The AC adapter for the projector does not work

Verify adapter plugged into a wall outlet Make sure the AC adapter is firmly and securely plugged into the wall outlet.  Although it may sound obvious, the adapter can become loose without even knowing.  If it's not plugged in all the way, it can make it seem like the adapter is not working, but it may just not be getting power from the wall...

Want to know about supported picture, video and audio formats

Each product has its own list of compatible video, audio and image formats. The best way to know what file type is specifically supported by your product is to look in the user guide for your particular model.

The image is out of focus

Make sure that you have set it to its native resolution. Check the user guide to determine what the native resolution of the display is and set it to the native resolution if  the video source that is being used can support it. Digital signals (HDMI, DisplayPort) normally produce sharper images. If you are using a VGA or analog signal try to s...

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...

There are issues connecting an external monitor to a computer/projector

If the external monitor/ projector is not automatically detected and displaying an image, you will need to use a function key to enable or activate the function. Laptop manufacturers have different methods to activate an external monitor. Refer to the laptop's user guide/manual or the manufacturer for instructions to activate the video port for...

The projector fan stays on after the unit has been turned off

On some projector models, the fan will remain on after the unit has been shut down and in standby mode. This is normal operation for any model with the network feature that had been enabled. The feature can be disabled by selecting Menu>Option>Network > Off. If the Network feature is enabled then expect the fan to remain on at a lower speed w...

LS921WU is not recognized nor controlled through the web browser by PJ-link

Applicable models: LS600W, PG707X, PG707W, PG706HD, PG706WU, LS831WU, LS750WU, LS850WU, LS860WU, LS920WU, LS921WU, PX728-4K, PX748-4K Please make sure the below webpage password is set in ViewSonic Network control first due to SB-327 law requirement.   1. Enter the IP address of the projector in the address bar of your browser and press E...

What to do if there is high pitched noise coming from the projector?

Please connect the projector to a different AC outlet.   Connect the projector to another computer/player.   In case above crosscheck remains the same result, please contact ViewSonic service center.

What to do if there is a shadow or double image on the projector screen?

Analog extension cables, adapters, docking stations and longer cables may be prone to generate ghosting, lines, double images, or poor focus. The improper shielding of the extension cables will cause a shadowing or ghosting effect due to mismatch of the input impedance between the video source, the video cable, and the projector. Please use th...

How to clean the projector lens

To clean the projector lens, do the following: Apply a non-abrasive camera lens cleaner to a soft, lint-free cloth. Do NOT spray the cleaner directly onto the lens. Avoid abrasive cleaners/solvent, as they may permanently damage the lens. In a circular motion gently wipe the lens clean. Replace lens cap if projector is not to be used.

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