I recently acquired a 6060. The unit didn't power on, but it cost me nothing so I figured I take it... why not. Upon opening the case, two fuses on the the power amp board (which are also directly connected to a pair of secondaries from the transformer) were blown (f602 and f603). First move - replace the fuses and retry powering on... they instantly blew. I am fairly new to audio repair but have seen a similar issue in a Pioneer receiver... replacing the output transistors took care of that problem, but replacing the outputs (and associated resistors for good measure) in this amp have not solved the problem. When the power switch is on and the blown fuses are still in the board, a specific resistor (r612) gets extremely hot and starts to smoke... testing the resistor out of circuit shows it is still good though. I have not found any shorts on the board near the problem areas... but more testing could always be done So far here are my thoughts, and this is where I'd love some input on whether I'm on the right track or not. The fuses are blowing due to either too much power coming from the transformer/power supply (the secondaries put out around 26V not the specified 24.8V) or a short somewhere else on the board. The overheating resistor is somewhat of a mystery to me, but I have to imagine it is related to the issue with the fuses. Anyway, if you can glean any insight from this mess I've described I'd love to hear your thoughts. Any help in trouble shooting will be greatly appreciated!