Read LG 42LF66 (CHASSIS:LD75A) Service Manual online
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5. Chroma & Brightness
5-1. FHD Module-47LF66
Item
Min
Typ
Max
Unit
Measurement Result
Remark
Viewing Angle
R/L
178
Viewing
R/L
178
<CR>10>
U/D
178
Angle<CR>10>
U/D
178
White average
47LF65
450
550
-
cd/m
2
- 100IRE Full White Pattern(255gray)
brightness
- Picture : Dynamic (Cool)
Brightness uniformity
1.3
0
1.3
cd/m
2
- 100IRE Full White Pattern(255gray)
- Picture : Dynamic (Cool)
Color
White
X
0.261
0.276
0.291
- 85IRE Full White Pattern (216 gray)
Coordinate
Y
0.268
0.283
0.298
- Picture : Dynamic (Cool)
Red
X
0.603
0.618
0.633
Y
0.318
0.333
0.348
Green
X
0.260
0.275
0.290
Y
0.568
0.583
0.598
Blue
X
0.132
0.147
0.162
Y
0.046
0.061
0.076
Color coordinate uniformity -0.03
Average
+0.03
- 85IRE Full White Pattern (216 gray)
- Picture : Dynamic (Cool)
Contrast Ratio CR with
- Full white(100IRE)
at dark room
PWM-Dimming
4000 : 1 5000 : 1
- Full black(0IRE) pattern
CR without
(600:1) (800:1)
- Picture : Dynamic (Cool)
PWM-Dimming
-Input:TV/DTV/AV1,2,3/Comp/HDMI1,2
-> CR with PWM-Dimming
RGB/HDMI-PC
-> CR without PWM-Dimming
Color
Medium
8300
9300
10300
- 85IRE Full White Pattern (216 gray)
Temperature
Warm
5500
6500
7500
- Picture : Dynamic (Cool)
Cool
10000
11000
12000
Color pull in
PAL
-500
+500
Hz
Range
NTSC
-500
+500
Hz
Color killer Sensitivity
-80
dBm
*** PWM-Dimming function works after 30 seconds. So, When you check the CR, you must wait 30 minutes for check the Full Black
level and then 10 minutes for check the Full White level.***
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