TR-626 ROM Expansion Kit
This kit adds 2 additional sound banks to the TR-626 (DMX + 707 / LinnDrum + LM-1). Stock sound set is retained as well, by inserting the original ROM chip into the empty socket on the expansion board. Chip and bank are selected with two toggle switches.
The modified TR-626 behaves exactly as normal, just with different sounds depending on which bank is selected. Instrument tuning, accent levels, trigger out etc. are all still functional.
Kit includes pre-assembled expansion board (with pre-programmed flash ROM), chip socket and toggle switches.
Installation instructions can be found here -