White Balance Adjustment - LG 55LM860V Service Manual

# HDMI 3(C/S : 9D 9A)
EDID Block 0, Bytes 0-127 [00H-7FH]
0 1 2 3 4 5
00 00 FF FF FF FF FF
10 01 16 01 03 80 A0
20 0F 50 54 A1 08 00
30 01 01 01 01 01 01
40 45 00 A0 5A 00 00
50 40 70 36 00 A0 5A
60 3F 1F 52 10 00 0A
70 00 4C 47 20 54 56
EDID Block 1, Bytes 128-255 [80H-FFH
0 1 2 3 4 5
00 02 03 37 F1 4E 10
10 22 15 01 26 15 07
20 B8 2D 20 C0 0E 01
30 10 28 10 E3 05 03
40 2C 45 00 A0 5A 00
50 20 58 2C 25 00 A0
60 D0 1E 20 6E 28 55
70 00 00 00 00 00 00
# HDMI 4(C/S : 9D 8A)
EDID Block 0, Bytes 0-127 [00H-7FH]
0 1 2 3 4 5
00 00 FF FF FF FF FF
10 01 16 01 03 80 A0
20 0F 50 54 A1 08 00
30 01 01 01 01 01 01
40 45 00 A0 5A 00 00
50 40 70 36 00 A0 5A
60 3F 1F 52 10 00 0A
70 00 4C 47 20 54 56
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5
00 02 03 37 F1 4E 10
10 22 15 01 26 15 07
20 B8 2D 20 C0 0E 01
30 10 28 10 E3 05 03
40 2C 45 00 A0 5A 00
50 20 58 2C 25 00 A0
60 D0 1E 20 6E 28 55
70 00 00 00 00 00 00
# RGB(C/S : 97)
0 1 2 3 4 5
00 00 FF FF FF FF FF
10 01 16 01 03 68 A0
20 0F 50 54 A1 08 00
30 01 01 01 01 01 01
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
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
6 7 8 9 A B C D
FF 00 1E 6D 01 00 01 01
5A 78 0A EE 91 A3 54 4C
31 40 45 40 61 40 71 40
02 3A 80 18 71 38 2D 40
00 1E 66 21 50 B0 51 00
00 00 00 1E 00 00 00 FD
20 20 20 20 20 20 00 00
0A 20 20 20 20 20 20 20
6 7 8 9 A B C D
9F 04 13 05 14 03 02 12
50 09 57 07 78 03 0C 00
4F 3F FC 08 10 18 10 06
01 02 3A 80 18 71 38 2D
00 00 1E 01 1D 80 18 71
5A 00 00 00 9E 01 1D 00
00 A0 5A 00 00 00 1E 00
00 00 00 00 00 00 00 00
6 7 8 9 A B C D
FF 00 1E 6D 01 00 01 01
5A 78 0A EE 91 A3 54 4C
31 40 45 40 61 40 71 40
02 3A 80 18 71 38 2D 40
00 1E 66 21 50 B0 51 00
00 00 00 1E 00 00 00 FD
20 20 20 20 20 20 00 00
0A 20 20 20 20 20 20 20
6 7 8 9 A B C D
9F 04 13 05 14 03 02 12
50 09 57 07 78 03 0C 00
4F 3F FC 08 10 18 10 06
01 02 3A 80 18 71 38 2D
00 00 1E 01 1D 80 18 71
5A 00 00 00 9E 01 1D 00
00 A0 5A 00 00 00 1E 00
00 00 00 00 00 00 00 00
6 7 8 9 A B C D
FF 00 1E 6D 01 00 01 01
5A 78 0A EE 91 A3 54 4C
31 40 45 40 61 40 71 40
02 3A 80 18 71 38 2D 40
00 1E 66 21 50 B0 51 00
00 00 00 1E 00 00 00 FD
20 20 20 20 20 20 00 00
0A 20 20 20 20 20 20 20

4.2. White Balance Adjustment

4.2.1. Overview
E F ▪ W/B adj. Objective & How-it-works
01 01 (1) Objective: To reduce each Panel's W/B deviation
99 26 (2) How-it-works : When R/G/B gain in the OSD is at 192, it
81 80
means the panel is at its Full Dynamic Range. In order to
58 2C
prevent saturation of Full Dynamic range and data, one
1B 30
of R/G/B is fixed at 192, and the other two is lowered to
00 39
find the desired value.
00 FC
(3) Adjustment condition : normal temperature
01 43
1) Surrounding Temperature : 25 °C ± 5 °C
2) Warm-up time: About 5 Min
3) Surrounding Humidity : 20 % ~ 80 %
E F
20 21
4.2.2. Equipment
30 00
(1) Color Analyzer: CA-210 (LED Module : CH 14)
10 16
(2) Adjustment Computer(During auto adj., RS-232C protocol
40 58
is needed)
1C 16
(3) Adjustment Remote control
72 51
(4) Video Signal Generator MSPG-925F 720p/216-Gray
00 00
(Model: 217, Pattern: 78)
00 F1
-> Only when internal pattern is not available
▪ Color Analyzer Matrix should be calibrated using CS-1000.
4.2.3. Equipment connection MAP
E F
01 01
99 26
Probe
81 80
58 2C
1B 30
00 39
00 FC
01 43
4.2.4. Adj. Command (Protocol)
E F
<Command Format>
20 21
START 6E A 50 A LEN A 03 A
40 00
10 16
- LEN: Number of Data Byte to be sent
40 58
- CMD: Command
1C 16
- VAL: FOS Data value
72 51
- CS: Checksum of sent data
00 00
- A: Acknowledge
00 E1
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
▪ RS-232C Command used during auto-adjustment.
E F
RS-232C COMMAND
01 01
[CMD ID
99 26
wb 00
81 80
wb 00
58 2C
wb 00
1B 30
00 3A
wb 00
00 FC
wb 00
00 5C
wb 00
- 16 -
Co lo r Analyzer
Co m p ut er
RS -232C
Pat t ern Generat o r
Signal Source
* If TV internal pattern is used, not needed
CMD A 00 A VAL
Explantion
DATA]
00 Begin White Balance adjustment
10 Gain adjustment(internal white pattern)
1f Gain adjustment completed
20 Offset adjustment(internal white pattern)
2f Offset adjustment completed
End White Balance adjustment
ff
(internal pattern disappears )
LGE Internal Use Only
RS -232C
RS -232C
A CS STOP