EXFO MaxTester Series - Manual (Page 67)

Setting Up Your Unit
MaxTester Series 57
Recalibrating the Touchscreen
Recalibrating the Touchscreen
If you notice the touchscreen does not behave in the way it used to
(for example, it is now difficult to select items) it probably needs a
recalibration. The calibration method is performed using five points.
You can stop the calibration process at any time, but the touchscreen will
still need calibration. The parameters are taken into account only when the
process is complete.
Note: If a keyboard is connected to your unit, you can start the calibration
application directly by pressing CTRL + ALT + T.
To recalibrate the touchscreen:
1. If you have started the calibration application already, go directly to
step 4. Otherwise, from the Home screen, tap Configuration.
2. Tap Devices and Utilities.
3. Tap Touchscreen Calibration.