| 摘要 |
PURPOSE:To increase the range of application of a VTR part, by performing the operation control of VTR and the display of the operation mode with a microcomputer at the TV side to centralize the area of operation and then increase the controllability and then facilitaing an easy separation between the TV reception part and the VTR part. CONSTITUTION:An action control button of a VTR2 is operated through a keyboard 5 at a TV reception part 1, and thus the binary coded signal showing the corresponding timing is supplied to a resistance value converting circuit 11 from a microcomputer COM3. The output of the circuit 11 is applied to a microcomputer COM4 via a resistance value comparing circuit 13, and thus the COM4 performs a designated action control. At the same time, the COM3 actuates a VTR side channel selection IC9 and a TV side channel selection IC8 according to the button operation of the circuit 5. Then the selected channel of the IC9 is displayed through an LED circuit 7. Furthermore the COM3 carries out all input processes to control the VTR2 to the button operation of the circuit 5. |
