Converting SONY MPF920-E E/131 to Amiga

MPF920 MPF920

Cut trace coming from pin34, desolder jumper from S1 and solder it to S0(or just short it with solder blob).

MPF920 MPF920

Solder jumper wires from pin34 to soldering spot near IC and from SH1 to solder spot that was connected to pin 34 before cutting trace.