LG DX420 User Manual

Copyright
This publication, including all photographs, illustrations and software, is protected under international copy-
right laws, with all rights reserved. Neither this manual, nor any of the material contained herein, may be
reproduced without written consent of the author.
© Copyright March, 2008
Disclaimer
The information in this document is subject to change without notice. The manufacturer makes no repre-
sentations or warranties with respect to the contents hereof and specifically disclaims any implied
warranties of merchantability or fitness for any particular purpose. The manufacturer reserves the right to
revise this publication and to make changes from time to time in the content hereof without obligation of
the manufacturer to notify any person of such revision or changes.
Trademark Recognition
Kensington is a U.S. registered trademark of ACCO Brand Corporation with issued registrations and pend-
ing applications in other countries throughout the world.
All other product names used in this manual are the properties of their respective owners and are ac-
knowledged.
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LG DX420 Specifications

General

Brand	LG
Model	DX420
Category	Projector
Language	English

Summary

Getting Started

Packing Checklist

Verify all included projector components after unpacking.

Projector and Remote Control Identification

Identify key parts, controls, and connections on the projector.

Setup and Operation

Connecting Input Devices

How to connect PCs and video devices to the projector.

Starting and Shutting Down

Procedures for powering the projector on and off safely.

Adjusting Image Quality

Fine-tune zoom, focus, and keystone for optimal image presentation.

OSD Menu Settings

Navigating the OSD Menu

Learn how to navigate and change settings within the on-screen display.

Image Menu Controls

Adjust picture settings like brightness, contrast, and sharpness.

Maintenance and Security

Replacing the Projection Lamp

Step-by-step guide for safely replacing the projector lamp.

Cleaning the Projector

Instructions for cleaning the projector lens and case.

Troubleshooting

Common Problems and Solutions

General tips and common issues with troubleshooting guidance.

Image and LED Error Issues

Diagnose common image display problems and understand LED error codes.

Specifications

Technical Specifications

Detailed technical data for the projector model.

Projection Distance vs. Size

Charts showing projection distance versus screen size.

Regulatory Compliance

FCC Warning and Safety Certifications

Important warnings regarding FCC rules and product safety certifications.