LG 42CL40-UA (CHASSIS:LA92B) Service Manual ▷ View online
- 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
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
45º of the panel surface.
4) Measure method
• In standard test condition,impress 30*30 dots White Window Pattern signal .
• 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
by IEC61988-2/CD,JAPAN EIAJ-2710
- 9 -
A: H/ 4mm
B: V/ 4mm
@ H,V: Active Area
B: V/ 4mm
@ H,V: Active Area
8. Component Video 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 31.47
60
27.027
SDTV
480P
4.
720*480 31.47
59.94
27.0
DTV
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
23.94
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
- 10 -
No
Specification
Remark
DDC
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel Clock(MHz)
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.
800*600 37.879 60.31
40.00
VESA(SVGA)
O
5.
1024*768 48.363
60.00
65.00
VESA(XGA)
O
6.
1280*768
47.776
59.870 79.5
CVT(WXGA)
X
7.
1360*768 47.712
60.015
85.50
VESA
(WXGA)
X
8.
1280*1024
63.981
60.020
108.00 VESA
(SXGA)
O
9.
1600*1200
75.00
60.00 162
VESA
(UXGA)
O
10.
1920*1080
66.587 59.934 148.5
HDTV
1080P
O
9. RGB
9
.1 PC INPUT
10. HDMI Input (PC/DTV)
10.1 PC Mode
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
1 640*350
31.468
70.09
25.17
EGA
2 720*400
31.469
70.08
28.32
DOS
3 640*480
31.469
59.94
25.17
VESA(VGA)
4 800*600
37.879
60.31
40.00
VESA(SVGA)
5
1024*768
48.363 60.00
65.00
VESA(XGA)
6 1280*768
47.776
59.870
79.5
CVT(WXGA)
7 1360*768
47.712
60.015
85.50
VESA
(WXGA)
8 1280*1024
63.981
60.020
108.00
VESA
(SXGA)
9 1600*1200
75.00
60.00
162
VESA
(UXGA)
10
1920*1080 67.5
60
148.5
HDTV
1080P
10.2 DTV Mode
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
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 23.94
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
- 11 -
11. EDID(The Extended Display Identification Data)
/ DDC(Display Data Channel) download
/ DDC(Display Data Channel) download
11.1 Overview
It is a VESA regulation. A PC or a MNT will display an optimal resolution through information sharing without any necessity of user
input. It is a realization of “Plug and Play”. Equpment
input. It is a realization of “Plug and Play”. Equpment
11.2 Equipment
• Adj. R/C
• Since embedded EDID data is used, EDID download jig, HDMI cable and D-sub cable are not need.
• Since embedded EDID data is used, EDID download jig, HDMI cable and D-sub cable are not need.
11.3 Download method
Press Adj. key On the Adj. R/C, press Adj. key then select EDID D/L. By pressing Enter key, EDID download will begin.
1) If Download is successful, OK is displayed.
2) If Download is a failure, NG is displayed.
3) Re-try download.
2) If Download is a failure, NG is displayed.
3) Re-try download.
11.4 EDID Data
• Reference: Download is only possible in POWER ON MODE.
• RGB [C/S: 36FF]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
Block Type: EDID 1.3
• HDMI I [C/S: 1BCA]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
Block Type: EDID 1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version3
Block Type: CEA EDID Timing Extension Version3
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00 FF FF FF
FF FF FF 00 1E 6D 02 00 01 01 01 01
10
01 13 01
03 68 73 41 78 0A CF 74 A3 57 4C B0 23
20 09
48 4C A1 08 00 A9 40 81 80 61 40 45 40 31 40
30 01 01 01
01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40
45 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20
50 6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 39
60
3F 1F 52 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 00 4C 47 20 54
56 0A 20 20 20 20 20 20 20 00
36
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00 FF FF
FF FF FF FF 00 1E 6D 02 00 01 01 01 01
10
03 13 01 03
80 73 41 78 0A CF 74 A3 57 4C B0 23
20
09 48 4C A1 08 00 A9 40 81 80 61 40 45 40 31 40
30 01 01 01
01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20
50
6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 39
60
3F 1F 52 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 00 4C 47 20 54 56 0A 20 20 20 20 20
20 20 01 1B
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02 03 1F F1 47 90 22 20 05 04 03 02 26 15 07 50
10 09 07 07
67 03 0C 00 10 00 B8 2D E3 05 03 01 02
20 3A 80 18 71 38 2D 40 58 2C 04 05 7E 8A 42 00 00
30
1E 01 1D
80 18 71 1C 16 20 58 2C 25 00 7E 8A 42
40
00 00 9E 01 1D 00 72 51
D0 1E 20 6E 28 55 00 7E
50 8A 42 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96
60 00 7E 8A 42 00 00 18 26 36 80 A0 70 38 1F 40 30
70
20 25 00 7E 8A 42 00 00 1A 00 00 00 00 00 00 9A
- 12 -
• HDMI II [C/S: 1BBA]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
Block Type: EDID 1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version3
Block Type: CEA EDID Timing Extension Version3
• HDMI III [C/S: 1BAA]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
Block Type: EDID 1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version3
Block Type: CEA EDID Timing Extension Version3
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00 FF FF
FF FF FF FF 00 1E 6D 02 00 01 01 01 01
10
03 13 01 03
80 73 41 78 0A CF 74 A3 57 4C B0 23
20
09 48 4C A1 08 00 A9 40 81 80 61 40 45 40 31 40
30 01 01 01
01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20
50
6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 39
60
3F 1F 52 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 00 4C 47 20 54 56 0A 20 20 20 20 20
20 20 01 1B
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02 03 1F F1 47 90 22 20 05 04 03 02 26 15 07 50
10 09 07 07
67 03 0C 00 10 00 B8 2D E3 05 03 01 02
20 3A 80 18 71 38 2D 40 58 2C 04 05 7E 8A 42 00 00
30
1E 01 1D 80 18 71 1C 16 20 58 2C 25 00 7E 8A 42
40
00 00 9E 01 1D 00 72 51
D0 1E 20 6E 28 55 00 7E
50 8A 42 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96
60 00 7E 8A 42 00 00 18 26 36 80 A0 70 38 1F 40 30
70
20 25 00 7E 8A 42 00 00 1A 00 00 00 00 00 00 9A
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02 03 1F F1 47 90 22 20 05 04 03 02 26 15 07 50
10 09 07 07
67 03 0C 00 30 00 B8 2D E3 05 03 01 02
20 3A 80 18 71 38 2D 40 58 2C 04 05 7E 8A 42 00 00
30
1E 01 1D
80 18 71 1C 16 20 58 2C 25 00 7E 8A 42
40
00 00 9E 01 1D 00 72 51
D0 1E 20 6E 28 55 00 7E
50 8A 42 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96
60 00 7E 8A 42 00 00 18 26 36 80 A0 70 38 1F 40 30
70
20 25 00 7E 8A 42 00 00 1A 00 00 00 00 00 00 9A
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00 FF FF
FF FF FF FF 00 1E 6D 02 00 01 01 01 01
10
03 13 01 03
80 73 41 78 0A CF 74 A3 57 4C B0 23
20
09 48 4C A1 08 00 A9 40 81 80 61 40 45 40 31 40
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20
50
6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 39
60
3F 1F 52 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 00 4C 47 20 54 56 0A 20 20 20 20 20
20 20 01 1B
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