Korg R3 internal 3,3V switching regulator improvement

[alfredokiwi]

Hi folks,

Hi have finished the circuit mods inside my R3 lowering the switching Vout feedback network by a factor of 1000. Here is the post explaining the issue with pictures about circuit changes and final 3,3V regulation out.

http://alfredoblogspage.blogspot.com.ar ... lator.html







I strongly recommend to do the circuit changes to avoid further issues on internal R3 voltages regulation.