EchoTouch Doesn't Respond to Touch or Seems to Move On It's Own
Symptoms/Issue
An EchoTouch Touchscreen may not respond to touch input, or may appear to be responding to touch that isn't there and changing on it's own.
Description/Explanation of Issue
If either of these things are occurring, you may have a grounding issue.
Fix/Solution
- If powered via POE (power over ethernet) then add a connection from the grounding point on the back of the screen to earth ground.
- If using AUX power, make sure that ground wiring is connected on both ends to a known grounding point. The ESD ground should also be connected.
- Ensure that the plastic film which ships protecting the screen has been removed.