1.Open the "source" interface in the Settings < > on the home page.
2. Use the remote control's "source" button to choose.
When the external device is connected to the projector.
1
2
1
Signal Source
SELECT SOURCE
3-in-1 video cable
HDMI cable
U disk
Video player
Video player
Composite video
input interface
Note: 1.four points trapezoidal adjustment is an advanced function.
2.If the keystone degrees is more than 30 degrees, there may be
some image blur. Please be noted, trying to set the projector near
the center of the screen, as less degrees helps to project a better
image with much less image blur.
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