Dell S520 Projector - Manual (Page 45)

Using Your Projector 45
NOTE: To capture a full image, ensure that the input signal
connected to the projector is at 1280 x 800 resolution.
T EST P ATTERN —Test Pattern is used to test focus and resolution.
You can enable or disable the Test Pattern by selecting Off, 1, or 2.
F ACTORY R ESET —Select Confirm and press to reset all settings to
its factory default. The below warning message appears:
Reset items include both computer sources and Video source
settings.
Test Pattern 1:
Test Pattern 2: