Diagnostic Programs - Lenovo ThinkCentre A62 3656 User Manual

Lenovo thinkcentre a62 3656: user guide
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Symptom
The keyboard does not work.
The computer does not respond
to the keyboard.
The USB Keyboard does not
work.
The mouse does not work. The
computer does not respond to
the mouse.
The operating system will not
start.
The computer beeps multiple
times before the operating
system starts.

Diagnostic programs

Diagnostic programs are used to test hardware components of your computer and
report operating-system-controlled settings that can cause hardware failures. There
are two diagnostic programs preinstalled on your computer:
v Lenovo System Toolbox (used to diagnose problems while running the Windows
v PC-Doctor for Windows PE (used when your Windows operating system does
60
User Guide
Action
Verify that:
v The computer is turned on.
v The monitor is turned on and the brightness and contrast controls are set
correctly.
v The keyboard is securely connected to the keyboard connector on the
computer.
v No keys are stuck.
If you cannot correct the problem, have the computer serviced. Refer to the
safety and warranty information that is provided with your computer for a list of
service and support telephone numbers.
Verify that:
v The computer is turned on.
v The keyboard is securely connected to a USB connector on the front or rear of
the computer.
v No keys are stuck.
If you cannot correct the problem, have the computer serviced. Refer to the
safety and warranty information that is provided with your computer for a list of
service and support telephone numbers.
Verify that:
v The computer is turned on.
v The mouse is securely connected to the mouse connector on the computer.
v The mouse is clean. Refer to "Cleaning the mouse" on page 63 for further
information.
If you cannot correct the problem, have the computer serviced. Refer to the
safety and warranty information that is provided with your computer for a list of
service and support telephone numbers.
Verify that:
v There is no diskette in the diskette drive.
v The startup sequence includes the device where the operating system resides.
Usually, the operating system is on the hard disk drive. For more information,
see "Selecting a startup device" on page 53.
If you cannot correct the problem, have the computer serviced. Refer to the
safety and warranty information that is provided with your computer for a list of
service and support telephone numbers.
Verify that no keys are stuck down.
If you cannot correct the problem, have the computer serviced. Refer to the
safety and warranty information that is provided with your computer for a list of
service and support telephone numbers.
operating system)
not start)

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