@Zax It turns out that the mains connector was wired incorrectly giving a -ve12v onto the board. I have connected the Control board and computer, turned on the power (reversed +ve and -ve). The fan started and the laser came on in week power mode. When I pressed the mode button the laser turned off. When I ran the code the laser turned on and off at the right time. I just need to connect it to my CNC now.
Thank you Zax for you help in this, i really appreciate it.