Lenovo Thinkpad L570 Hardware Maintenance Manual Download Page 36

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• Scratched (cosmetic) parts
• Distortion, deformation, or discoloration of the cosmetic parts
• Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force
• Damage caused by liquid spilled into the system
• Damage caused by the improper insertion of a PC Card or the installation of an incompatible card
• Improper disc insertion or use of an optical drive
• Fuses blown by attachment of a nonsupported device
• Forgotten computer password (making the computer unusable)
• Sticky keys caused by spilling a liquid onto the keyboard
• Use of an incorrect ac power adapter on laptop products

The following symptoms might indicate damage caused by nonwarranted activities:

• Missing parts might be a symptom of unauthorized service or modification.
• Check for obvious damage to a hard disk drive. If the spindle of a hard disk drive becomes noisy, the hard

disk drive might have been dropped or subject to excessive force.

Checkout guide

Use the following procedures as a guide to identify and correct problems with the ThinkPad notebook
computers.

Note:

The diagnostic tests are intended to test only ThinkPad products. The use of non-ThinkPad products,

prototype cards, or modified options can lead to false indications of errors and invalid system responses.

1. Identify the failing symptoms in as much detail as possible.

2. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the

operation.

Diagnosing problems

Many computer problems can be solved without outside assistance. If you experience a problem with your
computer, the first place to start is the troubleshooting information in your computer documentation. If
you suspect a software problem, see the documentation, including readme files and help information
systems, that come with the operating system or program. ThinkPad notebook computers come with a set
of diagnostic programs that you can use to help you identify hardware problems.

Diagnosing problems with Lenovo Solution Center on the Windows 7 operating system

Lenovo Solution Center is preinstalled on your computer and also is available for download at:

http://www.lenovo.com/diags

Notes:

• If you are using another Windows

operating system rather than the Windows 7, you can find the latest

information about diagnostics for your computer at:

http://www.lenovo.com/diagnose

• If you are unable to isolate and repair the problem yourself after running Lenovo Solution Center, save and

print the log files created by the program. You need the log files when you speak to a Lenovo technical
support representative.

Lenovo Solution Center enables you to troubleshoot and resolve computer problems. It combines diagnostic
tests, system information collection, security status, and support information, along with hints and tips for
optimal system performance.

L570 Hardware Maintenance Manual