OLD_Csum = 0xAC OLD_DesCap_MSB = 0x5 OLD_DesCap_LSB = 0x3C OLD_DesEn_MSB = 0x13 OLD_DesEn_LSB = 0x60 OLD_TerVol_MSB = 0xC OLD_TerVol_LSB = 0x80 OLD_TapRat_MSB = 0x00 OLD_TapRat_LSB = 0x64 NEW_DesCap_MSB = 0x00 NEW_DesCap_LSB = 0x78 NEW_DesEn_MSB = 0x1 NEW_DesEn_LSB = 0xBC NEW_TerVol_MSB = 0xC NEW_TerVol_LSB = 0x80 NEW_TapRat_MSB = 0x1 NEW_TapRat_LSB = 0xF4 temp = mod(0xFF - 0xAC - 0x5 - 0x3C - 0x13 - 0x60 - 0xC - 0x80 - 0x00 - 0x64, 0x100) = mod(0x-151, 0x100) = 0xAF NEW_Csum = 0xFF - mod(0xAF + 0x78 + 0x1 + 0xBC + 0xC + 0x80 + 0x1 + 0xF4, 0x100) = 0xFF - mod(0x365, 0x100) = 0xFF - 0x65 = 0x9A