BenQ MX723 - User Manual

Questions and Answers

J
jameshullAug 11, 2025
How to fix BenQ MX723 Projector that does not turn on?
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  Jesse StricklandAug 11, 2025
  If your BenQ projector isn't turning on, there are a couple of things to check: * Ensure the power cord is securely plugged into both the AC inlet on the projector and a working power outlet. If the outlet has a switch, make sure it's turned on. * If you've recently tried turning it off, the projector might be in the cooling down process. Wait until this process is complete before attempting to turn it on again.
E
ericsuarezAug 18, 2025
How to fix blurred image on BenQ Projector?
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  Ryan McdowellAug 18, 2025
  If you're experiencing a blurred image with your BenQ projector, try the following: 1. Adjust the focus of the lens using the focus ring. 2. Adjust the projection angle, direction, and height of the unit to ensure proper alignment between the projector and the screen. 3. Ensure that the lens cover is open.
T
Tara MedinaAug 26, 2025
What to do if BenQ MX723 Projector remote control does not work?
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  Michael MilesAug 26, 2025
  If your BenQ projector's remote control isn't working, consider these possibilities: * The battery may be out of power. Try replacing it with a new one. * There might be an obstacle blocking the signal between the remote control and the projector. Remove any obstructions. * You may be too far away from the projector. Ensure you are within 8 meters (26 feet) of the projector.
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myersbethSep 3, 2025
Why my BenQ Projector has no picture?
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  Jeffery JohnsonSep 3, 2025
  If your BenQ projector displays no picture, several factors could be the cause. First, ensure that the video source is turned on and the signal cable is correctly connected. Second, verify that the projector is correctly connected to the input signal device. Third, select the correct input signal using the Source key on the projector or remote control. Finally, make sure the lens cover is open.

Summary

Important safety instructions

Introduction

Projector features

Mounting the projector

Positioning your projector

Choosing a location

Guidance on selecting optimal placement for the projector based on room layout.

Obtaining a preferred projected image size

Factors affecting projected image size and how to achieve desired dimensions.

Projection dimensions

Tables detailing projection distances and offsets for various screen sizes.

Connection

Connecting a computer or monitor

Instructions for connecting PCs and monitors via VGA, LAN, and HDMI.

Connecting Video source devices

Methods for connecting HDMI, Component Video, S-Video, and composite sources.

Operation

Starting up the projector

Adjusting the projected image

How to adjust projection angle, auto-adjust image, and fine-tune image clarity.

Correcting 2 D keystone

Method for correcting trapezoidal distortion using the keystone function.

Adjusting corner fit

Manually adjusting the four corners of the projected image.

Fine-tuning image clarity and size

Switching input signal

Selecting the aspect ratio

Optimizing the image

Fine-tuning image quality in user modes

Adjusting the sound

Select the lamp saver mode

Shutting down the projector

Securing the projector

Using a security cable lock

How to attach a security cable to prevent theft.

Utilizing the password function

Setting up and managing password protection for projector access.

Maintenance

Care of the projector

Lamp information and maintenance

Understanding lamp hour, extending lamp life, and setting lamp modes.

Troubleshooting

Common projector issues and solutions

Addresses common problems like power, picture, remote control, and password errors.

Specifications

BenQ MX723 Specifications

General

Resolution	XGA (1024 x 768)
Lamp Life (SmartEco)	6000 hours
Display Technology	DLP
Projection Size	30 - 300 inches
Keystone Correction	Vertical: ±40 degrees
Noise Level (Economic)	29 dB
Power Consumption (Standby)	0.5 W
Brightness	4000 lumens
Contrast Ratio	13000:1
Connectivity	HDMI, VGA, USB, RS-232
Aspect Ratio	4:3
Zoom Ratio	1.2:1
Noise Level (Normal)	33 dB