CD-100K Phonograph
1-8 21822666
Autoplay
When no selections have been made for a predetermined time, the Autoplay feature will play selections from a
programmed list or make random selections. The choice of which selections are chosen, the selection sequence,
and the selection interval can be programmed by the owner or service person.
PRINCIPLES OF OPERATION
Audio System
The audio system consists of the electronic components that transform the recorded sound into music.
The major components of the audio system are the:
•CD Player
•Stereo Preamplifier and Stereo Amplifier
•Output Transformers
•Speaker System
CD PLAYER
This subassembly translates digital pulses from the CD into a left and right channel audio signal.
STEREO PREAMP (Figure 1-6)
The preamp increases the signal from the CD player, corrects for varying recording levels (automatic volume control
or AVC), allows the volume to be adjusted manually, and modifies the CD tone (tone changes are made through
a 7-band graphic equalizer).
STEREO AMPLIFIER (Figure 1-6)
The power amplifier converts the preamp signal to a signal that can be used by the phonograph speakers.
Figure 1-6. 1000 Watt Stereo Amplifier Components