HEADPHONE DEVICE AND EARPHONE DEVICE

摘要

a microcomputer; a DC jack for applying the power; a tuner; a driving part for driving a cassette deck under control of the microcomputer; a tape sensing part for sensing the presence or absence of the cassette tape, and providing the result to the microcomputer; a head for regenerating the cassette tape; an amplifying part for amplifying a cassette tape signal under control of the microcomputer; a headphone/earphone for outputting a signal amplified in the amplifying part to the headphone or earphone; and a phone jack for providing an audio signal to the headphone/earphone, and providing the power to the system when the power switch is on.