Cloned by my I do not have that chassis, if I found something browsing the WEB, I bring you a link to download it from the cloud; As usual you have to keep the old memory well, and use a new memory.
https://www.dropbox.com/s/drj4cpl4hawc09g/15692_LBC_AS1821_Chassis_CY1421C_micro_LC863432-55L8_jungla_LA76818A_memoria_24C08_data_eeprom.rar?dl=0