LG 50PC1DA Service Manual page 15

W
Auto adjustment Map(RS-232C)
Type
Baud Rate Data bit
115200 8
Index Cmd1 Cmd2
R Gain j
G Gain j
Protocol
B Gain j
Setting
R Offset j
G Offset j
B Offset j
9-3. Adjustment of White Balance
(For Manual adjustment)
O Operate the zero-calibration of the CA-100, then stick
sensor to PDP module surface when you adjust.
O 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) As below Fig.9, Supply 216Level (85 IRE) full screen
pattern to Video input.
(Input 50Hz, PD61A/C all model : AV4 Input)
216 Level (85 IRE) 216 Level (85 IRE)
(Fig. 9) Pattern for Adjustment of White Balance
3) Press the TV/AV KEY on R/C for converting input mode.
4) Set the PSM to Standard mode in Picture menu.
5) Enter the White Balance adjustment mode by pressing the
IN-START key twice(White Balance) on R/C.
6) Stick sensor to center of the screen and select each items
(Red/Green/Blue Gain and Offset) using
on R/C.
7) Adjust Only High Light with R Gain/ B Gain using
(VOL+/-) key on R/C.
8) 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 : 82, Green Gain : 80,
Red Offset : 7F, Green Offset : 7E, Blue Offset : 82)
[PD61A]-VGA 42", XGA 42",50" Module.
Brightness :
Color-Coordinate : High Light :
Color Temperature : 9,300°K ± 500°K.
9) When adjustment is completed, Exit adjustment mode using
EXIT key on R/C.
PD61A/C
Stop bit
1
Data Min Value
a 00(00)
b
00(00)
c 00(00)
d 00(00)
e
00(00)
f
00(00)
D E
/
Blue Gain : 86
High Light : 60 ± 20cd/m2
X : 0.285 ± 0.003
Y : 0.290 ± 0.003
10. Auto Component Color Balance
10-1. Requirement
Parity
- It is very import to use correct adjustment pattern like fig.10.
NONE
Within the pattern, color sequence should be aligned.
V
: W-Y-C-G-M-R-BLUE-BLACK.
Max Value
(If color sequence is reversed(Black -> ... > White), reverse
255(FF)
the pattern with REV key, when using Master pattern.
generator like MSPG-925)
255(FF)
If Minimum Black Level and/or Maximum White Level is not
V
255(FF)
correct, select 100% Color Bar Pattern.
255(FF)
10-2. Required Test Equipment
255(FF)
1) Remote controller for adjustment
255(FF)
(Fig. 10) Auto Component Color Balance Test Pattern
2) 802F Pattern Generator
(Which has 720p Ypbpr output with Standard(0.7Vpp)
Vertical 100% Color Bar Pattern as Fig.10)
10-3. Method of auto component color balance
1) Input the Component 720p 100% Color Bar signal into
Component1 or Component2.
2) Set the PSM to Standard mode in Picture menu.
3) Press IN-START key on R/C for adjustment.
4) Press the
automatically.
5) Auto-RGB OK means complete adjustment
11. Auto RGB Color Balance
11-1. Requirement
- It is very import to use correct adjustment pattern like fig.11
(CH +/-) key
Within the pattern, color sequence should be aligned.
V
: W-Y-C-G-M-R-BLUE-BLACK.
F G
/
(If color sequence is reversed(Black -> ... > White), reverse
the pattern with REV key, when using Master pattern
generator like MSPG-925)
If Minimum Black Level and/or Maximum White Level is not
V
correct, Do select 100% Color Bar Pattern.
11-2. Required Test Equipment
1) Remote controller for adjustment.
2) 802F Pattern Generator, Master(MSPG-925FA), etc.
(Which has XGA 60Hz PC Format output with standard
(0.7Vpp) 100% Color Bar Pattern as Fig.11)
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G (Vol. +) key operate to set, then it becomes