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LH720 4000lms 1080P Conference

Let Your Innovation Shine through Accurate True Color

Application

How can I upgrade the firmware via LAN for the projector?
Please contact BenQ local service center for support. Our customer service professionals will help you upgrade the firmware.
Learn more
How do I mute the projector?
The projector can be muted using one of the following settings -
1. OSD > System setup > audio settings > mute
2.. Mute key on remote
The mute function will reset to default (Off) when the projector is restarted, which means audio will be on.
Therefore, if you wish to mute the projector permanently, please turn the audio volume down to 0. Volume levels do not reset for power cycles or restarts.
Does the projector support change slides on PowerPoint using a remote which emulates page up and page down commands for both Windows PC and MacOS?



This function is only working with Windows PC/Laptop which is designed with and has PgUP and PgDn keys. HDMI (deisgned with MHL functino) and USB Mini-B connection are required from projector to your Windows PC/Laptop.


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How do I clean my projector lens?
It is normal to have some dust on the lens surface. Please refer to the below video for a guide to cleaning your projector's lens.
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Specification

The Wired remote port is used to connect to a wired remote control. What is the maximum distance supported by the wired remote control?

The maximum distance supported by the wired remote control is 10 meters.


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Explanation

What can I do if my projection screen shrinks when Duplicate Mode is applied in Windows?

The displayed image ratio shrinks because the projector adjusts the displayed image ratio based on a received resolution which does not match the output resolutions the projector is designed for.

 

Please follow the steps below if you would like to have the displayed image remain intact: 


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Further Query

The Wired remote port is used to connect to a wired remote control. What is the maximum distance supported by the wired remote control?

The maximum distance supported by the wired remote control is 10 meters.


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As Abobe Flash support ends at the end of Dec 2020, the Crestron network interface will no longer work after that. Is there any solution for this?
As Adobe will no longer support Flash Player after December 31 2020, access to Flash Player will be removed from all browsers gradually, including Internet Explorer and Google Chrome. As a result, the Crestron RoomView service from BenQ, which is Flash-based, will also be discontinued. BenQ suggests using the following alternatives to manage and monitor multiple projectors. 
 
1. Crestron RoomView Express: this software can be downloaded from Crestron’s official website.
https://www.crestron.com/resources/get-roomview
2. BenQ DMS Local: this software can be downloaded from the official BenQ website. Please reach out to BenQ service for further assistance with installation if needed.
https://www.benq.com/en-us/business/projector/dms-local.html

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How can I avoid the DLP Link signal getting lost sync when watching the Blue-Ray 3D video?

In the DLP Link technique, the projector inserts light pulses to identify whether it is a right or left frame, thus forming a seamless 3D experience with active DLP 3D glasses.

 

When you are watching DLP Link 3D(Frame Packing), there are some insights we would like to share with you.

 

1. Make sure that no other Projectors are sending DLP Link signals in the

    same room.

 

2. Watching in a relatively dark environment to avoid being influenced

    by other light sources.

 

3. Check the battery level on your DLP 3D Glasses

 

4. Adjust the watching distance and screen size within a normal range(Specs)

 

5. Stay in a fixed position, and try not to move too far/quickly on your

    head/3D glasses.

 

6. Try to adjust a colorful setting on the projector and avoid external light

    direct to your 3D glasses/screen.

 

7. If it's still not working, the issue might be caused by Hardware margin.

    You can switch to another projector or 3D glasses for a try.


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What can I do if my projection screen shrinks when Duplicate Mode is applied in Windows?

The displayed image ratio shrinks because the projector adjusts the displayed image ratio based on a received resolution which does not match the output resolutions the projector is designed for.

 

Please follow the steps below if you would like to have the displayed image remain intact: 


Learn more
How can I upgrade the firmware via LAN for the projector?
Please contact BenQ local service center for support. Our customer service professionals will help you upgrade the firmware.
Learn more
How do I mute the projector?
The projector can be muted using one of the following settings -
1. OSD > System setup > audio settings > mute
2.. Mute key on remote
The mute function will reset to default (Off) when the projector is restarted, which means audio will be on.
Therefore, if you wish to mute the projector permanently, please turn the audio volume down to 0. Volume levels do not reset for power cycles or restarts.
Does the projector support change slides on PowerPoint using a remote which emulates page up and page down commands for both Windows PC and MacOS?



This function is only working with Windows PC/Laptop which is designed with and has PgUP and PgDn keys. HDMI (deisgned with MHL functino) and USB Mini-B connection are required from projector to your Windows PC/Laptop.


Learn more
How do I clean my projector lens?
It is normal to have some dust on the lens surface. Please refer to the below video for a guide to cleaning your projector's lens.
Learn more