LG 47LG50DC (CHASSIS:LA85Z) Service Manual ▷ View online
C
2008
- 7 -
5. Chroma & Brightness
No
Item
Min.
Typ.
Max.
Unit
Remark
1
White peak brightness
400
500
cd/m
2
(Center 1-point / Full White Pattern)
2
White average brightness
cd/m
2
N/A
3
Brightness uniformity
80
%
Full white
4
Color coordinate
RED
X
0.640
± 0.03
Y
0.330
± 0.03
GREEN
X
0.280
± 0.03
Y
0.600
± 0.03
BLUE
X
0.150
± 0.03
Y
0.060
± 0.03
WHITE
X
0.272
± 0.03
Y
0.277
± 0.03
5
Color coordinate uniformity
N/A
6
Contrast ratio
1000:1
1500:1
12000:1
15000:1
DCR
7
Color Temperature
Cool
10,000
11,000
12,000
<Test Signal>
Standard
8,300
9,300
10,300
HDMI input
Warm
5,500
6,500
7,500
85% Full white pattern
8
Color Distortion, DG
10.0
%
9
Color Distortion, DP
10.0
deg
10
Color S/N, AM/FM
43.0
dB
11
Color Killer Sensitivity
-80
dBm
6. Component Video Input (Y, C
B
/P
B
, C
R
/P
R
)
No.
Specification
Remark
Resolution H-freq(kHz)
V-freq(Hz)
Pixel
clock
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
31.47
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
59.939
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
C
2008
- 8 -
No. Specification
Remark
Resolution H-freq(kHz)
V-freq(Hz)
Pixel
clock(MHz)
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
640*480
37.861
72.80
31.50
VESA(VGA)
O
5
640*480
37.500
75.00
31.50
VESA(VGA)
O
6
600*800
35.156
56.25
36.00
VESA(SVGA)
O
7
800*600
37.879
60.31
40.00
VESA(SVGA)
O
8
800*600
48.077
72.18
50.00
VESA(SVGA)
O
9
800*600
46.875
75.00
49.50
VESA(SVGA)
O
10
1024*768
48.363
60.00
65.00
VESA(XGA)
O
11
1024*768
56.476
70.06
75.00
VESA(XGA)
O
12
1024*768
60.023
75.02
78.75
VESA(XGA)
O
13
1280*768
47.776
59.87
79.50
CVT(WXGA)
O
14
1280*768
60.289
74.893
102.25
CVT(WXGA)
O
15
1360*768
47.712
60.015
85.50
VESA(WXGA)
O
16
1280*1024
63.981
60.020
108.00
VESA(SXGA)
O
17
1280*1024
79.976
75.025
135
VESA(SXGA)
O
18
1600*1200
75.00
60.00
162
VESA(UXGA)
O
19
1920*1080
62.95
55.96
138.5
HDTV 1080P
O
7. RGB input (PC)
- 9 -
C
2008
8. HDMI input (PC/DTV)
No. Resolution
H-freq(kHz) V-freq(Hz)
Pixel
clock(MHz)
Remark
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
640*480
37.861
72.80
31.50
VESA(VGA)
O
5
640*480
37.500
75.00
31.50
VESA(VGA)
O
6
600*800
35.156
56.25
36.00
VESA(SVGA)
O
7
800*600
37.879
60.31
40.00
VESA(SVGA)
O
8
800*600
48.077
72.18
50.00
VESA(SVGA)
O
9
800*600
46.875
75.00
49.50
VESA(SVGA)
O
10
1024*768
48.363
60.00
65.00
VESA(XGA)
O
11
1024*768
56.476
70.06
75.00
VESA(XGA)
O
12
1024*768
60.023
75.02
78.75
VESA(XGA)
O
13
1280*768
47.776
59.87
79.50
CVT(WXGA)
O
14
1360*768
47.712
60.015
85.50
VESA(WXGA)
O
15
1280*1024
63.981
60.020
108.00
VESA(SXGA)
O
16
1280*1024
79.976
75.025
135
VESA(SXGA)
O
17
1600*1200
75.00
60.00
162
VESA(UXGA)
O
18
1920*1080
67.5
60
148.5
HDTV 1080P
O
DTV
1
720*480
31.47
60
27.027
SDTV 480P
2
720*480
31.47
59.94
27.00
SDTV 480P
3
1280*720
45.00
60.00
74.25
HDTV 720P
4
1280*720
44.96
59.94
74.176
HDTV 720P
5
1920*1080
33.75
60.00
74.25
HDTV 1080I
6
1920*1080
33.72
59.94
74.176
HDTV 1080I
7
1920*1080
67.500
60
148.50
HDTV 1080P
8
1920*1080
67.432
59.939
148.352
HDTV 1080P
9
1920*1080
27.000
24.000
74.25
HDTV 1080P
10
1920*1080
26.97
23.976
74.176
HDTV 1080P
11
1920*1080
33.75
30.000
74.25
HDTV 1080P
12
1920*1080
33.71
29.97
74.176
HDTV 1080P
C
2008
- 10 -
ADJUSTMENT INSTRUCTION
1. Application Range
These instructions are applied to all of the LCD TV, LA84Z
Chassis.
Chassis.
2. Notice
2.1 Because this is not a hot chassis, it is not necessary to
use an isolation transformer. However, the use of
isolation transformer will help protect test instrument.
isolation transformer will help protect test instrument.
2.2 Adjustment must be done in the correct order. But it is
flexible when its factory local problem occurs.
2.3 The adjustment must be performed in the circumstance of
25±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.
there is no specific designation.
2.4 The input voltage of the receiver must keep 220V, 60Hz.
2.5 Before adjustment, execute Heat-Run for 15 minutes.
2.5 Before adjustment, execute Heat-Run for 15 minutes.
O
After Receive 100% Full white pattern then process
display.
display.
O
How to make set white pattern
A. Press Power ON button of Adjust. Remocon
B. Press ADJ button of Adjust. remocon. Select "10. Test
B. Press ADJ button of Adjust. remocon. Select "10. Test
pattern" and, after select "White" using navigation
button, and then you can see 100% Full White
pattern.
button, and then you can see 100% Full White
pattern.
* In this status you can maintain Heat-Run useless any
pattern generator
Note) If you maintain one picture over 20 minutes (Especially
sharp distinction black with white pattern – 13Ch, or
Cross hatch pattern – 09Ch) then it can appear image
stick near black level
Cross hatch pattern – 09Ch) then it can appear image
stick near black level
3. Adjust ADC(MST3361)
3.1 Overview
The ADC adjustment automatically sets the optimum black
level and the gain and compensates the RGB deviation at the
Analog-to-Digital converter
level and the gain and compensates the RGB deviation at the
Analog-to-Digital converter
3.2 Devices and conditions to use
1) RS-232C Jig, RS-232C Cable, Phone cable
2) MSPG-925FA Serise Pattern Generator(MSPG-925FA)
2) MSPG-925FA Serise Pattern Generator(MSPG-925FA)
- Resolution: 480i, 1080p
- Pattern name: Horizontal 100% Color Bar Pattern
- Pattern level: 0.7±0.1 Vp-p
- Image
- Pattern name: Horizontal 100% Color Bar Pattern
- Pattern level: 0.7±0.1 Vp-p
- Image
3.3 How to adjust
3.3.1 ADC 480i Comp1
1) Check the Component1 connection condition from the
used device.
2) Apply 480i Mode, Horizontal 100% Color Bar Pattern
to Comp1 port.
(MSPG-925FA => Model: 209, Pattern: 65)
3) Set the input to Component1 and select ‘Normal’ as
video.
4) Wait for one second or longer after receiving the
signal, press the ADJ key of the R/C to enter into 'Ez-
Adjust', select '3. ADC 480i Comp1', and press the
Enter key to automatically adjust.
Adjust', select '3. ADC 480i Comp1', and press the
Enter key to automatically adjust.
5) If it is normally adjusted, the message "ADC
Component1 Success" is displayed.
6) If it is not normally adjusted, the message 'ADC
Component1 480i Fail' is displayed. If the component
is not connected, the message Component1 Not
Connected, or if the input format is not 480i, the
message 'Not Valid Format', or if there is no input
signal, the message 'Check Signal Status' is displayed
for one second.
is not connected, the message Component1 Not
Connected, or if the input format is not 480i, the
message 'Not Valid Format', or if there is no input
signal, the message 'Check Signal Status' is displayed
for one second.
7) If the adjustment is failed, check the pattern or the
adjustment condition and then readjust
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