| 摘要 |
PURPOSE:To attain quick channel selection by fitting freely rotatably a pushbutton having an operating member to a support frame independently of the shaft lever in forward/reverse directions and forming an inner gear to the pushbutton so as to mesh the transmission gear with the inner gear. CONSTITUTION:An operating member 21 constituting a manual tuning channel selector 20 is made of the shaft lever 22 and a support piece 26 having a changeover lever 24 and a spring is fitted to the shaft lever 22. Further, a support lever 49 supported freely rotatably and movably in forward/backward direction is provided to the support frame between the operating member 21 and the channel selection member 37, and the pushbutton 20 having an inner tooth gear 50 meshing with a gear 30 of the operating member 21 at the inner circumference and having a boss 51 pressing into contact with the end face of the gear 30 is fixed to the rear end of the support lever 49.
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