Receivers and Audio Components

I recently bought this device but i cannot seem to be able to get any sound from all of the speakers when i want to watch my cable channels. The surround sound from all the speakers only work when I play a dvd or a cd music disc. What can I do to get the surround sound from all my speakers when watching cable?

The other day while cleaning an aquarium, I believe I inadvertently sprayed the back of my garage stereo! It is a JVC MX-GB5. The next time I desired music out there the display came on as usual and then it displayed the word "Protect" and shut down! I have tried removing the case and applying a hair dryer and blowing with air but actually found no moisture. Still does same thing. while case was removed I found 6 fuses but all were good. Any suggestions? Of course the 1 year warranty is expired-Not that it would have helped anyway. HELP!!

I have an Onkyo DVD-CP500 5-Disc DVD changer that I have been having problems with for a while. I turn on the changer and open the carosel; when it is working properly the carosel spins around immediately. About two thirds of the time that happens, but often it doesn't (as if the motor inside is stuck). If I manually turn it about 3/4 of a turn, the carosel works fine again. Sometimes it stops turning the carosel while it is in.