Operating the VC5090 3 - 3

Backlight Control Button
The Backlight Control button places the Quick Access Panel’s P1, P2 and P3 buttons into the backlight control
mode where you can adjust the brightness of the display or turn on/off the keyboard backlight. See Adjusting the
Brightness on page 3-9 for more information.
Programmable (“P”) Keys
The programmable keys on the Quick Access Panel (P1, P2, P3) can be set to perform certain functions, such as:
• launching an application
• simulating a key press
• toggling the SIP keyboard
• enabling and disabling the touch screen
• toggling the keyboard backlight
• playing a key sequence
• launching the calibration screen.
To set a programmable key:
1. Tap > Settings > Control Panel > Programmable Keys icon. The Configure Programmable Keys window
appears.
Figure 3-3
Programmable Keys Screen, Key Drop-Down Menu
2. In the Key: drop-down menu, select the P key you would like to program.
3. In the Action drop-down menu. select the function you would like the P key to perform.
Slow Blinking (once every 1.6 seconds) Good WLAN signal.
Off Poor WLAN signal. Radio is not associates with an AP. Radio is
disabled. COMM LED is disabled.
Table 3-2 COMM LED Indicator (Continued)
LED State Indication
NOTE These settings are not persistent across a cold boot.