Works for 3 minutes, then quits.
My A1121 works perfectly for the first 3 minutes m/l, and then it stops producing sound. The volume indicator light shows orange when I use the + or - volume buttons (after it quits). I am using AC power and the mini RCA jack. If I unplug it, and wait some time (at least 30 minutes), it will play again for about 3 minutes before the problem repeats.