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Home Entertainment Projector for Sports Fans with 4K HDR,3000lm | TK800

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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?
When I used the projector with a 4K Bluray player, the message "Your projector is not compatible with 4K." was shown. What can be done to fix it?
My projector does not have SPDIF input. If I have a home theater 4K, can the audio be played through HDMI?
How can I connect cable TV to the projector?
What is the best way to connect the projector to an external audio?
How can I display the content from Raspberry Pi on this projector while playing the sound through a soundbar speaker?
Which reminder messages will stop being displayed after "Reminder Message" is switched off?
How to play 4K HDR 60Hz videos from Netflix or Amazon through this projector?
Can this projector play *.mkv files from a USB?
Is a player with UHD-upscaling feature required for advanced projection image quality?
Is it possible to enable silence mode as default on projector?
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?
How to clean the lens?
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?
My projector displays 2D image, the image is shaky. May I know how to fix it?
My projector shows left and right asymmetry, half of the projected image is brighter than the other. May I know how to fix it?
Projection is rather blurry, what can I do?
The eco mode is much darker than SmartEco mode. Is it normal?
Why the keystone value can not be saved after turning off the projector?
My projector shows left-right asymmetry. Half of the projected image is brighter than the other. Can I know how to fix it?
When my projector displayed the 2D image, the image was shaky. Can I know how to fix it?
How can I eliminate the grey area around the projected image?
My remote control is not working. What can be done to fix it?
The color gamut selection is greyed out in OSD. What can be done to fix it?
The color gamut selection is greyed out in OSD. What can be done to fix it?
When projector is in operation, why is the power LED not lit up?
How to fix the shaky 2D image displayed through my projector?
How to fix the left-right asymmetry that caused half of the projected image to be brighter than the other?
Some items in OSD are greyed out in HDR mode, how can I fix it?
Can the projector upgrade a 1080p source to 4K?
Which 3D glasses are recommended for BenQ projectors with 3D features?
Does TK800 input support 4K 60Hz HDR 10 bits 4: 4: 4? (ps4 pro)
Does the USB Type-A slot on the projector support reading file or displaying content from a USB drive or portable drive?
Does TK800 have built-in Bluetooth?
Can the projector work if it is located 1.5 meters away from the screen?
Does TK800 support 3D side-by-side format?
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