Recently aquired a FSE 40W Deluxe Hobby Laser from a friend. They told me that the power supply blows its fuse. The first time was during a cut operation. The second time was right after the machine is turned on.. Now it blows both fuses when just turning the key. If the fuse by the power cord is replaced and the power supply fuse removed the light and the fan work. Need some help trying to troubleshoot this machine. Do you think its just the power supply that died? My friend told me that the unit has a few days of cutting on it. Nothing is plugged in to the back of the unit.