Replacing power supplies
Replacing the VFM40-T3512 with the RS-25-3.3 power supply
desolder the wires dismount and remove the VFM40-T3512 power supply
connect the blue wire of the RS-25-3.3 here
connect the brown wire of the RS-25-3.3 here
solder the blue wire in hole #4, solder the yellow wire in hole #2
fasten the shielding plate and cut off the plastic cover lug
connect the earthing wires fasten the power supply