Remove the wiring attached to it (PD,PE,PF). These are simple connector and can just pulled of. These markings are not of importance to this repair. But they all are clearly marked on the connectors as well as the logic board they connect to. This will help to identify their proper position for the re-assembly.
Remove the four screws holding the board on.
This board has 7 1000uf 16Volt capacitors. These are the ones that have a tendency of failing. Inspect those for bulging tops as well as leakage. In this case, one capacitors was sligthly bulged.