47LH9000 (CHASSIS:LD91I) - LG TV Service Manual (repair manual). Page 11

· W/B Equipment condition

CA210 : CH 14(LED), 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 10 Lux).

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 15minutes.

- Using ‘no signal’ or ‘full white pattern’ or the others,

check the back light on.

• Auto adjustment Map(RS-232C)

RS-232C COMMAND
[CMD Format]

START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS A STOP
LEN : Number of Data Byte to be send
CMD : Command
VAL : FOS Data
CS : Checksum of sent Data
A : Acknowledge
Ex) [Send : JA_00_DD] / [Ack : A_00_okDDX]

[CMD

ID DATA]

Wb

00

00

White Balance Start

Wb

00

ff

White Balance End

In the SET applied LED module, as to physical characteristics
of LED Module, the sets takes a 120 minutes by aging time to
stabilize a color coordinates. So White Balance Control
equipments get the SET Aging Time from SET and then going
to control the W/B by revise color coordinates in the each time

Cautions) The Time Table of color coordinates by SET Aging Time

** 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.

Dynamic contrast : off
Dynamic color : off
OPC : off
Energy saving mode : off

- After enter Service Mode by pushing “ADJ” key,
- Enter White Balance by pushing “

G

” key at “3. White

Balance”.

- In the SET applied LED module, as to physical

characteristics of LED Module, the sets takes a 120
minutes by aging time to stabilize a color coordinates. So
White Balance Control equipments get the SET Aging Time
from SET and then going to control the W/B by revise color
coordinates in the each time

- 11 -

Cool

11,000k

ºK

X=0.276(±0.002)

Y=0.283(±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)

Full White Pattern

COLOR
ANALYZER
TYPE: CA-210

RS-232C Communication

CA-210

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

H/R Time

Cool

Medium

Warm

(Min)

X

Y

X

Y

X

Y

276

283

285

293

313

329

1

~5

284

301

293

311

321

347

2

6~20

280

288

290

301

320

338

3

21~30

278

285

287

297

316

334

4

31~

276

283

285

293

313

329