User guide

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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 colours. 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anticlockwise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supplied pattern or a self-
created version,
• 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 anticlockwise until you observe that the
red and green colours are aligned.
2 Turn the SKEW GB dial clockwise or anticlockwise until you observe that the
green and blue colours 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 anticlockwise until you observe
that the Red and Green colours are aligned, at which point all of the colours
will be aligned.