White Balance Adjustment - LG 55X6500-TD Service Manual

(4) EDID DATA
RGB
A
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0 00 FF FF FF FF FF
10 01 14 01 03 68 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
A HDMI
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 20 38 20 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
* Physical Add & Checksum(HDMI1/2/3/4)
INPURT 9Eh/9Fh(Physical Add)
HDMI 1 10
HDMI 2 20
HDMI 3 30
HDMI 4 40

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) Adj. 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) Adj. 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
Copyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
FF 00 1E 6D 01 00 01
09 78 0A EE 91 A3 54 4C
81 80 61 40 45 40 31
02 3A 80 18 71 38 2D
00 1E 01 1D 00 72 51 D0
00 00 00 1E 00 00 00 FD
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 4C
71 4F 81 80 01 01 01
02 3A 80 18 71 38 2D
00 1E 01 1D 00 72 51 D0
00 00 00 1E 00 00 00 FD
20 20 20 20 20 20 00
0A 20 20 20 20 20 20
1F 84 13 05 14 0.3 02
50 09 57 07 78 03 0C
40 0A 3C 08 20 18 20
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
FFh(Checksum)
00 7B
00 6B
00 5B
00 4B
4.3.3. Equipment connection MAP
01 01 01
99 26
40 01 01
40 58 2C
1E 20
00 3A
00 00 FC
4.3.4. Adj. Command (Protocol)
20 00 1D
<Command Format>
- LEN: Number of Data Byte to be sent
D E F
- CMD: Command
01 01 01
- VAL: FOS Data value
99 26
- CS: Checksum of sent data
01 01 01
- A: Acknowledge
40 58 2C
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
1E 20
00 3A
RS-232C Command used during auto-adj.
00 00 FC A
20 01 D7
RS-232C COMMAND
12 20 21
[CMD ID
00 XX XX
wb 00
98 20 58
wb 00
16 20 58
51 D0 1A
wb 00
80 18 71
wb 00
00 00 00
wb 00
00 01 XX
wb 00
Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f -> Gain adj. completed
*(wb 00 20(Start), wb 00 2f(completed)) -> Off-set adj.
wb 00 ff -> End white balance auto-adj.
Adj. Map
A
ITEM
Cool R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Medium R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Warm R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
- 12 -
Probe
RS -232C
Signal Source
* If TV internal pattern is used, not needed
LEN CMD
Explanation
DATA]
00 Begin White Balance adj.
10 Gain adj.(internal white pattern)
1f Gain adj. completed
20 Offset adj.(internal white pattern)
2f Offset adj. completed
ff End White Balance adj.(Internal pattern disappears)
Command Data Range(Hex.) Default(Decimal)
Cmd 1 Cmd 2 Min
j g 00
j h 00
j i 00
j a 00
j b 00
j c 00
j d 00
j e 00
j f 00
Co lo r Analyzer
RS -232C
Co m p ut er
RS -232C
Pat t ern Generat o r
CS
VAL
Max
C0
C0
C0
C0
C0
C0
C0
C0
C0
LGE Internal Use Only