MAG254 box not working post power spike

joconn3

I was changing out a light switch in my house and had to shut off the mains power at the fuse box. When i completed the work i switched back on the mains switch but my mag 254 box had no sound, but picture was fine.

I'm just wondering could I have fried one of the components in the box?

Now the picture does not work either

Any ideas?

Thanks