| 摘要 |
PURPOSE:To display accurately a channel selection member which is under a channel selection mode by making use of a fact that the channel selection member under a channel selection mode is positioned in a move-forward state. CONSTITUTION:A light source 24 is set between a device frame rear plate 12'' and a display panel 23. Then a display hole 25 is provided to the panel 23 at a position opposite to each end part of channel selection members 5a and 5b respectively. The exposure of the hole 25 is controlled at said end parts and by the move-forward/back actions of those channel selection members. Then the end part of a shaft lever 6 of the channel selection member which is pressed to the plate 12'' and kept in a non-channel selection state is put into the hole 25 to close it. Thus the exposure light sent from the source 24 through the hole 25 is cut off. While the lever 6 of the channel selection member which is locked under a move-forward state by a lock plate 16 and set under a channel selection mode moves out of the hole 25 to open it, so that the light sent from the source 24 is exposed through the hole 25. Thus, the position of the channel selection member kept under a channel selection mode is displayed optically on the panel 23.
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