Here is a thread about some of the Sherwood issues.
http://www.remotecentral.com/cgi-bin/mboard/rc-custom/thread.cgi?16326I also copy and pasted this from the Sherwood website FAQ about troubleshooting shut down issues.
There are many reasons why a receiver will shut down unexpectedly. The first thing to check is the speaker wiring. Make sure the speaker wires are not shorted out (touching each other). You should check the speaker wiring to be absolutely sure the wiring is correct. If the wiring is correct you should power down the receiver and completely disconnect ALL the speaker wires. Then turn the receiver ON, without any speakers connected, to see if the receiver continues to shut down.
If it continues to shut down there could be damage internally. If it remains on (this is usually a good sign) turn the volume up to about half way and connect one speaker at a time until the receiver shuts down again. You can single out which speaker is causing the problem at which point you should repair or replace the problem speaker/speaker wire.
