have 3 hd222 units synced for picture and am trying to get the audio running. the data sheet says ac3 audio is passed through, which i assume means it should be getting to my surround preamp.
the files are mp4 with ac3 audio in 5.1 format. i'm assuming this should be doable. my patching is set up to run hdmi out of the master hd222 to the preamp, which passes the picture through to a projector. that part works. i do get the picture on screen. the audio is not being detected, though.
what am i missing here?