Lenovo 3000 J Series Bedienungsanleitung PDF herunterladen (Seite 72)

Symptom Action

The keyboard does not work.

The computer does not respond

to the keyboard.

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 front or

rear of the computer.

v No keys are stuck.

If you cannot correct the problem, have the computer serviced. Refer to the

warranty and safety information that is provided with your computer for a list of

service and support telephone numbers.

The Enhanced Performance USB

Keyboard does not work.

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.

you cannot correct the problem, have the computer serviced. Refer to the

warranty and safety information that is provided with your computer for a list of

service and support telephone numbers.

The mouse does not work. The

computer does not respond to

the mouse.

Verify that:

v The computer is turned on.

v The mouse is securely connected to the mouse connector on the front or rear of

the computer.

v The mouse is clean. Refer to “Cleaning the mouse” on page 57 for further

information.

you cannot correct the problem, have the computer serviced. Refer to the

warranty and safety information that is provided with your computer for a list of

service and support telephone numbers.

The operating system will not

start.

Verify that:

v There is no diskette in the diskette drive.

The startup sequence includes the device where the operating system resides.

Usually, the operating system is on the hard disk. See “Selecting a startup

device” on page 49 for more information.

you cannot correct the problem, have the computer serviced. Refer to the

warranty and safety information that is provided with your computer for a list of

service and support telephone numbers.

The computer beeps multiple

times before the operating

system starts.

Verify that no keys are stuck down.

If you cannot correct the problem, have the computer serviced. Refer to the

warranty and safety information that is provided with your computer for a list of

service and support telephone numbers.

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 to help you diagnose

problems:

v PC-Doctor for Windows (used when diagnosing problems while running the

Windows operating system)

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