26LH200H (CHASSIS:LD01X) - LG TV Service Manual (repair manual). Page 12

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** 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 “

G

” key at “6. White

Balance”.

* After done all adjustments, Press “In-start” key 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”.

• 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 Service main Assembly, EDID have to be downloaded to

Insert Process in advance.

• 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 Service main Assembly, EDID have to be downloaded to

Insert Process in advance.

1) All Data : HEXA Value
2) Changeable Data :

*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***: Year : Controlled
****: Check sum

• After enter Service Mode by pushing “ADJ” key,
• Enter EDID D/L mode.
• Enter “START” by pushing “OK” key.

[Caution]
Never connect HDMI & D-sub Cable when EDID downloaded.

* Edid data and Model option download (RS232)

* Caution

1) Use the proper signal cable for EDID Download.

- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists

2) Never connect HDMI & D-sub Cable at the same time.
3) Use the proper cables below for EDID Writing.
4) Download HDMI1, HDMI2, separately because HDMI1 is

different from HDMI2.

White Balance

Color Temp.

R-Gain

G-Gain

B-Gain

R-Cut

G-Cut

B-Cut

Test-Pattern.

Reset

Cool

172

172

192

64

64

64

ON

To set

HDMI1
HDMI2
HDMI3
RGB

NG
NG
NG
NG

HDMI1
HDMI2
HDMI3
RGB

OK
OK
OK
OK

Item CMD1 CMD2 Data0

Download

A

A

0

0

When transfer the ‘Mode In’,

‘Mode In’

Carry the command.

Download

A

E

00 10 Automatically Download

(The use of a internal pattern)

Item

Manufacturer ID

Version

Revision

Condition

GSM

Digital : 1

Digital : 3

Data(Hex)

1E6D

01

03

D-sub to D-sub

DVI-D to HDMI or HDMI to HDMI

For HDMI EDID

For Analog EDID

RS-232C COMMAND MIN

CENTER

MAX

[CMD ID DATA]

(DEFAULT)

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