LG 42LK450 (CHASSIS:LA01U) Service Manual ▷ View online
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5. Chrominance & Luminance
No.
Item
Min
Typ
Max
Unit
Remarks
1
Max Luminance
320
400
cd/m
2
32/37/42LK450-UB(AUO)
(Center 1-point / Full White Pattern)
360
500
37/42/47LK450-UB(LGD)
2
Luminance uniformity
3
Color coordinate
RED
X
Typ.
0.64
Typ.
32LK450-UB(AUO)
(Default)
Y
-0.03
0.33
+0.03
GREEN
X
0.29
Y
0.60
BLUE
X
0.15
Y
0.06
WHITE
X
0.28
Y
0.29
RED
X
Typ.
0.639
Typ.
37LK450-UB(LGD)
Y
-0.03
0.334
+0.03
GREEN
X
0.289
Y
0.606
BLUE
X
0.145
Y
0.065
WHITE
X
0.279
Y
0.292
RED
X
Typ.
0.640
Typ.
37LK450-UB(AUO)
Y
-0.03
0.330
+0.03
GREEN
X
0.281
Y
0.590
BLUE
X
0.144
Y
0.060
WHITE
X
0.280
Y
0.290
RED
X
Typ.
0.636
Typ.
42LK450-UB(LGD)
Y
-0.03
0.335
+0.03
GREEN
X
0.291
Y
0.603
BLUE
X
0.146
Y
0.061
WHITE
X
0.279
Y
0.292
RED
X
Typ.
0.640
Typ.
42LK450-UB(AUO)
Y
-0.03
0.330
+0.03
GREEN
X
0.281
Y
0.590
BLUE
X
0.144
Y
0.060
WHITE
X
0.280
Y
0.290
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RED
X
Typ.
0.639
Typ.
47LK450-UB(LGD)
Y
-0.03
0.334
+0.03
GREEN
X
0.290
Y
0.606
BLUE
X
0.146
Y
0.058
WHITE
X
0.279
Y
0.292
4
Contrast ratio
Module
3200
4000
32/37/42LK450(AUO)
1100
1450
42/47LK450-UB(LGD)
1100
1500
37LK450-UB
DCR
90,000:1
100,000:1
32/37/42/47LK450-UB(LGD)
30,000:1
40,000:1
32/37/42LK450-UB(AUO)
5
Color Temperature
Cool
0.254
0.269
0.284
13000K The W/B Tolerance is ±0.015
0.258 0.273
0.288
for picture quality by DQA
Medium
0.270
0.285
0.300
9300K
0.278
0.293
0.308
Warm
0.298
0.313
0.324
6500K
0.314
0.329
0.344
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6. Component Video Input (Y, C
B/
P
B
, C
R
/P
R
)
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
59.94
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
740176
HDTV 1080P
7. RGB Input (PC)
No Resolution
H-freq(kHz) V-freq.(kHz) Pixel
clock
Proposed
PC
DDC
1.
640*350
31.468
70.09
25.17
EGA
X
2.
720*400
31.469
70.08
28.32
DOS
O
3.
640*480
31.469
59.94
25.17
VESA(VGA)
O
4.
800*600
37.879
60.31
40.00
VESA(SVGA)
O
5.
1024*768
48.363
60.00
65.00
VESA(XGA)
O
6.
1280*768
47.776
59.870
79.5
CVT(WXGA)
X
7.
1360*768
47.712
60.015
85.50
VESA(WXGA)
X
8.
1280*1024
63.981
60.020
108.00
VESA(SXGA) O
9.
1920*1080
66.587 59.934 138.50
WUXGA
O
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8. HDMI input (PC/DTV)
No Resolution
H-freq(kHz) V-freq.(kHz) Pixel
clock
Proposed
PC
DDC
1.
640*350
31.468
70.09
25.17
EGA
X
2.
720*400
31.469
70.08
28.32
DOS
O
3.
640*480
31.469
59.94
25.17
VESA(VGA)
X
4.
800*600
37.879
60.31
40.00
VESA(SVGA)
O
5.
1024*768
48.363
60.00
65.00
VESA(XGA)
O
6.
1360*768
47.712
60.015
85.50
VESA (WXGA)
O
7.
1280*1024
63.981
60.020
108.00
VESA (SXGA)
O
8.
1920*1080 67.500
60.000
148.50
HDTV
1080P
O
DTV
1
720*480
31.47
60
27.027
SDTV 480P
O
2
720*480
31.47
59.94
27.00
SDTV 480P
O
3
1280*720
45.00
60.00
74.25
HDTV 720P
O
4
1280*720
44.96
59.94
74.176
HDTV 720P
O
5
1920*1080
33.75
60.00
74.25
HDTV 1080I
O
6
1920*1080
33.72
59.94
74.176
HDTV 1080I
O
7
1920*1080
67.500
60
148.50
HDTV 1080P
O
8
1920*1080
67.432
59.939
148.352
HDTV 1080P
O
9
1920*1080
27.000
24.000
74.25
HDTV 1080P
O
10
1920*1080
26.97
23.976
74.176
HDTV 1080P
O
11
1920*1080
33.75
30.000
74.25
HDTV 1080P
O
12
1920*1080
33.71
29.97
74.176
HDTV 1080P
O
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