3M X21 - User Manual

Thank you for purchasing this projector.
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Digital Projector X21/X26
Operator's Guide
Trademark acknowledgment
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Summary

Setting Up the 3 M Digital Projector

Arrangement and Placement

Connecting Devices

Projector Basic Operations and Controls

Remote Control Usage

Power Management

Turning the projector on/off and handling the lens cover.

Image and Audio Adjustments

Adjusting volume, muting, selecting inputs, aspect ratio, and keystone.

Advanced Operating Features

Navigating the Projectors Menu System

Picture and Image Menus

Input, Setup, and Audio Menus

Security and Option Menus

Managing security features, custom buttons, and system options.

Projector Maintenance and Troubleshooting

Lamp and Air Filter Maintenance

Procedures for replacing the lamp and cleaning the air filter.

Common Troubleshooting Issues

Diagnosing problems using messages, indicator lamps, and common phenomena.

Indicator Lamp Guide

Explains the meaning of different indicator light combinations.

3M X21 Specifications

General

Brightness	2000 ANSI lumens
Native Resolution	XGA (1024 x 768)
Contrast Ratio	2000:1
Display Type	LCD
Resolution	XGA (1024 x 768)
Projection Technology	3LCD
Weight	2.9 kg