Madrigal Imaging MP-8 User Manual download pdf (Page 73)

ACON Automatic ➤

Convergence

Press from the Convergence Menu to display

the ACON Auto-Convergence Menu. The menu

displays five ACON options for selection and

shows the most recent ACON status message

(if there is one).

Note: The ACON Auto-Convergence Menu is

available only if the ACON module is installed.

Before using ACON for the first time it is important to understand how

ACON operates. ACON consists of two primary components; a Locator

Assembly, normally mounted to the front of the projector, and an ACON

Control Board, located inside the projector. The Locator Assembly includes a

photosensor which, via two stepper motors, can monitor any point on the dis-

play screen. The ACON Control Board controls the viewing position of the

photosensor. During automatic convergence, small red, green, and blue targets

are displayed for viewing by the photosensor. Data from the photosensor is

analyzed and convergence adjustments are made accordingly. The lens of the

Locator Assembly can be observed to move about as each convergence zone is

analyzed and adjusted. No user intervention is required.

WARNING: IN RARE INSTANCES, FLASHING LIGHTS CAN TRIGGER

AN EPILEPTIC SEIZURE. DURING ACON OPERATION PERSONS

WITH EPILEPSY SHOULD NOT WATCH THE SCREEN.

Automatic Convergence – Full, Touchup, and Center Only

Options 1, 2 and 3 in the ACON Auto-Convergence Menu provide selec-

tion of three automatic convergence routines; ACON (full), ACON

(touchup), and ACON (center only). If the image has never been converged

or is poorly converged, select option 1, ACON (full). If the image has been

previously converged and only minor touch-up is required, select option 2,

ACON (touchup). If the red or blue image has shifted position and is not

registered with the green, select option 3, ACON (center only).

Note: It is important to have a good lighting environment when using ACON.

Dimmed incandescent lighting is preferred over fluorescent lighting. Avoid shadows

on the screen.

CON

OPERATION

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Madrigal Imaging MP-8 User Manual Page 73