Portable Headphone Amplifier
PHA-3
When connecting to a computer, there is no sound or the sound is not played back properly.
The computer does not recognize the headphone amplifier as a USB device.
Restart your computer.
Install the driver software for Windows “Sony USB Device Driver” on your Windows computer.
Turn up the volume of your computer or software.
If the headphone amplifier was connected to the computer while using audio playback software, restart the audio
playback software.
When playing High-Resolution Audio format files on your computer with the headphone amplifier, use the audio
playback software compatible with the High-Resolution Audio format files, such as “Hi-Res Audio Player.”
When an audio playback software is not installed, install it on your computer.
If the computer enters standby, sleep, or hibernation mode, while the music is played back by using the audio
playback software, restart the audio playback software.
Check that the sound device settings of your computer are correct.
Windows 8/8.1:
Press and hold the [Windows] and [X] keys to display the menu, select the [Control Panel], [Hardware and Sound], [Sound],
[Playback] tab, select [Sony PHA-3] for the playback device, then click [Set default].
Windows 7/Windows Vista:
Click the [Start] menu, select the [Control Panel], [Hardware and Sound], [Sound], [Playback] tab, select [Sony PHA-3] for
the playback device, then click [Set default].
Macintosh:
Click the [Apple] menu, select the [System Preferences], [Sound], [Output] tab, then select [PHA-3] for [Select a device for
sound output].
The volume control of your computer or the audio playback software is set to mute. Cancel the setting.
The CD-ROM drive does not support the digital reproduction function. Use a CD-ROM drive that supports the digital
reproduction function.
Digitally broadcast sound may not be output from a computer’s USB port. In this case, connect the AUDIO IN/LINE
OUT jack of the headphone amplifier to the analog audio output of the computer.
Related Topic
Installing the driver software on a Windows computer
Installing “Hi-Res Audio Player” on a computer
4-547-524-11(4)
Troubleshooting
100