Bluetooth problem
Symptom: Sound does not come from the Bluetooth headset or headphone but comes from the local
speaker even though the headset or headphone is connected using the Headset profile or AV profile.
Action: Do the following:
1. Exit the application that uses the sound device (for example, Windows Media Player).
2. Open Control Panel.
Note:
For detailed information on how to open Control Panel on Windows 8 and Windows 8.1, see
“Accessing Control Panel on the Windows 8 or Windows 8.1 operating system” on page 18.
3. Click
Hardware and Sound
➙
Sound
.
4. Select the
Playback
tab.
5. If you are using the Headset profile, select
Bluetooth Hands-free Audio
and click the
Set Default
button. If you are using the AV profile, select
Stereo Audio
and click the
Set Default
button.
6. Click
OK
to close the Sound window.
Note:
Bluetooth is supported only on some computer models.
Option problems
Use this information to diagnose problems with Lenovo hardware options that do not have their own
troubleshooting information.
Select your symptom from the following list:
•
“An option that was just installed does not work” on page 119
•
“An option that previously worked does not work now” on page 119
An option that was just installed does not work
Symptom: An option that was just installed does not work.
Action: Verify that:
• The option is designed for your computer.
• You followed the installation instructions supplied with the option and the installation instructions provided
with your computer, and all option files (such as device drivers, if required) are installed correctly.
• You have not loosened other installed options or cables.
• If the option is an adapter, you have provided enough hardware resources for the adapter to function
correctly. See the documentation supplied with the adapter (as well as the documentation for any other
installed adapters) to determine the resources required for each adapter.
If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical
assistance, see Chapter 11 “Getting information, help, and service” on page 125.
An option that previously worked does not work now
Symptom: An option that previously worked does not work now.
Actions:
• Verify that all option hardware and cable connections are secure.
• If the option comes with its own test instructions, use those instructions to test the option.
• If the failing option is a SCSI option, verify that:
Chapter 10
.
Troubleshooting and diagnostics
119
Summary of Contents for ThinkCentre M73
Page 1: ...ThinkCentre M73 User Guide Machine Types 10AX 10AY 10DK 10DL 10DM and 10DN ...
Page 6: ...iv ThinkCentre M73 User Guide ...
Page 26: ...14 ThinkCentre M73 User Guide ...
Page 34: ...22 ThinkCentre M73 User Guide ...
Page 40: ...28 ThinkCentre M73 User Guide ...
Page 44: ...32 ThinkCentre M73 User Guide ...
Page 104: ...92 ThinkCentre M73 User Guide ...
Page 118: ...106 ThinkCentre M73 User Guide ...
Page 140: ...128 ThinkCentre M73 User Guide ...
Page 146: ...134 ThinkCentre M73 User Guide ...
Page 150: ...138 ThinkCentre M73 User Guide ...
Page 153: ...Appendix E China Energy Label Copyright Lenovo 2013 2015 141 ...
Page 154: ...142 ThinkCentre M73 User Guide ...
Page 156: ...3 Follow the instructions on the screen 144 ThinkCentre M73 User Guide ...
Page 160: ...148 ThinkCentre M73 User Guide ...
Page 161: ......
Page 162: ......