32LB9D (CHASSIS:LT73A) - LG TV Service Manual (repair manual). Page 14

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Before adjusting White-balance , the AV ADC
should be done
7. White Balance
*Test Equipment
8 Color Analyzer (CA-210/CH.9)
=> 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..
* Color temperature standards according to CSM and Module 
CSM
Plasma
LCD
Cool
11,000k         11,000k
Medium
9,300k           9,300k
Warm
6,500k           6,500k
* White balance adjustment coordinate and color temperature
8 PC (for communication through RS-232C) => UART
Baud rate : 115200 bps
8 l Luminance Y AV : upper 200 cd/ß≥ (Typ : 350 cd/m
2
) =>
Applying to Cool
- Connecting picture of  the measuring instrument (On
Automatic control )
Inside PATTERN is used when W/B is controlled. Connect
to auto controller or push control R/C IN-START => Enter
the mode of White-Balance, the pattern will come out.
* 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).
2.1 In case of PDP: Measure and adjust after sticking the Color
Analyzer (CA-100+, CA-210) to the side of the module.
2.2 In case of LCD: 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°).
2.3 Aging time  
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 15 minutes.
- In case of PDP, keep white pattern using inside pattern.
- In case of LCD, using ‘no signal’ or ‘full white pattern’ or the
others, check the back light on
Communication
Type
LT73A
Protocol
Baud Rate
Data bit
Stop bit
Parity
115200
8
1
None
Protocol
Index
Cmd 1 Cmd 2 Data Min Value Max Value
Setting
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)
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)
Inside Pattern signal
w
b
00
W/B Adjust start
Inside Pattern signal
w
b
10
Inside Pattern
Inside Pattern signal
w
b
ff
W/B Adjust end
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