LG 42LC51 Service Manual page 16

(3) DDC adjustment support command set
Adjustment CMD(HEX)
Aging On/Off F3
Input select F4
R GAIN 16
G GAIN 18
B GAI 1A
6.3. Adjustment of White Balance
(For Manual adjustment)
- Operate the zero-calibration of the CA-110 or CA-210, then
stick sensor to LCD module when you adjust.
- For manual adjustment, it is also possible by the following
sequence
1) Select RF no signal by pressing "POWER ON" key on
remote control for adjustment then operate heat run
more than 15 minutes.
(If not executed this step, the condition for W/B will be
differ. The W/B condition is Picture Mode : Standard
(MA : Optimum), Color Temp : Normal. )
2) Changing to the av mode by pushing the input or front av
key.
3) Display the internal pattern of the VCT-Pro IC by
pushing the IN-START.
4) Stick sensor to center of the screen and select each
items (Red/Green/Blue Gain and Offset) using
(CH+/-) key on R/C.
5) Adjust R Gain / B Gain using
6) Adjust it until color coordination becomes as below.
(Initially, R/G/B gain and R/G/B offset values are fixed
as below)
Red Gain : 80 , Green Gain : 80 ,
Red Offset : 80, Green Offset : 80 , Blue Offset : 80
* Target Value [Picture Mode : Standard (ZA, TA),
Optimum(MA), Color Temp: Normal]
-Normal (9300K) x ; 0.283±0.003 y ; 0.298±0.003
-Luminance(Y) AV : upper 150 cd/m
=> Reference Value(Automatically fixed)
- Cool(11000K): x:0.274±0.003, y: 0.286±0.003
- Warm(7200K) : x:0.303±0.003, y: 0.319±0.003
Internal pattern of VCT-PRO
<Pattern for Adjustment of White Balance>
7) When adjustment is completed, Exit adjustment mode
using EXIT key on R/C
ADR
00 FF : ON / OO : OFF
00 0x10 : TV
0x20 : AV1(SCART1)
0x21 : AV2(SCART2)
0x23 : AV3(Side AV)
0x40 : Component1
0x50 : RGB DTV
0x60 : RGB PC
0x90 : HDMI1 DTV
00
00 GAIN adjustment
00
F G
/ (VOL+/-) key on R/C.
Blue Gain : 80
(Typ : 350 cd/m
2
6.4 Input the Shipping Option Data
1) Push the ADJ key in a Adjust Remote control.
2) Input the Option Number that was specified in the BOM,
into the Shipping area.
3) The work is finished, Push
7. Default Value in Adjustment mode
(Default values maybe modified the module condition)
7.1. White Balance
8. Internal press test
Item
Dielectric Voltage (AC <-> FG)
Dielectric Voltage (Without FG)
D E
/
9. Sound spec.
Item
Audio Practical Max Output, L(Mono)/R
≥)
2
- 16 -
A
Key.
<Default Value on OSD>
Value Unit
1.5 kV At 100mA for 1sec (Line)
At 100mA for 1min (OQC)
3 kV At 100mA for 1sec (Line)
At 100mA for 1min (OQC)
Min Typ Max
6 7
Remark
Unit Remark
9 W LCD