What to do if there is no sound from the projector’s speakers when connected the PC/laptop to projector?

1. Ensure that your monitor has built-in speakers. You can check it on Product's website page -> Specification -> Audio.   2. Check the cable connection: a. Make sure the connection is secured.  b. Re-plug or try another HDMI (Premium) certificated cable in direct connection. c. If using a VGA cable, ensure the audio cable is connected ...

Can I change the orientation of the projector when in use?

Please refer to user guide on page "Important Safety Instructions". Some projectors may be claimed to use at a limited angle dependent on the light source, such as lamp or LED.

Why is my projector fan making an unusual noise?

Most fan noise issues are related to settings or ventilation. Check the High Altitude Mode and ensure the vents are clear before considering repair. Troubleshooting Steps: Verify Device Specs: If you own a fanless portable model and hear strange noises, contact support immediately as there are no moving parts intended to make sound....

Why does my projector turn on and then suddenly shut off?

Automatic shutdown is usually triggered by overheating protection, power-saving settings, or lamp compatibility issues. Check the LED indicator lights for diagnostic clues. Troubleshooting Steps: Check LED Indicators: Temp Light (Red): Indicates overheating. Ensure vents are clear and fans are running. Let the unit cool for 30 minute...

How to fix the keystone effect (distorted image) on a projector?

Ensure the projector is level and perpendicular to the screen, then use the built-in "Keystone" settings to square the image. When you see below situation, please follow below instructions to adjust:   Physical Alignment: Place the projector on a flat surface. Ensure the lens is at a 90-degree angle relative to the center of...

Why does my projector automatically shut down during use?

Auto-shutdown is typically triggered by overheating protection. Ensure proper ventilation, clean the dust filters, and enable "High Altitude Mode" if necessary. Check LED Indicators: If the Temp light is red or flashing after shutdown, the projector has overheated. Improve Airflow: Keep at least 50cm of clear space around intake an...

Android mobile phones are unable to mirror cast via Google Home App.

Recently we've noticed an incompatibility issue between some ViewSonic smart projectors and Google Home App with the latest update. Some users might not see ViewSonic projectors on the device list when trying to mirror cast their Android mobile phone to ViewSonic projectors via Google Home App.  We are aware of this issue and currently workin...

How to adjust the image size on a projector?

Adjust the image size by changing the "Throw Distance," rotating the "Zoom Ring," or using the "Digital Zoom" setting in the menu. Adjust Throw Distance (Physical): This is the most effective method. Move the projector further from the screen for a larger image, and closer for a smaller one. Use the Zoom Ring (Optical): Rotate t...

How to reset lamp timer

After replacing the Projector Lamp, resetting the lamp timer is highly recommended to help keep track of how long the lamp has been on. The Lamp Timer will also let you know when the lamp needs to be replaced. The Lamp timer can be found in the projector Menu. The specific location of the timer can be found in different locations depending ...

How to enable the remote controller PgUp and PgDn functions?

In order to enable the PgUp and PgDn function on your remote controller for the PX701-4K projector, please follow the instruction below: Besides your video cable (HDMI), please connect an additional USB cable from the back of the PX701-4K projector to your PC/Laptop. Change the control method to USB by entering your OSD menu -> System ...