We had our 3-2-1 in storage for about 1 year. I installed it again two weeks ago, and everything appears to be fine, but there was no audio output. I did the "unplug power, wait 30 seconds, plug in power, watch for 'Bose 3-2-1' on the display" procedure. Still no audio. I called Bose Support, and he had me try AM and FM radio stations at 100% volume levels in hopes of at least hearing static. Still no audio. I loaded a regular music CD. The system did a track scan and then started playing the 1st track. The seconds counter incremented normally. No audio.
I think I assembled the system out of the recommended sequence. I think I had power to the Acoustimass module before connecting the speaker cable.
Might anyone have a suggestion or a Los Angeles area repair shop recommendation, I hope?