BenQ PL460 Installation Handbook page 83

Noise/Interfence
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.
Check item
Check item
Check if
completed
Check if
completed
Appendix 2: basic troubleshooting checklists
Does the
problem still
exist?
Yes No
Does the
problem still
exist?
Yes No
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