This is firmware revision 1.0.7 and is an official released operation system by Roland. This operation system update / upgrade requires two eprom chips as revealed in the eBay article`s photos and the chip will be labeled to help you locate the correct chip socket. For more info, please check below.

Features:

Bug fixes, improved midi communication and general stability.

Grade:

• The two chips are located at IC 26 and IC 27.
• Some PCB revisions may not have IC sockets.
• The Roland MT-32 is not for sale, only this update / upgrade.
• The eprom chips will be verified before shipping and professionally packaged in anti-static material.