| 摘要 |
PROBLEM TO BE SOLVED: To provide an adapter for setting a new, commercial and pure deck, etc., in a vacant place after leaving a pure multi-display and a deck behind as to the connection and moving the place. SOLUTION: When a power source of a commercial, and non-pure deck 10 is in OFF, a contact point of a switching means 16 is at the position as illustrated, and the outputs of the multi-displayer and deck 4 are connected to a power amplifier 5. This connection state remains pure, then there is no problem anyway. When the power source of the commercial and non-pure deck 10 becomes ON, a remote terminal becomes 12 V, the contact point of a switching means turns to a non-illustrated side, and the converted output of the commercial and non-pure deck 10 is connected to the power amplifier 5. In this case, only an audio signal is switched, a control signal remains connected to the pure multi-display and deck 4, therefore the matching property of the system is not destroyed.
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