Read LG 47LH30 (CHASSIS:LA92A) Service Manual online
5) Measurement
• Do heat-run LCD module at 5minutes in normal temperature (25°C) by using full white pattern of 15% signal level(38 gray level).
• Impress test pattern signal in 1/5(H)*1/5(V) White Window of 100% (255Gray Level)
• measure 3 times brightness of central white window, and mark peak brightness in max brightness degree
• measure the same condition in video signal /RGB signal.
• Impress test pattern signal in 1/5(H)*1/5(V) White Window of 100% (255Gray Level)
• measure 3 times brightness of central white window, and mark peak brightness in max brightness degree
• measure the same condition in video signal /RGB signal.
6.1.3 Luminance uniformity measure specification
1) Impress 100 % (255Gray Level) full white pattern at the same peak brightness measurement.
2) Measure average brightness in 9 points.
2) Measure average brightness in 9 points.
6.1.4 Contrast ratio measure specification
1) Test display signal : 30*30 dots White Window signal & all Black Raster signal
2) Dark room measure condition: Using touch type Color analyzer CA-210 Dark room in the non outside light
3) Bright room measure condition: In bright room of 150Lx illumination in the panel surface, locate a source of light on the above
2) Dark room measure condition: Using touch type Color analyzer CA-210 Dark room in the non outside light
3) Bright room measure condition: In bright room of 150Lx illumination in the panel surface, locate a source of light on the above
45°of the panel surface.
4) Measure method
• In standard test condition, Impress 30*30 dots White Window Pattern signal .
Measure center peak brightness degree Lw of white window
• Impress black Raster signal as contrast ratio measurement signal.
Measure black brightness degree Lb of PDP central
Calculate the following numerical formula.
Contrast ratio = Lw / Lb
Calculate the following numerical formula.
Contrast ratio = Lw / Lb
* If it does not use Prior measurement, use generally simple test measurement. The Correct measure specification is followed by
IEC61988-2/CD, JAPAN EIAJ-2710
- 9 -
LG Electronics. Inc. All right reserved.
C
2009
7. Component input (Y, C
B
/P
B
, C
R
/P
R
)
No
Specification
Remark
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel Clock(MHz)
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
74.176
HDTV
1080P
1
4
7
2
5
8
3 6 9
Signal
Picture Mode
Dynamic Contrast
Dynamic Color
Black Level
OPC
RF
NTSC-M
Vivid
High
High
Low
Off
AV NTSC-J Vivid
High
High
High
Off
Component 720P
Vivid
High
High
High
Off
RGB 1024x768
Vivid
NA
NA
NA
NA
HDMI DTV
720P
Vivid
High
High
Low
Off
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