E-MU SP-12 turbo mod+repair
Got this iconic beat machine in town for a fair price. Battery needed a replacement and all of the 30 push buttons were cleaned with isopropanol. Fader 8 was flakey so i decided to replace all of them. Backlight was a bit dim, so i soldered a new one in place.
After that i experimented with the ssm2044 chip and came up with an external control box for both of the filters. Tweakers heaven!!!
Mods: 400€ + parts (knobs+housing) + postage (No VAT (small business §19 (1) UStG))
Cutoff 1,2
Reso 1,2
Env. Depth 1,2
Furthermore I found a solution to send samples back and forth to the machine via sample dump in EMXP (windows software) in a virtual machine environment on OSX. Works pretty well!!!
All functions were tested using the Diagnostic Eprom.
do u have any closer pic of how u wired the pots, and closer image of solder points on the board? i can’t see some of them, 🙏🙏🙏🙏
Hallo,
great job you did, bravo. How did you do to send and receive your sounds via midi dump ? I am very interested by that
Kind regards. Laurent
I have an SP-12 that was serviced but does not sound good, a strange sound, can you fix it? can I send it to you to be repaired? I can make you a video
Hi! using EMXP and an USB-EMU midi cable;)
Not at the moment, you can find them in the schematic. take care!!