Kramer Electronics FC-340 - Manual (Page 20)

FC-340 - Operating the FC-340
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7.4 Locking and Unlocking the Front Panel
You can lock the front panel buttons to prevent unwanted key presses from
changing the current configuration.
To lock the front panel:

Press and hold the Panel Lock button.
The button lights, the Locked message is displayed briefly, and the front
panel buttons are locked. Pressing any button causes the Locked message
to display briefly and the Panel Lock button to flash
To unlock the front panel:

Press and hold the Panel Lock button.
The button no longer lights and the front panel buttons are unlocked
7.5 Updating the Firmware Using the K-Upload Software
The FC-340 uses a microcontroller that runs firmware located in flash memory.
The latest version of firmware and upgrade instructions (Kramer K-Upload Guide)
can be downloaded from the Kramer Web site at
http://www.kramerelectronics.com .