Apple twentieth anniversary mac Servicehandbuch

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Problems using the microphone
You can’t record sound using an external microphone or the microphone built into
your computer.
m If you’re using an external microphone to record, make sure your sound input source is set to
External Microphone. Open the Apple (K) menu and choose Control Panels, then open the
Monitors & Sound control panel. Click the Sound icon and choose External Microphone from the
Sound Input pop-up menu.
m If you’re using your computer’s built-in microphone to record, make sure your sound input source
is set to Internal Microphone. Open the Apple (K) menu and choose Control Panels, then open the
Monitors & Sound control panel. Click the Sound icon and choose Internal Microphone from the
Sound Input pop-up menu.
For additional help, see the information about sound in Mac OS Guide, available in the Guide (h)
menu.
Problems listening to the radio
You can’t find the Apple FM Radio application.
If the Apple FM Radio application is not anywhere on your hard disk, you need to install it from your
system software CD. See “Performing a Custom Installation” in Chapter 13.
You don’t hear anything when you open the Apple FM Radio application.
m Be sure your FM antenna is securely connected to the FM port and the antenna is raised high. See
Chapter 7, “Sound.”
m The radio sound doesn’t work if Video or S-Video is selected in the Apple Video Player application
(even if that application isn’t currently open). Open the Apple Video Player application and choose
Show Controls Window from the Windows menu. Click the video screen icon (the second button
down on the left). Choose TV as your video source. You can then quit the Apple Video Player
application. Now when you open the Apple FM Radio application, you should hear radio.
Chapter 
Twelve
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