DOWNLOAD LG 47LG30D (CHASSIS:LB81A) Service Manual ↓ Size: 5.55 MB | Pages: 25 in PDF or view online for FREE

C

2008

- 9 -

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

HDCP

37.684

75.00

31.50

3

800*600

37.879

60.31

40.00

VESA

HDCP

46.875

75.00

49.50

4

1024*768

48.363

60.00

65.00

VESA(XGA)

HDCP

56.470

70.00

75.00

60.123

75.029

78.75

5

1280*768

47.78

59.87

79.5

WXGA

HDCP

6

1360*768

47.72

59.8

84.75

WXGA

HDCP

7

1366*768

47.56

59.6

84.75

WXGA

HDCP

1

720*480

31.47

59.94

27.00

SDTV 480P(4:3)

2

720*480

31.50

60

27.027

SDTV 480P(4:3)

3

640*480

31.469

59.94

25.175

SDTV 480P(4:3)

4

640*480

31.469

60.00

25.20

SDTV 480P(4:3)

5

720*480

31.47

59.94

27.000

SDTV 480P(16:9)

6

720*480

31.50

60.00

27.027

SDTV 480P(16:9)

7

720*576

31.25

50.00

27.000

SDTV 576P

8

1280*720

37.50

50.00

74.176

HDTV 720P

HDCP

9

1280*720

44.96

59.94

74.176

HDTV 720P

HDCP

10

1280*720

45.00

60.00

74.250

HDTV 720P

11

1920*1080

33.72

59.94

74.176

HDTV 1080I

HDCP

12

1920*1080

33.75

60.00

74.250

HDTV 1080I

HDCP

13

1920*1080

28.125

50.00

74.250

HDTV 1080I  50Hz

HDCP

14

1920*1080

27.000

24.00

74.250

HDTV 1080P 24Hz HDCP

15

1920*1080

56.250

50

148.500

HDTV 1080P 50Hz HDCP

16

1920*1080

67.433

59.94

148.352

HDTV 1080P

HDCP

17

1920*1080

67.500

60

148.500

HDTV 1080P

HDCP

C

2008

- 10 -

This specification sheet is applied to all of the LCD TV with
LB81A chassis.

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.

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)

Temperature : at 25±5ºC 
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

7) Don’t push The “IN STOP KEY” after completing the

function inspection.

* APC - After Manual-Insult, executing APC

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.

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.  

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

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

(4)

filexxx.bin

(5)

(7) ........ OK

(6)

filexxx.bin

C

2008

- 11 -

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

1) Auto RGB Gain/Offset Adjustment

- Convert to PC in Input-source
- 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)]

- 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 “

G

” key at “ADC

CALIBRATION: RGB-PC”.  

1) Component Gain/Offset Adjustment

- Convert to Component in Input-source
- 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.

Impress Resolution 1080i
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 “

G

” key at “ADC CALIBRATION :

COMPONENT”.

Impress Resolution 480i

Impress Resolution 1080i

- Check Input and Signal items. (cf. work instructions) 

1) TV
2) AV 
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)

(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)).

** 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 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)

* If pressing button “Power on”, luminance is minimum 200

cd/m

2

* 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.

* Don’t push The “IN STOP KEY” after completing the function

inspection.

(Only Apply for MNT Model)

Check if Power LED Color and Power Consumption operate
as standard. 
- Set Input to RGB and connect D-sub cable to set
- Measurement Condition: (100-240V@ 50/60Hz)
- Confirm DPM operation at the state of screen without Signal

- 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. 

In case of 2008 year new model for Australia and Taiwan
which is developed with Mstar scaler, Manufacture gave no
use for downlad of EDID for HDMI 1/2/3/4 because HDMI
EDID data is in the Application Program.

- 12 -

C

2008

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)