LG 55LD650H (CHASSIS:LA05A) Service Manual ▷ View online
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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
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ADJUSTMENT INSTRUCTION
1. Application range
This spec. sheet applies to LA05A Chassis applied LCD TV
all models manufactured in TV factory
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)
1920*1080 RGB (MSPG-925FA: model-
126 , pattern-65)
pattern-65)
1920*1080 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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5. Manual Adjustment
5.1 ADC(Saturn5) Adjustment
5.1.1 Overview
ADC adjustment is needed to find the optimum black level
and gain
and gain
5.1.2 Equipment & Condition
1) Adjust Remocon
2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern
2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern
Generator
- Resolution: 480i, 1920*1080
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level: 0.7±0.1 Vp-p
- Image
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level: 0.7±0.1 Vp-p
- Image
3) Must use standard cable
5.1.3 Adjust method
5.1.3.1 ADC 480i Comp1
1) Check connected condition of Comp1 cable to the
1) Check connected condition of Comp1 cable to the
equipment
2) Give a 480i Mode, Horizontal 100% Color Bar Pattern to
Comp1.
(MSPG-925FA -> Model: 209, Pattern: 65)
3) Change input mode as Component1 and picture mode
as “Standard”
4) Press the In-start Key on the ADJ remote after at least 1
min of signal reception. Then, select 7. External ADC ->
1. COMP 480i on the menu. Press enter key. The
adjustment will start automatically.
1. COMP 480i on the menu. Press enter key. The
adjustment will start automatically.
5) If ADC calibration is successful, “ADC RGB Success” is
displayed. If ADC calibration is failure, “ADC RGB Fail”
is displayed.
is displayed.
6) If ADC calibration is failure, after recheck ADC pattern or
condition retry calibration Error message refer to
5.1.3.2 ADC 1080p Comp1
1) Check connected condition of Comp1 cable to the
1) Check connected condition of Comp1 cable to the
equipment
2) Give a 1080p Mode, Horizontal 100% Color Bar Pattern
to Comp1.
(MSPG-925FA -> Model: 225, Pattern: 65)
3) Change input mode as Component1 and picture mode
as “Standard”
4) Press the In-start Key on the ADJ remote after at least 1
min of signal reception. Then, select 7. External ADC ->
1. COMP 1080P on the menu. Press enter key. The
adjustment will start automatically.
1. COMP 1080P on the menu. Press enter key. The
adjustment will start automatically.
5) If ADC calibration is successful, “ADC RGB Success” is
displayed. If ADC calibration is failure, “ADC RGB Fail”
is displayed.
is displayed.
6) If ADC calibration is failure, after recheck ADC pattern or
condition retry calibration Error message refer to
5.1.3.2 ADC 1920*1080 RGB
1) Check connected condition of Component & RGB cable
1) Check connected condition of Component & RGB cable
to the equipment
2) Give a 1920*1080 Mode, 100% Horizontal Color Bar
Pattern to RGB port.
(MSPG-925 Series model:60 , pattern:65 )
3) Change input mode as RGB and picture mode as
3) Change input mode as RGB and picture mode as
“Standard”
4) Press the In-start Key on the ADJ remote after at least 1
min of signal reception. Then, select 7. External ADC ->
1. COMP 480i on the menu. Press enter key. The
adjustment will start automatically.
1. COMP 480i on the menu. Press enter key. The
adjustment will start automatically.
5) If ADC calibration is successful, “ADC RGB Success” is
displayed. If ADC calibration is failure, “ADC RGB Fail”
is displayed.
is displayed.
6) If ADC calibration is failure, after recheck ADC pattern or
condition retry calibration Error message refer to 5)
5.2.
EDID (The Extended Display
Identification Data) / DDC (Display
Data Channel) download
Identification Data) / DDC (Display
Data Channel) download
Reference : Download is only possible in POWER ONLY
MODE
5.2.1 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”
optimal resolution through information sharing without any
necessity of user input. It is a realization of “Plug and Play”
5.2.2 Equipment
• Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
• Adjust remocon
5.2.3 Download method
1) Press Adj. key on the Adj. R/C,
2) Select EDID D/L menu.
3) By pressing Enter key, EDID download will begin
4) If Download is successful, OK is display, but If
2) Select EDID D/L menu.
3) By pressing Enter key, EDID download will begin
4) If Download is successful, OK is display, but If
Download is failure, NG is displayed.
5) If Download is failure, Re-try download.
• Caution) When EDID Download, must remove
RGB/HDMI Cable.
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5.2.4 EDID DATA
• HDMI I [C/S: F591]
EDID Block 0 table =
EDID Block 0 table =
EDID Block 1 table =
• HDMIII [C/S: F581]
EDID Block 0 table =
EDID Block 0 table =
EDID Block 1 table =
• RGB [C/S: DE]
EDID Block 0 table =
EDID Block 0 table =
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