Locking & Unlocking the Perkins-style Keyboard and Other Controls

Locking & Unlocking the Perkins-style Keyboard and Other Controls

Problem

You wish to lock the Perkins-style Keyboard and other Controls

Resolution

You can lock the Perkins-style keys on the top of the display to prevent accidentally pressing them and entering unwanted text or commands. You can also lock additional controls so that only very basic display navigation is available.

To lock the Focus Blue keyboard, make sure the status information is displayed and then press and hold a Cursor Router followed by the Left NAV Mode button.
Note: that if a connection is active, you must first press the Menu button to display the status information.
To indicate that the keyboard is locked, DOTS 2-3-4-6-7-8 and DOTS 1-3-5-6-7-8 will be displayed in two cells toward the right end of the display, just before the connection status.
Press the Left Selector button to return to normal operation.
Once locked, pressing DOTS 1 through 8 or the SPACEBAR will no longer send keystrokes through to the computer.

To unlock the keyboard so you can once again enter text or perform commands from the Focus Blue, make sure the status information is displayed and then press and hold a Cursor Router followed by the Right NAV Mode button.
Note: that if a connection is active, you must first press the Menu button to display the status information.
Press the Left Selector button to return to normal operation and you can once again enter text using the Focus Blue keyboard.

To lock all Focus Blue controls except the Panning Buttons, Rocker bars, and Cursor Router buttons, make sure the status information is displayed and then press and hold the Menu button followed by the Left NAV Mode button.
Note: that if a connection is active, you must first press the Menu button to display the status information.
Press a Rocker bar to return to normal operation.

To unlock all Focus Blue controls, make sure the status message is displayed and then press and hold the Menu button followed by the Right NAV Mode button.
Note: that if a connection is active, you must first press the Power button to display the status information.
Press the Left Selector button to return to normal operation.

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