User Manual

Solution: The control is designed to compensate for minor differences in balance and does not
completely mute either channel.
• Problem: There is no volume control for MIDI sound in the Volume Mixer window.
Solution: Use the hardware volume control. This is because the built-in synthesizer software does not
support the control.
• Problem: The sound cannot be turned off even if I set the Master volume control at minimum.
Solution: You still can hear some sound even though you have set the Master volume control at minimum.
To turn off the sound completely, go to the Master volume control and select Mute Speaker/HP.
• Problem: When I connect headphones to my computer while playing sound, a speaker does not produce
sound.
Solution: When the headphones are attached, the streaming is automatically redirected to it. If you want
to listen to sound from the speakers again, ensure that you set those speakers as the default device. For
more information, see the help information system for Realtek HD Audio Manager.
• Problem: Sound does not come from a headphone or a speaker, or the computer cannot record sounds.
Solution: To switch from one device to another (for example, from a speaker to a headphone, or from an
external microphone to a built-in microphone), do the following:
1. Go to Control Panel, and ensure that you view Control Panel by Category.
2. Click Hardware and Sound.
3. Click the SmartAudio icon.
4. Ensure that the computer is in MULTI-STREAM mode in the Device advanced settings window.
5. In the Volume Mixer window, select the device you want, for example, speakers.
6. Play any sound through a music program (for example, Windows Media Player). Ensure that sound
comes from the speakers now.
7. Then, if you would like to switch to a headphone, close the music program.
8. Go to the Volume Mixer window. Then select another device (for example, the headphone).
9. Play any sound through the music program. Ensure that sound comes from the headphone attached
directly to the system. For more information, see the help information system of the SmartAudio
program.
Note: The Volume Mixer window of SmartAudio displays all audio devices detected in the system,
such as speakers for a playback device, or a built-in microphone for a recording device. A check
mark beside the audio device shows that the device has been selected.
Fingerprint reader problems
• Problem: The surface of the reader is dirty, stained, or wet.
Solution: Gently clean the surface of the reader with a dry, soft, lint-free cloth.
• Problem: The reader often fails to enroll or authenticate your fingerprint.
Solution: If the surface of the reader is dirty, stained, or wet, gently clean the surface of the reader with a
dry, soft, lint-free cloth.
For tips on how to maintain the fingerprint reader, see “Using the fingerprint reader” on page 56.
Battery problems
• Problem: The battery cannot be fully charged in the standard charge time when the computer is powered
off.
Solution: The battery might be over-discharged. Do the following:
92
A475 User Guide