37LG7500 (CHASSIS:LD86F) - LG TV Service Manual (repair manual). Page 13

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* Auto adjustment Map (RS-232C)

* 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 (CA-210) 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.

(set:RS-233 Host:PC, Baud Rate:115200bps, Download:Cortez)

: Inside pattern is used when white balance is controlled.
Connect as below figure and click the start button on W/B
execution program. W/B is automatically processing Cool ->
Medium -> Warm in order. 
When W/B is completed, you can see ‘OK’ on PC monitor.

- One of R Gain / G Gain / B Gain should be kept on 80, and

others  are controlled lowering from 80 

1) Press ‘power on’ of the control R/C, set heat run to white by

pressing 

G

, and heat run over 15 minutes. (Set : RS-233

Host : PC, Baud Rate : 115200bps, Download : Cortez)

2) Zero Calibrate CA-210, and when controlling, stick the

sensor to the center of LCD module surface.

3) Double click In-start key on Controlling R/C and get in ‘white

balance’.

4) Set test-pattern on and display inside pattern. Control is

carried out on three color temperature, COOL, MEDIUM,
WARM. (Control is carried out three times,)

5) When the R/G/B GAIN is 80 on OSD, it is the FULL

DYNAMIC Range of the Module. In order to control white
balance without the saturation of FULL DYNAMIC Range
and DATA, one of R Gain / G Gain / B Gain should be kept
on 80, and other two is controlled lowering from 80.

* Color Temperature: Cool, Medium, Warm

1) When R GAIN is set to 80

- Control G GAIN and B GAIN by lowering from 80. 

2) When B GAIN is set to 80

- Control R GAIN and G GAIN by lowering from 80.

3) When G GAIN is set to 80

- Control R GAIN and B GAIN by lowering from 80.

One of R Gain / G Gain / B Gain should be kept on 80,
and adjust other two lower than 80.
(When R/G/B GAIN are all 80, it is the FULL DYNAMIC
Range of Module)

(1) Setting up like bottom figure (After setting white balance,

this is set)
(Setting : Press IN-START key in the Adjust remote control.
Select “System Control 2” by using 

D

/

E

(CH+/-) key, and

press 

A

(ENTER). Using Adjust remote control, RS-232

Host & Baud Rate & Download value change RS-232
Host:PC, Baud Rate:115200bps, Download:Cortez)

(2) Bar-code scanning

1) Push the menu button in DTV mode. 

Select the SETUP -> Diagnostics -> To set

2) Check the Serial Number.

Type

LD86F

Baud Rate

Data bit

Stop bit

Parity

115200

8

1

None

Index

Cmd 1 Cmd 2 Data Min Value

Max Value

R-Gain_Normal

j

a

00(00)

128(80)

G-Gain_Normal

j

b

00(00)

128(80)

B-Gain_Normal

j

c

00(00)

128(80)

R-Gain_Warm

j

d

00(00)

128(80)

G-Gain_Warm

j

e

00(00)

128(80)

B-Gain_Warm

j

f

00(00)

128(80)

R-Gain_Cool

j

g

00(00)

128(80)

G-Gain_Cool

j

h

00(00)

128(80)

B-Gain_Cool

j

i

00(00)

128(80)

R-Offset_Normal

l

j

00(00)

128(80)

G-Offset_Normal

l

k

00(00)

128(80)

B-Offset_Normal

l

l

00(00)

128(80)

R-Offset_Warm

l

m

00(00)

128(80)

G-Offset_Warm

l

n

00(00)

128(80)

B-Offset_Warm

l

o

00(00)

128(80)

R-Offset_Cool

l

p

00(00)

128(80)

G-Offset_Cool

l

q

00(00)

128(80)

B-Offset_Cool

l

r

00(00)

128(80)

w

b

00

Starting W/B ADJ

w

b

10

Using internal Pattern

w

b

ff

Ending W/B ADJ