| 摘要 |
PURPOSE:To always use the display of a CRT to the display on a TV screen, by applying the resetting or interruption to a CPU with a pulse signal produced from a channel selecting device when the TV channels are selected. CONSTITUTION:A voice muting signal line 7 is connected to a resetting circuit 20. A CPU10 is reset by a voice muting signal delivered from a channel selecting device 2 oven in case the channels are selected through a channel selecting keyboard 3. As a result, a signal switch circuit 17 selects a TV screen, i.e., the output of an amplifying/color demodulating circuit 5 with a resetting process of the CPU10. Thus the display of a CRT is always identical to the display on the TV screen. |
