Ok... make sure the fuses were checked out of the holders.
I WAS going to say that it sounds like you have no coil power, but this cant be if the chimes are working.
As Nino said.. make sure the jones plugs in the bottom are properly seated. It could well be that you have lost the power train to PF coils.. check all solder lugs, sometimes they look like they are attached but the wire plus solder is sitting just above the tab.. ive had this several times.
Just to be sure.... attached common from your DMM to the 0V on the transformer, then with the positive on your DMM, check each side of a non working coil... should both be at approx 28vAC... if its 0V or very close to it then you have lost power to those.
If you are at 28vAC then you have lost ground and need to look at all the YELLOW wires for connection