NOTE: If your HS103 does not auto-switch, chances are the HS103 IS NOT BROKEN. The HS103 monitors the HDMI port for activity and some video equipment, ie…. satellite receivers, cable boxes, dvd players, etc merely enter a sleep mode when powered down. This mode may leave the HDMI port enabled with a black screen being output. If the video equipment in question does not truly turn off the HDMI port, then the HS103 will not switch from that device to a new source.
To troubleshoot this problem, simply disconnect the AC power to the video equipment that you wish to unselect. If the HS103 then switches to the new video equipment (that is powered on), it is highly likely that the unplugged equipment is not implementing the HDMI port properly. Contact the manufacturer of this equipment to see if there is a firmware update to resolve the issue.