BenQ PE8700 Service Manual page 35

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(c). Saturation Level: (Scalar)
1. Change Timing and pattern of pattern generator :
Timing : 480P(H:31.54 KHz,V:60.08 Hz)
pattern : 100% blue
2. Adjust saturation and use lux meter to measure to let the light output just max.
3.
Select "Save Setting" at "Factory OSD>Factory>".
Case
x1>x0 & y1>y0
Decrease Pb offset
until x<=x0 or
y<=y0
A
Case x<=x0:
The value note (x2,y2).
The value note (x2,y2).
Dy = y2 - y0.
Decrease Pb offset until the y
Decrease Pb offset until the x
value <= y2 - 1/2Dy . Now, the
value <= x2 - 1/2Dx . Now, the
reading of the Lux meter =
reading of the Lux meter =
(x3,y3) and x3 will < x0, y3 will
(x3,y3) and x3 will > x0, y3 will
> y0.
Decrease Pr offset the x value
Increase Pr offset the x value will
will increase and y value will
decrease and y value will increase
decrease to meet the spec.
to meet the spec.
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B
C
Case y<=y0:
Case x>=x0:
The value note (x2,y2).
Dx = x2 - x0.
Dy = y0 - y2.
Increase Pb offset until the y
value >= y2 + 1/2Dy . Now, the
reading of the Lux meter =
(x3,y3) and x3 will > x0, y3 will
< y0.
< y0.
Increase Pr offset the x value will
decrease and y value will increase
to meet the spec.
Use Lux meter to
read the coordinate of
black and the value
note (x1,y1).
Case
x1<x0 & y1<y0
Increase Pb offset
until x>=x0 or
y>=y0
D
Case y>=y0:
The value note (x2,y2).
Dx = x0 - x2.
Increase Pb offset until the x
value >= x2 + 1/2Dx . Now, the
reading of the Lux meter =
(x3,y3) and x3 will < x0, y3 will
> y0.
Decrease Pr offset the x value
will increase and y value will
decrease to meet the spec.
Case
x1>x0 & y1<y0
Increase Pr offset until
x<=x0 or y>=y0
until x>=x0 or y<=y0
Case x<=x0:
Case y>=y0:
Case x>=x0:
C
B
A
Case
x1<x0 & y1>y0
Decrease Pr offset
Case y>=y0:
D
34

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