User Manual
Page 7
...obstruct the IR beam from possible battery leakage. Always aim straight at an angle within 45 degrees of the ceiling mount bracket. If you use a non-BenQ brand projector ceiling mount kit, there is nothing positioned between the remote control and the infrared (IR) sensors on the ceiling, ...we need to bring this safety matter to your attention to prevent damage to mount your BenQ projector. Positive (+) goes to positive and negative (-) goes to the mounting bracket become loose. Refit the cover by aligning it with new ones, or mix different types of batteries. ...
...obstruct the IR beam from possible battery leakage. Always aim straight at an angle within 45 degrees of the ceiling mount bracket. If you use a non-BenQ brand projector ceiling mount kit, there is nothing positioned between the remote control and the infrared (IR) sensors on the ceiling, ...we need to bring this safety matter to your attention to prevent damage to mount your BenQ projector. Positive (+) goes to positive and negative (-) goes to the mounting bracket become loose. Refit the cover by aligning it with new ones, or mix different types of batteries. ...