https://www.ifixit.com/Guide/Teenage+Engineering+OP-1+Connector+Board+Replacement/19125 https://www.ifixit.com/Guide/Teenage+Engineering+OP-1+Connec... You don

https://www.ifixit.com/Guide/Teenage+Engineering+OP-1+Connector+Board+Replacement/19125 https://www.ifixit.com/Guide/Teenage+Engineering+OP-1+Connec... You don't need to solder, the connectors are on a user-replaceable daughter board.