14Symptom RemedyBluetooth®No Bluetooth device isdetected.• Search from the Bluetooth device again.• Reset the unit. (➜ 3)Pairing cannot be made. • Make sure you have entered the same PIN code to both the unitand Bluetooth device.• Delete pairing information from both the unit and the Bluetoothdevice, then perform pairing again.“DEVICE FULL” appears. The number of registered devices has reached its limit. Retryafter deleting an unnecessary device.Echo or noise occurs. • KDC-BT43U : Adjust the microphone unit’s position. (➜ 8)• Check the [ECHO LEVEL] setting. (➜ 10)Phone sound quality ispoor.• Reduce the distance between the unit and the Bluetooth device.• Move the car to a place where you can get a better signal reception.Voice calling method isnot successful.• Use voice calling method in a more quiet environment.• Reduce the distance from the microphone when you speak thename.• Make sure the same voice as the registered voice tag is used.“NOT SUPPORT” appears. The connected phone does not support Voice Recognition feature.“ERROR” appears. Try the operation again. If “ERROR” appears again, check if thedevice supports the function you have tried.Sound is beinginterrupted or skippedduring playback of aBluetooth audio player.• Reduce the distance between the unit and the Bluetooth audioplayer.• Turn off, then turn on the unit and try to connect again.• Other Bluetooth devices might be trying to connect to the unit.The connected Bluetoothaudio player cannot becontrolled.• Check whether the connected Bluetooth audio player supportsAudio/Video Remote Control Profile (AVRCP). (Refer to theinstructions of your audio player.)• Disconnect and connect the Bluetooth player again.“HF ERROR” appears. Reset the unit and try the operation again. If this does not solvethe problem, consult your nearest service center.TROUBLESHOOTINGSymptom Remedy“NO DEVICE” appears. Connect a USB device, and change the source to USB again.“COPY PRO” appears. A copy-protected file is played.“NO MUSIC” appears. Connect a USB device that contains playable audio files.“NA DEVICE” appears. Connect a supported USB device, and check theconnections.“USB ERROR” appears. • Remove the USB device, turn the unit off, then turn it onagain.• Try to connect another USB device.“iPod ERROR” appears. • Reconnect the iPod.• Reset the iPod.Noise is generated. Skip to another track or change the disc.Tracks do not play back as youhave intended them to play.Playback order is determined when files are recorded.“READING” keeps flashing. Do not use too many hierarchical levels or folders.Elapsed playing time is notcorrect.This is caused by how the tracks are recorded.The number of songs contained inthe “SONGS” category of this unitis different from the iPod/iPhone.Podcast files are not counted on this unit as this unit doesnot support the playback of podcast files.Correct characters are notdisplayed (e.g. album name).This unit can only display uppercase letters, numbers, anda limited number of symbols. Uppercase Cyrillic letters canalso be displayed if [RUSSIAN SET] is set to [ON]. (➜ 4)