Hardware Maintenance Manual
Page 36
...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 symptoms might indicate damage caused by nonwarranted activities: • Missing parts might be a symptom of unauthorized service or modification. ... battery pack supplies power when you turn on, check the power cord of the ac power adapter may have been subjected to Chapter 5 "Lenovo B590" on page 31 To check the ac power adapter, do the following power supply checkouts: • "Checking the ac power adapter" on...
...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 symptoms might indicate damage caused by nonwarranted activities: • Missing parts might be a symptom of unauthorized service or modification. ... battery pack supplies power when you turn on, check the power cord of the ac power adapter may have been subjected to Chapter 5 "Lenovo B590" on page 31 To check the ac power adapter, do the following power supply checkouts: • "Checking the ac power adapter" on...