CD-ROM as an Audio-CD player. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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CD-ROM as an Audio-CD player. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Computers

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At the stands of shops and salons there is now a large selection of all kinds of audio equipment, including those with CD players. Many computers are now also equipped with a CD-ROM drive unit, allowing the computer not only to read file information, but also to listen to music CDs.

Of course, not everyone needs to buy, say, a radio with a CD player or a music center, already having a good amplifier or other reproducing equipment. For those who want to acquire such a player with minimal material costs, I recommend purchasing CD-ROM drives, which, as already noted, are suitable for playing music CDs. When choosing such a unit, keep in mind that high-speed drives, although more expensive, do not have any advantages when playing conventional audio CDs.

Recently, CD-ROM drives have been sold that have two "Play" buttons and a button for ejecting the tray. Moreover, they perform additional functions: pressing the "Play" button again during CD playback allows you to switch to listening to the next musical composition, and the button for extending the tray during playback performs the "Pause" function. If there is only one button on the drive unit - to pull out the tray, then after loading the CD, the playback mode automatically turns on. There are also remote control CD-ROM drives, but they are relatively expensive.

CD-ROM as an Audio-CD player

An example of the placement of connectors on the rear panel of one of these devices is shown in the figure. All you need to do when using the CD player is to connect the power and connect it to the amplifier. The power supply must have two stabilized output voltages: +12 V and +5 V. The current consumed by the drive is usually indicated in the passport or on the case. On the front panel there is a jack for connecting stereo phones, on the back there is an analog output connector (ANALOG AUDIO) with an output signal amplitude of up to 1 V. A two-wire shielded cable with an appropriate connector for connecting to an amplifier is connected to it.

Author: O.Lupaev, Novocheboksarsk; Publication: cxem.net

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