Madrigal Imaging MP-9 - Manual (Page 75)

Interrupting ACON
If you want to interrupt ACON during an auto-
matic convergence, press
. Shortly thereafter
an Exit dialog box will be displayed with the
cursor bar positioned on “No Save.” To quit
ACON and discard the convergence adjustments made up until that point,
press
or . To quit ACON yet retain the new convergence settings,
move the cursor bar to “Save” then press or (to examine the conver-
gence quality, press to display a crosshatch). To return to ACON, move
the cursor bar to “Continue ACON” then press or .
Learn Screen – Auto, Manual
Options 4 and 5 in the ACON Auto-Convergence menu allow you to
perform an ACON Learn Screen. A Learn Screen must be performed prior
to automatic convergence so that ACON knows the exact screen position,
relative to the Locator Assembly. Learn Screen is usually required only once
for each new installation. A Learn Screen MUST be performed when one of
the following conditions exist:
• The throw distance has changed since the last Learn Screen.
• The ACON Locator Assembly mounting position has changed
since the last time Learn Screen was performed.
• The screen type or size has changed.
• The source has changed.
Before performing a Learn Screen, make sure the projector is fully set up
and adjusted for the installation. It is important that all focus and geometry
adjustments have been made.
Two Learn Screen options are available: Manual Learn Screen and Auto
Learn Screen. Manual Learn Screen (menu option 5) is the preferred
method for performing a Learn Screen; it requires some user assistance but
assures the best possible Learn Screen. Auto Learn Screen, which requires no
user assistance, works well in installations where ACON can easily deter-
mine the screen limits. The screen limits may be difficult for ACON to
determine if the installation is a rear screen, the ambient light conditions are
poor, or the top the screen meets the ceiling. If an Auto Learn Screen was
used but ACON had difficulty determining the screen limits, the quality of
subsequent convergences will be affected – especially near the screen edges
and corners. Until you have experience using ACON for the installation, it
is recommended that Manual Learn Screen be used; the time required to
perform a Manual Learn Screen is typically less than sixty seconds.
When Manual Learn Screen is selected, a screen similar to that shown below
(left diagram) is displayed. Use
, , and to move the four black bars
to the outside edges of the screen. Initially, the arrow keys control the top
and left bars, as indicated by the bottom line of the text box. To move the
right and bottom bars, press
then use the arrow keys.
ENTER
EXIT ENTER
#
EXIT ENTER
EXIT ENTER
EXIT
OPERATION
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