Sony 4-130-181-52(1) 用户手册

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页码 56
DR-BT101_4-130-181-52(1)
24
US
When charging
Charging cannot be done.
  Check that the unit and the computer 
are firmly connected by the USB cable.
  Check that the computer is turned on.
  Check that the computer is not in 
standby, sleep or hibernation mode.
Charging time is too long.
  Check that the unit and the computer 
are directly connected, not via a USB 
hub.
The unit cannot be recognized 
by a computer.
  The USB cable is not connected properly 
to the USB port of the computer. 
Connect the USB cable again.
  Check that the unit and the computer 
are directly connected, not via a USB 
hub.
  A problem may occur with the 
connected USB port of the computer. 
Connect to another USB port if it is 
available.
  Try the USB connection procedure again 
in cases other than those stated above.
When listening to music
No sound
  Bluetooth device are turned on.
  A2DP 
Bluetooth connection is not made 
between this unit and the Bluetooth 
device. Make an A2DP Bluetooth 
connection (page 14).
  Check that music is being played back by 
the Bluetooth device.
  Check that the volume of the unit is not 
set too low.
  Turn up the volume on the connected 
device if necessary.
  Pair this unit and 
Bluetooth device again 
(page 10).
Low sound level
  Turn up the volume of this unit.
  Turn up the volume on the connected 
device if necessary.
Low sound quality
  Switch the 
Bluetooth connection to 
A2DP (Advanced Audio Distribution 
Profile) when HSP (Headset Profile) is 
set.
Sound skips frequently during 
playback.
  Reception condition of this unit may 
have become unstable due to improper 
matching of the bit-rate setting for the 
music transmitted from the Bluetooth 
device and the environment in which 
this unit is used. *
1
 
Terminate A2DP Bluetooth connection 
by operating the Bluetooth device. While 
this unit is turned on, press and hold 
 for about 7 seconds to lower the 
setting of receivable bit rate. *
2
*
1
  Bit rate is a numerical value which 
represents data transmission volume 
per second. The higher the bit rate, in 
general, the better quality the sound 
will be. This unit can receive high bit 
rate music but sound skipping may 
occur depending on the usage 
environment.
*
2
  When bit rate setting is completed, 
the indicator (blue) flashes once. The 
above operations may not reduce the 
sound skip depending on the usage 
environment. To reset to the original 
setting, press and hold  again for 
about 7 seconds. The indicator (blue) 
flashes twice.