Troubleshooting
BF-1 Owner’s Manual
77
Appendix
Troubleshooting
■
Something seems to be wrong; some malfunction seems to
have occurred.
When one of the following problems occur, immediately turn off the
power and have the device inspected by Yamaha service personnel.
• The device is chipped, cracked or deformed.
• It produces a rattling sound when shaken.
• It gives off extreme heat.
• It emits unusual smells or smoke.
• The power cannot be turned on, even though the battery is fully charged.
• Battery power is depleted immediately, despite having just fully charged the
device.
■
Buttons do not respond./Display cannot be turned on or
cannot be changed.
• A system error has occurred. Press the [RESET] switch and turn on again
(
■
Power does not turn on.
• A system error has occurred. Press the [RESET] switch and turn on again
(
• Battery power is low. Charge the battery.
■
When turning the power on, a “Memory full” message appears
and the BF-1 cannot be started up.
• There is no memory space in the device for booting up. Connect the BF-1 to
the computer and delete unnecessary files.
■
Display suddenly turns off.
• Change the Display Time setting (
■
The earphones easily drop off.
• The earphones may not be put in your ears correctly. Make sure not to
reverse the right and left earphones, and attach them correctly (
• The cable tightener may be loose. Slide the cable tightener toward your
head (