Chapter 6. Troubleshooting and diagnostic programs

This chapter provides information about some basic troubleshooting and diagnostic programs. If your computer problem is not described in this chapter, see Chapter 7, “Getting information, help, and service,” on page 33 for additional troubleshooting resources.

This chapter contains the following topics:

v“Basic troubleshooting”

v“Diagnostic programs” on page 28

v“Cleaning the mouse” on page 30

Basic troubleshooting

The following table provides some basic information to help you troubleshoot your computer problems.

Note: If you cannot solve the problem after doing the basic troubleshooting, have

 

the computer serviced. Refer to the ThinkCentre Safety and Warranty Guide

 

that came with your computer for the safety and warranty information and

 

the list of Lenovo Support telephone numbers.

 

 

 

Symptom

 

Action

 

 

 

The computer does not start

 

Verify that:

when you press the power

 

v The power cord is correctly connected to the rear of the computer and to a

switch.

 

working electrical outlet.

 

 

 

 

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

 

 

v The computer voltage matches the voltage available at the electrical outlet for

 

 

your country or region.

 

 

 

The monitor screen is blank.

 

Verify that:

 

 

v The power cord is correctly connected to the rear of the computer and to a

 

 

working electrical outlet.

 

 

v The computer voltage matches the voltage available at the electrical outlet for

 

 

your country or region.

 

 

v The brightness and contrast controls are set correctly.

The USB keyboard or mouse

 

Verify that:

does not work.

 

v The computer is turned on.

 

 

v The USB keyboard or mouse is correctly connected to one of the USB

 

 

connectors on the computer.

 

 

v For the USB keyboard, no keys are stuck.

 

 

v The USB mouse is clean. Refer to “Cleaning the mouse” on page 30.

© Copyright Lenovo 2010

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Lenovo 1165, 994, 401, 1186, 1184, 2565 manual Troubleshooting and diagnostic programs, Basic troubleshooting

994, 1184, 1165, 2565, 1186 specifications

Lenovo has established a solid reputation in the tech industry, and certain models have particularly highlighted its innovation and commitment to quality. Among these, the Lenovo 401, 1186, 2565, 1165, and 1184 stand out, each offering a unique blend of features and technologies aimed at enhancing user experience.

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