Confirming the “WALKMAN” status by the OPR lamp
The OPR lamp (
) indicates the condition of the battery or settings by changing color and blinking patterns.
When you turn on your “WALKMAN”
Starting up
(Lights up, blinks and then stays lit)
Your Walkman is ready to use when the OPR lamp turns green after blinking in orange.
An error has occurred
(Lights up for 10 seconds)
Turn the power off and then back on.
During playback or pause
Battery has been charged enough
The OPR lamp lights up in standby mode and blinks during playback.
Current remaining battery charge is low
and 
The OPR lamp lights up in standby mode and blinks during playback. Charge the battery.
Battery is discharged
and
(Lights up)
The battery has no charge left. Your Walkman beeps and the voice guidance “Low battery” is heard, and then becomes inoperable.
Music is not played back due to an error
(Blinks twice)
While connected to a computer
Battery is being charged
(Lights up)
Battery has been fully charged
(Goes out)
Accessing the Walkman via a USB connection, such as when data is being transferred
(Blinks quickly)
You are trying to charge the battery in an ambient temperature outside the range of 5 ºC (41 ºF) to 35 ºC (95 ºF)
(Blinks twice)