Read LG 42LF75 / 42LF76 (CHASSIS:LD75B) Service Manual online
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5. Optical Feature (42"LCD Module)
6. Special feature (Dynamic CR 10000:1)
1) Standard Test Condition
2) Surrounding Brightness Level : dark
3) Surrounding Temperature : 25±2°C
4) Warm-up Time : 30 Min
5) Input Signal : VESA XGA 60Hz
2) Surrounding Brightness Level : dark
3) Surrounding Temperature : 25±2°C
4) Warm-up Time : 30 Min
5) Input Signal : VESA XGA 60Hz
- Contrast, Brightness : Max.
- Clock/Clock Phase : accurate adjustment.
- Clock/Clock Phase : accurate adjustment.
No
Item
Min
Typ
Max
Inch
Remark
1
Dynamic CR
6000
8000
-
26
HDMI 720p Full Black Pattern
(Only HDMI mode )
7000
10000
-
32
Measure the black luminance after 30 sec.
7000
10000
-
37
System Control2’s 10% Dimming Value is ‘ON’.
7000
10000
-
42
No.
Item
Specification
Min.
Typ.
Max.
Remark
1.
Viewing Angle<CR>10>
R/L, U/D
178, 178
2.
Luminance
Luminance (cd/m2)
450
550
Variation
-
1.3
MAX / MIN
3.
Contrast Ratio
CR(42")
600
800
-Full white(100IRE)
-Full black(0IRE)
-Picture : Dynamic(Cool)
-Input:TV/DTV/AV1,2,3/Comp/HDMI1,2,3
-CR with PWM
-Dimming
CR
D
(With AI)(42")
4000
5000
RGB/HDMI-PC
-CR without PWM
- Dimming
4.
CIE Color Coordinates
White
Xw
Typ
0.276
Typ
-85IRE Full White Pattern (216 gray)
Yw
-0.03
0.283
+0.03
-Picture : Dynamic (Cool)
RED
Xr
0.618
Yr
0.3
Green
Xg
0.275
Yg
0.607
Blue
Xb
0.147
Yb
0.068
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