BenQ RM8602K 86" Class 4K UHD Educational Touchscreen LED Display - Manual (Page 92)

92 Appendix 2: Basic Troubleshooting Checklists for IFP
Condensation
Condensation on the inner side of the glass is a natural phenomenon when the temperature
and humidity of the air change quickly. Condensation may occur if the display is powered on
after not being used for a long time, or if the heating system of the room is switched on. And it
may last for hours.
Failed calibration
Add extender/repeater
Check the timing using is supported by the device.
Check item
Check if
completed
Does the
problem still
exist?
Yes No
Check item
Check if
completed
Does the
problem still
exist?
Yes No
Keep the display powered on for at least 24 hours.
Keep the display away from the window.
Check item
Check if
completed
Does the
problem still
exist?
Yes No
Please try with the built-in calibration tool on the Windows
operating system.
Contact the service provider to see if a calibration software is
available.
Check item
Check if
completed
Does the
problem still
exist?
Yes No
If the touch is not working, please add a USB hub/extender.
If there is no display, please add the display port repeater
(ex.HDMI repeater).