2.6 Touchscreen issue
Set-up
The issue occurs while the system is set up as follows:
• None specific (it is assumed only that the GUI is visible).
Symptom
The issue causes the following symptoms:
1. Touchscreen does not function – GUI navigation is not possible.
2. Touchscreen sensitivity to touches is poor - GUI navigation is difficult.
3. Touchscreen hit location is not accurate - GUI navigation is difficult.
Diagnoses
The following information collection can be helpful to help diagnose and remedy the issue:
1. Note if the issue is also associated with another issue or warning message.
2. Note if issue can be reproduced in a consistent and repeatable manner.
3. Did the system suffer a drop, impact or other event which may have triggered the issue?
4. Note if touchscreen is badly scratched or cracked.
Field fix
The following actions may help to avoid the return of the system to the ESC for inspection:
1. Ensure that the touchscreen sensitivity is set to the user's preference:
• Press the Utilities button on the touchscreen.
• Press the Setup tab.
• Increase the Touchpad sensitivity control slider to maximum.
2. Perform the touchscreen calibration procedure (if possible):
• Press the Utilities button on the touchscreen.
• Press the Maintenance tab.
• Press the Touchscreen setup button.
RMA
Failing a successful field fix, it will be necessary to return the system to the ESC for inspection
• Initiate RMA process described in reference document [2] by submitting a completed RMA form [3] to
eZono.
Version: 1.1 © eZono AG, 2009-2015 - Confidential Page 11 of 25
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