On turning on the main switch at the back of the CC the machine makes its usual dull sound ... but it will not power up using the power key on the keyboard. This happened recently, but (for inexplicable reasons) it came on after a few tries. But no luck this time.
Is there a workaround to actually switching the CC on, i.e. getting it to power up? Any secret keystroke combination?
I've checked the fuse inside the machine - it's okay.