Sharpness Crispness; Light Quality; Image Stability - Mitsubishi Electric 1786FD2 Service Manual

MEA 1786FD2 CRT Monitor Service Guide
4.2SHARPNESS
CRISPNESS
Focus
Mis-convergence
Moire
Swing
Jitter

4.3 LIGHT QUALITY

White Balance
Purity W,R,G,B
Color Tracking
Max Brightness with ABL
Max Brightness no ABL
Brightness Uniformity
Raster light O/P
Contrast ratio

4.4 IMAGE STABILITY

H/V regulation
Flicker
Ringing
Reverse character(white
background and black characters)
Over 25Ft-L
Condition
Full white center
(Brit. cut-off & Cont. max.)
X max-X min & Y max-Y min
Brightness cut off
Full white pattern
3" Block
Full white pattern
Bright max./Cont. min.
Max/Min
Video at center
Engineering Specification
"e,w,m" at cut-off and
1024 x 768 resolution
Center < 0.15 mm
A < 0.25mm ,B< 0.35mm
no visible moire
not permitted
< 2mm
Spec
x = 0.283 + 0.010
y = 0.297 + 0.010
< 0.015
x, y (nominal) + 0.015
28Ft-L min.(Cut-off)
40Ft-L min.(Cut-off)
> 70% (center to corner)
0.5 ~ 1.5Ft-L
5:1
< 1 mm per side at cut-off
No flicker
No visible DY Hor. Video ringing
Remark
OK
N.A
√
The distance of watch is
30cm from eyes to screen
√
√
√
"
√
"
Remark
OK
N.A
√
@ UVGA8 1024x768
68.68KHz/85Hz
√
"
√
"
√
"
√
"
√
"
√
"
√
"
Remark
OK
N.A
√
√
√
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