Service manual

5. EDID
(The Extended Display
Identification Data ) / DDC(Display
Data Channel) download
* Caution 1: Use the proper cables below for EDID Writing
* Caution 2: Write EDID data to EEPROM by using DDC2B
Protocol.
5.1 Profile : To be possible for plug and
play
5.2 Equipment
1) Adjusting PC with S/W for writing EDID Data.(S/W : EDID
TESTER Ver.2.5)
2) A Jig for EDID Download
3) Cable : D-sub 15Pin cable, HDMI cable.
5.3 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.
5.4 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
5.5 EDID data
1) M197WAP
5.5.1. RGB EDID Data
1) M197WAP
5.5.2. HDMI EDID Data
1) M197WAP
- All data are HEXA
- Adjustable Data :
**: week
***: year ex) when year 2008 : input “12”
**** : CHECK SUM (deferent along week, year)
- 17 -
LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
For Analog EDID For HDMI EDID
No. Item content 16bit Data
1 Manufacturer ID GSM 1E6D
2 ProductID 19410(Analog) 4BD2
19412(HDMI) 4BD4
3 Year 2009 13
4 Version Analog : 1
Digital : 1 1
5 Revision Analog :
Digital : 3
6 Model Name M197WP
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