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The earbuds of the supplied headphones are the wrong size or are being worn wrongly.
Change the size of the earbuds or adjust the earbud position to fit your ears snugly and
comfortably [Details]. If you change the size of earbuds, turn to install them firmly on the
headphones to prevent from detaching and remaining in your ears.
The microphone sensitivity is not properly adjusted.
Your Walkman is adjusted at the factory to maximize the effect of the Noise Canceling
function. However, you may attain more effectiveness by heightening or lowering the
sensitivity of the microphone embedded in the supplied headphones. Readjust the Noise
Canceling function [Details].
Your Walkman is used in a quiet place.
The Noise Canceling function may not be effective in a quiet place or depending on the
type of noise.
The selected digital filter is not suitable for reducing the ambient noise at the location.
Set [Select NC Environment] to the most suitable setting for the location [Details].
The Noise Canceling function mainly reduces the ambient noise in the low frequency bands
and has less effect on ambient noise in the higher frequency bands, such as voices and
ringing tones. It has no effect on certain sounds.
[VPT (Surround)] setting or [Clear Stereo] function is not effective.
When outputting to external audio speakers using the cradle (not supplied), [VPT (Surround)]
settings and the [Clear Stereo] function may not be effective because your Walkman is
designed for compatible headphones only. This is not a malfunction.
Your Walkman does not respond to any button operations.
The HOLD switch is set to the HOLD position.
Slide the HOLD switch on the right side to the opposite position [Details].
Your Walkman contains moisture condensation.
Wait a few hours to let your Walkman dry out.
The remaining battery power is low or insufficient.
Charge the battery by connecting your Walkman to a running computer [Details].
If you charge the battery and nothing changes, press the RESET button to reset your
Walkman [Details].
Your Walkman is connected to the computer via USB connection.
Disconnect the USB connection, then operate your Walkman.
Playback does not stop.
With your Walkman, there is no difference between stopping and pausing. When you press
the
button, appears and playback pauses/stops.
There is insufficient volume.
[AVLS (Volume Limit)] is enabled.
Disable [AVLS (Volume Limit)] [Details].
There is no sound from the right channel of the headphones. Or the right
channel sound is heard from both sides of the headphones.
The headphone plug is not fully inserted.
If the headphones are not connected correctly, sound will not be output properly. Insert the
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