If we line the x and y, then the Pb offset is the shift action and the Pr offset is the rotational action.
(3)
Connect power, YPbPr Video into projector.
(4)
Change Timing and pattern of pattern generator :
Timing : 480P(H:31.54 KHz,V:60.08 Hz)
pattern : black
(5)
Light on projector
(6)
Set user OSD values to default.
(7)
Enter factory mode.
(8)
Set Factory values to default.
(9)
Follow the PbPr offset adjustment flow chart:
Case
x1>x0 & y1>y0
Decrease Pb offset
until x<=x0 or
y<=y0
Case x<=x0:
The value note (x2,y2).
Dy = y2 - y0.
Decrease 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.
Decrease Pr offset the x value
will increase and y value will
decrease to meet the spec.
Increase Pr offset the x value will
decrease and y value will increase
to meet the spec.
Decrease 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.
Case y<=y0:
The value note (x2,y2).
Dx = x2 - x0.
Case
x1<x0 & y1<y0
Increase Pb offset
until x>=x0 or
y>=y0
Case x>=x0:
The value note (x2,y2).
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.
Increase Pr offset the x value will
decrease and y value will increase
to meet the spec.
Decrease Pr offset the x value
will increase and y value will
decrease to meet the spec.
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.
Case y>=y0:
The value note (x2,y2).
Dx = x0 - x2.
Case
x1>x0 & y1<y0
Increase Pr offset until
x<=x0 or y>=y0
A
B
C
D
Case x<=x0:
Case y>=y0:
B
C
Case
x1<x0 & y1>y0
Decrease Pr offset
until x>=x0 or y<=y0
Case x>=x0:
Case y>=y0:
D
A
Use Lux meter to
read the coordinate of
black and the value
note (x1,y1).
72
Summary of Contents for PB8250 - XGA DLP Projector
Page 2: ...Chapter 1 Engineering Specifications 1...
Page 3: ...2...
Page 4: ...3...
Page 5: ...4...
Page 6: ...5...
Page 12: ...11...
Page 13: ...12...
Page 14: ...13...
Page 15: ...14...
Page 20: ...19...
Page 21: ...Controls and Functions 20...
Page 22: ...Remote Control Description 21...
Page 24: ...Installing or Replacing the Batteries 23...
Page 29: ...28...
Page 30: ...29...
Page 33: ...Source Selection Auto Adjustment 32...
Page 39: ...38...
Page 40: ...39...
Page 41: ...40...
Page 42: ...41...
Page 43: ...42...
Page 44: ...43...
Page 45: ...44...
Page 46: ...45...
Page 47: ...46...
Page 48: ...Packing Description 47...
Page 49: ...48...
Page 50: ...49...
Page 51: ...50...
Page 52: ...51...
Page 53: ...Appearance Description 52...
Page 54: ...53...
Page 55: ...54...
Page 59: ...58...
Page 60: ...59...
Page 61: ...Shutdown 60...
Page 63: ...62...
Page 74: ...Chapter 6 Trouble Shooting Common Problems Solutions 73...
Page 75: ...74...
Page 76: ...75...
Page 77: ...76...
Page 78: ...77...
Page 79: ...78...
Page 80: ...79...
Page 81: ...80...
Page 82: ...81...
Page 83: ...82...
Page 84: ...83 Chapter 7 Schematics drawing...
Page 85: ...84...
Page 86: ...85...
Page 87: ...86...
Page 88: ...87...
Page 89: ...88...