19
®
To zero the skew adjustment dials
When supplied, the two skew dials are set in
their neutral positions. i.e. no delay to either
of its colors. However, if the module has been
previously used and adjusted then you may
need to relocate the zero point. There are no
setting markers around the two skew dials and
the dial itself does not have a pointer.
1 Insert a small screwdriver into the skew
dial and twist it all the way anticlockwise.
Note the position of the dial when it
reaches its end point.
2 Rotate the screwdriver fully clockwise and
again note the endpoint position of the
dial.
3 Now rotate the screw driver counterclockwise until the dial reaches the
position that lies midway between the two end points. This is the neutral
position.
4 Repeat this procedure for the other skew dial, if necessary.
0
(no compensation)
Max
Max
To adjust the skew compensation
Your chances of achieving a successful skew compensation adjustment will be
improved if you do the following:
• Ensure that you have a clear view of one or both display screens,
• Display a suitable RGB test pattern, either the
,
• Use a screwdriver of an appropriate size to adjust the dials,
• Begin with both skew dials in their neutral positions - if the module has
been previously used and skew adjusted for an alternative installation, zero
the dials as described in the section ‘To zero the skew adjustment dials’ left.
0
(no compensation)
Skew RG
Skew GB
0
(no compensation)
Delay
RED
Delay
GREEN
Delay
GREEN
Delay
BLUE
1 Turn the
SKEW RG
dial clockwise or counterclockwise until you observe that
the red and green colors are aligned.
2 Turn the
SKEW GB
dial clockwise or counterclockwise until you observe that
the green and blue colors are aligned.
3 Your actions in
step 2
may alter the Red/Green alignment. If so, go back to
the
SKEW RG
dial and turn it clockwise or counterclockwise until you observe
that the Red and Green colors are aligned, at which point all of the colors
will be aligned.
