LG 22LE5300 Service Manual page 14

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
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
Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
EDID D/L
HDMI1
NG
HDMI2
NG
HDMI3
NG
RGB
NG
Reset
Start
EDID D/L
OK
HDMI1
OK
HDMI2
OK
HDMI3
OK
RGB
Start Reset
- 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.
For Analog EDID
D-sub to D-sub
Item
Manufacturer ID
Version
Revision
- 14 -
For HDMI EDID
DVI-D to HDMI or HDMI to HDMI
Condition Data(Hex)
GSM 1E6D
Digital : 1 01
Digital : 3 03
LGE Internal Use Only