The unit won't turn on and I have nothing on the front panel display. Not even a power light.

That's good now things are much easier explaining.
It's very good that you have a transformer on that system, makes things simpler, so if you have output on the transformer then definitely the current goes to diodes ( or transistor) to change AC to DC, check the output after those ( diodes or transistor) ( I'm sure you know all these and I'm sorry to mention again, just trying to help as much as I can ).
Usually if the fuses are intact then only thing that can get blown on a power supply board is the power supply IC ( or transistor of some kind ) you can find them on the power supply board easily, they are usually attached to an aluminum cooling plate ( they get pretty hot ).
You know it's really hard to consult on repairing something from a distance, I hope it helps you. That's good now things are much easier explaining. It's very good that you have a transformer on that system, makes things simpler, so if you have output on the transformer then definitely the current goes to diodes ( or transistor) to change AC to DC, check the output after those ( diodes or transistor) ( I'm sure you know all these and I'm sorry to mention again, just trying to help as much as I can ). Usually if the fuses are intact then only thing that can get blown on a power supply board is the power supply IC ( or transistor of some kind ) you can find them on the power supply board easily, they are usually attached to an aluminum cooling plate ( they get pretty hot ). You know it's really hard to consult on repairing something from a distance, I hope it helps you.

Usually amplifier/receiver transformers have two outputs., i mean three wires are connected from transformer to the board (output ones), one of those points is common for both voltages, one of the points is usually +5V (AC) for powering some parts of the system, the third outlet point can be either 12V, 24V or sometimes 36V (AC) for powering mainly the amplifier part of the system.
You can easily check the output of the transformer with a multimeter AC Voltmeter ( forgive me if I mention these, you may already know it), cross check all three points against each other you should be able to find the common base for both voltages and see the outputs, usually if the transformer is good then you have good output no matter what, cuz a bad transformer has not output at all, the problem that can happen with a transformer is either a broken line in primary input coil or a blown up primary coil ( in both cases you wont have any output at all, not even a small voltage).
Have a look and let me know if I can be more of assistance.
Best


P.S Your system is a really nice one, I wouldn't mind spending a 100 on it to get it fixed, but gotta make sure the problem spot before buying any parts for it. Usually amplifier/receiver transformers have two outputs., i mean three wires are connected from transformer to the board (output ones), one of those points is common for both voltages, one of the points is usually +5V (AC) for powering some parts of the system, the third outlet point can be either 12V, 24V or sometimes 36V (AC) for powering mainly the amplifier part of the system. You can easily check the output of the transformer with a multimeter AC Voltmeter ( forgive me if I mention these, you may already know it), cross check all three points against each other you should be able to find the common base for both voltages and see the outputs, usually if the transformer is good then you have good output no matter what, cuz a bad transformer has not output at all, the problem that can happen with a transformer is either a broken line in primary input coil or a blown up primary coil ( in both cases you wont have any output at all, not even a small voltage). Have a look and let me know if I can be more of assistance. Best
P.S Your system is a really nice one, I wouldn't mind spending a 100 on it to get it fixed, but gotta make sure the problem spot before buying any parts for it.