(PS4) controller, specifically the "Slim" or "Pro" generation (v2). The Discovery: The Silicon Soul
The JDM-040 uses a specific button membrane that is not fully interchangeable with older V1 models. For a step-by-step physical breakdown, you can follow the iFixit Midframe Assembly Guide specifically for this model. (like a resistor or capacitor) or a pinout map for a custom mod? DualShock 4 Controller PCB scans - Acidmods.com jdm-040 schematic