Sony NWZ-A829 Marketing Specifications (Black Model) Operation Manual page 127

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Troubleshooting
Operation
(continued)
Symptom
Noise is generated.
"VPT(Surround)" setting
or "Clear Stereo" function
is not effective.
Cannot see the video, but
can hear it.
Buttons do not work.
Cause/Remedy
 A device emitting radio signals, such as a mobile
phone is being used near the player.
 When using devices such as mobile phones, keep
them away from the player.
 Music data imported from CDs, etc., is damaged.
 Delete the data, then import and transfer it again.
When importing data to your computer, close any
other applications to avoid data damage.
 Transferred files are not in a playable format. For
details, see "Supported file format" of
"Specifications" (  page 154).
 Convert the ATRAC audio data using the
supplied MP3 Conversion Tool.
 Some songs may not play back, depending on
certain file specifications.
 Bluetooth connection is unstable.
 You may hear noise under certain communicating
conditions. Change the location and restart
communication.
 When outputting to external audio speakers using
the optional cradle, "VPT(Surround)" settings and
the "Clear Stereo" function may not be effective
because the player is designed for compatible
headphones only. This is not a malfunction.
 If you have not applied the sound effects in "Sound
Effect Preset, " "VPT(Surround)" does not work
during Bluetooth communication (  page 92).
 The file is a . 3gp file. (.3gp only supports audio.)
 The video file is not in a video folder.
 Place the video files in a video folder by dragging
and dropping.
 The HOLD switch is set to the HOLD position.
 Slide the HOLD switch to the opposite position
(  page 11).
 The player contains moisture condensation.
 Wait a few hours to let the player dry.
 The remaining battery power is low or insufficient.
 Charge the battery by connecting the player to a
running computer (  page 114).
 If you charge the battery and nothing changes,
press the RESET button to reset the player ( 
page 124).
 While "Connecting" is being displayed, you cannot
operate the player.
 Disconnect the USB connection, then operate the
player.
Continued 