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VP-81SIDN - Operating the VP-81SIDN Locally
7.6 Locking and Unlocking the Front Panel Buttons
To lock and unlock the front panel buttons:
1. Press the Lock button until it lights.
The front panel buttons are locked.
2. Press the Lock button until it no longer lights.
The front panel buttons are unlocked.
7.7 Muting and unmuting the Audio
To mute and unmute the audio output:
Press the Mute button.
The button lights and the audio is muted
Press the Mute button again to toggle the setting.
The button no longer lights