LG 47LH9000 (CHASSIS:LD91I) Service Manual ▷ View online
1) ANALOG DATA 128Byte (2Bi)
2) DIGITAL DATA(HDMI-1/2/3/4) 256Byte
* Detail EDID Options are below
ⓐ Product ID
ⓑ Serial No: Controlled on production line.
ⓒ Month, Year: Controlled on production line:
ex) Monthly : ‘02’ -> ‘02’
Year : ‘2009’ -> ‘13’
ⓓ Model Name(Hex):
ⓔ Checksum: Changeable by total EDID data.
ⓕ Vendor Specific(HDMI)
4.6. Checking the function of Bluetooth
using adjusts Remote control
(1) Auto checking
- Auto checking is doing in “Power Only”.
- Checking the result of searched(check that is in list or not).
- Go out of checking mode pushing button “Exit”.
- Checking the result of searched(check that is in list or not).
- Go out of checking mode pushing button “Exit”.
(2) Manual checking
- Push the button “Power Only”and “Exit”.
- Push the button hot key “Bluetooth”.
- Checking the result of searched(check that is in list or not).
- Go out of checking mode pushing button “Exit”.
- Push the button hot key “Bluetooth”.
- Checking the result of searched(check that is in list or not).
- Go out of checking mode pushing button “Exit”.
4.7. Checking the function of Local Dimming
(using adjusts Remote control)
- Dimming checking is doing in “Power Only”.
- Enter the signal of component. (Pattern : 7(combination),
- Enter the signal of component. (Pattern : 7(combination),
Time : 225 (1920 *1080))
- Push the button “Tilt”.
- Checking the function of Dimming refer to the picture at below.
- Push the button “Exit”.
- Checking the function of Dimming refer to the picture at below.
- Push the button “Exit”.
4.8. Outgoing condition Configuration
- When pressing “IN-STOP” key by Service remote control,
Red LED are blinked alternatively. And then Automatically
turn off. (Must not AC power OFF during blinking)
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 1.5kV(dc) or
2.2kV(dc) for one second.
board's ac block and GND is impacted on 1.5kV(dc) or
2.2kV(dc) for one second.
Model Name
HEX
EDID Table
DDC Function
FHD Model
0001
01 00
Analog/Digital
- 13 -
MODEL
MODEL NAME(HEX)
47LH9000 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
INPUT
MODEL NAME(HEX)
HDMI1
67 03 0C 00 10 00 B8 2D
HDMI2
67 03 0C 00 20 00 B8 2D
HDMI3
67 03 0C 00 30 00 B8 2D
HDMI4
67 03 0C 00 40 00 B8 2D
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
73
41
78
0A
CF
74
A3
57
4C
B0
23
0x02 09
48
4C
A1
08
00
81
80
61
40
45
40
31
40
01
01
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
0x05 6E
28
55
00
7E
8A
42
00
00
1E
00
00
00
FD
00
3A
0x06 3E
1E
53
10
00
0A
20
20
20
20
20
20
ⓓ
0x07
ⓓ
00
ⓔ
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
73
41
78
0A
CF
74
A3
57
4C
B0
23
0x02 09
48
4C
A1
08
00
81
80
61
40
45
40
31
40
01
01
0x03 01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04 45
00
7E
8A
42
00
00
1E
01
1D
00
72
51
D0
1E
20
0x05 6E
28
55
00
7E
8A
42
00
00
1E
00
00
00
FD
00
3A
0x06 3E
1E
53
10
00
0A
20
20
20
20
20
20
ⓓ
0x07
ⓓ
01
ⓔ
0x00 02
03
26
F1
4E
10
1F
84
13
05
14
03
02
12
20
21
0x01 22
15
01
26
15
07
50
09
57
07
ⓕ
0x02
ⓕ
E3
05
03
01
01
1D
80
18
71
1C
16
20
58
2C
0x03 25
00
7E
8A
42
00
00
9E
01
1D
00
80
51
D0
0C
20
0x04 40
80
35
00
7E
8A
42
00
00
1E
02
3A
80
18
71
38
0x05 2D
40
58
2C
45
00
7E
8A
42
00
00
1E
66
21
50
B0
0x06 51
00
1B
30
40
70
36
00
7E
8A
42
00
00
1E
00
00
0x07 00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
ⓔ
- 14 -
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
• 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 : 85~94h (1~16 bytes)
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 : 20ms
LENGTH : 85~94h (1~16 bytes)
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 : 20ms
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
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
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.
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(ex 42LH4000-ZA) or Serial
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(ex 42LH4000-ZA) or Serial
number like photo.
4) Check the model name Instart menu -> Factory name
displayed (ex 42LH4000-ZA)
5) Check the Diagnostics (DTV country only) -> Buyer model
displayed (ex 42LH4000)
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)
- 15 -
TROUBLESHOOTING
P800 Pin #7~#10
Voltage Level = 5V ?
P800 Pin #2
Voltage level = 5V ?
Check Power connector
OK ?
Replace Power Board
YES
NO
YES
P800 Pin #13, 14 = 12V
P800 Pin #17, 18 = 24V ?
NO
Replace Power Board
YES
NO
Replace MAIN B’D Q801
MAIN B’ D L803 = 3.3V ?
Replace MAIN B’D IC801
YES
NO
MAIN B’ D L816 = 1.26V ?
Replace MAIN B’D IC805
YES
NO
MAIN B’ D L815 = 3.3V ?
Replace MAIN B’D IC804
YES
NO
Check MAIN B’D X100 Clock
12MHz
Replace MAIN B’D IC100
YES
NO
Replace MAIN B’D IC102
NAND FLASH
YES
Replace MAIN B’D IC103
Serial Flash
NO
Replace MAIN B'D
IC300, IC301 DDR2 Memory
NO
Replace MAIN B'D IC100
NO
1. Power-up Boot Fail
- 16 -
P800 Pin #20
Voltage level = 2V
-
Check Power connector
OK ?
Replace Power Board
YES
NO
YES
P800 Pin #13, 14 = 12V
P800 Pin #17, 18 = 24V ?
NO
Replace Power Board
YES
NO
Replace MAIN B’D Q802
MAIN B’ D L3505 = 12V ?
Replace MAIN B’D Q806
YES
NO
MAIN B’ D C854 = 1.8V ?
Replace MAIN B’D IC807
YES
NO
MAIN B’ D C833 = 1.26V ?
Replace MAIN B’D IC802
YES
NO
Check MAIN B’D X900 Clock
12MHz
Replace MAIN B’D IC900
YES
NO
Replace MAIN B’D IC902
Serial FLASH
YES
Replace MAIN B’D
IC1000, IC1001 DDR2 Memory
NO
P800 Pin #13, 14 = 12V
P800 Pin #17, 18 = 24V ?
P3500~T-con LVDS Cable
OK ?
YES
Replace LVDS Cable
NO
Replace MAIN B'D IC900
NO
Check RF Cable
MAIN B’ D L821 = 5V ?
YES
MAIN B’ D L1202 = 3.3V ?
NO
Replace MAIN B’ D IC809
YES
NO
Replace MAIN B’ D IC808
MAIN B’ D C810
Pin #2 = 1.2V ?
Replace MAIN B’ D IC804
YES
NO
YES
Replace MAIN B’ D IC 100
2. No OSD
3. Digital TV Video Problem
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