Hi guys.  Any help is appreciated!

I have a Fender stage 112se that began giving me intermittent problems.  When I opened it up I found a burned resistor next to the induction coil.  I checked the solder joints of the coil and they were cracked.  I resoldered and replaced the resistor and resoldered the coil as well.  It worked fine for about 2 days and then the same problem.  I went back in and checked the solder joints and they looked good, but I reheated them and re did them anyway.  Then it worked fine again.  I left it on with a signal running in to it and after 20 minutes there was a pop and now there is a low hum and no signal can get through and the pots don't do anything to it. 

I turned it on after rechecking things and in less than a minute the transformer started smelling funny(not funny ha ha, funny uh oh)  I am guessing something else is shorting, but I can find nothing.  All the solder joints seem fine.  The grounds seem to be in place.  I don't know what to look for.

Thanks again for any help.