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Calibrating the Touch Screen
If the touch screen no longer responds to pressure from the corresponding controls, recalibrating the touch
screen may be necessary.
Step 1: Device Home Screen
1. Device shows Home-Screen
2. Press and hold the STOP button
3. Press the on/off button 2x in successionn
4. Release the STOP button
Step 3: Restart the Device
Switch off the device (press and hold the on/off
button)
6. Switch the device on again after deleting
calibration data
7. Wait for the screen (seen in step 4) to
display
Step 2: Deleting Calibration Data
5. Press the STOP button
The previous calibration data has been deleted
Step 4: Touch Calibration
8. With a pencil or something
similar, press the cross in the
upper left corner of the
screen as accurately as
possible.
9. An additional 4 crosses appear in the top
right, bottom right, bottom left and in the
middle of the screen and must be pressed
as accurately as possible
10. Wait for the screen from step 5 to display
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