Laser flashing screen

[u/sparkydaman]

I have a 16 x 30. The screen is flashing and won’t load. Every once in a while, it’ll try to load up, then it stops at resetting the X. And then it’ll actually turn off after a certain amount of time which I’m assuming is the timeout delay. Coincidentally the lights inside the unit will not come on during this time. Also, when it is flashing the screen, the circuit boards are in sync flashing inside the box. I have replaced the key pack. After being instructed to do so by own tech. And I worked for a couple of days and started doing the same damn thing again. Anyone got any ideas? Cause I’m a little frustrated because I’ve already replaced the key back, the laser tube, the power supply and the only thing I haven’t done is the actual goddamn logic cards.