Use build-in test pattern
You can adjust the image shape and focus status by observing the input signal content, or using the test pattern
Open the OSD menu and go to the SYSTEM SETUP: Advanced > Test Pattern > On. Press MODE/ENTER. The Test Pattern displays.
Fine-tuning the image size and clarity
1.Adjust the projected image to the size that you need using the zoom ring.
2.Then sharpen the image by rotating the focus ring.
Operation 27