JVC KW-AVX840 Manuel D'instructions page 63

Symptom
Phone sound quality is poor.
The sound is interrupted or skipped while
using a Bluetooth audio player.
The connected audio player cannot be
controlled.
Bluetooth device does not detect the unit.
The unit does not make pairing with the
Bluetooth device.
Echo or noise occurs.
The unit does not respond when you try to
copy the phone book to the unit.
Remedy/Cause
• Reduce the distance between the unit and the
Bluetooth mobile phone.
• Move the car to place where you can get a better signal
reception.
• Reduce the distance between the unit and the
Bluetooth audio player.
• Disconnect the device connected for Bluetooth phone.
• Turn off, then turn on the unit.
• (When the sound is not yet restored) connect the player
again.
Check whether the connected audio player supports AVRCP
(Audio Video Remote Control Profile).
• Check whether the Bluetooth adapter (KS-UBT1) is
inserted correctly.
• Search from the Bluetooth device again.
• When "Waiting..." appears on the screen, press [Cancel]
then connect a Bluetooth device.
Enter the same PIN code for both the unit and target
device. If the PIN code of the device is not indicated on its
instructions, try "0000" or "1234."
Adjust the microphone unit position.
You may have tried to copy the same entries (as stored)
to the unit.
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