47SL80YD-DA (CHASSIS:LT91T) - LG TV Service Manual (repair manual). Page 14

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4.3. DDC EDID Write (RGB 128Byte )
· Connect D-sub Signal Cable to D-Sub Jack.
· Write EDID DATA to EEPROM (24C02) by using DDC2B
protocol.
· Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to Insert
Process in advance.
4.4 DDC EDID Write (HDMI 256Byte)
· Connect HDMI Signal Cable to HDMI Jack.
· Write EDID DATA to EEPROM(24C02) by using DDC2B
protocol.
· Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to Insert
Process in advance.
4.5 EDID DATA
1) All Data : HEXA Value
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
- Auto Download
- Manual Download
* Caution
1) Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
2) Nerver connect HDMI & D-sub Cable at the same time.
3) Use the proper cables below for EDID Writing.
4) Download HDMI1, HDMI2 separately because each data is
different.
- 14 -
EZ ADJUT
0. Tool Option1  
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Country Group
5. ADC Calibration
6. White Balance
7. Test Pattern
8. EDID D/L
9. Sub B/C
EDID D/L
HDMI1
HDMI2
HDMI3
RGB
NG
NG
NG
NG
Reset
Start
EDID D/L
HDMI1
HDMI2
HDMI3
RGB
OK
OK
OK
OK
Reset
Start
 
 
 
 
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
For HDMI EDID
For Analog EDID
Item
Manufacturer ID
Version
Revision
Condition
GSM
Digital : 1
Digital : 3
Data(Hex)
1E6D
01
03

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