LG 65LW6500-CA (CHASSIS:LC12C) Service Manual ▷ View online
LGE Display Division
LG 전자
LC12C Product Specification
10.2 Chroma (PSM: Vivid, Color Temperature: Cool
)
– except “RGB PC Mode PSM: Standard, Color Temperature: Medium”
** The W/B Tolerance is ±0.002 for Adjustment, but for DQA ±0.015
(
W/B Variation Design(R&D) Spec : ±0.002, DQA Spec ±0.015)
No
Item
Min
Typ
Max
Unit
Remark
1. Cool
White Balance, X axis
White Balance, Y axis
White Balance, Y axis
0.267
0.271
0.271
0.269
0.273
0.273
0.271
0.275
0.275
DQA : ±0.015
DQA : ±0.015
DQA : ±0.015
2. Medium
White Balance, X axis
White Balance, Y axis
White Balance, Y axis
0.283
0.291
0.291
0.285
0.293
0.293
0.287
0.295
0.295
DQA : ±0.015
DQA : ±0.015
DQA : ±0.015
3. Warm
White Balance, X axis
White Balance, Y axis
White Balance, Y axis
0.311
0.327
0.327
0.313
0.329
0.329
0.315
0.331
0.331
DQA : ±0.015
DQA : ±0.015
DQA : ±0.015
<Test Condition>
85% Full white pattern
Cool/Medium : Backlight 100
85% Full white pattern
Cool/Medium : Backlight 100
Warm : Backlight 30
Color Space : After 90min heat run, test the Color Space Spec
Luminance : After 90min heat run, test the Luminance Spec
Color Temperature measure specification
1) In non-impressed condition, measure White Balance displayable as much as possible LCD module.
2) Measuring instrument: CA-210 or a sort of Color Analyzer.
3) Pattern Generator : VG-828 or a sort of digital pattern generator (216 Gray)
4) Measure condition
● Test pattern: 85% Full White pattern
● SET condition : Contrast & Brightness Level default
● Environment condition : Dark room in the non outside light
● Video menu option condition
LGE Display Division
LG 전자
LC12C Product Specification
ITEM
Signal
Picture Mode
Dynamic Contrast
Dynamic
Color
Clear
white
RF PAL
Vivid Off Off
Off
AV PAL
Vivid Off Off
Off
Component 720P
Vivid
Off
Off
Off
RGB 1024x768 Vivid
NA
NA
Off
HDMI DTV
720P(16~235) Vivid
Off
Off Off
Max Luminance measure specification
1) In non-impressed condition, measure peak brightness displayable as much as possible LCD module.
2) Measuring instrument: CA-210 or a sort of Color Analyzer.
3) Pattern Generator : VG-828 or a sort of digital pattern generator (displayable Full White & 1/25 White Window pattern)
4) Measure condition
● Test pattern: in center, 1/5(H) * 1/5(V) of Window Pattern (white pattern in non-impressed condition)
● SET condition : Contrast & Brightness Level 100%
● Environment condition : Dark room in the non outside light
● Video menu option condition
Signal
Picture Mode
Dynamic Contrast
Dynamic
Color
Clear
White
RF
PAL
Vivid
Off
Off
Off
AV
PAL
Vivid
Off
Off
Off
Component
1080p
Vivid
Off
Off
Off
RGB
1920x1080
Vivid
NA
NA
Off
HDMI
DTV 1080P
Vivid
Off
Off
Off
LGE Display Division
LG 전자
LC12C Product Specification
Brightness / Contrast tracking measure specification
1) In non-impressed condition, measure peak brightness displayable as much as possible LCD module.
2) Measuring instrument: CA-210 or a sort of Color Analyzer.
3) Pattern Generator : VG-828 or a sort of digital pattern generator (displayable Full White & 1/25 White Window pattern)
4) Measure condition
● Test pattern: in center, 1/5(H) * 1/5(V) of Window Pattern (white pattern in non-impressed condition)
● Environment condition : Dark room in the non outside light
● Video menu option condition
5) Measurement
● Do heat-run LCD module at 30minutes in normal temperature (25℃) by using full white pattern of 100% signal level(255 gray level).
● Impress test pattern signal in 1/5(H) * 1/5(V) White Window of
100%(255Gray Level)
● Brightness tracking : Change brightness value in video menu. Check the luminance and chromaticity every 10 point while decrease brightness
value 100 to 0.
● Contrast tracking : Change contrast value in video menu. Check the luminance and chromaticity every 10 point while decrease contrast value 100 to 0.
● Measure the same condition in video signal /RGB signal.
Signal
Picture Mode
Dynamic Contrast
Dynamic Color
RF PAL Vivid
Off
Off
AV PAL Vivid
Off
Off
Component
1080p Vivid
Off
Off
RGB 1920x1080 Vivid
NA
NA
HDMI DTV
1080p Vivid
Off
Off
LGE Display Division
LG 전자
LC12C Product Specification
Average Brightness measure specification
1)
Impress 100%(255Gray Level) full white pattern at the same peak brightness measurement.
2)
Measure average brightness in 5 points.
Contrast ratio measure specification
1) Test display signal : 100%(255Gray)Full White Window signal & all Black Raster signal(0Gray)
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 100%(255Gray)Full 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 central
Calculate the following numerical formula
Contrast ratio = Lw / Lb
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