True 4K UHD Projector with 100% DCI-P3/Rec.709 and HDR-PRO| W5700
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How to change the lamp and reset the lamp timer?
How do I clean my projector lens?
How do I use a RS232 cable to power on or power off the projector?
How do I use a RS232 cable to control the volume and sound on the projector?
My remote control is not working. What can be done to fix it?