Troubleshooting; Audio Problems - Lenovo ThinkCentre M73z Hardware Maintenance Manual

• For Windows 8 or Windows 8.1: Open Control Panel, and then click System and Security ➙ System
➙ System Protection ➙ System Restore.
If this does not correct the problem, continue with the next step.
6. Run the diagnostic program. See "Lenovo Solution Center" on page 52 for more information.
• If the diagnostic program detects a hardware failure, contact the Lenovo Customer Support Center.
See "Lenovo Support Web site" on page 29 for more information.
• If you are unable to run the diagnostic program, contact the Lenovo Customer Support Center. See
"Lenovo Support Web site" on page 29 for more information.
• If the diagnostic program does not detect a hardware failure, continue with the next step.
7. Use an antivirus program to see if your computer has been infected by a virus. If the program detects a
virus, remove the virus.
8. If none of these actions solve the problem, seek technical assistance. See "Lenovo Support Web
site" on page 29 for more information.

Troubleshooting

Use the troubleshooting information to find solutions to problems that have definite symptoms.
If the symptom your computer is experiencing occurred immediately after you installed a new hardware
option or new software, do the following before referring to the troubleshooting information:
1. Remove the new hardware option or software. If you must remove the computer cover to remove a
hardware option, ensure that you review and follow the electrical safety information provided with your
computer. For your safety, do not operate the computer with the cover removed.
2. Run the diagnostic program to ensure that your computer is operating correctly.
3. Reinstall the new hardware option or software following the manufacturer's instructions.
Select the problem your computer is experiencing from the following list:
• "Audio problems" on page 35
• "CD problems" on page 37
• "DVD problems" on page 38
• "Intermittent problems" on page 39
• "Keyboard, mouse, or pointing device problems" on page 40
• "Monitor problems" on page 42
• "Networking problems" on page 44
• "Option problems" on page 46
• "Performance and lockup problems" on page 47
• "Printer problems" on page 49
• "Serial connector problems" on page 49
• "Software problems" on page 50
• "USB problems" on page 51

Audio problems

Select your symptom from the following list:
• "No audio in Windows" on page 36
.
Chapter 4 Troubleshooting and diagnostics
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