Troubleshooting
26
ML20C User Manual, 99152B, September 2021
Touch Screen Troubleshooting
Applies to touch screen monitors only� To be sure that you have the most current driver, please
check the following Internet address:
https://www�HopeIndustrial�com/support/drivers/
Symptom
Causes
Solutions
No response when
touching the touch
screen
Touch screen driver has
not been installed�
Download and install the latest driver
from the Hope Industrial website�
Touch screen cable is not
plugged in correctly.
Make sure either the USB or Serial
cable is securely connected to the
monitor and PC� Do not connect both�
If using a USB connection,
does the USB cable length
exceed 5 meters?
USB cables have a 5 meter limitation
and could cause no touch response if
this is exceeded�
If using a Serial
connection, is the Serial
cable plugged into the
correct COM port?
Ensure that the Serial cable is
connected to the COM port being used
prior to installing the touch screen
driver�
The cursor moves
but does not follow
my finger when
touching the touch
screen
Touch screen driver has
not been installed�
Download and install the latest driver
from the Hope Industrial website�
Touch screen has not been
calibrated�
Activate the calibration utility� In
Windows systems, these settings may
be found at the following location:
Control Panel > Elo Touchscreen >
"General" Tab
•
Press the Align button.
•
Touch all targets as the appear to
calibrate the touch screen�
• Press the Green Check button
when verified.
