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Basic concept
Adjustment procedure :
Start up the adjustment mode by pressing ADJUST (see also chapter 'Start up of the
adjustment mode')
Highlight Random Access with the control disk and press ENTER to start up the
Random Access Adjustment mode
(see also chapter Random Access
Adjustment mode). The Random
Access Adjustment Mode main
menu will be displayed.
When the Contrast Modulation op-
tion is installed, the projector auto-
matically detects this option and
displays the selection (activation)
line in the Random Access Adjust-
ment Mode main menu.
Highlight CONTR. MODULATION
with the control disk and press EN-
TER to select.
Note : An external generated white
image will be useful during the ad-
justment.
Note : be sure the horizontal phase
is correctly adjusted. The image
must be centered on the raster with
the horizontal phase adjustment,
otherwise it is not possible to adjust
the contrast modulation correctly.
D-2
APPENDIX D : CONTRAST MODULATION
WITHOUT CONTRAST MODULATION
horizontal light output
1 00 %
5 0 %
I m a ge
5 0 %
horizontal light ouptut
1 00 %
green
5 0 %
r e d
blue
Image
5 0 %
ENTER selects the Contrast Modulation
menu.
EXIT returns to the Path Selection menu.
ADJUST returns to the Operational mode.
R5975238 BARCOVISION 701 MULTIMEDIA 070497
WITH CONTRAST MODULATION
horizontal light output
C OR NE R
1 00 %
FA LL O FF
5 0 %
I m a ge
vertical
light output
1 00 %
horizontal light ouptut
1 00 %
7 5 %
C O L O R
5 0 %
SHIFT
green
r e d
bl ue
I m a ge
vertical
light output
1 00 %
R A N D O M A C C E S S
A D J U S T M E N T M O D E
P I C TU R E TU N I N G
G E O M E TR Y
C O N V E R G E N C E
C O L O R S E L E C T
C O L O R B A L A N C E
O R B I TI N G
C O N TR . MO D U L A TI O N
S O F T E D G E
Select with
or
< EN TER > t o a cc e pt
< EX IT> to ret urn
C O RN E R
FA LL O FF
vertical
5 0 %
1 0 0 %
light output
C O L O R
SHIFT
vertical
5 0 %
10 0%
light output
7 5 %
6 3 6 g
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