Model 990, original firmaware.

I was watching TV today, and accidentally kept the 'Mute' button on my Harmony 720 remote pressed. Suddenly I have no audio out. The 'Mute' button on the front panel and on the 720 change the mute display on the 990, but no audio out.

I think I somehow 'confused' the 990.

Any suggestions??

TIA.

If the button was pushed long enough, you enabled the headphone output and disabled the output to the amp. Quoted from the 990 manual:

To return to normal listening through your speakers, hold down the
MUTE button on the front panel for about 3 seconds, or the MUTE
button on the remote for about 5 seconds. The front panel display and
the on-screen display will indicate the surround-sound mode that is
currently selected, and the tiny red speaker indicator near the right
edge of the front panel display will reappear

That fixed it.

Thanks a bunch.