LG 42SL90QD-DA (CHASSIS:LT91L) Service Manual ▷ View online
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SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
4. Electrical specification
4.1. Module Specification
1. Application range
This specification is applied to the 42” LCD TV used LT91T
chassis.
chassis.
2. Requirement for Test
Each part is tested as below without special appointment.
1) Temperature : 25±5ºC (77±9ºF), CST : 40±5ºC
2) Relative Humidity : 65±10%
3) Power Voltage : Standard input voltage (100-240V@50/60Hz)
2) Relative Humidity : 65±10%
3) Power Voltage : Standard input voltage (100-240V@50/60Hz)
* Standard Voltage of each products is marked by models.
4) Specification and performance of each parts are followed
each drawing and specification by part number in
accordance with BOM.
accordance with BOM.
5) The receiver must be operated for about 5 minutes prior to
the adjustment.
3. Test method
1) Performance: LGE TV test method followed
2) Demanded other specification
2) Demanded other specification
- Safety: CE / ICE specification
EMI: CE / ICE
No
Item Specification
Remark
1
Screen Device
42” wide Color Display module
LCD
2
Aspect Ratio
16:9
3
LCD Module
42”TFT LCD FHD 240Hz
LGD
4
Operating Environment
Temp.: 0 ~ 50°C 240h
Humidity : Ta=40°C, 90%RH, 240h
5
Storage Environment
Temp.: -20 ~ 60°C 240h
6
Input Voltage
AC100-240V~, 50/60Hz
7
Power Consumption
Power on (Green)
LCD(Module) + Backlight(LED)
Typ : 161.2 W
8
Module Size
965.2 (H) x 558.2 (V) x 36.5 (D)
With inverter
9
Pixel Pitch
0.48450 (H) x 0.48450 (V)
10
Back Light
CCFL
11
Display Colors
1.06Billion (10 bit)
12
Coating
3H, Semi-glare
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4.2. MODEL General Specification
No Item
Specification
Remarks
1 Market
Taiwan
Digital DVB-T
UHF
14-69
2 Broadcasting
Analog
NTSC-M
3
Receiving
Analog
Upper Heterodyne
system
Digital COFDM,QAM
4
Video Input RCA (2EA)
NTSC
5
Component Input (2EA)
Y/Cb/Cr
Y/Pb/Pr
6 RGB
Input
RGB-PC
HDMI1-DTV/DVI
PC(HDMI version 1.3) / DTV format, Support HDCP
7
HDMI Input (4EA)
HDMI2-DTV
DTV format, Support HDCP
HDMI3-DTV
DTV format, Support HDCP
HDMI4-DTV
DTV format, Support HDCP
8
Audio Input (5EA)
RGB/DVI Audio, Component1/2, AV1/2
RGB/DVI Audio : Stereo Phone Jack
Others : RCA Jack
9
SDPIF out (1EA)
Optical Audio out
10
USB (1EA)
USB2.0
JPEG, MP3, DivX, and SVC (download)
5. Chroma& Brightness
5.1. Module optical specification
*** LGD module Uniformity Measurement Position***
P1
P2
P3
P4
P5
1W/4
2W/4
3W/4
1H/4
2H/4
3H/4
: Measurement position (5 point)
No.
Item
Min
Typ
Max
Remark
1.
Cool
White Balance,X axis
0.267
0.269
0.271
White Balance,Y axis
0.271
0.273
0.275
PSM: Vivid, CSM: Cool,
2.
Medium
White Balance,X axis
0.283
0.285
0.287
White (85IRE)
White Balance,Y axis
0.291
0.293
0.295
Dynamic contrast: off, Dynamic color: off
3.
Warm
White Balance,X axis
0.311
0.313
0.315
White Balance,Y axis
0.327
0.329
0.331
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1) Optical characteristics are determined after the unit has been ‘ON’ and stable in a dark environment at 25±2°C
2) Surface luminance is the luminance value at center 1-point across the LCD surface 50cm from the surface with all pixels
2) Surface luminance is the luminance value at center 1-point across the LCD surface 50cm from the surface with all pixels
displaying white.
No.
Item Specification
Min.
Typ.
Max.
Remark
1.
Viewing Angle<CR>10>
Right/Left/Up/Down
178
CR > 10
Luminance (cd/m
2
)
480
600
PSM: Vivid, CSM: Cool,
2.
Luminance
White (100IRE)
Variation -
1.3
3.
Contrast Ratio
CR
1000
1200
All white/ All black
White WX
0.279
WY Typ
0.292
Typ
RED
Xr
- 0.03
0.638
+0.03
PSM: Vivid, CSM: Cool
4.
CIE Color Coordinates
Yr
0.334
White (85IRE)
Green Xg
0.290
Yg
0.606
Blue Xb
0.144
Yb
0.064
- 42” LCD Module (LGD) LC420WUD-SBM4
5.2. 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
** The W/B Tolerance is ±0.002 for Adjustment, but for DQA ±0.015
6. SET Optical Feature
6.1. General feature
(Measurement Condition: Full white/ Vivid -> Measure the black luminance after 30 seconds.
6.2. Special feature
Dynamic CR 40000:1 -> Measure the black luminance after 30 seconds.
No.
Item
Luminance(min)
C/R(min)
Remark
AV,COMPONENT,HDMI
AV,COMPONENT,HDMI
1
47 inch
400 cd/m
2
1000
except from the PC mode.
No.
Item Min
Typ
Max
Remark
1
Dynamic CR
90,000
100,000
HDMI 720p Full Black pattern
(Only HDMI mode)
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7. Component Video Input (Y, C
B
/P
B
, C
R
/P
R
)
No
Specification
Remark
Resolution
H-freq(kHz)
V-freq(Hz)
1.
720x480 15.73
60.00
SDTV,DVD
480i
2.
720x480 15.63
59.94
SDTV,DVD
480i
3.
720x480
31.47
59.94
480p
4.
720x480
31.50
60.00
480p
5.
720x576
15.625
50.00
SDTV,DVD 625 Line
6.
720x576 31.25
50.00
HDTV
576p
7.
1280x720
45.00
50.00
HDTV 720p
8.
1280x720
44.96
59.94
HDTV 720p
9.
1280x720 45.00
60.00
HDTV
720p
10.
1920x1080 31.25
50.00
HDTV
1080i
11.
1920x1080
33.75
60.00
HDTV 1080i
12.
1920x1080 33.72
59.94
HDTV
1080i
13.
1920x1080 56.250
50
HDTV
1080p
14.
1920x1080
67.43/67.5
59.94/60 HDTV
1080p
No
Specification
Proposed
Remark
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel Clock(MHz)
1.
720*400
31.468
70.08
28.321
For only DOS mode
2.
640*480 31.469
59.94
25.17 VESA
Input 848*480 60Hz, 852*480 60Hz
-> 640*480 60Hz Display
3.
800*600
37.879
60.31
40.00 VESA
4.
1024*768
48.363
60.00
65.00
VESA(XGA)
5.
1280*768 47.78 59.87
79.5
WXGA
6.
1360*768 47.72
59.8
84.75
WXGA
7.
1280*1024 63.595 60.0
108.875
SXGA
FHD
model
8.
1920*1080 66.587
59.93
138.625
WUXGA
FHD
model
8. RGB (PC)
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