Adjusting The Projected Image - ViewSonic VS16900 User Manual

Adjusting the projected image

Adjusting the projection angle
If the projector is not placed on a flat surface or the screen and the projector are not
perpendicular to each other, the projected image becomes trapezoidal. To correct this
situation, see "Correcting keystone" on page 25
Do not look into the lens while the lamp is on. The strong light from the lamp may cause
damage to your eyes.
Auto-adjusting the image
In some cases, you may need to optimize the picture quality. To do this, press Auto Sync on
the remote control. Within 5 seconds, the built-in Intelligent Auto Adjustment function will
re-adjust the values of Frequency and Clock to provide the best picture quality.
The current source information will be displayed in the upper left corner of the screen for 3
seconds.
The screen will display ViewSonic logo while auto adjustment is functioning.
This function is only available when PC D-Sub input signal (analog RGB) is selected.
Fine-tuning the image clarity
Sharpen the image by rotating the focus
ring.
Correcting keystone
Keystoning refers to the situation where the projected image becomes a trapezoid due to
angled projection.
To correct this, besides adjusting the height of the projector, you will need to manually
correct it following one of these steps.
• Using the remote control
1. Press /
correction page.
2. Press to correct keystoning at the top of
the image. Press
the bottom of the image. Press
keystoning at the right side of the image.
Press to correct keystoning at the left side
of the image.
• Using the OSD menu
/ / to display the Keystone
to correct keystoning at
to correct
25
for details.
/
Press
/
Press
b
a
/
Press
/
Press