White Balance Adjustment - LG 55LW9500 Service Manual

4.2. EDID(The Extended Display Identification
Data)/DDC(Display Data Channel) download
(1) Overview
It is a VESA regulation. A PC or a MNT will display an
optimal resolution through information sharing without any
necessity of user input. It is a realization of "Plug and Play".
(2) Equipment
- Adjust remote control
- Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
(3)Download method
1) Press Adjust key on the Adjustment remote control then
select "10.EDID D/L", By pressing Enter key, enter EDID
D/L menu.
2) Select [Start] button by pressing Enter key, HDMI1/
HDMI2/ HDMI3/ HDMI4/ RGB are Writing and display
OK or NG
For Analog EDID
D-sub to D-sub
(4) EDID DATA
RGB
A
0 1 2 3 4 5
0 00 FF FF FF FF FF
10 01 15 01 03 68 10
20 0F 50 54 A1 08 00
30 90 40 A9 C0 B3 00
40 45 00 A0 5A 00 00
50 40 70 36 00 A0 5A
60 3E 1E 53 10 00 0A
70 00 4C 47 20 54 56
HDMI(FHD 3D, HDMI 1.4a, 3D)
A
0 1 2 3 4 5
0 00 FF FF FF FF FF
10 01 14 01 03 80 10
20 0F 50 54 A1 08 00
30 01 01 01 01 01 01
40 45 00 A0 5A 00 00
50 6E 28 55 00 A0 5A
60 3E 1E 53 10 00 0A
70 00 4C 47 20 54 56
80 02 03 37 F1 4E 10
90 22 15 01 26 15 07
A0 B8 2D 20 C0 0E 01
B0 10 38 10 E3 05 03
C0 2C 25 00 A0 5A 00
D0 20 6E 88 55 00 A0
E0 38 2D 40 58 2C 45
F0 00 00 00 00 00 00
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
For HDMI EDID
DVI-D to HDMI or HDMI to HDMI
6 7 8 9 A B C
FF 00 1E 6D 01 00 01
09 78 0A EE 91 A3 54
71 40 81 C0 81 00 81
02 3A 80 18 71 38 2D
00 1E 66 21 50 B0 51
00 00 00 1E 00 00 00
20 20 20 20 20 20 00
0A 20 20 20 20 20 20
6 7 8 9 A B C
FF 00 1E 6D 01 00 01
09 78 0A EE 91 A3 54
71 4F 81 01 01 01 01
02 3A 80 18 71 38 2D
00 1E 01 1D 00 72 51
00 00 00 1E 00 00 00
20 20 20 20 20 20 00
0A 20 20 20 20 20 20
1F 84 13 05 14 03 02
50 09 57 07 78 03 0C
40 0A 3C 08 10 18 10
01 01 1D 80 18 71 1C
00 00 9E 01 1D 00 80
5A 00 00 00 1A 02 3A
00 A0 5A 00 00 00 1E
00 00 00 00 00 00 00
* Physical Add & Checksum(HDMI1/2/3/4)
INPURT
HDMI 1
HDMI 2
HDMI 3
HDMI 4

4.3. White Balance Adjustment

4.3.1 Overview
(1) W/B adj. Objective & How-it-works
(2) Objective: To reduce each Panel's W/B deviation
(3) How-it-works : When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range. In order to
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192, and the other two is lowered to find
the desired value.
(4) Adjustment condition : normal temperature
1) Surrounding Temperature : 25 ºC ± 5 ºC
2) Warm-up time: About 5 Min
3) Surrounding Humidity : 20 % ~ 80 %
4.3.2 Equipment
1) Color Analyzer: CA-210 (LED Module : CH 14)
2) Adjustment Computer(During auto adj., RS-232C protocol is
needed)
3) Adjust Remote control
4) Video Signal Generator MSPG-925F 720p/216-Gray
(Model: 217, Pattern: 78)
-> Only when internal pattern is not available
Color Analyzer Matrix should be calibrated using CS-1000
A
D E F
4.3.3. Equipment connection MAP
01 01 01
4C 99 26
80 95 00
40 58 2C
00 1B 30
FD 00 3A
00 00 FC
20 00 98
4.3.4. Adj. Command (Protocol)
<Command Format>
D E F
01 01 01
4C 99 26
01 01 01 - LEN: Number of Data Byte to be sent
40 58 2C
- CMD: Command
D0 1E 20 - VAL: FOS Data value
FD 00 3A
- CS: Checksum of sent data
00 00 FC
- A: Acknowledge
20 01 D7
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
12 20 21
00 XX XX
98 10 58
16 20 58
51 D0 1A
80 18 71
00 00 00
00 00 XX
- 11 -
9Eh/9Fh(Physical Add)
10 00
20 00
30 00
40 00
Co lo r Analyzer
Probe
RS -232C
Pat t ern Generat o r
Signal Source
* If TV internal pattern is used, not needed
LEN CMD
FFh(Checksum)
CB
BB
AB
9B
RS -232C
Co m p ut er
RS -232C
CS
VAL
LGE Internal Use Only