Doc# 27-0010UM Issued 02/01 Rev 1.0
20
Troubleshooting
SAW TOUCH PANEL
OPERATION
Verify that the pointing device (if not a
finger) is soft enough to absorb the
signal.
A finger, soft eraser or rubber stylus
will work.
A hard eraser, pen or metal stylus
will not absorb enough of the
signal and the touch panel will not
respond.
Verify that the SAW Panel driver is
loaded in the host computer.
If loaded, the driver will be found
in the Control Panel directory.
If not loaded, install the driver.
TOUCH PANEL NOT RESPONDING
WHEN TOUCHED
The SAW (Surface Acoustic Wave)
Touch Panel incorporates a glass
overlay with transducers that generate
ultrasonic waves that are directed over
the front surface of the glass. When
touched, a portion of the wave
traveling across the screen is ab-
sorbed. The received signal is
compared with a stored digital map,
the change recognized and a coordi-
nate calculated.
