6-3. Method Of Auto Color Balance - LG 50PX4R-ZB Service Manual

5.4. Sequence of Adjustment
(1) DDC data of Analog-RGB
1) Init the data
2) Load the EDID data.(Open File)
[Analog(RGB) : H2_VGA_XGA_RGB(2B52).ANA]
- for VGA,XGA
[Digital(HDMI) : H2_VGA_HDMI(CB50).DVI] - for VGA
[Digital(HDMI) : H2_XGA_HDMI(0F0F).DVI] - for XGA
3) Set the S/W as below.
4) Push the "Write Data & Verify"button. And confirm "Yes".
5) If the writing is finished, you will see the "OK" message.
6. Auto AV(CVBS) Color Balance
6-1. Required
- This AV color balance adjustment should be performed befor
white Balance Adjustment
6-2. Required Equipment
1) Remote controller for adjustment
2) AV Pattern Generator
: 802F Pattern Generator, Master(MSPG-925FA), etc
(Which has PAL Composite Video format output with
standard(1.0 Vpp) Vertical 100% Color Bar Pattern as Fig 7)

6-3. Method of Auto Color Balance

1) Input the PAL Composite Video (Fig7. 100% Color Bar
Pattern) into video input.
2) Set the PSM to Standard mode in Picture menu.
3) Press INSTAR key on R/C for adjustment.
G
4) Press the (Vol. +) key operate to set, then it becomes
automatically.
5) Auto-RGB OK means completed adjustment.
(Fig. 7) Auto AV(CVBS) Color Balance Test Pattern
7. Adjustment of White Balance
7-1. Required Equipment
1) Remote controller for adjustment
2) Color Analyzer (CA-100 or same product)
3) Auto W/B adjustment instrument(only for auto adjustment)
4) AV Pattern Generator
7-2. Connecting diagram of equipment for
measuring (For Auto Adjustment)
216 Level (85 IRE)
RS-232C Serial Communication
(Fig. 8) Connection Diagram of Auto W/B adjustment
W
Auto adjustment Map(RS-232C)
Type
Baud Rate
115200
Index Cmd1 Cmd2
R Gain
G Gain
Protocol
B Gain
Setting
R Offset
G Offset
B Offset
7-3. Adjustment of White Balance
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.
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
INSTART 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.
- 12 -
COLOR
ANALYZER
TYPE ; CA-100
CVBS
signal
input
M STG- 5 2 0 0
M SPG-
MF-056A/ MF-056B/ MF-056C
Data bit Stop bit
8 1
Data Min Value
j a 00(00)
j b 00(00)
j c 00(00)
j d 00(00)
j e 00(00)
j f 00(00)
D
925
Parity
NONE
Max Value
255(FF)
255(FF)
255(FF)
255(FF)
255(FF)
255(FF)
/ E (CH +/-) key