BenQ PB8220 - XGA DLP Projector, Service Manual

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Chapter 1 Engineering Specification
1.0 Optical Performance Tested under 60” (diagonal) image size unless other
specified. Measurement Details refer to Appendix A.
1.1 ANSI Brightness 1600 Lumens (Minimum)
1.2 Brightness Uniformity 54% (Minimum)
1.3 Contrast Ratio
1.3.1 ANSI Contrast 130:1 (Minimum)
1.3.2 FOFO Contrast
800:1 (Minimum)
1.4 Light Leakage
1.4.1 Light Leakage in Active Area <2 lux within 60” (diagonal) image size
1.4.2 Light Leakage out of Active
Area
<2 lux between of 60” (diagonal) image size and 80”
(diagonal) area
1.5 Color X y
1.5.1 White .305±.040 .325±.040
1.5.4 Red .650±.040 .335±.040
1.5.5 Green .345±.040 .515±.040
1.5.6 Blue .137±.040 .070±.040
1.6 Color Uniformity X y
1.6.1 White < .04 < .04
1.6.2 Red < .04 < .04
1.6.3 Green < .04 < .04
1.6.4 Blue < .04 < .04
2.0 Image Quality
2.1 Throw Ratio 60” ±5% Diagonal at 2m
2.2 Zoom Ratio 1.2:1
2.3 Distortion
2.3.1 Keystone Distortion <1.0%
2.3.2 Vertical TV Distortion <1.0%
2.4 Projection Offset 120% ±5%
2.5 Focus Range 1.5~8m
2.6 Focus
2m
Test Pattern: X pattern
Observation: 2m from observer to screen
Criteria: letter visible all over screen
(Clear level specified by limit sample)
Focus condition: uniformly focused by observer
1.5m and 8m
Criteria: letter visible at center of screen
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