No Analog Input on Symphony I/O

Symptom: No analog input on Symphony I/O Solution: There are a number of logical and easily correctable causes for this.  Please examine the following steps - 

  • Make sure the SymphonyI/O is configured correctly and open Maestro. Go to the "Device Settings" tab and set the front-panel meters to display the channel(s) you are expecting to see input on. Do you see the input on the front-panel? If so, make sure the SymphonyI/O is selected in your application's audio preferences. For "Symphony AIM", it will show up as "Symphony64", for "USB AIM", it will show up as "SymphonyI/O: USB", and for "ProTools HD AIM", it will show up as an Avid HD I/O.
  • If you're not seeing input on the front-panel, try quitting all the audio apps and power-cycling the SymI/O.
  • If you've already power-cycled the SymI/O a few times and you're still not seeing input on the front-panel or in Maestro's input tab, make sure the SymI/O is plugged in to your computer using the Apogee USB cable and launch the SymphonyI/O firmware updater. Does the updater display all the correct versions? Is it displaying "N.A." of "ff" where you would expect it to show an i/o module's firmware version? If so, this could mean that the i/o module isn't powering up properly. You may have a bad ribbon cable that's connecting the i/o module to the main board. You may also need to run the firmware updater. Quit any audio apps and the updater if it's open… power-cycle the SymI/O. Launch the updater again and update the firmware. If it says the firmware's up to date, try doing a force-update.
  • Try different analog input cables.
  •  Make sure the SymI/O is receiving enough input level- you may need to change the "Analog Reference Level" for the inputs, depending on what you're trying to send to it… It's default is to accept +4dBu "line level".