I have a Teac AG-V8050 that has worked ever since it was purchased. After watching the news Tuesday night we turned off the TV and then the Teac unit just as has been done for years. Wednesday night we turned on the TV and then the Teac amplifier. Nothing! No sound. Not on any of the inputs, e.g. tuner, CD player, etc. Not even the test tone. Everything appeared normal, just no sound. After trying everything in the Trouble Shooting section to no avail, we gave up and turned up the sound on the TV. Any suggestions? Would appreciate it. Thanks.