BenQ MX661 user manual Up/Down

14.Source

Displays the source selection bar. See "Switching input signal" on page 32 for details.

15.Volume +/-

Adjusts the sound level. See "Adjusting the sound" on page 42 for details.

16.Page Up/Down

Page up/down arrows when connected through USB to a PC. See "Remote paging operations" on page 40 for details.

17.Mute

Toggles projector audio between on and off.

18. Freeze

Freezes the projected image. See "Freezing the image" on page 41 for details.

19.CC

Display the video term description on screen which is provided for hard-of- hearing viewers.

20.Test

Displays the test pattern. See "Use build-in test pattern" on page 27 for details.

21.Teaching Template

Displays the selectable bar for teachers choosing the template as his/her suitable teaching background. See "Use teaching template" on page 44 for details.

22.3D setting

Activates the 3D On-Screen Display (OSD) menu item.

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

Introduction 13