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How to set up dual projectors on a Windows computer?

Before connecting two projectors to your Windows PC/laptop, please ensure your system can run multiple video outputs. 1. To check your graphics card's maximum number of output signals, please refer to the graphics card manufacturer like the example below. Dedicate Graphics Card Integrate Graphics Card  2. Make sure your devi...

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...

How to fix shadows, ghosting, or double images on the projector screen?

Image artifacts are often caused by poor cable quality or signal interference. Use high-quality cables and avoid using excessive adapters. Use Bundled Cables: Test using the [original video cable] provided with the product. Remove Intermediate Devices: Disconnect any [docking stations], [adapters], or [video splitters]. Connect the ...

How to change the projector lamp in a projector?

The methods for changing the projector lamp (bulb) differ depending on the model of the projector. For accurate instructions, you can find lamp swapping instruction at ViewSonic product download page.   <Note> It is recommended that you use an authentic ViewSonic replacement lamp.  

Why is there a high-pitched noise or buzzing from my projector?

Slight humming is often normal for 4K models due to XPR technology. For other noises, check fan settings and power stability. Identify Normal XPR Noise (4K Models): 4K UHD projectors use XPR pixel-shifting technology, which produces a subtle high-pitched hum during operation. This is normal and not a defect. Adjust Fan Settings: Go to ...

Why are certain options greyed out in the OSD menu?

Certain menu settings are locked based on the current input signal or preset picture mode to maintain optimal image quality. Verify Input Source: When using digital connections (HDMI, DisplayPort), options like Phase or Horizontal Position are automatically optimized and locked. These are only available for manual adjustment under a VGA (a...

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...

How to purchase a lens for a projector

Or browse to your projector model in the Projector Accessories section of the ViewSonic Store.  If a Long Throw lens is available for your projector, it will be listed on the online store. Note: A Long Throw Lens is not available for all ViewSonic projectors. To check availability, or to purchase a long throw lens, please contact ViewSonic...

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 ...

How to mirror iPhone or iPad screen to the projector? (Wired Connection Guide)

Use a USB-C cable or an appropriate HDMI adapter for a stable, low-latency wired connection. USB-C Direct Connection (Recommended): Use a USB-C cable that supports video transmission (using the cable provided with the projector is highly recommended). Connect your device directly to the projector's [USB-C] port. Select [USB-C] a...

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