The fender stagg 160 with fx in for repair..hummm at power on!
Well this old timer had seen some rough service repair before by someone with a welding iron lol..so one with the repair..
Remember the o/p is grounded in this amp look at the circuit before diving in.. make sure all low rail voltages are correct +/-16v
ht is about 45+/-..followed bay signal trace out round the opamps..and the answer to that $64 dollar question yes change the 3300uf fillter caps for 4700uf one and it will be back in action. well it solved the one on my bench in 2hrs tops!
cheers for now