LG 37LC50CB Service Manual page 16

7.1.3 Data of EDID for 32/37/42LC5DC-UA,32LX5DC-UA
7.1.3.1 DDC data of Analog-RGB
7.1.3.2 DDC data of Digital-HDMI1
7.1.3.3 DDC data of Digital-HDMI2
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Before adjustment of white balance, should be executed the
'color balance adjustment'
8. Adjustment of White Balance
8.1 Required Equipment
- Remote controller for adjustment
- Color Analyzer (CA-210 or same product )
- Auto W/B adjustment instrument(only for Auto adjustment)
- Use inner(SELF) Pattern
8.2 Adjustment of White Balance (For Manual adjustment)
Set TV input to RF.
Operate the zero-calibration of the CA-210, Ch.9.
Then stick sensor to LCD module surface when you adjust.
For manual adjustment, it is also possible by the following
sequence.
1) Select white pattern of heat-run mode by pressing power
on key on remote control for adjustment then operate
heat run more than 15 minutes.
2) Enter the White Balance adjustment mode by pressing
the INSTART key twice (White Balance) on R/C.
3) Stick sensor to center of the screen and select each
items using
4) Adjust G Gain / B Gain using
5) Adjust it until color coordination becomes as below.
- By controlling G, B GAIN, adjust X, Y target value.
- R Gain fixed at cool, normal, warm mode.
- But, Control the R GAIN, unless it has correct value
(Initially, R/G/B gain and R/G/B offset values are fixed as below.)
Red Gain: 80h Green Gain: 80h Blue Gain: 80h
Red Offset: 80h Green Offset: 80h Blue Offset: 80h
*Target value
X
Cool 0.276 ± 0.002
Normal 0.285 ± 0.002
Warm 0.313 ± 0.002
6) When adjustment is completed, Exit adjustment mode
using EXIT key on R/C.
- 16 -
D / E (CH +/-) key on R/C.
F / G (VOL +/-) key on R/C.
Y
0.283 ± 0.002
0.293 ± 0.002
0.329 ± 0.002
LGE Internal Use Only
Temp (∆uv)
11000k (0.000)
9300k (0.000)
6500k (0.003)