| 摘要 |
PURPOSE:To simplify the device and to eliminate influence of noise by condensing a remote control signal by means of light of a television receiver etc. and leading it to a photo electric element on a print board by an optical fiber. CONSTITUTION:A condenser 2 is mounted to the light receiving part in front of a television receiver by a screw inserted into a fitting hole 19. A condensed light remote control signal is applied to a light receiving diode 10 through an optical fiber 14 attached by a bracket 15. A pre-amplifier circuit and a main amplifier circuit are installed on a print board. If a photo-electric element and a pre-amplifier are not arranged in the light receiving part, the print board for the pre-amplifier becomes unnecessary, and at the same time, an output lead wire and a lead wire for power source can be omitted. Further, the photo-electric element can be placed at a place where scarcely affectd by the external light and horizontal pulse. |
