP comprises: a pick-up(P/U) for extracting signals from discs(D); an analog signal processor(ASP) for controlling a sled, tacking and focus; a digital signal processor(DSP); an RAM connected to the DSP; a D/A converter(D/A) for converting the digital signal of the DSP to the analog signal; and a low pass filter(LPF). The music pre-engagement circuit comprises: a micom(10) connected to the ASP and the DSP; an EEPROM connected to the micom(10) for storing the music of the disc; a pre-engagement LED(12) for displaying the selected disc; and a key part(16) for operating the system.
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