CD-Rom Drive as Digital-Audio CD Player


A CD-ROM
drive can be used as a stand-alone unit for playing digital audio CDs
without interfacing with a computer. The stereo output of CD player
available at the audio jack can be amplified using audio input facility
which is normally available on a tape-deck/tape-recorder or a stereo
amplifier. Audio socket on front/rear of the CD-ROM drive is capable of driving headphones or speakers of less than 500mW. Proper stereo jacks for interconnection between CD-ROM
drive and tape deck are available from computer/tape recorder spares
vendors. The principle of operation is illustrated here with the help of
block diagram. The 4-pin power supply socket available at the rear of a
CD-ROM player is meant for +5V, ground (two
middle pins) and +12V inputs. The power supply can be easily derived
using a conventional power supply circuit as shown in the figure. If you
have an external CD-ROM drive, it can be simply plugged into the mains since it has self-contained power supply circuit inside.

A CD-ROM drive can be used as a
stand-alone unit for playing digital audio CDs without interfacing with a
computer. The stereo output of CD player available at the audio jack
can be amplified using audio input facility which is normally available
on a tape-deck/tape-recorder or a stereo amplifier. Audio socket on
front/rear of the CD-ROM drive is capable of driving headphones or speakers of less than 500mW. Proper stereo jacks for interconnection between CD-ROM
drive and tape deck are available from computer/tape recorder spares
vendors. The principle of operation is illustrated here with the help of
block diagram. The 4-pin power supply socket available at the rear of a
CD-ROM player is meant for +5V, ground (two
middle pins) and +12V inputs. The power supply can be easily derived
using a conventional power supply circuit as shown in the figure. If you
have an external CD-ROM drive, it can be simply plugged into the mains since it has self-contained power supply circuit inside.


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