Service manual

ViewSonic Corporation Confidential - Do Not Copy VA903b-1_ VA903m-1
10
IMAGE PERFORMANCE
Display Size
Horizontal Display Size, Primary Preset
FULL SCREEN
Vertical Display Size, Primary Preset
FULL SCREEN
Luminance
Lv (Max) –Condition:
Brightness / Contrast = 100%
CCT = USER COLOR (R/G/B=100%)
Lv (Max) = The Luminance requirement of section 4-6
“TFT LCD PANEL”
Lv (6500Kf) –Condition:
Brightness / Contrast = Default
Color Temperature = 6500K
Lv (6500K) / Lv (Max) x 100% ≧ 85%
Lv (sRGB) –Condition:
Brightness / Contrast = Default
CCT =sRGB
Lv (sRGB) / Lv (Max) x 100% ≧85%
Lv (9300K) –Condition:
Brightness / Contrast = Default
CCT = 9300K
Lv (9300K) / Lv (Max) x 100% > 70%
Lv (5400K) –Condition:
Brightness / Contrast = Default
CCT = 5400K
Lv (5400K) / Lv (Max) x 100% > 75%
Lv (Brightness) –Condition:
Contrast = 100%
Lv(Brightness=0%) / Lv(Brightness=100%) x 100% ≤ 55%
Lv (Contrast) –Condition:
Brightness = 100%
Lv(Contrast=0%) / Lv(Contrast=100%) x 100% ≤ 30%
Contrast Ratio
CR(Max) –Condition:
Contrast / Brightness = 100%
CCT = USER COLOR (R/G/B=100%)
Same as the Contrast Ratio in section 4-6
“TFT LCD PANEL”
CR(6500K) –Condition:
Contrast / Brightness = 100%
CCT = 6500K
CR(6500K) / CR(Max) ≧ 93%
Saturation
Contrast = Default
Brightness = Default
Test pattern = 64-gray
NO VISIBLE SATURATION
Contrast = 100%
Brightness = 100%
Test pattern = 64-gray
8~10 VISIBLE SATURATION