[johnkosir]

You can use a ohm meter to check the compressor (megger would be better) mark the wires on the compressor and remove them, check from all terminals to the compressor case make sure you get a good connection to the case, if you low resistance, the compressor is shorted to ground and will blow fuses. The resistance between C and R should be a lot less than C to S .  I just wanted to use the board to see if the compressor turns produces suction and discharge pressures, you can power up the compressor with out a board, you would just use the wiring diagram to have the right starting gear in the right place, I would also put in a hard start kit, for the best odds of it starting, make sure you hook up the ground, I usually put my clamp on amp meter around the common to see what current I am drawing, I just use a 110 V plug and plug it in to a extension cord making sure I am not touching the compressor, If it starts and runs, I would let it run and start to touch the discharge pipe on the compressor if it starts to get hot you have some freon in the system and the compressor works, if the compressor sounds like it is running, draws low current,~ 1 -4 amps and the pipe does not get hot it could just mean the system has no gas because of a leak, leaks are repairable,