You might want to check the rest of the board with a set of 3 fresh 1.5 batteries and introduce the power supply to the Vin(+) and Gnd(-). The battery supply should bypass the regulator and let you know where things are.
You might want to check the rest of the board with a set of 3 fresh 1.5 batteries and introduce the power supply to the Vin(+) and Gnd(-). The battery supply should bypass the regulator and let you know where things are.