User guide

Operating the MC909X 2 - 47
Keypad Special Functions
The keypad special functions are color coded on the keypads. For example, on the 53-key keypad, the display
backlight icon is blue indicating that the blue function key must be selected first to access the display backlight.
On the 43-key keypad, the display backlight icon is white indicating that the display backlight is the default
value for that key.
Table 2-14 Keypad Special Functions
Icon
28-Key
Keypad
33-Key
Keypad
38-Key
Alpha/Shifted
Numeric
Keypad
38-Key
Numeric/
Function
Keypad
43-Key
Keypad
53-Key,
3270, 5250,
VT Keypad
Special Function
Blue key
+ #
Blue key +
7
Blue key + V
key key
Blue key +
Z Turns on and off the
display backlight.
Blue key
+
0
Blue key +
4
Blue key + Y
key key
Blue key +
X Turns on and off the
keypad backlight.
Blue key
+
1
Blue key +
8
Blue key + A Blue key + F1 Blue key +
F1
Blue key +
D
Monochrome units:
Increases display
contrast.
Color units:
Increases display
backlight intensity.
Blue key
+
4
Blue key +
5
Blue key + E Blue key + F5 Blue key +
F5
Blue key + I Monochrome units:
Decreases display
contrast.
Color units:
Increases display
backlight intensity.
Blue key
+ 3
Blue key +
9
Blue key + D Blue key + F4 Blue key +
F4
Blue key +
H
Increases scan
decode beeper
volume.
Blue key
+
6
Blue key +
6
Blue key + H Blue key + F8 Blue key +
F8
Blue key +
M
Decreases scan
decode beeper
volume.
Blue key
+
CTRL
Blue key +
CTRL
Blue key + X Blue key +
CTRL
Blue key +
CTRL
Blue key +
CTRL
Enables Alt keypad
functions.
Not
available
Not
available
Blue key +
U Not available Not available Not
available
Sends TAB
character (forward
tab).
NOTE Use of display and keypad backlighting can significantly reduce battery life. Mobile computers with color
screens do not have contrast settings.