Read LG 55LH90 (CHASSIS:LA92C) Service Manual online
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5. Chrominance & Luminance Specification
No
Item
Min
Typ
Max
Unit
Remark
1.
White peak brightness
(Center 1-point / Full White Pattern)
(Center 1-point / Full White Pattern)
400
500
cd/m 55LH90-UB
/
55LH90QD-NA
2.
White average brightness
cd/m
N/A
3.
Brightness uniformity
77
%
Full white
4.
0.645
5.
RED
X
X
X
X
Y
0.325
0.640
0.056
6.
0.286
7.
GREEN
Y
8.
0.148
9.
BLUE
Y
10.
0.279
11.
Color
coordinate
coordinate
WHITE
Y
Typ.
-0.03
-0.03
0.292
Typ.
+0.03
+0.03
Color Coordinate 측정
Mode : PC
PSM : 편안한 영상
Mode : PC
PSM : 편안한 영상
CSM : 표준
12. Color coordinate uniformity
N/A
13.
Contrast ratio
Dynamic CR
Dynamic CR
900:1
1,800,000:1
1,800,000:1
1300:1
2,000,000:1
2,000,000:1
Local Dimming ON
(RGB/HDMI-PC
(RGB/HDMI-PC
9P7¨
)
x 0.261
0.276
0.291
0.283
0.298
0.285
0.398
0.293
0.308
0.313
0.328
0.329
0.344
Cool
y 0.268
x 0.270
x 0.270
Medium
y 0.278
x 0.298
x 0.298
14.
Color
Temperature
Temperature
Warm
y 0.314
<Test Condition>
85% Full white pattern 제외
85% Full white pattern 제외
15. Color Distortion, DG
10.0
%
16. Color Distortion, DP
10.0
deg
17. Color S/N, AM/FM
43.0
dB
18. Color Killer Sensitivity
-80
dBm
6. Component Video Input (Y, PB, PR)
No
Resolution
H-freq(kHz)
V-freq.(kHz)
Pixel clock
Proposed
1.
720*480
15.73
60
13.5135
SDTV ,DVD 480I
2.
720*480
15.73
59.94
13.5
SDTV ,DVD 480I
3. 720*480
31.50
60
27.027
SDTV
480P
4. 720*480
31.47
59.94
27.0
SDTV
480P
5. 1280*720
45.00
60.00
74.25
HDTV
720P
6. 1280*720
44.96
59.94
74.176
HDTV
720P
7. 1920*1080
33.75
60.00
74.25
HDTV
1080I
8. 1920*1080
33.72
59.94
74.176
HDTV
1080I
9. 1920*1080
67.500
60
148.50
HDTV
1080P
10. 1920*1080
67.432
59.939
148.352
HDTV
1080P
11. 1920*1080
27.000
24.000
74.25
HDTV
1080P
12. 1920*1080
26.97
23.976
74.176
HDTV
1080P
13. 1920*1080
33.75
30.000
74.25
HDTV
1080P
14. 1920*1080
33.71
29.97
74.176
HDTV
1080P
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