BenQ MX813ST Short-Throw DLP Projector User Manual - Page 13

14. Timer On 15. Timer Setup Activates or displays an on-screen timer Enters presentation timer setting based on your own timer setting. See directly. See "Setting the presentation "Setting the presentation timer" on page timer" on page 38 for details. 38 for details. Infra-Red (IR) remote control sensor is located on the front of the projector. The remote control must be held at an angle within 15 degrees perpendicular to the projector's IR remote control sensor to function correctly. The distance between the remote control and the sensor should not exceed 8 meters (~ 26 feet). Make sure that there are no obstacles between the remote control and the IR sensor on the projector that might obstruct the infra-red beam. • Operating the projector from the front • Operating the projector from the rear Approx. 15° Approx. 15° Replacing the remote control battery 1. Pull out the battery holder. Please follow the illustrated instructions. Push and hold the locking arm while pulling out the battery holder. 2. Insert the new battery in the holder. Note the positive polarity should face outward. 3. Push the holder into the remote control. • Avoid excessive heat and humidity. • There may be battery damage if the battery is incorrectly replaced. • Replace only with the same or equivalent type recommended by the battery manufacturer. • Dispose of the used battery according to the battery manufacturer's instructions. • Never throw a battery into a fire. There may be danger of an explosion. • If the battery is dead or if you will not be using the remote control for a long time, remove the battery to prevent damage to the remote control from possible battery leakage. Introduction 13