Service mode, Dynamic astigmatism (spot shape adjustment) – Barco R9002240 User Manual

Page 46

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Service Mode

7-6

5975688 BARCOVISION 1609s 131097

















Spot shapes

before dynamic

astigmatism correction

Spot shapes

after dynamic

astigmatism correction

Diagonal

astigmatism correction

(use the and

arrow key)

Axial

astigmatism correction

(use the and

arrow key)

Select with or

then <ENTER>

<EXIT> to return.

IDENTIFICATION

COPY A BLOCK

DELTE A BLOCK

DELETE ALL BLOCKS

CHANGE PASSWORD

CHANGE LANGUAGE

RUN TIME

SET TO MIDPOSITION

CONVERGENCE MID

DYNAMIC ASTIGMATISM

MORE...

SERVICE MODE

DYNAMIC ASTIGMATISM

ON SELECTED SOURCE

RED

GREEN

BLUE

ON GENLOCKED PATTERN

RED

GREEN

BLUE

Select pattern or color

with or

then <ENTER>

<EXIT> to return.

DYNAMIC ASTIGMATISM

First adjust the defocusing

of the image.

SEL : select area using arrow

keys

ADJ : adjust axial astigmatism

using

or , diagonal

astigmatism using

or

Toggle between SEL and ADJ

with <ENTER>

<ENTER> to continue

<EXIT> to return.

SEL : select the adjustment area on the screen where the spot shape

has to be corrected.

Use the arrow keys to select one of the 8 areas. Press ENTER to

continue to ADJ.

ADJ : adjust the spot shape in the axial or diagonal direction when

using the arrow keys for the selected area. Adjust until the spot

shape is circular.

Use the up and down arrow keys for the diagonal astigmatism

adjustment and the left and right arrow keys for the axial astigmatism

adjustment. Press ENTER to continue selecting a new area.

The adjustment direction (axial or diagonal) and adjustment value are

Follow the next procedure :

Highlight 'Dyn. Astigmatism' by pushing the joy disk up or down and

press ENTER to select.

EXIT returns to the path selection main menu.

Select the source type, selected source or genlock pattern, by

highlighting the color for which the spot shape has to be corrected

and press ENTER.

e.g. when selecting RED under 'on genlocked pattern', the projector

switches to a genlocked pattern.

Press ENTER to continue adjustment.

Increase the contrast level using the Contrast Control to near

maximum. Using that "+" Sharpness Key, defocus the image until the

dots are large and easily visible. Press ENTER to continue to SEL.

Dynamic Astigmatism (spot shape adjustment)

The spot shape adjustments correct the spot shape in 8 different

areas on the screen and that for the three colors separately.

The spot shape is adjusted according to the axial axises and the

diagonal axises when using the arrow keys on the RCU.

These adjustments have to be done on a dot pattern (e.g. the internally

generated pattern) with standard line frequency (15 kHz). The

adjustment values are stored in the EEPROM and remain the same for

all frequencies.

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