Runco DTV-1200 - Manual (Page 73)

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Start Up
To start up the dynamic astigmatism:
1. Push the cursor key or to highlight 'Dynamic Astigmatism' (menu 1).
2. Press ENTER to display the dynamic astigmatism menu (menu 2). The dynamic astigmatism can be adjusted
on the selected source or on pattern lock on the selected source (genlocked pattern). The way of adjusting is
the same for both ways and for each color. The explanation will only be given for one color.
COMMON SETTINGS
DYNAMIC ASTIGMATISM
GAMMA CORRECTIONS
CRT RUN IN CYCLE
CRT DRIVE MODE
MEMORYBANKS : ON
FLYBACK TURNOVER POINT
MENU POSITION : STANDARD
Select with or
then <ENTER>
<EXIT> to return menu 1
DYNAMIC ASTIGMATISM
ON SELECTED SOURCE
RED
GREEN
BLUE
ON GENLOCKED PATTERN
RED
GREEN
BLUE
FOCUSING ON CURRENT SOURCE
Select with or
then <ENTER>
<EXIT> to return
menu 1
How to adjust?
The adjustment of the dynamic astigmatism is done on the selected source or genlocked pattern and for each
color separately. The menu will be displayed hereafter for a genlocked pattern on the green image.
To adjust, follow the next procedure:
1. Push the cursor key or to highlight 'green’ under Genlocked Pattern (menu 1).
2. Press ENTER to display the dynamic astigmatism adjustment menu (menu 2).
The screen is divided into 25 areas (5 x 5) (menu 3). In each area, the spot shape can be adjusted.
3. Use the cursor keys to select the desired area.
4. Increase the contrast level using the Contrast Control to near maximum. Using the "+" Sharpness Key,
defocus the image until the dots are large and easily visible.
DYNAMIC ASTIGMATISM
ON SELECTED SOURCE
RED
GREEN
BLUE
ON GENLOCKED PATTERN
RED
GREEN
BLUE
FOCUSING ON CURRENT SOURCE
Select with or
then <ENTER>
<EXIT> to return
menu 1
DYNAMIC ASTIGMATISM
SEL : select area using arrow keys
ADJ : adjust axial astig. using or ,
diagonal astig. using or .
Toggle between SEL and ADJ with <EXIT>
Toggle between 4-POLE and 6-POLE with
<ENTER>
Use the <SHARPNESS> keys for the defo-
cusing of the image.
<ENTER> to continue
<EXIT> to return
menu 2
5. Press EXIT to toggle the cursor keys from selection keys to adjustment keys.
6. Adjust first the 4 pole correction. Adjust the spot shape in the axial or diagonal direction, using the cursor
keys. Adjust until the spot shape is circular. Use the cursor key or for the diagonal astigmatism adjust
ment and the cursor key or for the axial astigmatism adjustment.
7. Press ENTER to toggle from the 4 pole correction to the 6 pole correction or vice versa.
8. Adjust the spot shape again using the cursor keys.
9. Press EXIT to return to the area selection screen.
10. Repeat from step 3 as may times as necessary.