DOWNLOAD LG 37LT640H-ZA (CHASSIS:LD2AF) Service Manual ↓ Size: 6.64 MB | Pages: 61 in PDF or view online for FREE

Model
37LT640H-ZA (CHASSIS:LD2AF)
Pages
61
Size
6.64 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
37lt640h-za-chassis-ld2af.pdf
Date

LG 37LT640H-ZA (CHASSIS:LD2AF) Service Manual ▷ View online

- 13 -
(1) FHD RGB EDID data
(2) FHD HDMI EDID data
(3) Detail EDID Options are below
a. Product ID
b. Serial No: Controlled on production line.
c. Month, Year: Controlled on production line:
ex) Week : '01' -> '01'
Year : '2012' -> '16' fix
d. Model Name(Hex):
cf) TV set’s model name in EDID data is below. 
e. Checksum: Changeable by total EDID data.
f. Vendor Specific(HDMI)
4.5. 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)
4.6. HI-POT Test
4.6.1. HI-POT auto-check preparation
-  Check the POWER cable and SIGNAL cable insertion condition
4.6.2. HI-POT auto-check
(1)  Pallet moves in the station. (POWER CORD / AV CORD is 
tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next proc-
ess automatically.
4.6.3. Checkpoint
(1) Test voltage
- Touchable Metal : 3 KV / min at 100 mA
- SIGNAL : 3 KV / min at 100 mA
(2) TEST time: 1 second. (case : mass production )
(3) TEST POINT
- Touchable Metal => LIVE & NEUTRAL : Touchable Metal.
- SIGNAL => LIVE & NEUTRAL : SIGNAL.
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
a
b
10
c
01 03 68 10 09 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 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 A0 5A 00 00 00 1E 01 1D 00 72 51 D0 1E 20
50 6E 28 55 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20
d
70
d
00
e
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
a
b
10
c
01 03 80 10 09 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 71 4F 81 80 01 01 01 01 01 01
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 A0 5A 00 00 00 1E 1B 21 50 A0 51 00 1E 30
50 48 88 35 00 A0 5A 00 00 00 1C 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20
d
70
d
01
e
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
f
A0
f
E3 05 03 01 01 1D 80 18 71 1C 16 20 58 2C
B0 25 00 A0 5A 00 00 00 9E 01 1D 00 72 51 D0 1E 20
C0 6E 28 55 00 A0 5A 00 00 00 1E 02 3A 80 18 71 38
D0 2D 40 58 2C 45 00 A0 5A 00 00 00 1E 01 1D 00 BC
E0 52 D0 1E 20 B8 28 55 40 A0 5A 00 00 00 1E 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e
MODEL NAME
HEX
EDID Table
DDC Function
HD/FHD Model
0001
01 00
Analog/Digital
Model name
MODEL NAME(HEX)
LG TV
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20  (LG TV)
EDID C/S data
FHD
HDMI
RGB
Check sum
(Hex)
Block 0
43
5C
Block 1
25 (HDMI1)
-
15 (HDMI2)
5 (HDMI3)
Input
Model name(HEX)
HDMI1
67030C001000B82D
HDMI2
67030C002000B82D
HDMI3
67030C003000B82D
- 14 -
5. Model name & Serial number D/L
▪ Press "Power on" key of service remote control.
(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 Product/Service info..
(menu key -> red key -> select product/Service info)
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
5.2. Comand 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
(1) Serial number D/L is using of scan equipment.
(2)  Setting  of  scan  equipment  operated  by  Manufacturing 
Technology Group.
(3)  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 Adjustment remote control.
2) Go to the menu "6.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 42LD450-ZA)
5)  Check  the  Diagnostics.(DTV  country  only)  →  Buyer  model 
displayed.(ex 42LD450)
CMD
LENGTH
ADH
ADL
DATA_1
. . .
Data_n
CS
DELAY
Adjust mode
CMD(hex)
LENGTH(hex)
Description
EEPROM WRITE
A0h
84h+n
n-bytes Write (n = 1~16)
- 15 -
6. CI+ Key Download method
6.1. Download Procedure
(1) Press "Power on" key of a service R/C.
     (Baud rate : 115200 bps)
(2) Connect RS232-C Signal Cable.
(3) Write CI+ Key through RS-232-C.
(4)  Check whether the key was downloaded or not at ‘In Start’ 
menu. (Refer to below).
=> Check the Download to CI+ Key value in LGset. 
1. Check the method of CI+ Key value
a. Check the method on Instart menu
b. 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
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
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
 
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