42PG30TR-MA (CHASSIS:PP83A) - LG TV Service Manual (repair manual). Page 7

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7. White Balance
Caution: Before White-balance, the AV ADC should be done.
7-1. Notice 
(1) Do the white balance adjustment under the 10LUX
(2) Before enter the white balance adjustment, have to
change AV mode. (not RF, Comp, RGB, HDMI)
(3) Before white balance, press the In-start key 2times and do
the reset like Fig.5
(4) Use the Torino inner pattern(216 gray pattern)  
(5) To enter White-balance mode,press the ADJ key 2times. 
Caution: System control RS-232 Host should be “PC” for
adjustment.
7-2. Test Equipment
(1) PDP: Color Analyzer (CA-100 or CA-210)
Notice: When using the Color Analyzer with PDP,
recommend the CA-100 more than CA-210.
If CA-100 can not available, it is also good to use
the CA-210.
(2) PC (for communication through RS-232C)  ==> UART
Baud rate : 115200
(3) Pattern Generator (MSPG-925FA etc. )
7-3. Color Temperature & Color Coordinates
Setting
When adjusting the Color Temperature of PDP, Color
Analyzer CA-210(Matrix should be corrected through CH10 of
CS-1000) should be used. When CA-210 have used, it don’t
need to fit the CH10.
Adjust the Color Temperature based below adjustment color
coordinates.
Even if CH9 of CA-210 is corrected with Matrix, there may be
many character of Module and Filter.
Therefore Refer to the below Color Coordinates Target.
7-4. Target Value CA-100, CA-210(CH10)
(R/G/B gain and R/G/B offset Default values are different in
according to using module)
7-5. PDP: Target Value of Brightness, Color 
Coordinates, Color Temperature
(1) Desired result (216 Gray)
Brightness : High Light : 60 ± 20 Cd/m2 (42XGA)
Color-Coordinate : 
High Light : Cool : X ; 0.276 ±0.002 ,Y ; 0.283 ±0.002
Warm : X ; 0.313 ±0.002,Y ; 0.329 ±0.002
Color Temperature : 11,000K±500K(Cool), 
6,500K ±500K(Warm)
(2) Desired result for high altitude (216 Gray)
Brightness  : High Light : 50 ± 20 Cd/m2 (80% of non-high
altitude)
Color-Coordinate :
High Light : Cool : X ; 0.276 ±0.002, Y : 283±0.002
Normal : X ; 0.313 ±0.002,Y ; 0.329 ±0.002
Color Temperature : 11,000K±500K(Cool),  
6,500K ±500K(Warm)
7-6. Manual White Balance (INNER Pattern)
For White Balance, Adjust twice, Cool and Warm
1) Execute CA-100, CA-210(10CH) or CA-100 Zero Calibration.
2) Use Torino inner pattern as below Fig. 6, Supply 216Level
(85 IRE) full screen pattern 
3) Enter the White Balance adjustment mode by pressing the
ADJ key twice(White Balance) on R/C.
4) Stick sensor to center of the screen and select each items
(Red/Green/Blue Gain and Offset) using 
D
/
E
(CH +/-) key
on R/C..
5) Adjust with R / G / B Gain using 
F
/
G
(VOL +/-) key on R/C.
6) Adjust it until color coordination becomes as below. 
7) After All adjustment is completed, Please push “Instop” key.
O
Color Temperature: Cool, Medium, Warm
One of R/G.B Gain should be fixed at 80 and adjust two Gain
Value with decreasing the Default values from 80.
-When R Gain is Fixed at Default value(80)
Adjust G gain and B gain with decreasing Default values
from 80
-When B Gain is Fixed at Default value(80)
Adjust R gain and G gain with decreasing Default values
from 80
-When G Gain is Fixed at Default value(80)
Adjust R gain and B gain with decreasing Default values
from 80
R/G/B Gain and R/G/B Offset Default Value
Red Gain :  80,    Green Gain :  80,     Blue Gain : 80
(Fig. 5)
(Fig. 6)
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