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PW20U

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Why does the projector not respond to any command when powering on or turning off?
How to resolve the "Illegal Format" message that popped up when I was inputting RS232 commands?
How many pens do PointWrite support simultaneously?
Which reminder messages will stop being displayed after "Reminder Message" is switched off?
Can I control the BenQ projector with a remote control designed by other manufacturers?
Does the projector support changing slides on PowerPoint using a remote which emulates page up and page down commands for both Windows PC and MacOS?
How do I use a RS232 cable to control the volume and sound on the projector?
How do I use a RS232 cable to power on or power off the projector?
Can I leave my projector turned on 24/7?
Can PointWrite be applied on 3 sets of projector side by side to create one larger screen?
How to clean the lens?
Is it ok to use external power supply for PointWrite? If yes, what is the spec. of the power adaptor?
May I use QPresenter in my mobile phone?
Please don't place the projector in any of the following environments.
The lamp is not on but the fan remains running, what is happening?
Why is there slight scent of burning or plastic smell when using projectors？
Why I cannot use PointDraw on my ChromeBook?
What is LAN Web Control?
Can I change the projector lamp myself?
Projection is rather blurry, what can I do?
PointWrite auto calibration is failed, how to fix this problem?
The eco mode is much darker than SmartEco mode. Is it normal?
Why can PointWrite not be activated after installation?
Why does PointWrite disconnect intermittently with 5 meter USB cable?
Why does the cursor look to be shaking or vibrating when projecting to a white board?
Why the keystone value can not be saved after turning off the projector?
My remote control is not working. What can be done to fix it?
Which 3D glasses are recommended for BenQ projectors with 3D features?
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