LG 32LA6500 (CHASSIS:LB33B) Service Manual ▷ View online
LGE TV Division LG()
Establish : 12.7.6. 36
Reform : 12.10.15 114
Reform : 12.10.15 114
LG 전자
LC33B Product Specification
HDMI
1080P
Low
5) Measurement
● Do heat-run LCD module at 60 minutes and over in normal temperature(25℃) by using full white pattern.
● Do heat-run LCD module at 60 minutes and over in normal temperature(25℃) by using full white pattern.
● Impress test pattern signal, and measure 3 times brightness of central of screen.
● Measure the same condition in video signal /RGB signal.
▣
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
<Test Condition>
80% Full white pattern
Cool/Medium : Backlight 100
80% Full white pattern
Cool/Medium : Backlight 100
Warm : Backlight 30
** In the case of LED Model, Measure the color
temperature at the warm mode after heat run T.V
more than 60 minutes at Cinema mode.
temperature at the warm mode after heat run T.V
more than 60 minutes at Cinema mode.
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
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.
LGE TV Division LG()
Establish : 12.7.6. 37
Reform : 12.10.15 114
Reform : 12.10.15 114
LG 전자
LC33B Product Specification
3) Pattern Generator : VG-828 or a sort of digital pattern generator (204 Gray)
4) Test pattern : 80IRE(204Level) pattern of Full window
5) Video menu option condition (same all input as below)
- for measuring Medium / Cool
Picture
Mode
Picture
Mode
Back
light
light
Color Temp.
Dynamic
Contrast
Contrast
Dynamic
Color
Color
Motion
EyeCare
EyeCare
Cool
Medium
Standard
100
C50
0
Off
Off
Off
- for Measuring Warm : Picture mode Expert 2 Default.
Picture
Mode
Mode
Back
light
light
Color Temp.
Dynamic
Contrast
Contrast
Dynamic
Color
Color
Motion
EyeCare
EyeCare
Expert 2
50
Warm 2
Off
Off
Off
6) Measurement
● Do heat-run LCD module at 60 minutes and over in normal temperature(25℃) by using full white pattern.
● For Measuring Cool and Medium, set the video condition and white balance to C0,
Impress test pattern signal, and measure 3 times color coordinates of central of screen.
● Measure the Medium as same condition in video signal /RGB signal.
● For Measuring Warm, set the picture mode to Expert2/Cinema2(for Japan).
● Do heat-run LCD module at 60 minutes and over again.
Impress test pattern signal, and measure 3 times color coordinates of central of screen.
LGE TV Division LG()
Establish : 12.7.6. 38
Reform : 12.10.15 114
Reform : 12.10.15 114
LG 전자
LC33B Product Specification
▣
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
4) Measure condition
● Test pattern: 100IRE(255Level) pattern of Full window
● SET condition : Contrast & Brightness Level 100%
● Environment condition : Dark room in the non outside light
● Video menu option condition
Picture
Mode
Back
light
Color
Temp.
Dynamic
Contrast
Dynamic
Colour
Motion
EyeCare
LED Local
Dimming
Standard
100
C50
Off
Off
Off
Off
▣
DCR (Dynamic Contrast Ratio) measure specification
1) Measure condition
● Test pattern : 100IRE(255Level) and 0IRE (0Level) pattern of Full window
● Test pattern : 100IRE(255Level) and 0IRE (0Level) pattern of Full window
● Video menu option condition (same all input)
: Picture mode Vivid Default
2) Measurement
● Impress 100IRE(255Level) of Full window pattern signal, and measure center brightness degree Lw of white.
● Impress 100IRE(255Level) of Full window pattern signal, and measure center brightness degree Lw of white.
● Impress 0IRE(0Level) of Full window pattern, and measure center brightness degree Lb of black.
● Calculate the following numerical formula.
- Dynamic Contrast Ratio = Lw / Lb
▣
Contrast / Brightness Tracking measure specification
LGE TV Division LG()
Establish : 12.7.6. 39
Reform : 12.10.15 114
Reform : 12.10.15 114
LG 전자
LC33B Product Specification
1) Measure condition
● Test pattern : 100IRE(255Level) pattern of Full window
● Test pattern : 100IRE(255Level) pattern of Full window
● Video menu option condition : Shipment MODE. (In-Stop)
2) Measurement
● Brightness tracking : Change brightness value in video menu.
● Brightness tracking : Change brightness value in video menu.
Check the luminance every 10 point while decrease brightness value 100 to 0.
● Contrast tracking : Change contrast value in video menu.
● Contrast tracking : Change contrast value in video menu.
Check the luminance every 10 point while decrease contrast value 100 to 0.
▣
Static Contrast Ratio for Local Dimming
1) Measure condition
● Test pattern : 50 APL Window Pattern [Left – 100IRE (255Level) of 50% window / Right – 0IRE(0Level) of 50% window]
● Test pattern : 50 APL Window Pattern [Left – 100IRE (255Level) of 50% window / Right – 0IRE(0Level) of 50% window]
● Video menu option condition
- Picture mode Vivid Default , HDMI
Measure Point
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