Dell™ Latitude™ XT2 XFR Service Manual
Page 20 of 94 Version A00-01
1.5 XT2 XFR Pen
Your XT2 XFR uses a specifically designed electrostatic pen or stylus for use in tablet PC mode.
Instead of relying on battery power, the energy source for the stylus is magnetic energy produced by
the excitation coil built into the digitizer itself. The signal from the coil is picked up by the stylus and
triggers the stylus to transmit an electric field.
The transmitted electric field is sensed by a matrix of conductive lines, accurate stylus position
determined using the low amplitude signals received on the vertical and horizontal conductors, and an
appropriate signal is transferred to the digitizer's on-board processor.
Tips come in one color type, black. The black tips present a "harder" writing feel. The system ships
with a total of two black tips. These tips are easily replaced by using the pen-tip removal tool which
looks similar to an oversized pair of tweezers. This tool also ships with the XT2 XFR.
NOTE: In the event of a suspected digitizer failure, the pen tip should be examined. If the tip is
damaged it needs to be replaced. This will oftentimes remedy the problem with the digitizer.
1.5.1 Calibrating the Pen
The pen can function at the default calibration or at a calibration set by you or by another user. It is
recommended that you use the pen only while it is calibrated to your personal calibration settings.
Calibration optimizes pen performance for each user.
To calibrate the pen: