Question AVR 3300: I can mutes speakers for headphones nau?


Novice Member
I just picked up a Denon AVR 3300 without a remote and found that jacking in headphones does not mute the speakers. A perusal of the manual instructs, "Press the OUTPUT button to play the sound over the headphones only."

Of course the OUTPUT button is on the remote I don't have.

Can I mute the speakers, you know, without a Denon remote?
(I have programmed an old xfinity (Comcast) remote to control power, volume, modes, but that's it so far...nothing to mute speakers whist listening to headphones.) Any suggestions?
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