4 Troubleshooting Troubleshooting Guide
62
Integrated Touch Display not functioning
Symptoms Possible Causes of Failure Failure Isolation and Remedy
Touch Screen not
functioning
Touch controller cable not
connected
Check connection from the touch
controller board to the main
board
Touch panel cable not connected
Check connection from touch
controller board to touch panel
Touch controller board defective
Replace touch controller board
Note: Linearization data must be
loaded and recalibrated after
replacing the touch controller
board
To uc h Sen s o r de f e ctiv e
Replace Touch Sensor
Main board defective
Replace main board
Touch Position invalid Touch not calibrated Perform touch calibration:
1. Enter the Main Setup Menu
2. Select Monitor
3. Select Hardware
4. Select Touch Driver Settings
5. Select Calibrate
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