LG 42PG6900 Service Manual page 12

(5) EEPROM DATA READ
1) Signal TABLE
2) Command Set
To read the appointment Address of E2PROM by 128(80h)
-byte
(6) EEPROM Data Write(serial number D/L)
1) Signal TABLE
CMD : 8Eh
LENGTH : 84h+Byte
ADH : E2PROM Slave Address (A0, A2, A4, A6, A8),
Not 00h (Reserved by Buffer To EEPROM)
ADL : E2PROM Sub Address (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 + ... +
Data_n
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
EEPROM,.
Delay : 20ms
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3) 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
EEPROM,.
LGE Internal Use Only