37SL80YD-AA (CHASSIS:LB91T) - LG TV Service Manual (repair manual). Page 12

• W/B Equipment condition

CA210 : CH 9, Test signal : Inner pattern (85IRE)

• Above 5 minutes H/run in the inner pattern. (Power on” key

of adjust remote control)

- 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 15 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

** 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 “3. White

Balance”.

* 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.

* Push the “IN STOP KEY” after completing the function inspection.

• 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.

• 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.

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

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

- 12 -

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

RS-232C COMMAND  

MIN

CENTER           

MAX

[CMD ID DATA]

(DEFAULT)

Cool Mid Warm

Cool Mid Warm

R 

Gain

jg  Ja  jd  00 172 192 192 255

G 

Gain

jh  Jb  je  00 172 192 192 255

B 

Gain  ji 

Jc 

jf

00 192 192 172 255

R 

Cut 

64 64 64 

128

G 

Cut 

64 64 64 

128

B 

Cut 

64 64 64 

128

Cool 13,000k

ºK

X=0.269(±0.002)

Y=0.273(±0.002)

<Test Signal>

Medium 9,300k

ºK

X=0.285(±0.002)

Inner pattern

Y=0.293(±0.002)

(216gray,85IRE)

Warm

6,500k

ºK

X=0.313(±0.002)

Y=0.329(±0.002)