Component audio/video system with timed control of plural peripheral devices

摘要: A component audio/video system includes a controller having an input/output port adapted for connection via bidirectional data bus to plurality of peripheral devices. At times determined by master clock the transmits, bus, user programmed sequences commands at specified selected devices controlling operating modes thereof. After transmission command sequence, monitors detect received return status message from device and in response selectively (1) re-transmits last command, (2) interrupts (3) transmits further sequence whereby number individual may be controlled single possiblility conflict between currently transmitted current mode is minimized.