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APX-9
LEARNING A REFERENCE
Adjust one Reference Source with perfect geometry. This source can have either hori-
zontal or vertical frequency. Remember that other sources will have the same geometry
as this Reference Source. This means that if a source has 4:3 aspect ratio, all sources will
be adjusted with a 4:3 aspect ratio and the same horizontal and vertical amplitudes.
Follow the steps below to select:
Enter in the Adjustment Mode and select EYE-Q
TM
by pushing up or down keys of
the control disc. Now select SETUP using the up or down keys, finally select
LEARN REFERENCE.
EYE-Q
TM
will now project the Reference Source with horizontal green line inserted at the
top region and a horizontal green line inserted at the bottom region of the image.
Pushing the up or down keys of the control disc adjust the horizontal green line at
the top until it matches the top edge of the Reference Source perfectly, then press
<ENTER>.
Using the up or down keys of the control disc adjust the horizontal green line at the
bottom until it matches the bottom edge of the Reference Source perfectly, then
press <ENTER>.
Now EYE-Q
TM
projects the Reference Source with a vertical green line inserted at the
left and a vertical green line inserted at the right.
Pushing the up or down keys of the control disc changes the position of the verti-
cal green lines simultaneously; they are being shifted symmetrically inward and
outward with respect to the scan of the projector.
Use left or right keys of the control disc to change the phase of the Reference Source.
Use both (up or down) or (left or right) so that the green vertical lines perfectly match
the right-left edges of the reference image, then press <ENTER> (this will initiate the
learning procedure).
NOTE: If you had to use the left and right arrow keys to adjust the phase, this means
that the phase of the Reference Source was originally not adjusted correctly. Hence the
Reference Source may now fall short of the physical screen. To avoid this, re-adjust the
Horizontal Raster Shift (in the Random Access Adjustment mode, refer to Owner Man-
ual) so that the Reference source falls on the physical screen and repeat the Learn Ref-
erence selection.
Do not adjust the phase when repeating the Learn Reference procedure.
Pressing<EXIT> will interrupt the Learn Reference procedure if required.
WHAT IS BEING MEASURED BY EYE-Q
TM
Using the borderlines define above, EYE-Q
TM
knows exactly when the image starts and
stops with respect to time scale. EYE-Q
TM
is now able to project lines at the edges. Using
the border lines left and right, EYE-Q
TM
projects three vertical thick green lines at posi-
tions 5, 50 and 95%. Using the border lines top and bottom, EYE-Q
TM
projects three hor-
izontal thick lines at positions 5, 50 and 95%. EYE-Q
TM
then calculates the intercepts of
the three vertical and three horizontal lines resulting in nine points. These nine points
are the reference points for other geometry sources and are stored into memory.
NOTE: “DELETE ALL BLOCKS” in the Service menu does not delete the Reference
source parameters.