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9-2
Installation Mode
5975967 BARCOGRAPHICS 9200 221297
Select with or
then <ENTER>
<EXIT> to return.
Select with or
then <ENTER>
<EXIT> to return.
Select with or
then <ENTER>
<EXIT> to return.
Convergence
Highlight "Convergence" by pushing the control disc up or down and
press ENTER to display the convergence selection menu.
Every LCD panel has 6 adjustment screws. By turning these screws
you change the relative position of the panels and converge the
image.
Always start with the adjustment of the green panel. When the green
image is correctly focused, it will later on be used as the reference
image to converge the red and blue image.
Next alignments have to be done :
You have to adjust the green panel until the indicated lines on the
screen are focused (sharp lines). Continue with the red panel and
adjust until the red lines coincide with the green lines. Than continue
with the blue panel until the blue lines coincide with the green lines.
Follow the next procedure to adjust the LCD panels.
* Open the top cover as described in Change password in chapter
Service Mode.
The three mounting parts for the LCD's (two are shown on the drawing
below) are located on the black metal cover. The screws are indicated
from 1 to 6 for each color.
Select with or
then <ENTER>
<EXIT> to return.
INSTALLATION
INPUT SLOTS
CONVERGENCE
CONFIGURATION
OSD COLOR
INTERNAL PATTERNS
CONVERGENCE
GREEN
BLUE ON GREEN
RED ON GREEN
HATCH
Select with or
then <ENTER>
<EXIT> to return.
To adjust the convergence, there are test patterns provided in the
convergence menu.
Use the control disc to hightlight Convergence and press ENTER to
display the Convergence menu.
Start with the Green test pattern and continue with the Red on green
and finish with the Blue on green.
Use the control disc to select Green and press ENTER to display the
green pattern.
Select with or
then <ENTER>
<EXIT> to return.
4
1
6
5
3
2
The pattern shows lines of one pixel.
Near six lines on the displayed pattern, a screw is drawn with a
number next to it (e.g. if displayed in green = corresponding with the
screws and numbers on the green LCD panel).
When turning a screw in the direction marked by the arrow above the
displayed screw on the screen, the line on the screen moves in the
direction of the straight arrow.
Green focusing
a. Adjust the projection lens until optimal focus for the lines 5 and 6
is obtained (hint : use the focusing marker lines next to the indicated
points)
b. Turn screw 4 for optimal focus of the corresponding green line 4 on
the screen.
c. Turn screw 5 for optimal focus of the corresponding green line 5 on
the screen.
d. Turn screw 6 for optimal focus of the corresponding green line 6 on
the screen.
CONVERGENCE
GREEN
BLUE ON GREEN
RED ON GREEN
HATCH
Note : the space between the LCD panel and the field lens has to be
4 to 5 mm. Otherwise when projecting a black image, a discoloring
will be visible. (To project a black image, select the internal pattern
'purity' and put all settings to '0')