|E-mu Orbit 9090 firmware OS update v 2.0
This is firmware upgrade v. 2, this was an option in the late 90s for the classic V. 1 and is the latest official released operation system by E-mu Systems. This operation system update/upgrade requires two eprom chips as revealed in the article`s photos and the chips will be labeled to help you locate the correct chip socket. For more info, please check below.
Your device is displaying the current version at booting and most users may already have version 2.
This will upgrade your classic V. 1 to V. 2.