LG 72LEX9S-CA (CHASSIS:LC03N) Service Manual ▷ View online
- 9 -
4.3.2 LAN inspection solution
- LAN Port connection with PCB
- Network setting at MENU Mode of TV
- Setting automatic IP
- Setting state confirmation
- Setting automatic IP
- Setting state confirmation
▪ If automatic setting is finished,
you confirm IP and MAC Address.
you confirm IP and MAC Address.
4.4 LAN PORT INSPECTION(PING TEST)
4.4.1. Equipment setting
1) Play the LAN Port Test PROGRAM.
2) Input IP set up for an inspection to Test
Program.
2) Input IP set up for an inspection to Test
Program.
*IP Number : 12.12.2.2
4.4.2. LAN PORT inspection (PING TEST)
1) Play the LAN Port Test Program.
2) connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) remove LAN CABLE
2) connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) remove LAN CABLE
4.5 EDID download
1)
Enter ‘EZ ADJUST’ mode by pushing ‘ADJ’ key.
2) Select and enter ’
10.EDID D/L’ mode.
3) Select ‘
START’ by pushing ‘OK’ key.
Caution : Never connect HDMI & D-sub Cable
when auto download.
EDID D/L
HDMI1
NG
HDMI2
NG
HDMI3
NG
RGB
NG
Start
Reset
EDID D/L
HDMI1
OK
HDMI2
OK
HDMI3
OK
RGB
OK
Start
Reset
※
EDID data and Model option download (RS232)
NO
Item
CMD
1
CMD
2
Data
0
Enter
download
MODE
Download
‘Mode In’
A
A
0 0
When transfer
the ‘Mode In’,
Carry the
command.
data and
Model option
Download
Download A
E
00 10
Automatically
download
(The use of a
internal Data)
EDID
- 10 -
※
Manual Download
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
☞
Caution
- Never connect HDMI & D-sub Cable at the
same time.
- Use the proper cables as below for EDID writing.
- Download HDMI1, HDMI2, HDMI3 separately
- Download HDMI1, HDMI2, HDMI3 separately
because each data is different.
For Analog EDID
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
■ 72LEX9(s)-CA
[
RGB
EDID data : 128 byte ]
0 1 2 3 4 5 6 7 8 9 A B C D E F
00 00 FF FF FF FF FF FF 00
1E 6D
ⓐ
ⓑ
10
ⓒ
01 03
68
10 09
78 0A
EE 91
A3
54
4C
99 26
20
0F 50 54
A1 08 00 81 80 61 40 45 40 31 40 01 01
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00
A0 5A 00
00 00 1E 01 1D 00 72 51 D0 1E 20
50 6E 28 55 00
A0 5A 00
00 00 1E 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20
ⓓ
70
ⓓ
00 ⓔ
[
HDMI
EDID data : 256 byte ]
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
00 00 FF FF FF FF FF FF 00
1E 6D
ⓐ
ⓑ
10
ⓒ
01 03
80
10
09
78
0A
EE 91
A3
54
4C
99 26
20
0F 50 54
A1 08 00
71
4F
81
80
01
01
01 01 01 01
30 01 01 01 01 01 01
02
3A
80
18
71
38
2D 40 58 2C
40 45 00
A0 5A 00
00
00
1E
01
1D
00
72
51 D0 1E 20
50 6E 28 55 00
A0 5A
00
00
00
1E
00
00
00 FD 00 3A
60 3E 1E 53 10 00 0A 20
20
20
20
20
20
ⓓ
70
ⓓ
01 ⓔ
80 02 03 26 F1 4E 10
1F
84
13
05
14
03
02 12 20 21
90 22 15 01 26 15 07
50
09
57
07
ⓕ
A0
ⓕ
E3 05 03 01
01
1D
80
18
71
1C
16 20 58 2C
B0 25 00
A0 5A 00
00
00
9E
01
1D
00
80
51 D0 0C 20
C0 40 80 35 00
A0 5A
00
00
00
1E
02
3A
80 18 71 38
D0 2D 40 58 2C 45 00
A0 5A
00
00
00
1E
66 21 50 B0
E0 51 00 1B 30 40 70
36
00
A0 5A
00
00
00 1E 00 00
F0 00 00 00 00 00 00
00
00
00
00
00
00
00 00 00 ⓔ
No.
Item
Condition
Hex Data
1 Manufacturer ID
GSM
1E6D
2 Version
Digital : 1
01
3 Revision
Digital : 3
03
☞
Detail EDID Options are below (ⓐ, ⓑ, ⓒ, ⓓ, ⓔ, ⓕ)
ⓐ
Product ID
MODEL NAME HEX EDID Table DDC Function
FHD
0001
01
00
Analog/Digital
ⓑ
Serial No. : Controlled on production line.
ⓒ
Week, Year : Fixed as S/W
released day(same as MES data)
Week 0x02(2), Year 0x13(2009)
ⓓ
Model Name(Hex) :
MODEL
MODEL NAME(HEX)
Remark
All Models
00 00 00 FC 00 4C 47 20 54 56 0A
20 20 20 20 20 20 20
LG TV
ⓔ
Checksum
Model RGB
HDMI1
HDMI2
HDMI3
FHD
0x1d 0xD7, 0x39 0xD7, 0x29 0Xd7, 0x19
ⓕ
Vendor Specific(HDMI)
Model INPUT HEX
Remark
HDMI1 67 03 0C 00
10
00 B8 2D
HDMI2 67 03 0C 00
20
00 B8 2D
FHD
67 03 0C 00
30
00 B8 2D
HDMI3
4.6
V-Com
adjustment(
Only M+S models
which use LGD module)
1) Why need Vcom adjustment?
▣ The Vcom (Common Voltage) is a Reference
Liquid Crystal need for Polarity Change with
every frame.
Voltage of Liquid Crystal Driving.
Row Line
Column Line
C
LC
C
ST
Panel
S
Y
S
T
E
Y
S
T
E
M
G
at
e
Driv
e
IC
So urce D r iv e I C
Circuit Block
Ti m in g
Co nt r o ll er
Po w er
Blo ck
V
COM
Gamma
Re f er ence V o ltage
Gamm a Reference
Volta ge
Data (R,G,B) & C ontro l s ignal
Control si gnal
Data (R,G,B ) &
Control si gnal
In
te
rf
a
ce
TFT
Po w er I n p u t
Power Input
Da t a I n p u t
Da t a I n p u t
V
COM
Liquid
Crystal
V
COM
2) Adjust sequence (Method 1)
- Push ‘
PIP’ key .
-
If there is flicker at default value, turn down or
turn up until no flicker, push ‘OK’ key to store.
- Push ‘
Exit’ key to exit.
- 11 -
3) Adjust sequence (Method 2)
- Enter ‘
EZ ADJUST’ mode by pushing ‘ADJ’ key.
- Select and enter ’
12.V-Com’ mode.
-
If there is flicker at default value, turn down
or turn up until no flicker, push ‘OK’ key to store.
- Push ‘
Exit’ key to exit.
V-Com
◀
V-COM
370
▶
Press (⊙) to save.
4.6 Model name & Serial number Download
4.61 Model name & Serial number D/L
1) Press “Power on” key of service remocon.
(Baud rate : 115200 bps)
2) Connect RS232 Signal Cable to RS-232 Jack.
3) Write Serial number by RS-232.
3) Write Serial number by RS-232.
4) Check the serial number in ‘IN-START’ menu.
4.6.2 Method & notice
1) Serial number D/L is using of scan equipment.
2) Setting of scan equipment operated by Manufacturing
Technology Group.
3) Serial number D/L must be conformed when it is
※
Manual Download (Model Name and Serial Number)
If the TV set is downloaded by OTA or Service man, so
metimes model name or serial number is initialized.
There is impossible to download by bar code scan,
so It need Manual download.
1) Press the ‘IN-START’ key of ADJ remote controller.
2) Go to the menu ‘
5.Model Number D/L
’ like below photo.
3) Input the Factory model name (ex 72LEX9-CA) or
4) Check the model name in ‘IN-START’ menu
Factory name displayed (ex 72LEX9-CA)
produced in production line,
Serial number like photo.
5. Manual Adjustment
5.1 ADC(GP2 BCM) Adjustment
5.1.1 Overview
5.1.1 Overview
ADC adjustment is needed to find the optimum black level
and gain in Analog-to-Digital device and to compensate
RGB deviation.
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, 720*480
MSPG-925FA
Model: 209, Pattern: 65) - 480i
1080p, 1920*1080
(MSPG-925FA
Model: 225, Pattern: 65) - 1080p
- 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, 1080p Comp1
1) Check connected condition of Comp1 cable to
5.1.3.1 ADC 480i, 1080p Comp1
1) Check connected condition of Comp1 cable to
the equipment
2) Give a
480i, 1080p Mode, Horizontal 100%
Color Bar Pattern to Comp1.
(MSPG-925FA Model: 209, Pattern: 65) - 480i
(MSPG-925FA Model: 225, Pattern: 65) - 1080p
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.
5) If ADC calibration is successful, “ADC COMPONEN
T Success” is displayed.
If ADC calibration is failure, “ADC COMPONENT Fail”
is displayed.
6) If ADC calibration is failure, after recheck ADC pattern
Error message refer to 5)
or condition retry calibration
model:255 , pattern:65 )
3) Change input mode as RGB and picture mode as
“Standard”
4) Press the In-start Key on the ADJ remote after at
least1 min of signal reception. Then, select 7.
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.
6) If ADC calibration is failure, after recheck ADC
Error message
5.2 White Balance Adjustment
5.2.1 Overview
1) W/B adj. Objective & How-it-works
1) W/B adj. Objective & How-it-works
- Objective: To reduce each Panel’s W/B deviation
- How-it-works: When R/G/B gain in the OSD is at
its Full Dynamic Range.
prevent saturation of Full Dynamic range and data,
one of R/G/B is fixed at 192, and the other two is
lowered to find the desired value.
-Adj. condition : normal temperature
▪ Surrounding Temperature: 25±5℃
▪ Warm-up time: About 5 Min
▪ Surrounding Humidity: 20% ~ 80%
5.2.2 Equipment
1) Color Analyzer: CA-210 (
LED Module : CH 14
)
2) Adj. Computer(During auto adj., RS-232C protocol
3) Adjust Remocon
4) Video Signal Generator MSPG-925F 720p/216-
Gray (Model:217, Pattern:78)
→ Only when internal pattern is not available
※
Color Analyzer Matrix should be calibrated using
CS-1000
Bar Pattern
pattern or condition retry calibration
refer to 5)
192, it means the panel is at
In order to
is needed)
External ADC ->
5.2.3 Equipment connection MAP
Ex)
wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f -> Gain adj. complete
*(wb 00 20(start), wb 00 2f(endc)) -> Off-set adj.
wb 00 ff ->End white balance auto adj.
3) Adj. Map
Adj. item
Command
(lower
Data
Range
(Hex.)
Default
(Decimal)
(Decimal)
CMD1 CMD2 MIN MAX
R Gain j
g
00 C0
172
G Gain j
h
00 C0
172
B
Gain j
i
00
C0
192
R
Cut
64
Cool
G
Cut
64
caseASCII)
- 12 -
5.1.3.2 ADC 1920*1080 RGB
1) Check connected condition of Component & RGB
cable to the equipment
2) Give a
1920*1080 Mode, 100% Horizontal Color
to RGB port.
(MSPG-925 Series
Color Analyzer
Computer
Pattern Generator
※
※If TV internal pattern is used, not
Signal
Source
Probe
RS-
232C
RS-
232C
RS-
232C
5.2.4 Adj. Command (Protocol)
1) Command Format
1) Command Format
START 6E A 50 A LEN A 03 A CMD
A 00 A VAL A CS A STOP
- LEN: Number of Data Byte to be sent
- CMD: Command
- VAL: FOS Data value
- CS: Checksum of sent data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
2) RS-232C Command used during auto-adj.
RS-232C
COMMAND
[CMD
ID
DATA]
Explanation
wb
00 00
Begin White Balance adj.
wb
00 10
Gain adj.(internal white pattern)
wb
00 1f
Gain adj. completed
wb
00 20
Offset adj.(internal white pattern)
wb
00 2f
Offset adj. completed
wb
00 ff
End White Balance adj.
(internal pattern disappears )
Details
Click on the first or last page to see other 72LEX9S-CA (CHASSIS:LC03N) service manuals if exist.