BenQ PE8720 User Manual
![BenQ PE8720 manual cover](/images/nZwyuVvSHWtwpSePQqfDcdVH/thumbs/thumb175x175.webp)
To reset the lamp timer on the BenQ PE8720, access the on-screen menu, navigate to the 'Setup' menu, and select 'Lamp Settings'. Choose 'Lamp Reset' and confirm the reset to zero the counter.
Ensure the projector is properly plugged in and the power outlet is functional. Check that the power button is functioning and the lens cover is removed. If the issue persists, inspect the lamp and replace it if necessary.
Turn off the projector and unplug it. Locate the air filter cover and remove it. Take out the filter and use a vacuum cleaner to remove dust. Reinsert the filter and cover securely.
Check the focus ring and adjust it until the image is sharp. Ensure the projector is at the correct distance from the screen and the lens is clean. Adjust the zoom and keystone settings if necessary.
Regularly clean the air filters and lens, inspect and replace the lamp when needed, and ensure the projector is stored in a dust-free environment. Check for firmware updates periodically.
Use a VGA or HDMI cable to connect the laptop to the projector. Select the correct input source on the projector using the remote control or on-device buttons. Adjust display settings on your laptop if needed.
Ensure the projector has adequate ventilation and is not placed in confined spaces. Clean the air filters to improve airflow. If the problem continues, consider reducing the ambient temperature or using a cooling pad.
Visit the BenQ support website and download the latest firmware for the PE8720. Follow the instructions provided to update via USB or another applicable method. Ensure the projector is powered on and stable during the update.
Check the input cable connections for any damage or loose connections. Adjust the color settings on the projector menu. If the issue persists, it may be necessary to recalibrate the color settings or consult technical support.
Purchase a compatible ceiling mount kit. Securely attach the mount to the ceiling, ensuring it can support the projector's weight. Attach the projector to the mount, align it with the screen, and adjust the settings for optimal viewing.