DOWNLOAD LG 47LC6DF (CHASSIS:LA75A) Service Manual ↓ Size: 9.1 MB | Pages: 36 in PDF or view online for FREE

(1) MCU Select: MTV412M128
(2) Option

R/W Option: Auto Write(Verity)
Jig Option: Myson
Transmit Speed: Medium

(3) Check: Just do it with blank micom.
(4) PORT

Chose Parallel Port (normal LPT1)
Attention: You must chose EPP when select Rom BIAS at
LPT

(1) Click the Load File.

(2) Locate and select the correct file from your computer.

(*.hex).

(3) Click the Send.

(4) When you see (ISP COMPLETE) the download is

complete.

(1) Necessary items before Adjustment items

- Pattern Generator : (MSPG-925FA)
- Adjust 480i Comp1 (MSPG-925FA:model :209 , pattern :65)
- Adjust 1080p Comp1/RGB (MSPG-925FA : model : 225,

pattern :65)

(2) Adjustment sequence

- ad 00 00 : Enter the ADC Adjustment mode.
- kb 00 04 : Change the mode to Component1 (No actions)
- ad 00 10 : Adjust 480i Comp1(Change the mode and 

adjustment action)

- kb 00 06 : Change to RGB-DTV mode(No action)
- ad 00 10 : Adjust 1080p Comp1/RGB(Change the mode and 

adjustment action)

- ad 00 90 : End of the adjustment

(3) Adjustment protocol

Order

Command

Set response

1. Inter the Adjustment mode

ad 00 00

d 00 OK00x

2. Change the Source

kb 00 04

b 00 OK04x (Adjust 480i Comp1)

kb 00 06  b 00 OK06x (Adjust 1080p Comp1/RGB)

3. Start Adjustment

ad 00 10

4. Return the Response

OKx ( Success condition )

NGx ( Failed condition )

5. Read Adjustment data

(main)

(main)

ad 00 20

000000000000000000000000007c007b006dx 

(sub)

(Sub)

ad 00 21

000000070000000000000000007c00830077x

6. Confirm Adjustment

ad 00 99

NG 03 00x (Failed condition)

NG 03 01x (Failed condition)

NG 03 02x (Failed condition)

OK 03 03x (Success condition)

7. End of Adjustment

ad 00 90

d 00 OK90x

ADC-set is Gain and Black level setting at Analog to Digital
converter, and compensate the RGB deviation

Service R/C, 801GF(802V, 802F, 802R) or MSPG925FA
Pattern Generator (It can output 480i/1080i horizontal 100%
color bar pattern signal, and its output level must setting
0.7V±0.1V p-p correctly)’

(1) ADC 480i Component1 adjustment

1) Set Component 480i mode and 100% Horizontal Color

Bar Pattern(HozTV31Bar), then set TV set to
Component1 mode and its screen to "NORMAL"

2) After get the signal, wait more a second and enter the

"Ez-Adjust" with press ADJ key of Service remocon.
After then select "2.ADC 480i Comp1" with navigator
button and press "Enter". It is automatically adjustment

3) You can see "ADC Component1 Success" message

after Adjustment success
Error Messages: When its adjustment is not correct,
"ADC Component1 480i Fail" message displayed. If
component is not connection "Component1 Not
Connected", its format is not 480i then "Not Valid
Format", its signal don’t out then "Check Signal Status"
message displayed. These messages will be displayed
just a second.

(2) ADC 1080p Component1 / RGB adjustment

- Check connection both of Component1 and RGB
- MSPG-925FA -> Model: 225, Pattern 65
1) Set Component 1080p mode and 100% Horizontal Color

Bar Pattern(HozTV31Bar), then set TV set to
Component1 mode and its screen to "NORMAL" 

2) After get the signal, wait more a second and enter the

"Ez-Adjust" with press ADJ key of Service remocon.
After then select "4.ADC 1080p Comp1/RGB" with
navigator button and press "Enter". First, it is
automatically adjustment Component1.

3) If adjustment is correctly finished, "ADC Component1

Success" message will be displayed. But adjustment is
not correctly finished, "ADC Component1 1080p Fail"
message will be displayed.

4) After adjustment Component1 mode, move to RGB-DTV

mode automatically and RGB adjustment start. After
RGB Adjustment successfully finished, "ADC RGB
1080P Success" message will be displayed.

5) If Adjustment doesn’t success, check conditions all of

the adjustment condition and adjustment again. See
"Error Messages" sentence. 

6) After adjustment finished, press "ADJ" key and exit from

Adjustment mode.

(The Extended Display Identification Data)

(Display Data Channel) 

It is established in VESA, for communication between PC and
Monitor without order from user for building user condition. It
helps to make easily use realize "Plug and Play" function. 

(1) Using instruments

1) Jig. (PC Serial to D-Sub connection) for PC, DDC

adjustment.

2) S/W for DDC recording (EDID data write and read)
3) D-sub jack
4) Additional HDMI cable connection Jig.

(2) Preparing and setting.

1) Set instruments and Jig. Like fig.4), then turn on PC and

Jig. 

2) Operate DDC write S/W (EDID write & read)
3) It will operate in the DOS mode.

<Fig. 1> Adjustment Mode

<Fig. 2> Adjustment Pattern: 480i/1080P 60Hz HozTV30 Bar Pattern

<Fig. 3> Device configuration diagram for HDMI EDID Data input

LCD TV SET

(or Digital Board)

(1) EDID data for LA75A Chassis 

- HDMI1  EDID (DDC (Display Data Channel) Data

* 128byte

* 256byte

- HDMI2  EDID (DDC (Display Data Channel) Data

* 128byte

* 256byte

- Analog (RGB) EDID table - 128byte

* See Working Guide if you want more information about EDID

communication.

- Purpose: to reduce the difference in color temperature

among modules

- Principal: A module is in full dynamic range when RGB Gain

on OSD is 192. To adjust the white balance without causing
full dynamic range and full data, fix one of RGB Gains at 192
and control the other two by reducing them from 192.

(1) Color Analyzer : CA-110  or CA-210
(2) Automatic adjustor (with automatic adjustment necessity

and the RS-232C communication being possible)

(Automatic Adjustment)

Use the internal pattern to adjust White Balance. The pattern
is automatically given when the automatic adjustment device
is connected or when a user presses ADJ on the remote
controller to start Ez Adjust and then selects 6.White-Balance.

*  When you adjust LCD color temperature, on color analyzer

(CA-210), you should use Channel 9 which is Matrix
compensated (White, Red, Green, Blue revised) by CS-1000
and adjust in accordance with White balance adjustment
coordinate which is specified on the next.

(Automatic Adjustment)

(1) Turn on the POWER ON(

Â

) of the remote controller to set

the adjustment and then start the automatic adjustment or
set the Baud Rate to 115200.

(2) Start the adjustment from “wb 00 00” and complete it at

“wb 00 ff”. (Adjust the offset if necessary)

- wb 00 00 the automatic adjustment of White Balance is

started.

- wb 00 10 adjusting gain (internal pattern appears) is

started.

- ja 00 ff adjusting data
- jb 00 c0
- ...
- wb 00 1f adjusting gain is completed.
- Adjust the offset (from wb 00 20 to wb 00 2f) if necessary.
- wb 00 ff the automatic adjustment of White Balance

(internal pattern disappears) is completed.

C A -100+

C O L O R

A N A L Y Z E R

T Y PE ; C A -100+

F u l l W h i t e P at t er n

R S-232C

Connection Diagram of Automatic Adjustment

(Automatic Adjustment)

- LA75C Chassis Model All

(1) Test Equipment: CA-210

(2) Manual adjustment sequence is like bellowed one.

1)Turn to "Ez-Adjust" mode with press ADJ button of

service remocon.

2) Select "9.Test Pattern" with CH+/- button and press

enter. Then set will go on Heat-run mode. Over 30
minutes set let on Heat-run mode.

3) Let CA-210 to zero calibration and must has gap more

10cm from center of LCD module when adjustment. 

4) Press "ADJ" button of service remocon and select

"6.White-Balance" in "Ez-Adjust" then press " 

G

" button

of navigation key. (When press " 

G

" button then set will

go to full white mode)

5) Adjust at three mode (Cool, Medium, Warm)

- When R Gain is fixed at 192

: Control G Gain and B Gain by reducing them from 192.

- When B Gain is fixed at 192,

: Control R Gain and G Gain by reducing them from 192.

- When G Gain is fixed to 192,

: Control R Gain and B Gain by reducing them from 192.

Fix one of three Gains (R Gain, G Gain, and B Gain) at 192
and control the other two by reducing values from 192 to
prevent it from increasing.

(When RGB Gains are all 192, the module is in full dynamic
range.)

R Gain

G Gain

B Gain

R Cut

G Cut

B Cut

jg

jh

ji

Cool

ja

jb

jc

Mid

RS-232C COMMAND

[CMD ID DATA]

CENTER

(DEFAULT)(Decimal)

jd

je

jf

00

00

00

192

192

192

Warm

Min

Max

(Deci

mal)

64

64

64

Cool

64

64

64

Mid

64

64

64

Warm