| 摘要 |
PURPOSE:To reduce cost by reducing the number of the terminals of a plug and a jack and simplifying structure and to improve tone by eliminating the mutual interference of control signals and audio signals. CONSTITUTION:In a remote control part 6, an audio signal fly-back line 6GA to be connected to an earphone 7 and a control signal fly-back line 6GC from a microcomputer 6b for a remote controller are not connected and left separated and the audio signal fly-back line 6GA is connected to the audio signal fly-back line 5GA of a cable 5. On the other hand, the control signal fly-back line 6GC is connected to the control signal fly-back line 5GC of the cable 5 and the audio signal fly-back line 5GA and the control signal fly-back line 5GC of the cable 5 are connected to a common plug terminal 4a3 in common in the plug 4. |
