Cd Problems - Lenovo ThinkCentre M72e Hardware Maintenance Manual

If these actions do not correct the problem, run the diagnostic programs (see "Lenovo Solution Center" on
page 54 for instructions). If you need technical assistance, see "Additional information resources" on page 34.
An audio disc or AutoPlay-enabled disc does not automatically play when it is
inserted into a drive
Symptom: An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a drive
Action: See "CD problems" on page 40.
Sound comes from one external speaker only
Symptom: Sound comes from one external speaker only.
Actions:
• Ensure that the speaker cable is inserted completely into the connector on the computer.
• Make sure the cable that attaches the left speaker to the right speaker is securely connected.
• Double-click the speaker icon in the Windows notification area. A master volume-control window opens.
Verify that the Balance settings are set correctly.
If these actions do not correct the problem, you might have a failing speaker. Have the speaker serviced. If
you need technical assistance, see "Additional information resources" on page 34.
No audio in DOS applications or games
Symptom: No audio in DOS applications or games
Actions:
• Make sure the DOS application or game is configured to use SoundBlaster Pro or SoundBlaster
emulation. Refer to the documentation that comes with the application or game for instructions on
setting sound-card settings.
• If these actions do not correct the problem, run the diagnostic programs (see "Lenovo Solution Center"
on page 54 for instructions). If you need technical assistance, see "Additional information resources"
on page 34.

CD problems

Select your symptom from the following list:
• "An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a CD
drive" on page 40
• "A CD or DVD does not work" on page 41
• "Unable to use a startable (bootable) recovery medium, such as the Product Recovery CD, to start
your computer" on page 41
An audio disc or AutoPlay-enabled disc does not automatically play when it is
inserted into a CD drive
Symptom: An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into
a CD drive.
Actions:
• If you have multiple CD or DVD drives installed (or a combination of CD and DVD drives), try inserting the
disc into the other drive. In some cases, only one of the drives is connected to the audio subsystem.
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ThinkCentre Hardware Maintenance Manual