How do I sharpen the image and fix distortion on my Yaber Y21 projector?

[GageAnn]

To get the best picture from your Yaber Y21 projector, follow these steps to adjust focus and keystone: First, take off the lens cover. Next, use the focus ring on the projector; turn it slowly and watch the image on the screen. Keep adjusting until the image is sharpest. If the picture looks like a trapezoid or is skewed, use the keystone ring to fix it. Adjust the keystone until the image is a perfect rectangle. If the image is still not clear, try moving the projector closer to or further from the screen. This can help with focus. By following these steps, you should be able to get a clear and properly aligned image with your Yaber Y21.