Mask testing setups Select the sound source
Go to the Test Setup control window. (see page 221)
Select the sound source
NOTE. This feature is not available on MSO/DPO5000 Series instruments.
Your instrument is shipped with an internal speaker that some of the software features use to send a n
audible alert to the user. To enable this speaker, the sound card in your instrument must be turned off. With
the sound card off, you will not have access to standard Windows audio features, such as the ability to
listen to
amusicCD.
If you turn the sound card on, the internal speaker is disabled. You will need to connect headphones or an
amplified
speaker to the headphone jack on the instrument to hear the alerts.
NOTE. The default setting disables the sound card.
Use the
followingproceduretoturnthesoundcardonoroff.
1. Access the Device Manager:
a. From the File menu, click Minimize, or press CTRL+M to minimize the instrument application.
b. On your Windows desktop, right-click the My Computer icon.
c. Click Properties.
d. In the System Properties dialog box, click the Hardware tab.
e. Cli
ck the Device Manager button.
2. Select the Source:
a. Double-click Sound, video, and game c ontrollers.
b. Double-click SigmaTel C-Major Audio.
c. In the Device usage drop-down list, click either Usethisdevice(enable)orDonotusethisdevice
(disable).
3. Save Your Changes:
a. Click OK.
b. Close the Device Manager dialog box.
c. Close the System Properties dialog box.
226 DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series
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