Table Of Contents - Lenovo ThinkCentre A70 Hardware Maintenance Manual

Hardware maintenance manual for thinkcentre a70
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Contents
Important safety information . . . . . . . . . .
compliant FRUs . . . . . . . . . . . . . . .
General safety . . . . . . . . . . . . . . . .
Electrical safety . . . . . . . . . . . . . . .
Voltage-selection switch . . . . . . . . . . . .
Safety inspection guide . . . . . . . . . . . .
devices . . . . . . . . . . . . . . . . . .
Grounding requirements . . . . . . . . . . . .
Lenovo Welcome. . . . . . . . . . . . . .
Lenovo Solution Center . . . . . . . . . . .
SimpleTap . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . .
Problem determination tips . . . . . . . . . .
Lenovo Solution Center . . . . . . . . . . .
PC-Doctor for DOS . . . . . . . . . . . . .
diagnostic disc . . . . . . . . . . . . .
Running tests . . . . . . . . . . . . .
Viewing the test log . . . . . . . . . . .
Using passwords. . . . . . . . . . . . . .
Password considerations . . . . . . . . .
Power-on password . . . . . . . . . . .
Administrator password . . . . . . . . .
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Selecting a startup device . . . . . . . . . .
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sequence . . . . . . . . . . . . . . .
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Hard disk drive boot error . . . . . . . . . .
Power Supply Problems . . . . . . . . . . .
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Diagnostic error codes . . . . . . . . . . .
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Beep symptoms . . . . . . . . . . . . . .
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POST error codes . . . . . . . . . . . . .
Undetermined problems . . . . . . . . . . .
the front of your computer . . . . . . . . . .
computer . . . . . . . . . . . . . . . . .
Locating components . . . . . . . . . . . .
Locating internal drives . . . . . . . . . . .
Replacing the battery . . . . . . . . . . . .
Replacing the optical drive . . . . . . . . . .
Replacing the card reader . . . . . . . . . .
Replacing the system board . . . . . . . . .
the front of your computer . . . . . . . . . .
computer . . . . . . . . . . . . . . . . .
Locating components . . . . . . . . . . . .
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