White Balance - LG 32LG30 Service Manual

- HDMI-3 [C/S : 8A07]
EDID Block 0 table =
0 1 2 3 4 5 6
0 00 FF FF FF FF FF FF
10 00 11 01 03 80 73 41
20 09 48 4C AF CF 00 31
30 01 01 01 01 01 01 66
40 36 00 C4 8E 21 00 00
50 58 2C 45 00 C4 8E 21
60 58 1F 64 11 00 0A 20
70 00 4C 47 20 54 56 0A
EDID Block 1 table =
0 1 2 3 4 5 6
0 02 03 18 F1 47 84 05
10 67 03 0C 00 30 00 B8
20 6E 28 55 00 C4 8E 21
30 16 20 58 2C 25 00 C4
40 20 E0 2D 10 10 3E 96
50 D0 8A 20 E0 2D 10 10
60 26 36 80 A0 70 38 1F
70 00 1A 00 00 00 00 00
- RGB [C/S : F6BC]
EDID Block 0 table =
0 1 2 3 4 5 6
0 00 FF FF FF FF FF FF
10 00 11 01 03 18 73 41
20 09 48 4C AF CF 00 31
30 01 01 01 01 01 01 66
40 36 00 C4 8E 21 00 00
50 58 2C 45 00 C4 8E 21
60 58 1F 64 11 00 0A 20
70 00 4C 47 20 54 56 0A
EDID Block 1 table =
0 1 2 3 4 5 6
0 02 03 04 00 0E 1F 00
10 C4 8E 21 00 00 1C F1
20 37 00 C4 8E 21 00 00
30 30 20 25 00 C4 8E 21
40 00 00 00 00 00 00 00
50 00 00 00 00 00 00 00
60 00 00 00 00 00 00 00
70 00 00 00 00 00 00 00
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
7 8 9 A B C D
00 1E 6D 01 00 01 01 01
96 0A CF 74 A3 57 4C B0
40 45 40 61 40 81 80 A9
21 50 B0 51 00 1B 30 40
1E 02 3A 80 18 71 38 2D
00 00 1E 00 00 00 FD 00
20 20 20 20 20 00 00 00
20 20 20 20 20 20 20 01
7 8 9 A B C D
03 02 20 22 10 23 15 07
2D 01 1D 00 72 51 D0 1E
00 00 1E 01 1D 80 18 71
8E 21 00 00 9E 8C 0A D0
00 C4 8E 21 00 00 18 8C
3E 96 00 13 8E 21 00 00
40 30 20 25 00 C4 8E 21
00 00 00 00 00 00 00 00
7 8 9 A B C D
00 1E 6D 01 00 01 01 01
96 0A CF 74 A3 57 4C B0
40 45 40 61 40 81 80 A9
21 50 B0 51 00 1B 30 40
1A 02 3A 80 18 71 38 2D
00 00 1E 00 00 00 FD 00
20 20 20 20 20 00 00 00
20 20 20 20 20 20 20 01
7 8 9 A B C D
80 51 00 1E 30 40 80 37
27 00 A0 51 00 25 30 50
1C 26 36 80 A0 70 38 1F
00 00 0A 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00

5. White Balance

5-1. The Purpose and Principal of Color
E F
Temperature Adjustment
01
(1) Purpose: to reduce the difference in color temperature
23
among modules
40
(2) Principal: A module is in full dynamic range when RGB
70
40 Gain on OSD is 192. To adjust the white balance without
30 causing full dynamic range and full data, fix one of RGB
FC Gains at 192 and control the other two by reducing them
8A from 192.
5-2. Required Equipment
E F
(1) Color Analyzer : CA-210 (NCG : CH 9 / WCG : CH12)
50
(2) Automatic adjuster (with automatic adjustment necessity
20
and the RS-232C communication being possible)
1C
(3) Remote control for adjustment
8A
(4) Video Signal Generator MSPG-925F 720p, 216Gray
0A
(Model : 217, Pattern 78) => Applied only when the inner
18
pattern cannot be used
00
* Use the Color Analyzer with the matrix calibrated by the CS-
07
1000
Probe
E F
01
23
40
70
40
30
Connection Diagram of Automatic Adjustment
FC
F6
5-3. Adjustment command (Protocol)
(1) Protocol
E F
<Command Format>
00
80
40
00
- LEN : Number of Data Byte
00
- CMD : Command
00
00 - VAL : Value of FOS Data
BC - CS : Checksum
- A : Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX}
(2) RS-232C Command(Automatic adjustment)
RS-232C COMMAND
[CMD ID DATA]
wb 00 00
wb 00 10
wb 00 1f
wb 00 20
wb 00 2f
wb 00 ff
- 11 -
Co lo r Analyzer
RS -232C
Pat t ern Generat o r
Signal Source
* Not used when the inner pattern of the TV set is used
LEN CMD VAL
Meaning
White Balance adjustment start.
Start of adjust gain (Inner white pattern)
End of gain adjust
Start of offset adjust(Inner white pattern)
End of offset adjust
End of White Balance adjust(Inner pattern disappeared)
LGE Internal Use Only
RS -232C
Co m p ut er
RS -232C
CS