To be honest I'm finding it hard to work that PCB out - I guess the copper is the top layer as it's surface mount ? - without the component overlay we could make assumptions that the two large components are capacitors and the component that sits over the top of what looks like capacitors could be a regulator..... just guessing

To the OP - you stated the circuit worked fine when breadboarded - try re-building it on vero strip board using descrete components (possibly the ones used on the breadboard) and see if that works. If it does then it would suggest that the problem is with either the PCB design or the SM components.