BenQ MP611 Product Service Manual page 9

2.1 Throw Ratio
2.2 Zoom Ratio (tolerance
applied)
2.3 Distortion
2.3.1 Keystone Distortion
2.3.2 Vertical TV Distortion
2.3.3 Screen distorsion
2.4 Projection Offset
2.5 Focus Range
2.5.1 Visible Range
2.5.2 Clearly Focus Range
2.6 Focus
2.6.1 区 Pattern
2.6.2 Defocus and Flare
2.6.3 Focus unbalance
2.7 Lateral Color
2.8 Image Quality
2.8.1 DMD Image Quality
2.8.2 Image Imperfection
2.8.3 Image Shadow or Blur
54"±5% Diagonal at 2m, Wide
> 1.10 : 1
<1.0%
<1.0%
l W2-W1 l <6mm , l H2 –H1 l <6 mm
120% ±5%
1~8 m
1.5~6 m(Spec. defined as item 2.6)
(1)If pattern can be uniformly focused, pass!
(2)If not, check 2.6.2
Defocus: R<=3.0; G<=2.5; B<=2.5 pixel
Flare: R<=4.0; G<=3.5; B<=3.5 pixel
Slight flare is not counted as flare.
Adjust focus from near to far until one corner clear, difference less
than 70 cm
R-G
G-B
R-B
See Appendix D
See Appendix D Blemish
Procedure:
1. 53" (Diagonal at 2m, Wide) image size.
2. Default preset mode " Dynamic"
3. Full white pattern to check the image.
Let the projector on the desk (don't move it up/down or left/
right) and just inspect the pattern. It is OK If the shadow or blur
can not be observed obviously.
4. If there is blur obviously, Measure brightness of point A and
brightness of point B. A/B must larger than 80%.detail
description see Appendix A21
9
Center of
49"diagonal area
<2/3
<2/3
<1
All other area
<1
<1
<1