Read LG 42LT760H-TA (CHASSIS:LB3AF) Service Manual online
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3.6.1. Check the method of CI+ Key value
(1) Check the method on Instart menu
(2) Check the method of RS232C Command
1) Into the main ass’y mode(RS232: aa 00 00)
2) Check the key download for transmitted command
(RS232: ci 00 10)
3) Result value
- Normally status for download : OKx
- Abnormally status for download : NGx
3.6.2. Check the method of CI+ key value(RS232)
1) Into the main ass’y mode(RS232: aa 00 00)
2) Check the mothed of CI+ key by command
(RS232: ci 00 20)
3) Result value
i 01 OK 1d1852d21c1ed5dcx
3.7. WIFI MAC ADDRESS CHECK
(1) Using RS232 Command
(2) Check the menu on in-start
4. Manual Adjustment
* ADC adjustment is not needed because of OTP(Auto ADC
adjustment)
4.1. EDID(The Extended Display Identification
Data)/DDC(Display Data Channel) download
4.1.1. 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".
4.1.2. Equipment
- Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
- Adjustment remote control
4.1.3. Download method
(1) Press "ADJ" key on the Adjustment remote control then
select "12.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.
4.1.4. EDID DATA
▪ HDMI_EDID DATA_2D
▪ RGB_EDID
H-freq(kHz)
V-freq.(Hz)
Transmission
[A][I][][Set ID][][20][Cr]
[O][K][X] or [NG]
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
1
0
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
2
0
CI+ Key Value
For Analog
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00
FF
FF
FF
FF
FF
FF
00
1E
6D
ⓐⓓ
ⓑ
0x01
ⓒ
01
03
80
A0
5A
78
0A
EE
91
A3
54
4C
99
26
0x02 0F
50
54
A1
08
00
31
40
45
40
61
40
71
40
81
80
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
A0
5A
00
00
00
1E
66
21
50
B0
51
00
1B
30
0x05 40
70
36
00
A0
5A
00
00
00
1E
00
00
00
FD
00
3A
0x06 3E
1F
53
10
00
0A
20
20
20
20
20
20
ⓓ
0x07
ⓓ
01 ⓔ1
0x00 02
03
26
F1
4E
10
9F
04
13
05
14
03
02
12
20
21
0x01 22
15
01
26
15
07
50
09
57
07
ⓕ
0x02
ⓕ
E3
05
00
00
00
1D
80
18
71
1C
16
20
58
2C
0x03 25
00
A0
5A
00
00
00
9E
01
1D
00
80
51
D0
1A
20
0x04 6E
88
55
00
A0
5A
00
00
00
1A
02
3A
80
18
71
38
0x05 2D
40
58
2C
45
00
A0
5A
00
00
00
1E
66
21
50
B0
0x06 51
00
1B
30
40
70
36
00
A0
5A
00
00
00
1E
00
00
0x07 00
00
00
00
00
00
00
00
00
00
00
00
00
00
00 ⓔ2
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00
FF
FF
FF
FF
FF
FF
00
1E
6D
ⓐ
ⓑ
0x01
ⓒ
01
03
68
A0
5A
78
0A
EE
91
A3
54
4C
99
26
0x02 0F
50
54
A1
08
00
31
40
45
40
61
40
71
40
81
80
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
A0
5A
00
00
00
1E
66
21
50
B0
51
00
1B
30
0x05 40
70
36
00
A0
5A
00
00
00
1E
00
00
00
FD
00
3A
0x06 3E
1E
53
10
00
0A
20
20
20
20
20
20
ⓓ
0x07
ⓓ
00 ⓔ3
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