Why do i have no audio or faults. - Pioneer Elite VSX 51 AV network receiver

1. speakers not attached correctly.
2. power not turned on
3. volume turned too low.
4. blown fuse.
5. blown power transistors.
6. antenna not connected properly
7. wrong selector switch pressed, receiver in wrong mode.

Given that you've provided no information at all as to whether the unit was working properly previously; if the unit stopped working while it was playing; whether the unit was fine until the last time you powered it off; anything you did prior to the unit not working such as disconnected the system and reconnected it again, etc. the possibilities above may provide your solution.

If the unit is producing an error code, get a copy of the manual and look up the error code.

Otherwise, the unit may need to be repaired.