Improvements relating to audio-visual systems.

摘要

In or for use in an audio-visual system comprising a plurality of component units including a television receiver for serving as a visual display unit of the system and at least two other associated component units required to be selectively interconnected with each other and/or with the television receiver by means of interconnections including standard connectors and cordsets of the kind hereinbefore defined, an electric switching arrangement for establishing selected interconnections between component units of the system by way of further standard connectors forming part of the arrangement in response to appropriate command signal produced by a logic circuit which determines from signals received from component units of the system the required mode or modes of operation of the system and which applies the command signal to a switch device of the arrangement for automatically effecting the requisite switching operation according to user requirements. <IMAGE>