BenQ LU9915 User Manual
![BenQ LU9915 manual cover](/images/MzbxevatUmwpzwxvYAsOArNY/thumbs/thumb175x175.webp)
To clean the lens, use a can of compressed air to remove dust. For smudges, gently wipe with a microfiber cloth. Avoid using liquid cleaners directly on the lens.
First, power off the projector and unplug it. Allow it to cool for about 45 minutes. Remove the lamp cover screws and lift the cover. Unscrew the lamp module and carefully pull it out. Insert the new lamp, secure it with screws, and replace the cover.
Ensure the projector is in a well-ventilated area and the vents aren't blocked. Regularly clean the air filters and make sure the fan is operating properly. If the issue persists, contact support.
Use the lens shift dials located on the projector to adjust the image vertically and horizontally. For further alignment, utilize the keystone correction feature through the projector's menu.
Clean the lens and air filters every 3-6 months depending on usage. Check the lamp hours regularly and replace the lamp when it reaches the end of its lifespan. Perform a full system check annually.
Attach a compatible wireless dongle to the projector's USB port. Navigate to the network settings in the projector's menu, select your network, and enter your password to connect.
Check the video cable connections for any loose connections or damage. Make sure the input source is stable and update the projector's firmware if necessary.
Go to the projector's menu, select 'System Setup', then 'Advanced'. Choose 'Reset' and confirm to restore the projector to its factory settings.
Ensure the power cable is securely connected and the outlet is functional. Check the power button and remote control batteries. If the problem persists, the projector may require servicing.
The BenQ LU9915 is designed for high-demand environments and supports 24/7 operation. Ensure regular maintenance and proper ventilation to avoid overheating.