LG 42LG70YD (CHASSIS:LB81D) Service Manual ▷ View online
- 9 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LCD TV with
LB81D chassis.
LB81D chassis.
2. Designation
1) The adjustment is according to the order which is designated
and which must be followed, according to the plan which can
be changed only on agreeing.
be changed only on agreeing.
2) Power Adjustment: Free Voltage
3) Magnetic Field Condition: Nil.
4) Input signal Unit: Product Specification Standard
5) Reserve after operation: Above 5 Minutes (Heat Run)
3) Magnetic Field Condition: Nil.
4) Input signal Unit: Product Specification Standard
5) Reserve after operation: Above 5 Minutes (Heat Run)
Temperature : at 25±5ºC
Relative humidity : 65±10%
Input voltage : 220V, 60Hz
Relative humidity : 65±10%
Input voltage : 220V, 60Hz
6) Adjustment equipments: Color Analyzer (CA-210 or CA-
110), Pattern Generator (MSPG-925L or Equivalent), DDC
Adjustment Jig equipment, SVC remote controller
Adjustment Jig equipment, SVC remote controller
7) Don’t push The “IN STOP” key after completing the function
inspection.
3. Main PCB check process
* APC - After Manual-Insult, executing APC
* Download
1) Execute ISP program “Mstar ISP Utility” and then click
“Config” tab.
2) Set as below, and then click “Auto Detect” and check “OK”
message. If display “Error”, Check connect computer, jig,
and set.
and set.
3) Click “Connect” tab.
If display “Can’t”, Check connect computer, jig, and set.
4) Click “Read” tab, and then load download file(XXXX.bin) by
clicking “Read”.
5) Click “Auto” tab and set as below
6) Click “Run”.
7) After downloading, check “OK” message.
6) Click “Run”.
7) After downloading, check “OK” message.
* USB DOWNLOAD
1) Put the USB Stick to the USB socket
2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is Low,
it didn’t work. But your downloaded version is High, USB
data is automatically detecting
data is automatically detecting
3) Show the message “Copying files from memory”
4) Updating is staring.
5) Fishing the version uploading, you have to put USB stick
and “AC Power” off.
6) After putting “AC Power” on and check updated version on
your TV.
USB
(1)
(3)
(2)
OK
Please Check Speed :
To us speed between from 200 KHz
to 400 KHz
To us speed between from 200 KHz
to 400 KHz
(4)
filexxx.bin
(5)
(7) ........ OK
(6)
filexxx.bin
- 10 -
* After downloading, have to adjust Tool Option again.
1) Push "IN-START" key in service remote controller
2) Select "MODEL SELECT" and Push “OK” button.
3) Go To “INCH” and choice proper inch.
4) TV power turn off and on.
5) Completed selecting Tool option
2) Select "MODEL SELECT" and Push “OK” button.
3) Go To “INCH” and choice proper inch.
4) TV power turn off and on.
5) Completed selecting Tool option
3.1. ADC Process
(1) PC input ADC
1) Auto RGB Gain/Offset Adjustment
- Convert to PC in Input-source
- Signal equipment displays
- Signal equipment displays
Output Voltage : 700 mVp-p
Impress Resolution XGA (1024 x 768 @ 60Hz)
Model : 60 in Pattern Generator
Pattern : 65 in Pattern Generator (MSPG-925 Series,
MPSG-1025D) - 7 color bar.
[gray pattern that left & right is black and center is
white signal(Refer below picture)]
Impress Resolution XGA (1024 x 768 @ 60Hz)
Model : 60 in Pattern Generator
Pattern : 65 in Pattern Generator (MSPG-925 Series,
MPSG-1025D) - 7 color bar.
[gray pattern that left & right is black and center is
white signal(Refer below picture)]
- Adjust by commanding AUTO_COLOR_ADJUST.
2) Confirmation
- We confirm whether “0xAA (RGB)” address of
EEPROM “0xA2” is “0xAA” or not.
- If “0xAA (RGB)” address of EEPROM “0xA2” isn’t
“0xAA”, we adjust once more
- We can confirm the ADC values from “0xA4~0XA9
(RGB)” addresses in a page “0xA2”
* Manual ADC process using Service Remocon. After
enter Service Mode by pushing “ADJ” key,
execute “ADC Adjust” by pushing “
execute “ADC Adjust” by pushing “
G
” key at “ADC
CALIBRATION: RGB-PC”.
(2) COMPONENT input ADC
1) Component Gain/Offset Adjustment
- Convert to Component in Input-source
- Signal equipment displays
- Signal equipment displays
Impress Resolution 480i
MODEL : 209 in Pattern Generator(480i Mode)
Pattern : 65 in Pattern Generator (MSPG-925 Series,
MPSG-1025D) - 7 color bar.
MODEL : 209 in Pattern Generator(480i Mode)
Pattern : 65 in Pattern Generator (MSPG-925 Series,
MPSG-1025D) - 7 color bar.
Impress Resolution 1080i
Model : 223 in Pattern Generator(1080i Mode)
Pattern: 65 in Pattern Generator (MSPG-925 Series,
MPSG-1025D) - 7 color bar.
Model : 223 in Pattern Generator(1080i Mode)
Pattern: 65 in Pattern Generator (MSPG-925 Series,
MPSG-1025D) - 7 color bar.
- Adjust by commanding AUTO_COLOR_ADJUST.
2) Confirmation
- We confirm whether “0xB3 (480i)/0xBC (1080i)”
address of EEPROM “0xA2” is “0xAA” or not.
- If “0xB3 (480i)/0xBC(1080i)” address of EEPROM
“0xA2” isn’t “0xAA”, we adjust once more.
- We can confirm the ADC values from “0xAD~0XB2
(480i)/0XB6~BB (1080i)” addresses in a page “0xA2”.
* Manual ADC process using Service Remocon. After
enter Service Mode by pushing “ADJ” key, execute “ADC
Adjust” by pushing “
Adjust” by pushing “
G
” key at “ADC CALIBRATION :
COMPONENT”.
Impress Resolution 480i
Impress Resolution 1080i
3.2. Function Check
(1) Check display and sound
- Check Input and Signal items. (cf. work instructions)
1) TV
2) AV (SCART1/SCART2/S-VHS/CVBS)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI
6) PC Audio In
* Display and Sound check is executed by Remote
2) AV (SCART1/SCART2/S-VHS/CVBS)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI
6) PC Audio In
* Display and Sound check is executed by Remote
controller.
<Fig. 1> Adjustment pattern(PC)
4. Total Assembly line process
4.1. Adjustment Preparation
(1) W/B Equipment condition
CA210: CH 9, Test signal: Inner pattern (85IRE)
(2) Above 5 minutes H/run in the inner pattern. (“power on”
key of adjust remote control)
(3) 15 Pin D-Sub Jack is connected to the AUTO W/B
EQUIPMENT.
(4) Adjust Process will start by execute I2C Command (Inner
pattern (0xF3, 0xFF).
(5) Adjust Process will finish by execute I2C Command (Inner
pattern (Inner pattern (0xF3,0x00)).
(6) At the adjust W/B, the spec of luminance set the Min 200
cd/m
2
(7) In specially, the spec of luminance set the Min150 cd/m
2
at
the module of sharp.
** 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)
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 Pattern off of service mode, and change off -->
- Enter White Pattern off of service mode, and change off -->
on.
- Enter “W/B ADJUST” by pushing “
G
” key at “3.W/B ADJUST”.
- The default value of RGB GAIN is 192 at Cool, Medium,
Warm. (There is a difference between picture image and set)
* After done 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.
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.
* Don’t push The “IN STOP KEY” after completing the function
inspection.
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
- Write EDID DATA to EEPROM (24C02) by using DDC2B
protocol.
- Check whether written EDID data is correct or not.
4.3. DDC EDID Write
In case of 2008 year new model for Australia which is
developed with Mstar scaler, Manufacture have no use for
download of EDID for HDMI1/2/3/4 and RGB because EDID
data is in the Application Program.
developed with Mstar scaler, Manufacture have no use for
download of EDID for HDMI1/2/3/4 and RGB because EDID
data is in the Application Program.
4.4. EDID DATA
No USE the EDID data of Digital data (HDMI 1,2,3,4) and
Analog EDID data (RGB) As EDID data is recorded in the
Mstar (Main IC) Except for RGB EDID data.
Analog EDID data (RGB) As EDID data is recorded in the
Mstar (Main IC) Except for RGB EDID data.
(1) ANALOG DATA 128Byte (2Bi)
EDID block 0, Bytes 0-127[00H-7FH]
Block Type : EDID 1.3
Block Type : EDID 1.3
(2) DIGITAL DATA(HDMI-1) 256Byte
EDID block 0, Bytes 0-127[00H-7FH]
Block Type : EDID 1.3
Block Type : EDID 1.3
EDID block 1, Bytes 128-255[80H- FFH]
Block Type : CEA EDID Timing Extension Version 3.
Block Type : CEA EDID Timing Extension Version 3.
- 11 -
Color
Cool
11,000
ºK X=0.276(±0.002)
<Test Signal>
Temperature
Y=0.283(±0.002)
Inner patern
Medium 9,300
ºK X=0.285(±0.002)
(216gray,85IRE)
Y=0.293(±0.002)
Warm
6,500
ºK X=0.313(±0.002)
Y=0.329(±0.002)
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
FB
9C
01
01
01
01
10
0A 12
01
03
01
46
27
78
EA
D9
B0
A3
57
49
9C
25
20
11
49
4B
A5
4E
00
31
40
45
40
61
40
81
80
01
01
30
01
01 D1
C0
01
01
1A
36
80
A0
70
38
1F
40
30
20
40
35
00
E8
26
32
00
00
1A
1B
21
50
A0
51
00
1E
30
50
48
88
35
00
BC
86
21
00
00
1C
00
00
00
FD
00
39
60
4B 1F
54
12
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
00
E4
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
FC
9C
01
01
01
01
10
0A 12
01
03
80
73
41
96
0A
CF
74
A3
57
4C
B0
23
20
09
48 4C
A1
0C
00
31
40
45
40
61
40
81
80
D1
C0
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00 C4
8E
21
00
00
1E
01
1D
00
BC
52
D0
1E
20
50
B8 28
55
40
C4
8E
21
00
00
1E
00
00
00
FD
00
30
60
58
1F
64
11
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
6B
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
23
F1
4E
93
14
12
04
05
03
02
20
1F
21
22
10
10
07
16
23
15
07
50
83
01
00
00
67
03
0C
00
10
20
00 B8 2D
01
1D
80
D0
72
1C
16
20
10
2C
25
80
C4
30
8E 21
00
00
9E
8C
0A D0
90
20
40
31
20
0C
40
55
40
00 C4 8E
21
00
00
18
01
1D
00
72
51
D0
1E
20
6E
50
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
16
60
20
58 2C
25
00
C4
8E
21
00
00
9E
00
00
00
00
00
70
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
10
(3) DIGITAL DATA(HDMI-2) 256Byte
EDID Block 0, Byte 0-127[00H-7FH]
Block Type : EDID 1.3
Block Type : EDID 1.3
EDID block 1, Bytes 128-255[80H- FFH]
Block Type : CEA EDID Timing Extension Version 3.
Block Type : CEA EDID Timing Extension Version 3.
(4) DIGITAL DATA(HDMI-3) 256Byte
EDID Block 0, Byte 0-127[00H-7FH]
Block Type : EDID 1.3
Block Type : EDID 1.3
EDID block 1, Bytes 128-255[80H- FFH]
Block Type : CEA EDID Timing Extension Version 3.
Block Type : CEA EDID Timing Extension Version 3.
1) All Data : HEXA Value
2) Changeable Data :
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
* Because RGB/HDMI EDID Data is download from flash
memory to EDID data storage EEPROM automatically when
you push down “power only” key, download progress is not
needed.
memory to EDID data storage EEPROM automatically when
you push down “power only” key, download progress is not
needed.
4.5. Outgoing condition Configuration
- fffff and make ship condition
- When pressing IN-STOP key by Service remocontrol, Red
- When pressing IN-STOP key by Service remocontrol, Red
LED are blinked alternatively. And then Automatically turn
off. (Must not AC power OFF during blinking)
off. (Must not AC power OFF during blinking)
Confirm whether is normal or not when between power
board's ac block and GND is impacked on 1.5kV(dc) or
2.2kV(dc) for one second
board's ac block and GND is impacked on 1.5kV(dc) or
2.2kV(dc) for one second
- 12 -
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
FC
9C
01
01
01
01
10
0A 12
01
03
80
73
41
96
0A
CF
74
A3
57
4C
B0
23
20
09
48 4C
A1
0C
00
31
40
45
40
61
40
81
80
D1
C0
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00 C4
8E
21
00
00
1E
01
1D
00
BC
52
D0
1E
20
50
B8 28
55
40
C4
8E
21
00
00
1E
00
00
00
FD
00
30
60
58
1F
64
11
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
6B
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
23
F1
4E
93
14
12
04
05
03
02
20
1F
21
22
10
10
07
16
23
15
07
50
83
01
00
00
67
03
0C
00
20
20
00 B8 2D
01
1D
80
D0
72
1C
16
20
10
2C
25
80
C4
30
8E 21
00
00
9E
8C
0A D0
90
20
40
31
20
0C
40
55
40
00 C4 8E
21
00
00
18
01
1D
00
72
51
D0
1E
20
6E
50
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
16
60
20
58 2C
25
00
C4
8E
21
00
00
9E
00
00
00
00
00
70
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
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
FC
9C
01
01
01
01
10
0A 12
01
03
80
73
41
96
0A
CF
74
A3
57
4C
B0
23
20
09
48 4C
A1
0C
00
31
40
45
40
61
40
81
80
D1
C0
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00 C4
8E
21
00
00
1E
01
1D
00
BC
52
D0
1E
20
50
B8 28
55
40
C4
8E
21
00
00
1E
00
00
00
FD
00
30
60
58
1F
64
11
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
6B
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
23
F1
4E
93
14
12
04
05
03
02
20
1F
21
22
10
10
07
16
23
15
07
50
83
01
00
00
67
03
0C
00
30
20
00 B8 2D
01
1D
80
D0
72
1C
16
20
10
2C
25
80
C4
30
8E 21
00
00
9E
8C
0A D0
90
20
40
31
20
0C
40
55
40
00 C4 8E
21
00
00
18
01
1D
00
72
51
D0
1E
20
6E
50
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
16
60
20
58 2C
25
00
C4
8E
21
00
00
9E
00
00
00
00
00
70
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
F0
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