No sound. The display on the front of the receiver is still illuminated; however it does not

Question

The display on the front of the receiver is still illuminated; however it does not produce any sound...Does anyone know how to get to the amp fuse and if it is the fuse, where do I find a replacement.  Also, is replacing the fuse just like replacing a fuse in car audio, or is it different.

Any suggestions would be greatly appreciated....

thank you

Joe