Is normal to have 45V at the + and - of the bridge diode? ??? LE: I use 28V ac transformer. If P2 shortcuts Pin3 of U3 with R18=U3 gets very hot; if P2 shortcuts Pin3 of U3 with R17=U2 gets very hot, led also turns on; I don't know too much electronics and I need someone to help me troubleshoot this power source. I've spent too many hours just to throw it away. :-\