ViewSonic P90F Service Manual page 28

Item
(b)Parallelogram
(Every Mode)
(c)Pincushion Adj.
(Every Mode)
(d)Trapezium Adj.
(Every Mode)
(e)Pin−corner Adj.
(Mode 11)
(9).Contrast
(10)Color
Temperature.
Adjustment
ViewSonic Corporation
Adjustment Description
*Parallelogram Adj.:
Select Parallelogram Icon
Press UP OR DOWN Key.
to correct the Orthogonality to the best.
*Pincushion Adj.:
Select Pincushion Icon
Press UP OR DOWN Key,
to straighten Side Pincushion.
*Trapezium Adj.:
Select Keystone Icon
Press UP OR DOWN Key,
to make picture geometric distortion the best.
*Pin−corner Adjustment:
Select Pin-corner Icon
Press UP OR DOWN Key,
to make picture geometric distortion the best.
(Note this Adj. Item is used to correct the four
corners in a small quantity)
*Standard pre-set setting is Contrast adjust to
the maximum.
24
Confidential – Do Not Copy
SPEC.
Pin distortion< 1.0mm
Left / right <1.5mm
< 0.5mm in 50 mm LINE
NC
P90f-1