Getting your projector screen to lay flat against the wall is an important part of setting up your home theater. An askew picture will make the image look wonky and distorted, and could completely ruin your viewing experience.
Luckily, projector manufacturers have already thought of this and developed a solution.
Keystone correction is a handy feature that positions the projector screen flush against the wall and is a total game changer for any projector fiend.
But fine-tuning a unit’s keystone correction can be tricky, and sometimes you need to go back to square one and start over.
How can you reset the keystone correction?
Keep reading to find out!
To reset your Epson projector’s keystone correction, press the remote control’s Menu button and open the Settings tab. Click on Keystone and select the Reset option at the bottom of the pop-up window.
Some Epson models do not have the option to only reset the Keystone correction. In this case, you must select Reset at the bottom of the Settings page to reset all picture settings.
To adjust the keystone correction on an Epson projector, you must either use your projector’s remote and settings, or the dedicated keystone correction buttons on your unit’s operating panel.
If your model doesn’t have keystone correction buttons on the operating panel, use your remote to open the Keystone menu.
There will be two sliders for you to adjust. The V-Keystone slider moves the screen forward and backward vertically, while the H-Keystone slider moves the screen horizontally.
Adjust the sliders until you’ve achieved your desired picture settings.
If your projector has Keystone buttons on the control panel, notice that the first one will adjust the top half of the screen’s angle, and the second will adjust the bottom half of the screen. Press both buttons accordingly until the screen is straight.
Watch the video below to learn how to reset and adjust your Epson projector’s keystone correction.
To reset your Optoma projector’s keystone correction you will need to reset all the settings, returning it to its out-of-the-box state.
Open the Main menu by pressing the Menu button on the remote. Click on Setup found on the bottom of the screen. Select Reset and press Yes in the popup window to confirm your choice.
To adjust the keystone correction, go to Display on the Main menu page. If you want to use your projector’s auto-keystone correction feature, toggle Auto Keystone on. Note that this will only alter the vertical keystone correction.
You can also tweak the keystone correction yourself under Keystone. Use the arrow buttons on your remote or projector to manipulate the keystone.
Remember to select the correct Projection mode (i.e. how your projector is set up), as this will improve the auto-keystone’s accuracy.
Watch the video below to see how to adjust an Optoma projector’s keystone correction.
Resetting your Xgimi projector’s keystone correction couldn’t be simpler.
First, open the Manual Settings page. Find and press the remote button marked with three horizontal lines directly under the power button.
Select Restore Defaults and watch the screen return to its default keystone correction.
To modify the keystone correction, click on the gear icon to open the Settings. Scroll down and select Device Preferences, then click Display. Click on Keystone Correction and select your projection mode (front or side).
If your projector is placed directly in front of the screen, you can turn auto-keystone correction on or click Offset and adjust the vertical keystone manually.
If your projector is set to the side of the screen, click on Manual Settings. Press your remote’s arrow butts to adjust the keystone using the image on-screen. You’ll know the image is straight and flush to the wall once the picture of the circle is precisely rounded.
You cannot correct or reset an Xgimi projector’s keystone without its remote. If your remote isn’t working, check out our article My XGIMI Remote Not Working: How To Fix It?
Watch the video below to see how to modify and reset an XGIMI projector’s keystone correction.
Read more: How To Reset an XGIMI Projector?
To reset a BenQ projector’s keystone correction click the Quick Install button on your remote. Alternatively, you can open the quick install menu by clicking the Menu button on your remote, selecting Display, then tapping Keystone.
Once you see the keystone page on your screen, press your remote’s Back button for two seconds to reset the keystone correction.
To alter the keystone correction, use the arrow buttons to slant the image until it’s flush with the screen.
Some BenQ models also have an auto-keystone option, which will align the image against the wall for you. Note that you must turn off auto-keystone before adjusting the keystone to save your changes once your projector is powered off.
Watch the video below to see how to manually configure a BenQ projector’s keystone correction.
Did you know your Sony projector remote has a Reset button? It’s true! You can use this button to reset individual settings, without having to factory reset the whole projector.
To reset the keystone correction, press the Menu button on your remote, highlight Installation, then click the Enter button.
Highlight V-Keystone, then press your remote’s Reset button. It’s that easy!
To configure the keystone correction, open V-Keystone. Use the vertical arrow buttons to change the value from positive to negative or vice versa. This value determines how forward or backward tilted the image is.
If the top half of the image is broader than the bottom, change the keystone value to a positive number. If the bottom half is broader than the top, make the keystone value a negative number.
Click the Menu button to close the pop-up window and you’re all set!
Note that some Sony projector models do not have a keystone correction feature, so you may have to physically move or tilt your projector to get the desired dimensions.
Use your JVC projector remote to open the Settings Menu. Select the third tab on the top of the window labeled Installation. Notice a Reset button on the bottom right corner of the screen. Click it to reset all installation settings.
To fix your JVC projector’s vertical keystone correction, use the arrow buttons to adjust the keystone slider, increasing or decreasing the values.
JVC projectors do not have a horizontal keystone correction setting.
Tips for Configuring a Projector’s Keystone Correction
Follow our suggestions below when configuring keystone correction.
There’s no way around it, manually adjusting the keystone correction can be complicated. Thankfully, there are tips and tricks you can use to make your projector’s image as straight and flat as possible.
Use Your Unit’s Test Pattern
Some projectors also have a built-in test pattern (a black and white grid) to help you ensure your screen is straight and not distorted.
Use the test patterns vertical and horizontal lines as a guide to manually correct the auto keystone.
Press the arrow keys and tilt the pattern until it’s straight and all the boxes are the same size.
This test pattern also comes in handy when focusing on your projector!
Turn off all ambient lighting to ensure you can see the grid properly.
If your unit doesn’t have a built-in test pattern, fear not!
You can find videos online, like the one below, which display grids and circles to help guide you.
Pull up the image on your phone or laptop and connect them to your projector. Make sure the image is clear on your device, so it won’t appear blurry because of a poor internet connection.
Ensure Your Projector Screen is Taught
Make sure whatever surface you’re projecting onto (a screen, sheet, etc.,) is completely smooth and taught. It will be extremely challenging to confirm that the image is straight and aligned if your screen is wrinkled.
If you’re using a portable projector screen, make sure it’s positioned properly and is not tilted.
Modifying a projector’s keystone correction may take some time, especially if you’ve never done it before. To ensure the most accurate results, go slowly and make small tweaks.
Don’t worry if it looks wonky, that’s what the reset button is for!
Wrapping Things Up
Knowing how to reset your projector’s keystone correction will undoubtedly come in handy, so it’s a good skill to have in your reservoir.
There will always be trial and error involved in perfecting your screen’s keystone, but don’t lose hope!
When possible, use your unit’s built-in test pattern or find one online.
Make sure your projecting surface is smooth and clear of imperfections and don’t get frustrated if you can’t configure it correctly on the first try. It happens to the best of us!
What’s your experience resetting a projector’s keystone correction?
Have our tips above helped you to configure keystone correction?
Let us know in the comments below!
Yesenia Achlim is a technical copywriter and editor with a focus on AV equipment. She aims to break down complicated topics and make technology accessible, no matter your technical expertise. When she’s not teaching you how to replace a projector lamp, you can find her reading and baking.