Don't bother swapping the power brick or whatever it would be called in a tron out it's just too much of a hassle. The linear power boards are the same but be aware that spy hunters can be very picky so the board that works great in your tron may not seem to work in your spy hunter even if all voltages measure correct. SH's often need a bit more than the 5v and 12v they say they should get. A loud hum could be a grounding issue or could even be a person's interpretation of how loud the game should be. SH's tend to have a bit more hum than other games do simply by design. Usually a loud annoying hum on a SH means bad caps on the power brick. This could also cause fuses to blow but I would also suggest you look into shorts, particularly in the coin door area as a possible reason the fuse is blowing. One culprit that is often overlooked is the slam switch. It mounts to the lock on the coin door and if it becomes loose can swing enough where it will contact the mechs and often cause a short.