LG 55LV555H (CHASSIS:LA05E) Service Manual ▷ View online
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5.5. 55LV555H-UA, V6
No.
Item
Min
Typ
Max
Unit
Remarks
1
Max Luminance
Module
320
400
cd/m
2
(Center 1-point / Full White Pattern)
Set
350
400
2
Luminance uniformity
77
5point
3
Color coordinate
RED
X
Typ.
0.649
Typ.
(Default)
Y
-0.03
0.333
+0.03
GREEN
X
0.308
Y
0.607
BLUE
X
0.150
Y
0.060
WHITE
X
0.279
Y
0.292
4
Contrast ratio
1000:1
1400:1
15,000:1
20,000:1
Applied condition: vivid
6
Color Temperature
Cool
0.254
0.269
0.284
The W/B Tolerance is
0.258
0.273
0.288
±0.015 for Adjustment
Medium
0.270
0.285
0.300
0.278
0.293
0.308
Warm
0.298
0.313
0.324
0.314
0.329
0.344
- 10 -
6. Component Video Input (Y, C
B/
P
B
, C
R
/P
R
)
No Resolution
H-freq(kHz) V-freq.(kHz) Pixel
clock
Proposed
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
31.50
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.
1920*1080
33.75
60.00
74.25
HDTV 1080I
7.
1920*1080
33.72
59.94
74.176
HDTV 1080I
8.
1920*1080
67.500
60
148.50
HDTV 1080P
7. RGB Input (PC)
No Resolution
H-freq(kHz) V-freq.(kHz) Pixel
clock
Proposed
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 .
800*600
37.879
60.31
40.00
VESA(SVGA)
O
6. 800*600
48.077
72.18
50.00
VESA(SVGA)
O
7.
1024*768
48.363
60.00
65.00
VESA(XGA)
O
8. 1024*768
56.476
70.06
75.00
VESA(XGA)
O
9.
1280*768
47.776
59.87
79.50
CVT(WXGA)
O
10. 1280*768
60.289
4.893
102.25
CVT(WXGA)
O
11.
1360*768
47.712
60.015
85.50
VESA(WXGA)
O
12.
1280*1024
63.981
60.020
108.00
VESA (SXGA)
O
13.
1280*1024
79.976
75.025
135
VESA (SXGA)
O
14. 1600*1200
75.000
60.000
162
VESA
(UXGA)
X
15.
1920*1080
66.587 59.934 138.50
WUXGA
O
(Reduced Blanking)
- 11 -
8. HDMI input (PC/DTV)
No Resolution
H-freq(kHz) V-freq.(kHz) Pixel
clock
Proposed
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)
X
4. 800*600
35.156
56.25
36.00
VESA(SVGA)
O
5 .
800*600
37.879
60.31
40.00
VESA(SVGA)
O
6. 800*600
48.077
72.18
50.00
VESA(SVGA)
X
7. 800*600
46.875
75.00
49.50
VESA(SVGA)
X
8.
1024*768
48.363
60.00
65.00
VESA(XGA)
O
9. 1024*768
56.476
70.06
75.00
VESA(XGA)
X
10. 1024*768
60.023
75.02
78.75
VESA(XGA)
X
11. 1280*768
47.776
59.870
79.5
CVT(WXGA)
O
12
1360*768
47.712
60.015
85.50
VESA (WXGA)
O
13.
1280*1024
63.981
60.020
108.00
VESA (SXGA)
O
14.
1280*1024
79.976
75.025
135
VESA (SXGA)
X
15. 1600*1200
75.000
60.000
162
VESA
(UXGA)
X
16.
1920*1080 67.500
60.000
148.50
HDTV
1080P
O
DTV
1
720*480
31.47
60
27.027
SDTV 480P
O
2
720*480
31.47
59.94
27.00
SDTV 480P
O
3
1280*720
45.00
60.00
74.25
HDTV 720P
O
4
1280*720
44.96
59.94
74.176
HDTV 720P
O
5
1920*1080
33.75
60.00
74.25
HDTV 1080I
O
6
1920*1080
33.72
59.94
74.176
HDTV 1080I
O
7
1920*1080
67.500
60
148.50
HDTV 1080P
O
8
1920*1080
67.432
59.939
148.352
HDTV 1080P
O
9
1920*1080
27.000
24.000
74.25
HDTV 1080P
O
10
1920*1080
26.97
23.976
74.176
HDTV 1080P
O
11
1920*1080
33.75
30.000
74.25
HDTV 1080P
O
12
1920*1080
33.71
29.97
74.176
HDTV 1080P
O
- 12 -
ADJUSTMENT INSTRUCTION
1. Application range
This spec. sheet applies to LA05E Chassis applied LED LCD
TV all models manufactured in TV factory
TV all models manufactured in TV factory
2. Specification
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 AdjThe 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.
65±10% of relative humidity if there is no specific
designation.
2.4 The input voltage of the receiver must keep
100~240V, 50/60Hz.
2.5 The receiver must be operated for about 5 minutes
prior to the adjustment when module is in the
circumstance of over 15
circumstance of over 15
In case of keeping module is in the circumstance of
0°C, it should be placed in the circumstance of above
15°C for 2 hours
0°C, it should be placed in the circumstance of above
15°C for 2 hours
In case of keeping module is in the circumstance of
below -20°C, it should be placed in the circumstance of
above 15°C for 3 hours,.
below -20°C, it should be placed in the circumstance of
above 15°C for 3 hours,.
Caution) When still image is displayed for a period of 20
minutes or longer (especially where W/B scale is
strong. Digital pattern 13ch and/or Cross hatch
pattern 09ch), there can some afterimage in the
black level area.
strong. Digital pattern 13ch and/or Cross hatch
pattern 09ch), there can some afterimage in the
black level area.
3. Adjustment items
3.1 Main PCB check process
• Adjust 480i Comp
• Adjust 1080p Comp
• Adjust RGB
• Adjust 1080p Comp
• Adjust RGB
Above adjustment items can be also performed in Final
Assembly if needed. Both Board-level and Final assembly
adjustment items can be check using In-Star Menu 1.ADJUST
CHECK.
Assembly if needed. Both Board-level and Final assembly
adjustment items can be check using In-Star Menu 1.ADJUST
CHECK.
3.2 Final assembly adjustment
• EDID/DDC download
• White Balance adjustment
• RS-232C functionality check
• Factory Option setting per destination
• Ship-out mode setting (In-Stop)
• White Balance adjustment
• RS-232C functionality check
• Factory Option setting per destination
• Ship-out mode setting (In-Stop)
3.3 Etc
• Ship-out mode
• Tool option menu
• USB Download(S/W Update, Option, Service only)
• ISP Download(Option)
• Tool option menu
• USB Download(S/W Update, Option, Service only)
• ISP Download(Option)
4. Automatic Adjustment
4.1. ADC Adjustment
(1) Overview
ADC adjustment is needed to find the optimum black level
and gain in Analog-to-Digital device and to compensate
RGB deviation.
and gain in Analog-to-Digital device and to compensate
RGB deviation.
(2) Equipment & Condition
1) Jig (RS-232C protocol)
2) MSPG-925 Series Pattern Generator(MSPG-925FA)
2) MSPG-925 Series Pattern Generator(MSPG-925FA)
- Resolution : 480i Comp1 (MSPG-925FA: model-209,
pattern-65)
1080P Comp1 (MSPG-925FA: model-225,
pattern-65)
1024*768 RGB (MSPG-925FA: model-
126 , pattern-65)
pattern-65)
1024*768 RGB (MSPG-925FA: model-
126 , pattern-65)
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7±0.1 Vp-p
- Pattern level : 0.7±0.1 Vp-p
(3) Adjustment
1) Adjustment method
- Using RS-232, adjust items listed in 3.1 in the other
shown in “4.1.3.3”
2) Adj. protocol
Ref.) ADC Adj. RS232C Protocol_Ver1.0
3) Adj. order
- aa 00 00 [Enter ADC adj. mode]
- xb 00 40 [Change input source to Component1(No
- xb 00 40 [Change input source to Component1(No
action)]
- ad 00 10 [Adjust 480i Comp1]
- ad 00 10 [Adjust 1080p Comp1]
- xb 00 60 [Change input source to RGB(No action)]
- ad 00 10 [Adjust 1080p RGB]
- ad 00 90 End adj.
- ad 00 10 [Adjust 1080p Comp1]
- xb 00 60 [Change input source to RGB(No action)]
- ad 00 10 [Adjust 1080p RGB]
- ad 00 90 End adj.
Protocol
Command
Set ACK
Enter adj. mode
aa 00 00
a 00 OK00x
Source change
xb 00 40
b 00 OK40x (Adjust 480i Comp1 )
(Adjust 1080p Comp1)
xb 00 60
b 00 OK60x (Adjust 1080p RGB)
Begin adj.
ad 00 10
Return adj. result
OKx (Case of Success)
NGx (Case of Fail)
Read adj. data
(main)
(main : component1 480i, RGB 1080p)
ad 00 20
000000000000000000000000007c007b006dx
(sub)
(main : component1 1080p)
ad 00 21
000000070000000000000000007c00830077x
Confirm adj.
ad 00 99
NG 03 00x (Fail)
NG 03 01x (Fail)
NG 03 02x (Fail)
OK 03 03x (Success)
End adj.
aa 00 90
a 00 OK90x
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