Apple DUO 280C, DUO 27C, 250, 230, POWERBOOK DUO FLOPPY ADAPTER manual

Additional Procedures	AC Adapter Verification - 24
	5 Also check the AC adapter
	under load. Switch on
	the PowerBook and
	repeat the voltmeter
	check. If the reading
	drops more than 1–2
	volts, replace theq
	adapter.