My parents gave me their old Bose Wave CD\Radio which, after traveling
250 miles when they moved house, stopped producing sound. I've had a
look at it, and it powers on OK, all the functions work, but no sound
comes from CDs, radio or AUX input. I've checked that the system isn't
muted (a very helpful tip from the manual...) and it isn't. I think
something must have come loose inside during the journey. Occasionally
it will make a noise like speakers do when the volume is turned up high
but nothing is playing, a loud hum. They said it worked once after the
travel, and once it worked but was very quite. Unfortunatly the
warrenty has expired. Any ideas what might have come loose?