Boston 8550i User Guide – © 2012 Belgravium Technologies Plc
(v.1.0
)
9
Calibrating the Touch Screen
Calibration can be performed by opening the "Stylus" folder in the
Control Panel directory and choosing the "Calibration" tab. While
following the directions for calibration of the screen, keep the
following points in mind:-
•
On tapping the “Recalibrate” button, you will be prompted
to calibrate the screen. The Boston will display a cross-hair
target and a message to "Press and hold stylus on centre of
target".
•
Calibration should always be performed with a stylus
designed for touch screen applications (Part No. PP1001).
•
The stylus should be oriented at a 90 degree angle to the
screen surface. Press the stylus firmly into the centre of the
cross-hair target, briefly hold, and release. Do not
"doubletap" the target. You will be prompted to repeat this
process for a total of five targets. Press the ENTER key
when complete in order to save the new calibration
settings, or the Esc key to cancel.
•
It may also be necessary to calibrate the screen for the
user’s prefON/erence of "double-tap" speed. If the Boston does
not respond properly to a "double-tap" on the screen, open the
"Stylus" folder in the Control Panel directory and choose the
"Double-Tap" tab. Double-tap the chequered square using your
normal double- tap speed then verify by double-tapping the
verification icon. This setting is also reset to factory default each time the Boston is cold
booted and must be recalibrated by the user.
WARNING:
If the main battery becomes fully discharged or is removed. The data held in RAM will be
preserved for a maximum of 60 minutes. If the main battery is not replaced with a charged battery,
the Boston will be restored to its original factory default settings and any data stored in the RAM
filing system will be lost. However, applications and data in the persistent storage folder \Flash
Storage will be preserved (Intel
Persistent Storage Manager). (See Page 17)
