Mac C 22 down, need advice

Hello everybody, your advice will be very much appreciated. I have new version of Macintosh C22 preamp. Today when I was turning it on, I found that red standby light is off and I cannot turn it on. First thing I checked if it's properly connected to the outlet. Yes it is. So what kind of problem it can be? The fuse? How can I check it out? Thanx in advance friends.
Vadim.