Troubleshooting - Yamaha WS-B1A Owner's Manual

Troubleshooting

Try following the instructions described in "Troubleshooting" first when the unit does not function
properly. If an error occurs, the lamp flashes to notify you. See "List of lamp displays" ( p. 13) for
details.
If the unit does not function properly after following the instructions to solve the problem, restart or
initialize it. ( p. 12)
If the unit still does not function properly even after following these instructions, turn off the unit and
contact the nearest authorized Yamaha dealer or service center.
The unit cannot be charged / It takes a long time to charge
A USB power adapter that is not compatible with the unit is being used.
Use a USB power adapter that can output DC 5 V (2 A or more). ( p. 5)
The USB power adapter and this unit are not properly connected.
Check that all connections are made properly. ( p. 5)
Ambient temperature is too high or too low.
Charge the unit within the temperature range of 5°C to 35°C. ( p. 5)
Charging takes a long time.
It is possible that charging is stopped. Disconnect and reconnect the USB cable and charge the
unit again. ( p. 5)
The protection circuitry of this unit has been activated.
Check the lamp display. ( p. 13)
The unit is connected to a USB charging compatible port on a computer.
This function is not guaranteed. Use a USB power adapter that can output DC 5 V (2 A or more).
8
En