Troubleshooting
UM23.8A User Manual, 99183A, June 2022
29
Touch Screen Troubleshooting
Multi-Touch Touch Screen Models (HIS-UM23.8-_PVA, HIS-UM23.8-_RVA, and
HIS-UM23�8-_SVA)
Symptom
Causes
Solutions
No response
when touching
the touch
screen
Touch screen cable is not
plugged in correctly.
Make sure the USB touch screen cable
is securely connected to the monitor and
PC�
USB cable length exceeds 5
meters�
USB cables have a 5 meter limitation�
Exceeding this length may cause
connection issues without the use of a
USB or KVM extender device� Please
contact Hope Industrial support for
extension options�
The screen
responds to
touch, but does
not follow my
finger
Touch screen calibration
issue�
Hope Industrial PCAP and Multi-Touch
Resistive touch screens are calibrated
at the factory and should not require
recalibration in the field. If a touch
accuracy issue is encountered, please
contact Hope Industrial support for
solutions�