| 摘要 |
PURPOSE:To simplify the circuit constitution, by transmitting various data outputs intermittently, at the operation of a non-lock switch, in a remote control device having a preset function. CONSTITUTION:When analog switches AS1-AS4 receive a positive input respectively, the input for a single key out of key switches (non-lock switches) K1-K9 is fed to a control circuit IC1 and a preset key input for a plurality of switches is given. An output of the control circuit IC1 is amplified at transistors Q1, Q2 and outputs infrared rays with an infrared ray diode LED1. Since monostable multivibrators MM1-MM5 are cascade-connected, the output is outputted in the form of sequential transmission. |
