12
The Keyboards
VX4 User’s Guide
E-EQ-VX4OGWW-H-ARC
Control Keys
The VMT keyboard has several control keys. Because of the construction of the VX4 and the
Microsoft Windows operating system, many of the Control Keys are not used on the VX4.
Note:
The <F4>, <F5>, <F6>, and <F7> keys have no function as the VX4 has TFT LCD
screen with no provision for contrast or brightness adjustments.
The <F8> and <F9> keys have no function as the sound volume on the VX4 is
controlled with the Sound icon in the Microsoft Windows System Tray.
The <F10> key is used to toggle the backlight as part of the keypress sequence <2
nd
> + <CTRL>
+ <F10>. This key sequence immediately toggles the status of the keyboard backlight. Pressing
<2
nd
> + <F10> has no effect on the keyboard backlight.
1. Display Brightness Control
Keys (Not used
)
2. Display Contrast Control
Keys (Not used)
3. Speaker Volume Control
Keys (Not used)
4. Backlight Control Key
(See above)
Figure 9 The VMT Keyboard Display Controls
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