Jdm-055 Schematic __top__ Jun 2026

The input matrix for the buttons on the JDM-055 follows standard PCB logic but utilizes proprietary connectors. The schematic details a ribbon cable connection or pin-header system that links the eight main action buttons and the start/select options to the mainboard. A defining feature of the JDM-055 schematic is the hard-wiring of the "Share" (or Touchpad) functionality. Unlike the older JDM-054 model, the JDM-055 updated its schematic to include the necessary trace for the Touchpad button, which is a requirement for full PlayStation 4 compatibility. This evolution in the circuit diagram highlights the board’s specific purpose: bridging the gap between the PS3 era and the PS4 generation without requiring a complete overhaul of the internal architecture.