LG 42LS3450 (CHASSIS:LT21C) Service Manual ▷ View online
- 13 -
3.2.3. LAN Inspection
3.2.3.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig
3.2.3.2. LAN inspection solution
▪ LAN Port connection with PCB
▪ Network setting at MENU Mode of TV
▪ setting automatic IP
▪ Setting state confirmation
▪ If automatic setting is finished, you confirm IP and MAC
Address.
3.2.4. LAN PORT INSPECTION(PING TEST)
3.2.4.1. Equipment setting
1) Play the LAN Port Test PROGRAM.
2) Input IP set up for an inspection to Test
Program.
*IP Number : 12.12.2.2
3.2.4.2. 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
3.2.5. Model name & Serial number Download
3.2.5.1. Model name & Serial number D/L
■ Press “Power on” key of service remocon.(Baud rate :
115200 bps)
■ Connect RS232C/USB cable to Side USB Jack.
■ Write Serial number by use RS-232C to Side USB.
■ Must check the serial number at Instart menu.
3.2.5.2. 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 produced
in production line, because serial number D/L is mandatory
by D-book 4.0
※
Manual Download (Model Name and Serial Number)
If the TV set is downloaded By OTA or Service man,
Sometimes model name or serial number is initialized.
(Not always) It is impossible to download by bar code scan, so
It need Manual download.
▪ Press the ‘instart’ key of ADJ remote controller.
▪ Go to the menu ‘6.Model Number D/L’ like below photo.
▪ Input the Factory model name(ex 42LD450-TA) or Serial
number like photo
▪ Check the model name Instart menu -> Factory name
displayed (ex 42LE7500-TA)
▪ Check the Diagnostics (DTV country only) -> Buyer model
displayed (ex 42LE7500-TA)
=> Caution : Not to push the INSTOP KEY after completion if
the function inspection.
- 14 -
4. Total Assembly line process
4.1. Adjustment Preparation
■ W/B Equipment condition
CA210 : CH 9, Test signal : Inner pattern (80IRE) – in case of
CCFL back light
CA210 : CH14, Test signal : Inner pattern (80IRE) – in case of
LED back light
■ Above 5 minutes H/run in the inner pattern. (“power on” key of
adjust remote control)
Color
Temperature
Cool
13,000k K
X=0.269
(±0.002)
Y=0.273
(±0.002)
32LS3500-
DA_AUO
32/42LS3400-
DA_LGD
32/42LM3400-
DB_LGD
<Test signal>
Inner pattern
(204 Gray
80IRE)
Medium 9,300k K
X=0.285
(±0.002)
Y=0.293
(±0.002)
Warm
6,500k K
X=0.313
(±0.002)
Y=0.329
(±0.002)
■ In case of Edge LED module, the color coordinates is changing
by aging, so you have to use the below table.
H/R Time(Min)
Cool
Medium
Warm
LED Module(LGD).
x
y
x
x
y
x
269 273 285 293 313 329
1
0-2 min
280 291 296 311 319 340
2
3-5 min
278 288 294 308 317 338
3
6-9 min
276 285 292 305 315 335
4
10-19 min
274 282 290 302 313 332
5
20-35 min
273 279 289 299 312 329
6
36-49 min
270 276 287 296 310 326
7
50-79 min
269 273 286 293 308 323
8 Over 80 min 269 273 285 293 308 323
※
Connecting picture of the measuring instrument
(On Automatic control)
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push Adjustment R/C POWER-ON -> Enter
the mode of White-Balance, the pattern will come out.
●
Auto-control interface and directions
(1) Adjust in the place where the influx of light like floodlight
around is blocked. (Illumination is less than 10ux).
(2) Adhere closely the Color Analyzer ( CA210 ) to the module
less than 10cm distance, keep it with the surface of the
Module and Color Analyzer’s Prove vertically.(80~100°).
(3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 5 minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others, check
the back light on.
● Auto adjustment Map(RS-232C)
RS-232C COMMAND
[ CMD ID DATA ]
Wb 00 00 White Balance Start
Wb 00 ff White Balance End
RS-232C COMMAND
[CMD ID DATA]
MIN
CENTER
(DEFAULT)
MAX
Cool
Mid
Warm
Cool
Mid
Warm
R Gain
jg
Ja
jd
00
172
192
192
192
G Gain
jh
Jb
je
00
172
192
192
192
B Gain
ji
Jc
jf
00
192
192
172
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
** Caution **
Color Temperature : COOL, Medium, Warm.
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range of
Module)
*Manual W/B process using adjusts Remote control.
■After enter Service Mode by pushing “ADJ” key,
■Enter White Balance by pushing “►” key at “7. White Balance”.
※
After You finish all adjustments, Press “In-start” button and
compare Tool option and Area option value with its BOM, if it is
correctly same then unplug the AC cable.
If it is not same, then correct it same with BOM and unplug AC
cable. For correct it to the model’s module from factory JIG
model.
※
Push The “IN STOP KEY” after completing the function
inspection. And Mechanical Power Switch must be set “ON”.
- 15 -
4.2. DDC EDID Write (RGB 128Byte)
■ Connect D-sub Signal Cable to D-Sub Jack.
■ Write EDID DATA to EEPROM (24C02) by using DDC2B
protocol.
■ Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to Insert
Process in advance.
4.3. DDC EDID Write (HDMI 256Byte)
■ Connect HDMI Signal Cable to HDMI Jack.
■ Write EDID DATA to EEPROM(24C02) by using DDC2B
protocol.
■ Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to Insert
Process in advance.
4.4. EDID DATA
1) All Data : HEXA Value
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
- Auto Download
■ After enter Service Mode by pushing “ADJ” key,
■ Enter EDID D/L mode.
■ Enter “START” by pushing “OK” key.
HDMI number is dependent on model.
※
Edid data and Model option download (RS232C)
NO
Item
CMD 1 CMD 2
Data 0
Enter
download
MODE
Download
‘Mode In’
A
E
0
0
When transfer
the ‘Mode In’,
Carry the com-
mand
Edid data
and Model
option
download
Download
A
E
*Note1 *Note2
Automatically
download
(The use of a
internal Data)
Adjust
‘Mode Out’ A
E
9
0
.
Adjustment
Confirma-
tion
A
E
9
9
To check
Download
on Assembly
line.
- Manual Download
※
※
Caution
* 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 below for EDID Writing.
- Download HDMI1, HDMI2 separately because HDMI1 is
different from HDMI2.
For Analog EDID
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
No.
Item
Condition
Hex Data
1
Manufacturer ID
GSM
1E6D
2
Version
Digital : 1
01
3
Revision
Digital : 3
03
- 16 -
* EDID data for FHD 3DTV_8bit (Model name = LG TV)
- HDMI EDID table (0x1E : Physical Address)
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 01 00 01 01 01 01
10 01 16 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
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 66 21 50 B0 51 00 1B 30
50 40 70 36 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 00 00 00 FC
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 43
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
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 66 21 50 B0 51 00 1B 30
50 40 70 36 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 00 00 00 FC
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 43
0
02 03 33 F1 4E 10 9F 04 13 05 14 03 02 12 20 21
10 22 15 01 26 15 07 50 09 57 07 78 03 0C 00 10 00
20 80 1E 20 C0 0E 01 40 0A 0F 08 10 18 10 98 10 58
30 10 38 10 01 1D 80 18 71 1C 16 20 58 2C 25 00 20
40 C2 31 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55
50 00 20 C2 31 00 00 1E 02 3A 80 18 71 38 2D 40 58
60 2C 45 00 A0 5A 00 00 00 1E 01 1D 00 BC 52 D0 1E
70 20 B8 28 55 40 C4 8E 21 00 00 1E 00 00 00 00 23
20 80 1E 20 C0 0E 01 40 0A 0F 08 10 18 10 98 10 58
30 10 38 10 01 1D 80 18 71 1C 16 20 58 2C 25 00 20
40 C2 31 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55
50 00 20 C2 31 00 00 1E 02 3A 80 18 71 38 2D 40 58
60 2C 45 00 A0 5A 00 00 00 1E 01 1D 00 BC 52 D0 1E
70 20 B8 28 55 40 C4 8E 21 00 00 1E 00 00 00 00 23
1) HDMI 1 Check sum : 0x43, 0X23 (CEA Block 0x1E :10)
2) HDMI 2 Check sum : 0x43, 0X13 (CEA Block 0x1E :20)
3) HDMI 3 Check sum : 0x43, 0X03 (CEA Block 0x1E :30)
* EDID data for FHD 2DTV(Support deep color)
10bit (Model name = LG TV)
- HDMI EDID table (0x1E : Physical Address)
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 01 00 01 01 01 01
10 01 16 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
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 66 21 50 B0 51 00 1B 30
50 40 70 36 00 A0 5A 00 00 00 1E 00 00
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
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 66 21 50 B0 51 00 1B 30
50 40 70 36 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 00 00 00 FC
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 43
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 43
0
02 03 22 F1 4E 10 9F 04 13 05 14 03 02 12 20 21
10 22 15 01 26 15 07 50 09 57 07 67 03 0C 00 10 00
20 B8 2D 01 1D 80 18 71 1C 16 20 58 2C 25 00 20 C2
30 31 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55 00
40 20 C2 31 00 00 1E 02 3A 80 18 71 38 2D 40 58 2C
50 45 00 A0 5A 00 00 00 1E 01 1D 00 BC 52 D0 1E 20
60 B8 28 55 40 C4 8E 21 00 00 1E 00 00
20 B8 2D 01 1D 80 18 71 1C 16 20 58 2C 25 00 20 C2
30 31 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55 00
40 20 C2 31 00 00 1E 02 3A 80 18 71 38 2D 40 58 2C
50 45 00 A0 5A 00 00 00 1E 01 1D 00 BC 52 D0 1E 20
60 B8 28 55 40 C4 8E 21 00 00 1E 00 00
00
00 00 00
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DE
1) HDMI 1 Check sum : 0x43, 0XDE (CEA Block 0x1E :10)
2) HDMI 2 Check sum : 0x43, 0XCE (CEA Block 0x1E :20)
3) HDMI 3 Check sum : 0x43, 0XBE (CEA Block 0x1E :30)
* EDID data for FHD 2DTV(Non-Support deep color)
8bit (Model name = LG TV)
- HDMI EDID table (0x1E : Physical Address)
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 01 00 01 01 01 01
10 01 16 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
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 66 21 50 B0 51 00 1B 30
50 40 70 36 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 00 00 00 FC
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 43
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
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 66 21 50 B0 51 00 1B 30
50 40 70 36 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 00 00 00 FC
70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 43
0
02 03 22 F1 4E 10 9F 04 13 05 14 03 02 12 20 21
10 22 15 01 26 15 07 50 09 57 07 67 03 0C 00 10 00
20 80 1E 01 1D 80 18 71 1C 16 20 58 2C 25 00 20 C2
30 31 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55 00
40 20 C2 31 00 00 1E 02 3A 80 18 71 38 2D 40 58 2C
50 45 00 A0 5A 00 00 00 1E 01 1D 00 BC 52 D0 1E 20
60 B8 28 55 40 C4 8E 21 00 00 1E 00 00
20 80 1E 01 1D 80 18 71 1C 16 20 58 2C 25 00 20 C2
30 31 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55 00
40 20 C2 31 00 00 1E 02 3A 80 18 71 38 2D 40 58 2C
50 45 00 A0 5A 00 00 00 1E 01 1D 00 BC 52 D0 1E 20
60 B8 28 55 40 C4 8E 21 00 00 1E 00 00
00
00 00 00
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 25
1) HDMI 1 Check sum : 0x43, 0X25 (CEA Block 0x1E :10)
2) HDMI 2 Check sum : 0x43, 0X15 (CEA Block 0x1E :20)
3) HDMI 3 Check sum : 0x43, 0X05 (CEA Block 0x1E :30)
* EDID data for HD 2DTV ( Model name = LG TV )
- HDMI EDID table (0x1E : Physical Address)
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 01 00 01 01 01 01
10 01 16 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01
30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70
40 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30
50 18 88 03 06 40 84 63 00 00 18 00 00 00 FD 00 3A
60 3E 1E 53 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 A4
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01
30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70
40 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30
50 18 88 03 06 40 84 63 00 00 18 00 00 00 FD 00 3A
60 3E 1E 53 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 A4
0
02 03 22 F1 4E 10 1F 84 13 05 14 03 02 12 20
21
10 22 15 01 26 15 07 50 09 57 07 67 03 0C 00 10
00
20 80 1E 01 1D 80 18 71 1C 16 20 58 2C 25 00 A0
5A
30 00 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55
00
40 20 C2 31 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10
3E
50 96 00 A0 5A 00 00 00 18 02 3A 80 18 71 38 2D
40
60 58 2C 45 00 A0 5A 00 00 00 1E 00 00
00
00 00
00
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
5B
1) HDMI 1 Check sum : 0xA4, 0X5B (CEA Block 0x1E :10)
2) HDMI 2 Check sum : 0xA4, 0X4B (CEA Block 0x1E :20)
3) HDMI 3 Check sum : 0xA4, 0X3B (CEA Block 0x1E :30)
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