| 摘要 |
PURPOSE:To secure the safety of a titled disk player at the time of opening of a door, by constituting said disk player in such a way that, when the door opening operation is performed while a piece of music is played, the door is opened after the disk playing means and the disk moving means are returned to their home positions. CONSTITUTION:When a door switch 1 is operated, a pulselike signal passed through a chattering preventing circuit consisting of resistances R111 and R112 and capacitors C111 and C112 becomes a clock input of a T-type flip-flop 111 after it is inverted by an invertor 110. The Q-output of the flip-flop 111 is inputted into an AND gate 113 together with the output of an open limiter switch 31a and the output of a switch 49a which detects the home position of a carrier 40. On the other hand, the Q-output is inputted into an AND gate 114 together with the output of a door close limiter switch 31b and the output of the above- mentioned switch 49a. Each output of the AND gates 113 and 114 is inputted into a driving circuit 112 as a forward rotation signal and reverse rotation signal and drives a door driving motor 26. |
