61. Power input (5VDC)6. Optical audio2. HDMI Inputs7. RS2323. HDMI output B 3. HDMI output A5. Aux 7.1 Audio In4. Analog 7.1 outBack ViewNote1: You must set your PS3, or source to LPCM decoding mode in order to use the7.1 Analog Audio Output from HDMI.Note2: Aux Input port allows connecting a 2nd analog audio source and "loop thru " tothe Analog Audio Output. Does not convert Analog Audio to HDMIBack Side Connectors Function1 Power In 5V DC2 HDMI Inputs Connect to video sources3 HDMI Outputs A/B Connect to HDTV displays or AudioReceiver4 7.1 Analog Audio Output Connect to Audio Amp/receiver.HDMI Mode Analog Audio Output is from theselected HDMI source.Note 1.Aux Input Mode ( LoopThru)Analog Audio Output is from the( see 5)connected analog audioconnection.Note 2.5 Aux Input 7.1 -Connect to DVD player AnalogAudio Outputs. Routes AnalogAudio output directly from DVDplayer to the 7.1 Analog AudioOutput. Routes from 5 to 4.Note 2.6 Optical Digital Output Connect to Audio Receiver.Audio output = audio playing onHDMI Out A7 RS-232 for external control of Matrix via PCor proprietary Control system.8 USB Port for custom EDID/ code updates8. USB PortAUX audio indictor led will illuminate whenAux input Mode (Loop thru) is selected