LG 72LEX9S-CA (CHASSIS:LC03N) Service Manual ▷ View online
- 5 -
6. Component Video Input (Y, C
B
/P
B
, C
R
/P
R
)
No.
Specification
Resolution
H-freq(kHz)
V-freq(Hz)
1.
720*480
15.73
60.00
SDTV, DVD 480I
2.
720*480
15.63
59.94
SDTV, DVD 480I
3.
720*480
59.94
SDTV, DVD 625 Line
4.
720*480
31.50
60.00
480P
5.
720*576
15.625
50.00
480P
6.
720*576
31.25
50.00
HDTV 576P
7.
1280*720
45.00
50.00
HDTV 720P
8.
1280*720
44.96
59.94
HDTV 720P
9.
1280*720
45.00
60.00
HDTV 720P
10.
1920*1080
31.25
50.00
HDTV 1080i
11.
1920*1080
33.75
60.00
HDTV 1080i
12.
1920*1080
33.72
59.94
HDTV 1080i
13.
1920*1080
56.250
50
HDTV 1080P
14.
1920*1080
67.43/67.5
59.94/60
HDTV 1080P
Remarks
31.47
No
Item
Min
Typ
Max
Unit
Measured Result
Remark
2D
400
500
cd/m²
72LEX9(S)-
CA 2D
1
Luminance
3D
cd/m²
72LEX9(S)-
CA 3D
X
0.646
RED
Y
0.330
X
0.303
GREE
N
Y
0.640
X
0.152
BLUE
Y
0.059
X
0.279
WHITE
Y
0.292
72LEX9(S)-
CA
X
TBD
RED
Y
TBD
X
TBD
GREE
N
Y
TBD
X
TBD
BLUE
Y
TBD
X
0.279
2
Color
coordinate
(CIE1931)
WHITE
Y
Typ.
-0.03
0.292
Typ.
+0.03
cd/m²
72LEX9(S)-
CA
3
Contrast ratio
1000(TBD)
1200
72LEX9(S)-
CA
5. Chrominance & Luminance Specification
- 6 -
8. HDMI Input
(1) DTV Mode
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
1.
720*480
31.469/31.5
59.94/60
27.00/27.03
SDTV 480P
2.
720*576
31.25
50.00
54
SDTV 576P
3.
1280*720
37.500
50
74.25
HDTV 720P
4.
1280*720
44.96/45
59.94/60.00
74.17/74.25
HDTV 720P
5.
1920*1080
33.72/33.75
59.94/60
7417/74.25
HDTV 1080I
6.
1920*1080
28.125
50.00
74.25
HDTV 1080I
7. 1920*1080
26.97/27
23.97/24
74.17/74.25
HDTV 1080P
8.
1920*1080
33.716/33.75
29.976/30.00
74.25
HDTV 1080P
9.
1920*1080
56.250
50
148.5
HDTV 1080P
10.
1920*1080
67.43/67.5
59.94/60
148.35/148.50
HDTV 1080P
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
1.
720*400
31.468
70.08
28.321
HDCP
2.
640*480
31.469
59.94
25.17
VESA
3.
800*600
37.879
60.31
40.00
VESA
4.
1024*768
48.363
60.00
VESA(XGA)
5.
1280*768
47.78
59.87
79.5
WXGA
6.
1360*768
47.72
WXGA
7.
1920*1080
67.5 60 148.5
WUXGA
59.8
108.875
65.00
(2) PC Mode
HDCP
HDCP
HDCP
HDCP
HDCP
HDCP
HDCP
HDCP,
HDCP,
FHD model
No.
Proposed
Remarks
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel Clock(MHz)
1.
720*400
31.468
70.08
28.321
2.
640*480
31.469
59.94
25.17
VESA
3.
800*600
37.879
60.31
40
VESA
4.
1024*768
48.363
60.00
65
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
63.981
60.02
108.875
SXGA
FHD model
8.
1920*1080
66.587
59.93
138.5
FHD model
For only DOS mode
7. RGB (PC)
WUXGA
Input 848*480 60Hz,852*480 60Hz
640*480 60Hz Disply
- 7 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LCD TV with
LC03N chassis.
2. Designation
(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.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance
of 25 ºC ± 5 ºC of temperature and 65 % ± 10 % of relative
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep AC 100-240
V~ 50 / 60Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the 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
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.
[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.
3.2 Final assembly adjustment
- White Balance adjustment
- RS-232C functionality check
- PING Test
- Factory Option setting per destination
- Ship-out mode setting (In-Stop)
- RS-232C functionality check
- PING Test
- Factory Option setting per destination
- Ship-out mode setting (In-Stop)
3. Adjustment items
3.1 Main PCB check process
- MAC address download
- Adjust ADC at 480i Comp1
- Adjust ADC at 1920*1080p Comp1, RGB
- EDID/DDC download
- Adjust ADC at 1920*1080p Comp1, RGB
- EDID/DDC download
3.3 Etc
- Ship-out mode
- Service Option Default
- USB download(S/W Update, Option, service only)
- Service Option Default
- USB download(S/W Update, Option, service only)
4. Automatic Adjustment
4.1 ADC Adjustment
4.1.1 Overview
ADC adjustment is needed to find the optimum black
level and gain in Analog-to-Digital device and to
compensate RGB deviation.
level and gain in Analog-to-Digital device and to
compensate RGB deviation.
Above adjustment items can be also performed in Final A-
ssembly if needed.
adjustment items can be checked with ‘1
.ADJUST CHECK’ in ‘
Both Board-level and Final assembly
IN-START’ menu.
4.1.2 Equipment & Condition
1) Jig (RS-232C protocol)
2) MSPG-925 Series pattern generat
1) Jig (RS-232C protocol)
2) MSPG-925 Series pattern generat
or (MSPG-925FS, pattern -65)
- Resolution : 480i Comp1 (MSPG-925FS,
Model-209, pattern -65)
1080P Comp1 (MSPG-925FS,
Model-255, pattern -65)
1920*1080 RGB (MSPG-925FS,
Model-255, pattern -65)
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7±0.1 Vp-p
- Image
4.1.3 Adjustment
4.1.3.1 Adjustment method
- Using RS-232, adjust items listed in 3.1
in the other shown in ‘4.1.3.3’.
- 8 -
4.1.3.2 Adj. protocol
Protocol
Command
Set ACK
Enter adj.
mode
aa 00 00
a 00 OK00x
Source
change
xb 00
40
xb 00
60
b 00 OK04x
(Adjust 480i, 1080p Comp1 )
b 00 OK06x
(Adjust 1920*1080 RGB)
Begin adj. ad 00 10
Return adj.
result
OKx (Case of Success)
NGx (Case of Fail)
NGx (Case of Fail)
Read adj.
data
(main)
ad 00 20
(sub )
ad 00 21
ad 00 20
(sub )
ad 00 21
(main)
0000000000000000
00000000007c007b006dx
(Sub)
0000000700000000
00000000007c00830077x
Confirm
adj.
ad 00 99
NG 03 00x (Fail)
NG 03 01x (Fail)
NG 03 02x (Fail)
OK 03 03x (Success)
NG 03 01x (Fail)
NG 03 02x (Fail)
OK 03 03x (Success)
End adj.
aa 00 90
a 00 OK90x
Ref.) ADC Adj. RS232C Protocol_Ver1.0
4.1.3.3 Adj. order
- aa 00 00 [Enter ADC adj. mode]
- xb 00
- xb 00
40
[Change input source to Component1
(480i&1080p)]
- ad 00 10 [Adjust 480i&1080p Comp1]
- xb 00
- xb 00
60
[Change input source to RGB(1920*1080)]
- ad 00 10 [Adjust 1920*1080 RGB]
- aa 00 90 End adj.
Ref) ADC adj. RS232C Protocol_Ver1.0
- aa 00 90 End adj.
Ref) ADC adj. RS232C Protocol_Ver1.0
4.2 MAC Address (
SKD DON’T NEED
)
4.2.1 Equipment & Condition
- Play file: Serial.exe
- MAC Address edit
- Input Start / End MAC address
- MAC Address edit
- Input Start / End MAC address
4.2.2 Download method
4.2.2.1 Communication Prot connection :
4.2.2.1 Communication Prot connection :
PCBA Jig-> RS-232C Port== PC-> RS-232C Port
PCBA
PC(RS-232C)
RS-232C Port
4.2.2.2 MAC Address Download
-
Com 1,2,3,4 and 115200(Baudrate)
- Click Port connection button.(1)
-
-
Click Load button(2) for writing
MAC address.
- Click MAC Address write button(3).
- Check the OK or NG
- Check the OK or NG
4.3 LAN PORT (Automatic IP)
4.3.1 Equipment & Condition
- Each other connection to LAN Port of IP
Hub and Jig
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