Lenovo 3000 J Series Bedienungsanleitung PDF herunterladen (Seite 71)

Chapter 7. Troubleshooting and diagnostics

This chapter describes some basic troubleshooting and diagnostic programs. If your

computer problem is not described here, see Chapter 8, “Getting information, help,

and service,” on page 61 for additional troubleshooting resources.

Basic troubleshooting

The following table provides information to help you troubleshoot your computer

problem.

Symptom Action

The computer does not start

when you press the power

button.

Verify that:

v The power cord is plugged into the rear of the computer and into a working

electrical outlet.

v If your computer has a secondary power switch on the back of the computer,

ensure that it is switched on.

v The power indicator on the front of the computer is on.

v The voltage is set to the correct setting for your country.

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 monitor screen is blank. Verify that:

v The monitor cable is securely attached to the rear of the monitor and to the

rear of the computer.

v The monitor power cord is plugged into the monitor and into a working

electrical outlet.

v The monitor is turned on and the brightness and contrast controls are set

correctly.

v The voltage is set to the correct setting for your country.

v The monitor signal cable is securely connected to the monitor and to the

monitor connector on the computer.

Note:

If your computer has two monitor connectors, verify that your monitor is

connected to the one in the AGP option connector rather than the one in the rear

of the system board. For more information, “Connecting your computer” on page

3.

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.

Lenovo 3000 J Series Bedienungsanleitung Seite 71