AC217A is designed to operate properly with any projector or display while requiring minimal set-up and adjustments.
SELECTING AN INPUT:
There are three buttons on the front panel for directly selecting one of the three inputs. The LED that is lit indicates
the active selection. The three input options are:
Video (composite)
S-Video (Y/C)
Y-C
B
-C
R
(component)
SELECTING AN OUTPUT FORMAT:
AC217A provides the five output formats listed below. Pressing the output format button on the front panel will cycle
through the choices. The LED that is on indicates the current output format.
480p
720p
1080p
1280 x 1024
1366 x 768
SELECTING AN ASPECT RATIO:
AC217A's unique preset aspect ratio conversion offers the user three choices for changing the input aspect ratio to
the desired output image aspect ratio. It is important to select the appropriate conversion setting in order for the output
image to appear geometrically correct.
16:9 to 16:9
This conversion scales a 16:9 crop of the input video raster and maps it to the output as a full screen image. It is intended
for displaying original letterbox images as a full screen image on 16:9 displays.
Input:
Letterbox in
4:3 frame
Output:
Full 16:9
frame
4:3 to Full Screen
This conversion takes the entire input video raster and maps it to the entire output raster. If the output display aspect
ratio is 4:3, the image will appear with the same geometry as shown on the input. If the output display aspect ratio is
16:9, the image will appear to be "stretched" in the horizontal direction. This is useful if the input video source was
an anamorphically compressed DVD, as it will now appear to be geometrically correct on the 16:9 display. Refer to
diagrams on top of page 5.
Note: This mode is not available with PAL input to 480p output.
4
OPERATION
AC217A - Intelligent Video Scaler
