This section includes the Micro-USB port and the charging protection diodes. If your controller won't charge but the battery is healthy, the schematic helps locate the or the charging MOSFET. Common Repair Points on the JDM-040

: If you desolder the analog sticks, the LSX and LSY lines become "floating," meaning they have no defined voltage. This causes the controller to register chaotic, random movements until new pots are installed.