BenQ MH680 - User Manual

Other manuals for BenQ MH680

Brochure & Specs2 pages

Specifications2 pages

Questions and Answers

J
Jeffrey ClarkAug 11, 2025
What to do if my BenQ MH680 has no picture?
- J
  Julie TurnerAug 11, 2025
  If your BenQ Projector is not displaying a picture, there are several potential causes: * The video source might not be on or properly connected. Ensure the video source is turned on and the signal cable is correctly connected. * The projector may not be correctly connected to the input signal device. Check the connection. * The wrong input signal might be selected. Use the SOURCE key on the projector or remote control to select the correct input signal. * The lens cover might still be closed. Open the lens cover.
A
abutlerAug 17, 2025
Why my BenQ MH680 does not turn on?
- C
  craighendersonAug 18, 2025
  If your BenQ Projector is not turning on, it could be due to the following reasons: * There's no power from the power cord. Make sure the power cord is plugged into the AC power jack on the projector and into a working power outlet. If the power outlet has a switch, ensure it is switched on. * You're attempting to turn the projector on again during the cooling process. Wait until the cooling down process has completed.
T
Timothy HarrisAug 26, 2025
How to fix a BenQ MH680 Projector remote control that is not working?
- D
  Donna SotoAug 26, 2025
  If the remote control for your BenQ Projector isn't working, consider these possible causes: * The battery is out of power. Replace the battery with new ones. * There is an obstacle between the remote control and the projector. Remove the obstacle. * You are too far away from the projector. Move closer, standing within 8 meters (26 feet) of the projector.
P
patriciajonesSep 3, 2025
How to fix a blurred image on a BenQ MH680?
- M
  Margaret FloresSep 3, 2025
  If the image from your BenQ Projector appears blurred, here are a few things to check: * The projection lens is not correctly focused. Adjust the focus of the lens using the focus ring. * The projector and the screen are not aligned properly. Adjust the projection angle and direction, as well as the height of the projector if necessary. * The lens cover is still closed. Open the lens cover.

Summary

Important Safety Instructions

General Safety Guidelines

Essential safety guidelines for operating the projector safely and preventing damage to user and device.

Positioning Your Projector

Choosing an Installation Location

Obtaining Preferred Image Size and Dimensions

Connection

Connecting Signal Sources

Operation

Starting Up and Basic Image Adjustment

Guides on powering on, adjusting projection angle, and correcting keystone distortion.

Using Menus, Security, and Signal Selection

Image Optimization and Advanced Operation

Powering Down and Special Features

Maintenance

Projector Care and Cleaning

Provides instructions on cleaning the lens and projector case, and general care.

Lamp Information and Replacement

Explains lamp life, replacement timing, warnings, and procedures for replacing the projection lamp.

Troubleshooting

Common Issues and Remedies

Provides solutions for common problems like power issues, no picture, blurred images, and remote control failures.

Specifications

Projector Technical Specifications

Lists detailed optical, electrical, mechanical, control, input/output, and environmental specifications.

BenQ MH680 Specifications

General

White Brightness	3000 lumens
Native Resolution	1920 x 1080
Contrast Ratio	10, 000:1
Aspect Ratio	16:9
Throw Ratio Range	1.15 - 1.5:1
Keystone Effect	yes
3D	yes
Minimum Screen Size	45 inches
Maximum Screen Size	300 inches
USB Ports	2
Video Input	composite video, hdmi, s-video, vga
Inputs	composite video, hdmi, rca, s-video, usb type a, usb type b, vga
Remote Control	yes
OS Compatibility	windows