Dell 1210S User Manual page 41

You can enable or disable the Test Pattern by selecting Off, 1 or 2. You can also
invoke the Test Pattern 1 by pressing and holding down
control panel simultaneously for 2 seconds. You can also invoke the test pattern 2
by pressing and holding down
simultaneously for 2 seconds.
F R —
ACTORY ESET
warning message below appears.
Reset items include both computer sources and video source settings.
and
Test Pattern 1:
Test Pattern 2:
Select and press
buttons on the control panel
to reset all settings to its factory default, the
Using Your Projector
and buttons on the
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