Black screen, power light on steady, no chime: POST / BootROM failure?
I have reviewed previous answers to this question and reviewed articles on the support.apple website. Apple support indicates a "POST or BootROM failure" because the screen is black and the power light is on steady. I have no idea what "POST or BootROM failure" means or how to resolve it and could not find further reference to it on the Apple site.
Any ideas of what to test / replace?