Apple POWERBOOK DUO FLOPPY ADAPTER, DUO 280C, DUO 27C, 250, 230 Positive Probe Negative Probe

Additional Procedures AC Adapter Verification - 23

Positive Probe

Negative Probe

4Touch the negative voltmeter probe to the contact nearest the power plug and the positive probe to the contact second nearest the power plug. If the reading is not 24–25 volts, replace the adapter.