Apple 3400C/200, G3 manual Screen

		Troubleshooting		Symptom Charts/Power - 5
		is blank;	1	If sleep LED is continually on, backup battery power has been
	Screen
computer doesn’t				interrupted. Restart computer by holding down reset actuator
respond				10-20 seconds. If computer doesn’t restart, repeat 3–4
			2	times.
				Restart computer.
			3	Disconnect power adapter, remove battery, and restart
			4	computer in 3-4 minutes.
				Check power adapter cable.
			5	Try known–good, charged battery.
			6	Try known-good power adapter.
			7	Reset power manager.
			8	Check all logic board cables and connections.
			9	Replace keyboard.
			10	Replace power supply board.
			11	Replace logic board.