I have a 15 year old MacIIci that still works (for the most part). Unfortunately, we have power failures & electrical problems in storms. I think my mac has turned off the display (put it to sleep) as a result of a power glitch during a recent storm. It has happened once before, and there is a certain key combination used during reboot to turn it back on, but I don't know what it is. It will reboot & plays a short musical interlude when it starts the reboot, but the screen stays blank. Can anyone help? Thanks.
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Could be that the monitor is dead (does it turn on?), or that the video componant on the logic board is dead. But first I would try to zap the PRAM.
Restart and hold down Apple-Option-P-R, after the 3rd chime let the keys go and see what happens.
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I remember a control panel that used to control the flashing of the keyboard lights. Ah, the fond memories of those days...
Resetting the PRAM should have cleared up any misgivings concerning the relationship between the computer and the monitor. You could try to boot into "safe …
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