BenQ IL430 Installation Handbook page 93

Try with shorter cables (shorter than 3M for display cable/1.8M
for touch USB cable). If the problem is solved, please try to add
the repeater.
Noise/interference
Unplug the USB cable.
If unplugging the USB cable can solve the problem, please use the
digital signal (ex. HDMI or DVI) with the touch USB cable.
Try to use another AC socket.
Try to use the AC jack without ground.
Compatibility - Cannot detect IFP/DS
Try another PC/NB (different brand/model).
Try to add the repeater to boost the signal.
Android/APPs
Uninstall any other non-BenQ authorized/preloaded APPs.
Clear the APP data (setting>Application>clear data).
Restore the setting under Android Setting.
Check item
Check item
Check item
Check item
Check if
completed
Check if
completed
Check if
completed
Check if
completed
Appendix 2: Basic Troubleshooting Checklists for IFP & IL
Does the
problem still
exist?
Yes No
Does the
problem still
exist?
Yes No
Does the
problem still
exist?
Yes No
Does the
problem still
exist?
Yes No
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