42LF7300 - LG TV Service Manual (repair manual). Page 8

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              - 8 -                                                         
6. Chroma & Brightness
6.1 32LF7300 
LCD 
Module (LC320WUD)
No
Item
Min
Typ
Max
Unit
Remark
1
Luminance, white
Luminance
(white)
400
500
-
cd/m²
PSM : Vivid, CSM : Cool, 
White(100 IRE)
Dynamic contrast : off
Dynamic color L off
Variation
1.3
2
View angle (R/L, U/D)
178/178
-
degree
3
Contrast ratio
900
1300
-
4
Color Coordinate
White
X
Typ.
-0.03
0.279
Typ.
+0.03
PSM : Vivid, CSM : Cool, 
White(80 IRE)
Dynamic contrast : off
Dynamic color L off
Y
0.292
Red
X
0.638
Y
0.334
Green
X
0.291
Y
0.607
Blue
X
0.145
Y
0.062
1) Standard Test Condition (The unit has been ‘ON’)
2) Stable for approximately 30 minutes in a dark environment at 25±2_
3) The values specified are at approximate distance 50Cm from the LCD surface
4) Ta= 25±2°C, V
LCD
=12.0V, f
V
=60Hz, D
clk
=74.25MHz VBR_A=1.65V, ExtV
BR_B
=100%
6.2 42LF7300 
LCD 
Module (LC420WUF)
No
Item
Min
Typ
Max
Unit
Remark
1
Luminance, white
Luminance
(white)
400
500
-
cd/m²
PSM : Vivid, CSM : Cool, 
White(100 IRE)
Dynamic contrast : off
Dynamic color L off
Variation
1.3
2
View angle (R/L, U/D)
178/178
-
degree
3
Contrast ratio
1000
1400
-
4
Color Coordinate
White
X
Typ.
-0.03
0.279
Typ.
+0.03
PSM : Vivid, CSM : Cool, 
White(80 IRE)
Dynamic contrast : off
Dynamic color L off
Y
0.292
Red
X
0.638
Y
0.334
Green
X
0.290
Y
0.606
Blue
X
0.144
Y
0.064
1) Standard Test Condition (The unit has been ‘ON’)
2) Stable for approximately 30 minutes in a dark environment at 25±2_
3) The values specified are at approximate distance 50Cm from the LCD surface
4) Ta= 25±2°C, V
LCD
=12.0V, f
V
=120Hz, D
clk
=74.25MHz, IBL = 135mArms
Display
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