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Chapter 17: Troubleshooting
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Safety guidelines
While troubleshooting your notebook, follow these safety guidelines:
■ Never remove the memory bay cover while your notebook is turned on,
while the battery is installed, and while the modem cable, network cable,
and AC power adapter are connected.
■ Make sure that you are correctly grounded before accessing internal
components. For more information about preventing damage from static
electricity, see “Preventing static electricity discharge” on page 244.
■ After you complete any maintenance tasks where you remove the memory
bay cover, make sure that you replace the cover, reinstall the screw, then
replace the battery before you start your notebook.
Warning Do not try to troubleshoot your problem if power cords or
plugs are damaged, if your notebook was dropped, or if
the case was damaged. Instead, unplug your notebook
and contact a qualified computer technician.