Jumping the 5v simply takes the 5v to the CPU board as this goes from the blanking to CPU via pin 37.
There is no reason why simply doing this would cause the 5v fuse to blow.
Blowing fuses suggest a short somewhere - you may have inadvertantly shorted something. Continual blowing of fuses means the short is still there.
Take the driver board off and check that you havent a short across pins 37 - 38 or 37 - 36. its easy to do.
Check that the legs on the transistors in blanking circuit arent touching etc etc.
ill dig out my notes and also check Clays guides to refresh my memory.
Weve gone backwards here and need to get you back to a non booting CPU
