Mitsubishi Electric 1786FD2 Service Manual page 45

MEA 1786FD2 CRT Monitor Service Guide
B. CRT Display
Part 1: Visual Ergonomic - Legibility
1.3 Linearity: * <= 1%, (See Fig.5 & Fig.6)
1.4 Orthogonality:
* H/V: <= 2%, Diagonal: <= 3%
1.5.1: Display Luminance: * >=100cd/m
1.5.2 Luminance Uniformity: * < 1.5:1
1.5.3 Luminance Contrast: * > 3:1 (test at 5% of corner and center)
1.6 Front Frame Reflectance:
* Diffuse reflectance: > 20%
* Gloss <= 30% gloss unit
1.7.1: Color Temperature Variations:
* £ G u'v': <+- 0.01 of White
o
* 9300 K: 8500-10250
o
* 7500 K: 6980-8100
o
* 6500 K: 6100-6950
o
* 5000 K: 4700-5350
* and actual measured Pre-set of Lower CCT should not exceed Higher CCT
CCT (oK)
9300
7500
6500
5000
5600
1.7.2: Color Uniformity and Characteristics:
* £ G u'v': <= 0.01 (between any two point of display area (White Color))
Part 2: External Alternate Magnetic Fields:
2.1: External Alternating Magnetic Fields: * < 0.1 mm (500 mm Viewing Distance; 80Hz, 200nT.)
2
(80% Loading)
o
K
o
K
o
K
o
K
Reference White Color Spec. in TCO'99
x,y
0.283, 0.297
0.299, 0.315
0.313, 0.329
0.346, 0.359
Engineering Specification
u'v'
0.189, 0.446
0.194, 0.459
0.198, 0.469
0.209, 0.488
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