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APPENDIX C : CONTRAST MODULATION
R5975059A BARCOVISION 708 200498
APPENDIX C : CONTRAST MODULATION
APPENDIX C : CONTRAST MODULATION
R5975059A BARCOVISION 708 200498
APPENDIX C : CONTRAST MODULATION
C-2
C-2
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 disc 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 disc and press
ENTER to select.
Note : An external generated white
image will be useful during the ad-
justment.
ENTER selects the Contrast Modulation
menu.
EXIT returns to the Path Selection menu.
ADJUST returns to the Operational mode.
Note : be sure the horizontal phase
is correctly adjusted. The image
must be centered on the raster
with the horizontal phase adjust-
ment, otherwise it is not possible to
adjust the contrast modulation cor-
rectly.
horizontal light output
100%
50%
vertical
light output
100%
50%
horizontal light ouptut
100%
50%
vertical
light output
100%
50%
red
green
blue
horizontal light output
100%
50%
vertical
light output
100%
50%
horizontal light ouptut
100%
50%
vertical
light output
100%
50%
75%
75%
red
green
blue
Image
Image
Image
Image
RANDOM ACCESS
ADJUSTMENT MODE
Select with ê or é
<ENTER> to accept
<EXIT> to return.
PICTURE TUNING
GEOMETRY
CONVERGENCE
COLOR SELECT
COLOR BALANCE
ORBITING
CONTR. MODULATION
SOFT EDGE
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 disc 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 disc and press
ENTER to select.
Note : An external generated white
image will be useful during the ad-
justment.
ENTER selects the Contrast Modulation
menu.
EXIT returns to the Path Selection menu.
ADJUST returns to the Operational mode.
Note : be sure the horizontal phase
is correctly adjusted. The image
must be centered on the raster
with the horizontal phase adjust-
ment, otherwise it is not possible to
adjust the contrast modulation cor-
rectly.
horizontal light output
100%
50%
vertical
light output
100%
50%
horizontal light ouptut
100%
50%
vertical
light output
100%
50%
red
green
blue
horizontal light output
100%
50%
vertical
light output
100%
50%
horizontal light ouptut
100%
50%
vertical
light output
100%
50%
75%
75%
red
green
blue
Image
Image
Image
Image
RANDOM ACCESS
ADJUSTMENT MODE
Select with ê or é
<ENTER> to accept
<EXIT> to return.
PICTURE TUNING
GEOMETRY
CONVERGENCE
COLOR SELECT
COLOR BALANCE
ORBITING
CONTR. MODULATION
SOFT EDGE