User's Manual

Table Of Contents
Psion Teklogix 7535 Hand-Held Computer Quick Start Guide 37
Note: Keep in mind that this option may be restricted to supervi-
sory use only.
2.4.2 Adjusting The Contrast
The display contrast can be adjusted from the unit keyboard using
the <BLUE> key and function keys <F1> and <F2>.
Press the <BLUE> key twice to lock it on, and then press
<F1> to darken and <F2> to lighten the display.
When you’re satisfied with the contrast adjustment, press
<BLUE> again.
2.4.3 Calibrating The Touchscreen
Note: This function may be restricted to supervisory use.
If your 7535 touchscreen has never been calibrated or if you find that
the stylus pointer is not accurate when you tap on an item:
Sets duration of time the backlight stays on
at half the configured intensity when the
unit is not in use.
Determines how dark the ambient light
light needs to be before the backlight
switches on.
Sets duration of time the backlight stays on
at the configured intensity when the unit
is not in use.
Adjusts the light intensity of the backlight.