White Balance - LG 37LC2D Service Manual

4.2.1 Method of Auto Component Color Balance
1) Input the Component 720p 100% Color Bar(MSPG-925F
model:215, pattern:33) signal into Component.
2) Set the EZ PICTURE to Optimum mode in the Picture
menu.
3) Press the ADJ key on R/C for adjustment.
4) Press the G (Vol. +) key to operate the set, then it becomes
automatically.
5) Auto-RGB OK means the adjustment is completed.
4.3 Adjustment of RGB
[ Required Equipments
l Remote controller for adjustment
l MSPG-925F Pattern Generator
(Which has XGA [1024*768] 60Hz PC Format output with
100% Color Bar Pattern shown in Fig. 3)
4.3.1 Method of Auto RGB Color Balance
1) Input the PC 1024x768 @ 60Hz 100% Color Bar
Pattern(MSPG-925F model:39, pattern:33) into RGB.
(using D-sub cable)
2) Set the EZ PICTURE to Optimum mode in the Picture
menu
3) Press the ADJ key on R/C for adjustment.
4) Press the G (Vol. +) key operate To set , then it becomes
automatically.
5) Auto-RGB OK means adjustment is completed.
[Fig.2]
[Fig.3]
Before White-balance, the AV ADC should be done.
Notice : Before White-balance, change input mode
- Move to VIDEO1 by using Remote controller

5. White Balance

White balance
MSPG925F
=> Caution : - System control RS-232 Host should be "PC"
for adjustment.
- VIDEO ADC(VIDEO1) should be done before
White-balance.
- Press FRONT-AV on control R/C before
Automatic Adjustment
* Test Equipment
Color Analyzer (CA-110)
PC (for communication through RS-232C) => UART Baud
rate : 115200
Pattern Generator (MSPG-925F)
* Target Value (PSM: Dynamic, CSM: Normal)
- Normal(9300K) x : 283±0.003, y : 298±0.003
- Luminance(Y)VIDEO/COMP: 200 Cd/m2 (Typ: 250 Cd/m2)
PC
-> 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
5.1 Manual white Balance (AV)
1) Execute CA-110 Zero Calibration.
2) Execute the SET Heat Run for 30minutes
3) Push the ADJ Button then you can see the OSD
4) Push the ADJ Button again for White Balance mode
5) Adjust High light with R/B Gain/Offset(G Gain fix, G
Offset fix)
[ If B is max, adjust R/G additionally.
- 10 -
VIDEO1
High Model : 201(NTSC-M)
*216Gray Pattern : 78
*NTSC Video
: 250 Cd/m2 (Typ: 300 Cd/m2)