Chosen Solution
My 17" 2007 MacBook had the screen go black while I was working. I rebooted holding down control alt shift I believe that was it and it came back on. Now it’s done it again. Power button turns it on front light comes on and slight screen glow near bottom. Gives a single long shrill tone then the standard chime when power button is depressed. I can feel hard drive spinning seems to stop at usual amount of reboot time. But screen still dark. Any help is greatly appreciated Thanks! Ron
A single tone indicates there is no RAM installed: https://support.apple.com/en-us/HT202768
Looks like a problem with your RAM (I had similar one). Try removing the RAM modules one by one from their slots and booting it again
