| 摘要 |
PURPOSE:To improve a selectivity of a using embodiment, enhance an operability and easily treat the extension, the change or the like of a selecting function of equipments by separating a display device into a picture display device driving section and a signal processing section to be detachable and having a construction connecting by a signal cable. CONSTITUTION:A picture display device driving section 11 and a function selecting signal processing section 12 are separately and individually constituted and connected by a connecting means 13. The picture display device driving section 11 are provided with a display device CRT111, a deflecting circuit 112, as well as amplifier 113, a speaker 114, and a headphone jack 115 as a sound output means, or the like. The signal processing section 12 is provided with an equipment selecting switch 121 for selecting and synthesizing various types of video signals, a video signal processing circuit 122, an RGB synthesizing signal 123, a video signal change-over circuit 124 or the like and is provided with amplifiers 125, 126 as processing circuits of a sound system and a microcomputer 127 for controlling the various switches or the processing circuits. The connecting means 13 mounts attachably, detachably the signal processing section 12 to the picture display device driving section 11 and is constructed so as to perform a connection by a signal cable 131.
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