
Portable Headphone Amplifier
PHA-3
Checking the battery level
Check the battery level before carrying out the headphone amplifier.
1. If the micro-USB cable (supplied) is connected to the DC IN 5V port, disconnect it.
2. Rotate the power/volume knob clockwise to turn the headphone amplifier on, and check how many times the
POWER/CHG indicator flashes in green.
Flashes three times: Substantially charged
Flashes twice: Half charged
Flashes once: Battery level is low. It is necessary to charge the battery.
Always flashing: It is necessary to charge the battery. If you continue to use the headphone amplifier without
charging, it will turn off automatically.
Note
The battery level that the indicator shows is a rough guide. The actual battery level may differ depending on the
condition of use.
4-547-524-11(4)
Copyright 2014 Sony Corporation
How to Use
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