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PICTURE POSITION/SHAPE
HORIZONTAL PHASE
VERTICAL CENTRE
VERTICAL AMPLITUDE
•
Wait 5 minutes minimum after switching on the mains before adjustment.
•
Receive the Philips circle pattern.
•
Set brightness and contrast to maximum.
•
The set should face North or South.
•
AC input should be 230V ± 5V 50Hz.
•
Adjust software control (using PC / HAND SET)
•
Adjust control so that the centre of the picture is as in the diagram below.
Note:
The picture should be exaggerated as to create a barrel type picture at the vertical edges. The compensation to achieve this barrel
picture should be 3 steps passed the normal vertical edge position. This is to compensate for the pin cushion effect noticeable on
the OSDs.
TILT
PARABOLA
WIDTH
•
Allow 5 minutes warm up time before adjustment.
•
Receive Philips circle pattern.
•
Set brightness and contrast to nominal.
•
The set should face North or South.
•
AC input should be 230V ± 5V 50Hz.
•
Adjust software so that the vertical lines at the outside edges of the screen are adjusted to be roughly vertical.
•
Adjust the software so that the (approximately) vertical lines at the sides of the screen are adjusted as vertical as the
centre of the screen.
•
Adjust the software so that the castillations at the sides of the picture are not quite visible. Reduce the brightness and
contrast to make sure that the picture width has not reduced so that you can see beyond the castillations. You may have
to repeat stages 6 and 7 again.
NOTE. For all 16:9 receivers the picture should be first set up in 16:9 mode, then final adjustment for parabola and corner correction
only to be carried out in 4:3 mode.
8
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