Touch function issues
The icons can be touched but the drawings cannot.
Touching does not work when HDMI connection is
used.
Check whether the TOUCH port on the product is connected to a USB port on the PC using
the supplied USB cable.
• WM55B/WM65B
" HDMI or DP TOUCH on the rear of the product
" HDMI 2TOUCH on the tray
• WM75B/WM85B
" HDMI 1 or DP TOUCH on the rear of the product
" HDMI 2TOUCH on the tray
I use two pens, but they do not work well.
There is a screen touch malfunction such as slow or
inaccurate responding.
Make sure that there are no foreign substances on the screen surface.
Check whether the screen is broken.
When the product is turned on after turning off, do not tap the screen because touch
calibration is performed for 5 seconds.
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