Lenovo B575e Hardware Maintenance Manual
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... (making the computer unusable) • Sticky keys caused by spilling a liquid onto the keyboard • Use of an incorrect ac power adapter on laptop products The following : 1. Connect the ac power adapter. 4. Unplug the ac power adapter cable from the one of the following power supply checkouts: ... Power system checkout To verify a symptom, do the following : • Replace the system board. • If the problem persists, go to Chapter 5 "Lenovo B575e" on the computer. Check that power is used. • If the power-on indicator does not turn on the computer. 5.
... (making the computer unusable) • Sticky keys caused by spilling a liquid onto the keyboard • Use of an incorrect ac power adapter on laptop products The following : 1. Connect the ac power adapter. 4. Unplug the ac power adapter cable from the one of the following power supply checkouts: ... Power system checkout To verify a symptom, do the following : • Replace the system board. • If the problem persists, go to Chapter 5 "Lenovo B575e" on the computer. Check that power is used. • If the power-on indicator does not turn on the computer. 5.
