LG 37LV5500 Service Manual page 11

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 Adj. key on the Adj. R/C, 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
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 26 F1 4E 10
90 22 15 01 26 15 07
A0 B8 2D E3 05 03 01
B0 25 00 A0 5A 00 00
C0 6E 88 55 00 A0 5A
D0 2D 40 58 2C 45 00
E0 51 00 1B 30 40 70
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 67 03 0C
01 1D 80 18 71 1C 16
00 9E 01 1D 00 80 51
00 00 00 1A 02 3A 80
A0 5A 00 00 00 1E 66
36 00 A0 5A 00 00 00
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) 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
D E F
01 01 01
4.3.3. Equipment connection MAP
4C 99 26
80 95 00
40 58 2C
00 1B 30
FD 00 3A
00 00 FC
20 00 98
D E F
4.3.4. Adj. Command (Protocol)
01 01 01
<Command Format>
4C 99 26
01 01 01
40 58 2C
D0 1E 20 - LEN: Number of Data Byte to be sent
FD 00 3A
- CMD: Command
00 00 FC
- VAL: FOS Data value
20 01 D7
- CS: Checksum of sent data
12 20 21
- A: Acknowledge
00 XX XX
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
20 58 2C
D0 1A 20
18 71 38
21 50 B0
1E 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)
D9
C9
B9
A9
RS -232C
Co m p ut er
RS -232C
CS
VAL
LGE Internal Use Only