DOWNLOAD LG 47LD920 (CHASSIS:LD01I) Service Manual ↓ Size: 9.42 MB | Pages: 112 in PDF or view online for FREE

Model
47LD920 (CHASSIS:LD01I)
Pages
112
Size
9.42 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
47ld920-chassis-ld01i.pdf
Date
PREV: LG 47LD750 / 47LD750N / 47LD751 / 47LD780 / 47LD790 (CHASSIS:LD03B) Service Manual

LG 47LD920 (CHASSIS:LD01I) Service Manual ▷ View online

- Auto Download
• After enter Service Mode by pushing “ADJ” key,
• Enter EDID D/L mode.
• Enter “START” by pushing “OK” key.
* Edid data and Model option download (RS232)
- Manual Download
* Caution
1) Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
2) Never connect HDMI & D-sub Cable at the same time.
3) Use the proper cables below for EDID Writing
4) Download HDMI1, HDMI2, separately because HDMI1 is
different from HDMI2
1) FHD RGB EDID data
2) FHD HDMI EDID data
* Detail EDID Options are below
ⓐ Product ID
ⓑ Serial No : Controlled on production line.
ⓒ Month, Year :
ex) Monthly : ‘02’ -> ‘02’
Year : ‘2009’ -> ‘13’
ⓓ Model Name(Hex):
ⓔ Checksum: Changeable by total EDID data.
ⓕ Vendor Specific(HDMI)
Model Name
HEX
EDID Table
DDC Function
FHD Model
0001
01 00
Analog/Digital
- 13 -
MODEL
MODEL NAME(HEX)
47LD920 00 00 00 FC 00 34 47 4C 44 36 33 30 2D 5A 41 0A 20 20
Item CMD1 CMD2 Data0
Download
A
A
0
0
When transfer the ‘Mode In’,
‘Mode In’
Carry the command.
Download
A
E
00 10 Automatically Download
(The use of a internal pattern)
Item
Manufacturer ID
Version
Revision
Condition
GSM
Digital : 1
Digital : 3
Data(Hex)
1E6D
01
03
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
For HDMI EDID
For Analog EDID
INPUT
MODEL NAME(HEX)
HDMI1 67030C001000B82D
HDMI2 67030C002000B82D
HDMI3 67030C003000B82D
HDMI4
67030C004000B82D
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
00
00
FF
FF
FF
FF
FF
FF
00
1E
6D
ⓐ
ⓑ
10
ⓒ
01
03
68
73
41
78
0A
CF
74
A3
57
4C
B0
23
20
09
48
4C
A1
08
00
81
80
61
40
45
40
31
40
01
01
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
50
6E
28
55
00
7E
8A
42
00
00
1E
00
00
00
FD
00
3A
60
3E
1E
53
10
00
0A
20
20
20
20
20
20
ⓓ
70
ⓓ
00
ⓔ
80
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
90
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
A0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
B0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
C0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
D0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
E0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
F0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
00
00
FF
FF
FF
FF
FF
FF
00
1E
6D
ⓐ
ⓑ
10
ⓒ
01
03
80
73
41
78
0A
CF
74
A3
57
4C
B0
23
20
09
48
4C
A1
08
00
81
80
61
40
45
40
31
40
01
01
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
50
6E
28
55
00
7E
8A
42
00
00
1E
00
00
00
FD
00
3A
60
3E
1E
53
10
00
0A
20
20
20
20
20
20
ⓓ
70
ⓓ
01
ⓔ
80
02
03
26
F1
4E
10
1F
84
13
05
14
03
02
12
20
21
90
22
15
01
26
15
07
50
09
57
07
ⓕ
A0
ⓕ
E3
05
03
01
01
1D
80
18
71
1C
16
20
58
2C
B0
25
00
7E
8A
42
00
00
9E
01
1D
00
80
51
D0
0C
20
C0
40
80
35
00
7E
8A
42
00
00
1E
02
3A
80
18
71
38
D0
2D
40
58
2C
45
00
7E
8A
42
00
00
1E
66
21
50
B0
E0
51
00
1B
30
40
70
36
00
7E
8A
42
00
00
1E
00
00
F0
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
F9
- 14 -
4.6. Outgoing condition Configuration
- When pressing IN-STOP key by SVC remocon, Red LED are
blinked alternatively. And then Automatically turn off.
(Must not AC power OFF during blinking)
Confirm whether is normal or not when between power
board’s ac block and GND is impacted on 1.5 kV(dc) or 2.2
kV(dc) for one second.
5. Model name & Serial number D/L
• Press “Power on” key of service remocon.
(Baud rate : 115200 bps)
• Connect RS232 Signal Cable to RS-232 Jack.
• Write Serial number by use RS-232.
• Must check the serial number at the Diagnostics of SET UP
menu. (Refer to below).
5.1. Signal TABLE
CMD : A0h
LENGTH : 85 h ~ 94h (1 byte ~ 16 byte)
ADH : EEPROM Sub Address high (00~1F)
ADL : EEPROM Sub Address low (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 +…+ Data_n
Delay : 20 ms
5.2. Command Set
* Description
FOS Default write : <7mode data> write
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0,
Phase
Data write:Model name and Serial number write in EEPROM.
5.3. Method & notice
A. Serial number D/L is using of scan equipment.
B. Setting of scan equipment operated by Manufacturing
Technology Group.
C. Serial number D/L must be conformed when it is
produced in production line, because serial number D/L
is mandatory by D-book 4.0.
* Manual Download (Model Name and Serial Number)
If the TV set is downloaded by OTA or Service man, Sometimes
model name or serial number is initialized.(Not always)
There is impossible to download by bar code scan, so It need
Manual download.
1) Press the ‘instart’ key of ADJ remote controller.
2) Go to the menu ‘5.Model Number D/L’ like below photo.
3) Input the Factory model name or Serial number like photo.
4) Check the model name Instart menu -> Factory name
displayed (ex 42LD920-ZA)
5) Check the Diagnostics (DTV country only) -> Buyer model
displayed (ex 42LD920)
CMD 
LENGTH
ADH 
ADL 
DATA_1
. . . 
Data_n 
CS 
DELAY 
No. Adjust 
mode 
CMD(hex)
LENGTH(hex) 
Description 
1 
EEPROM WRITE 
A0h 
84h+n 
n-bytes Write (n = 1~16) 
6. 3D function test
(Pattern Generator MSPG-3233, HDMI mode No. 371, Pattern
No. 81)
(1) Must input the signal(No.81) for 3D test like below. 
(2) After change to 3D mode, and then select side by side
format.
Can see like the below pattern, if you don’t put on the 3D
glasses.
(3) If you see the TV using by only the left side glass, If Can
see the Red on the center position like below
It’s OK.
(4) If you see the TV using by only the light side glass, If Can
see the Red on the center position like below
It’s OK.
- 15 -
- 16 -
BLOCK DIAGRAM
1. Main board
RG
B
COM
P
ON
E
N
T
COM
P
ON
E
N
T
F-
S
C
A
R
T
AV
3
B
U
F
_
T
S
_
C
L
K
/
E
R
R
/
S
Y
N
/
D
AT
A[0]
AV
_
C
V
B
S
_
IN
DD
R
2
 S
D
R
A
M
(1
G
b
)
IC
3
0
0
NA
N
D
 F
la
s
h
HY
N
IX
IC
102
US
B
US
B
Di
g
it
a
l am
p
(N
T
P
3100L
)
IC
7
0
1
COM
P
_
Y
/P
b
/
P
r
 
SC
1
_
C
V
B
S
_
IN
SC
2
_
C
V
B
S
_
I
N 
I2
S
DS
U
B
_
 R
/
G/
B
Tu ner
( TDFW-G235 D1 )
TU10 00
74LVC541A
Buffer
I C502
CI Slot
( P5 00 )
74LCX244
Buff er
I C501
P
C
M_
A[
0
:7]
FE
_
V
MA
IN
P
C
M
_
A
[
0:
7]
SD
D
R
_
D
[
0
:1
5
]
DD
R
2
 S
D
R
A
M
(512M
b
)
IC
3
0
1
T
D
D
R
_
D
[
0
:15]
SD
D
R
_
A
[
0
:1
2
]
Ms
ta
r
S
6
L
G
E
3369A
(D
V
IX
)
(I
C
1
00)
M
P
6211D
H
US
B
 P
o
w
e
r 
IC4
0
2
US
B
 P
o
w
e
r
FE
_
T
S
_
D
A
T
A
[
0
:7
]
  ->
C
I_
M
D
I[
0
:7
]
H-S
C
A
R
T
H-S
C
A
R
T
SC
1
_
R
/
G
/
B
S
C
1/
2_
L
/
R
_
IN
, F
E
_
A
M
_
A
U
D
IO
,
A
V
_
L
/
R
_I
N
, C
O
M
P
_L
/
R
_
IN
, P
C
_
L
/
R
_I
N
 
FE
_
 V
O
U
T
D
T
V/
M
N
T
_
VO
U
T
TD
D
R
_
A
[
0
:1
2
]
T
P
A
6
110A
IC
700
He
a
d
 
Ph
o
n
e
R
S
-232C
M
A
X
3232
C
D
R
IC
403
SPD
IF
SP
D
IF
_
O
U
T
DS
U
B
_
H
/
V
S
Y
N
C
HP
_
L
/
R
O
U
T
L/
R
CI
_
T
S
_
D
A
T
A
[
0
:
7]
P
C
M
_
D
[
0:
7
]
->
C
I_
D
A
T
A
[
0:
7]
CI
_
A
DD
R
[
0
:7
]
AU
D
IO
 I
N
RG
B
_
T
X
/
R
X
H
P
D
1
/2
/
3
/4
, 
HDM
I_
C
E
C
H
D
M
I1
/2
/3
 T
M
DS
[
0
:7
] (
D
at
a,
 C
lo
c
k 
(+
/-
))
US
B
_
D
M
/D
P
EE
P
R
O
M
AT
2
4
C
5
1
2
(I
C
1
0
5
)
EEP
R
O
M
A
T
24C
512
(H
D
C
P
)I
C
1
0
7
I2
C
LV
D
S
 (
1
0
 b
it
)
S
e
ri
al
 F
las
h
IC
1
0
4
Fo
r T
ri
to
n
S
e
ri
al
 F
las
h
IC
103
Fo
r B
o
o
t
K
IA
7027
(I
C
1
0
1
)
Vo
lt
a
g
e
 D
e
te
c
to
r
74L
X
1
G
14C
(I
C
108)
Sc
h
m
it
t Tr
ig
g
e
r
Reset
5V
_
H
D
M
I_
1/
2/
3/
4
HDM
I 
1/
2/
3/
4
FR
C
LGE
7
3
2
9
A
IC9
0
0
4C
h
 L
V
D
I2C, FPGA
 Reset
S (
1
0
 b
it
)
D
D
R2
 S
D
RA
M
(5
1
2
M
b
)
IC
1001
D
D
R2
 S
D
RA
M
(5
1
2
M
b
)
IC
1000
DD
R
_
A
_
D[
0
:1
5
]
D
D
R
_
B
_
D
[
16:
3
1]
D
D
R
_
A
_
A
[
0:
12]
DD
R
_
B
_
A
[
0
:1
2
]
HD
M
I
S
/
W
(T
M
D
S
3
5
1
)
IC
6
0
3
H
D
M
I4
 T
M
D
S
[
0
:7
]
 (
 D
a
ta
, C
lo
c
k (
+
/-
)
)
3D Formatter B/D
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