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Error Displays/messages - Sony MEX-BT5750U Operating Instructions Manual

Bluetooth audio system.
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The volume of the connected audio device is
low (high).
Volume level will differ depending on the audio
t Adjust the volume of the connected audio device or
this unit.
No sound is heard from the Bluetooth audio
The audio device is paused.
t Cancel pause of the audio device.
The sound skips during playback of a
Bluetooth audio device.
• Reduce the distance between the unit and the
Bluetooth audio device.
• If the Bluetooth audio device is stored in a case
which interrupts the signal, remove the audio device
from the case while using.
• Several Bluetooth devices or other devices which
emit radio waves are used nearby.
t Turn off the other devices.
t Increase the distance between the unit and the
other devices.
• The playback sound stops momentarily when the
connection between this unit and the cellular phone is
being made. This is not a malfunction.
The connected Bluetooth audio device cannot
be controlled.
Check that the connected Bluetooth audio device
supports AVRCP.
Some functions do not work.
Check that the connecting device supports the
functions in question.
The name of the other party does not appear
when a call is received.
• The other party is not stored in the phonebook.
t Store in the phonebook (page 28).
• The calling phone is not set to send the phone
A call is answered unintentionally.
• The connecting phone is set to start a call
• "Auto Answer" of this unit is set to "Short" or
"Long" (page 22).
Pairing failed in Time Over.
Depending on the connecting device, the time limit for
pairing may be short. Try completing the pairing
within the time by setting a single digit passcode.
Bluetooth function cannot operate.
Turn off the unit by pressing (OFF) for 2 seconds,
then turn the unit on again.
No sound is output from the car speakers
during handsfree call.
If the sound is output from the cellular phone, set the
cellular phone to output the sound from the car
The external microphone does not work.
The setting of the microphone is not correct.
t Set "MIC Select" to "External" (page 22).

Error displays/Messages

Busy now... Please try later
This unit is busy.
t After waiting a moment, try again.
The unit is confirming the connection of a USB device.
t Wait until confirming the connection is finished.
Connection Failed
Phonebook Access connection has been terminated
from the cellular phone.
t Perform Phonebook Access again.
• Device List is empty.
• Recent Call is empty.
• Cellular phone phonebook is empty.
• The disc is dirty or inserted upside down.*
t Clean or insert the disc correctly.
• A blank disc has been inserted.
• The disc cannot play due to a problem.
t Insert another disc.
• USB device was not automatically recognized.
t Reconnect it again.
• Press Z to remove the disc.
• Phonebook content has been changed during cellular
phone access.
t Perform Phonebook Access again.
Error - Please Initialize Bluetooth Setting Data
A memory error has occured.
t Enter the Bluetooth Settings menu, then select
The connection of speakers/amplifiers is incorrect.
t See the installation guide manual of this model to
check the connection.
HF Device is not available
A cellular phone is not connected.
t Connect to a cellular phone.
Hubs Not Supported
USB hub is not supported on this unit.
Invalid Code
Password is incorrect.
t If you forget the password, initialize via the
Bluetooth Settings menu.
The CD changer is loading the disc.
t Wait until loading is complete.
Local Seek +/–
The local seek mode is on during automatic tuning.
NO Device
(SOURCE) is selected without a USB device
connected. A USB device or a USB cable has been
disconnected during playback.
t Be sure to connect a USB device and USB cable.
NO Devices Found
This unit cannot detect a connectable device.
t Check the Bluetooth setting of the connecting



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