| 摘要 |
<p>PURPOSE:To use an operating switch not only for controlling tuner but also for controlling deck, by installing an electronic tuner, each microcomputer for magnetic recording reproducing device, plural operating switches, a reacord reproducer, and a tuner which selects tuner operation. CONSTITUTION:Under a condition of a record reproducer where a switch 14 is set to a condition shown in the diagram, switches 3a-3e operate as inputs for quick-feeding, stopping, reproducing, rewinding, and reversing running, respectively, and drive a tape running string 2 by controlling a microcomputer 1. At this time, a microcomputer 6 for tuner does not work because a transistor (Tr)9 is conductive. When the tuner condition is set by switching the switch 14, the microcomputer 1 is reset by the output of a resetting circuit 12 and an input If is changed. Therefore, the program of the microcomputer 1 is executed as the tuner and the (Tr)9 is turned off. Moreover, the microcomputer for tuner 6 starts working and the switches 3a-3e make the channel selecting operation of a tuner 7.</p> |
