Chapter 6. Troubleshooting and diagnostics

This chapter describes some basic troubleshooting and diagnostic programs. If your computer problem is not described here, see Chapter 7, “Getting information, help, and service,” on page 57 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

Verify that:

when you press the power

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

button.

electrical outlet.

 

 

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

 

make sure 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

 

safety and warranty 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 option connector rather than the one in the rear of the system

 

board. For more information, see "Connecting your computer" in the ThinkCentre

 

Safety and Warranty Guide.

 

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.

 

 

© Copyright Lenovo 2009

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Lenovo 8820, 6139, 7348, 8338, 7637, 7479, 7626, 7356, 7359, 7629, 7345, 6136 Troubleshooting and diagnostics, Basic troubleshooting
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9961, 7187, 6136, 7345, 7629 specifications

The Lenovo 7479, 7629, 9961, 8338, and 7626 are part of Lenovo's diverse and innovative range of devices that cater to varying user needs, from business professionals to casual users. Each model comes with unique features and technological capabilities aimed at enhancing productivity and user experience.

Starting with the Lenovo 7479, it’s designed with portability in mind. Its lightweight structure doesn’t compromise on performance, as it integrates the latest Intel processors, ensuring responsiveness in multitasking scenarios. The 7479 also features a vibrant display that allows users to enjoy a rich visual experience, whether for work-related tasks or media consumption. With an emphasis on security, this model includes a fingerprint reader for secure access.

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In conclusion, the Lenovo models 7479, 7629, 9961, 8338, and 7626 each offer distinct features and technological advancements, catering to different user preferences. From portability to performance and flexibility, Lenovo continues to lead in innovation, providing devices that enhance productivity and user satisfaction.
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