37LG50 (CHASSIS:LA84D) - LG TV Service Manual (repair manual). Page 10

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(2) Confirmation
1) We confirm whether “0xBF(480i)/0xC8(1080i)” address
of EEPROM “0xA2” is “0xAA” or not.
2) If “0xBF(480i)/0xC8(1080i)” address of EEPROM “0xA2”
isn’t “0xAA”, we adjust once more.
3) We can confirm the ADC values from “0xB ~0xBE(480i)/
0xC2~(1080i)” addresses in a page “0xA2”.
* Manual ADC Confirmation using Service Remocon. After
enter Service Mode by pushing “INSTART” key.

4. EDID (The Extended Display 
Identification Data)/ DDC(Display
Data Channel) Download
4-1. Summary 
It is established in VESA, for communication between PC and
Monitor without order from user for building user condition. It
helps to make easily use realize "Plug and Play" function.
4-2. Required Test Equipment
1) PC (with S/W : EDID Data write & Read)
2) EDID DOWNLOAD JIG
3) HDMI Cable, D-Sub cable
4-3. Connection diagram(Setting of D/L device)
4-4. How to download
(1) Configure the download environment as shown at the
adjustment wiring diagram and turn on the PC.
(2) Execute the DDC program. (EDID Data Write & Read)
(3) Go to Model -> Open, and select the EDID data of the
desired model.
(4) Check the item to download from the <Test> item
1) HDMI & RGB: Check Digital & Analog
2) (Only)HDMI: Check Digital only
(5) Press ESC(Cancel Mode) -> F8(Auto Mode). (Set Auto
Detecting)
(6) Connect the desired signal cable to the set.
(7) Make sure that the popup "Proceed to write?" is displayed.
(8) Press the Enter key or the space key to download.
(9) After downloading, check the OK message and disconnect
the connected cable.
4-5. EDID DATA
* It is possible to download on only POWER ON MODE.
- HDMI-1 [C/S : 8A27]
EDID Block 0 table =
EDID Block 1 table =
- HDMI-2 [C/S : 8A17]
EDID Block 0 table =
EDID Block 1 table =
- 10 -
MODEL : 22LS4D_UA_UA/LPL_LM220WT7
S/W VER : 3.00.1
UTT : 6                    
ADC CAL.
RGB : OK
YPbPr(SD) : OK
YPbPr(HD) : OK
1. SYNC LEVEL
2. DTV SNR
3. SCREEN MUTE              
4. POWER OFF HISTORY
0. STEREO DETECT
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00
FF
FF
FF
FF
FF
FF
00
1E
6D
01
00
01
01
01
01
10
00
11
01
03
80
73
41
96
0A
CF
74
A3
57
4C
B0
23
20
09
48
4C
AF
CF
00
31
40
45
40
61
40
81
80
A9
40
30
01
01
01
01
01
01
66
21
50
B0
51
00
1B
30
40
70
40
36
00
C4
8E
21
00
00
1E
02
3A
80
18
71
38
2D
40
50
58
2C
45
00
C4
8E
21
00
00
1E
00
00
00
FD
00
30
60
58
1F
64
11
00
0A
20
20
20
20
20
20
00
00
00
FC
70
00
4C
47
20
54
56
0A
20
20
20
20
20
20
20
01
8A
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
18
F1
47
84
05
03
02
20
22
10
23
15
07
50
10
67
03
0C
00
10
00
B8
2D
01
1D
00
72
51
D0
1E
20
20
6E
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
30
16
20
58
2C
25
00
C4
8E
21
00
00
9E
8C
0A
D0
8A
40
20
E0
2D
10
10
3E
96
00
C4
8E
21
00
00
18
8C
0A
50
D0
8A
20
E0
2D
10
10
3E
96
00
13
8E
21
00
00
18
60
26
36
80
A0
70
38
1F
40
30
20
25
00
C4
8E
21
00
70
00
1A
00
00
00
00
00
00
00
00
00
00
00
00
00
27
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00
FF
FF
FF
FF
FF
FF
00
1E
6D
01
00
01
01
01
01
10
00
11
01
03
80
73
41
96
0A
CF
74
A3
57
4C
B0
23
20
09
48
4C
AF
CF
00
31
40
45
40
61
40
81
80
A9
40
30
01
01
01
01
01
01
66
21
50
B0
51
00
1B
30
40
70
40
36
00
C4
8E
21
00
00
1E
02
3A
80
18
71
38
2D
40
50
58
2C
45
00
C4
8E
21
00
00
1E
00
00
00
FD
00
30
60
58
1F
64
11
00
0A
20
20
20
20
20
20
00
00
00
FC
70
00
4C
47
20
54
56
0A
20
20
20
20
20
20
20
01
8A
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
18
F1
47
84
05
03
02
20
22
10
23
15
07
50
10
67
03
0C
00
20
00
B8
2D
01
1D
00
72
51
D0
1E
20
20
6E
28
55
00
C4
8E
21
00
00
1E
01
1D
80
18
71
1C
30
16
20
58
2C
25
00
C4
8E
21
00
00
9E
8C
0A
D0
8A
40
20
E0
2D
10
10
3E
96
00
C4
8E
21
00
00
18
8C
0A
50
D0
8A
20
E0
2D
10
10
3E
96
00
13
8E
21
00
00
18
60
26
36
80
A0
70
38
1F
40
30
20
25
00
C4
8E
21
00
70
00
1A
00
00
00
00
00
00
00
00
00
00
00
00
00
17
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