Monitor Settings
ELSA ECOMO 21S99
13
The Picture Has Blue or Red Shadows
Convergence
The three electron beams are not in registration and are not
hitting the phosphor dots on the viewing screen accurately,
resulting in a fuzzy picture on the screen and the appearance
of red or blue shadows around objects. This is called conver-
gence error. The three control bars on the OSD page will help
to adjust the convergence. The convergence value is correct
when the color bars are “sharp”.
The
ECOMO 21S99
makes it possible to correct the conver-
gence very accurately:
쮿
Vertical convergence
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Horizontal convergence
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Upper screen convergence
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Lower screen convergence
Use the selection keys to access the ‘PIC-
TURE’ menu page. Move the cursor onto the
desired option using the
쒅
/
쒆
buttons. Use
the
쏟
/
쏡
buttons to adjust the convergence
correction.
The Screen Colors Look Blotchy
Color Purity
Colors will loose uniformity if the three elec-
tron beams are being deflected. This effect
may be the result of interference from a mag-
netic field or if the monitor has been moved
while switched on. The
ECOMO 21S99
allows the grade of color purity to be
adjusted in all four corners of the screen.
Use the selection buttons to access the ‘PICTURE’ menu page.
햲
First move the cursor onto the first
‘COLOR PURITY’ symbol using the
쒅
/
쒆
buttons. The four icons for the
corner regions affected appear in the
right-hand detail. Select the icon you
want using the
쏟
/
쏡
buttons. The selec-
tion is highlighted by a small green
square.
The bars should coincide
exactly.
SCREEN
TOP
BOT
H convergence
(horizontal)
V convergence
(vertical)
H CONVER TOP
(top horizontal conver-
gence)
V CONVER BOTTOM
(bottom vertical con-
Color inbalances in
the monitor picture
SCREEN
ADJ
First select the corner
region that needs cor-
rection...
and then adjust the
color purity for this
region.