19ENGLISH |Symptom RemedySound cannot be heard. • Adjust the volume to the optimum level.• Check the cords and connections.“PROTECT” appears and nooperations can be done.Check to be sure the terminals of the speaker wires areinsulated properly, then reset the unit. If this does notsolve the problem, consult your nearest service center.• Sound cannot be heard.• The unit does not turn on.• Information shown on thedisplay is incorrect.Clean the connectors. ( 2)The unit does not work at all. Reset the unit. ( 3)For KMR-D558BT :The Auto Power Off function(that turns the power off after20 minutes when in standbymode) does not work.Make sure [OFF] is selected for [DEMO MODE]. ( 4)• Radio reception is poor.• Static noise while listening tothe radio.• Connect the antenna firmly.• Pull the antenna out all the way.“NA FILE” appears. Make sure the disc contains supported audio files.( 18)“NO DISC” appears. Insert a playable disc into the loading slot.“TOC ERROR” appears. Make sure the disc is clean and inserted properly.“PLEASE EJECT” appears. Reset the unit. If this does not solve the problem,consult your nearest service center.Disc cannot be ejected. Press and hold M to forcibly eject the disc. Be carefulnot to drop the disc when it is ejected. If this does notsolve the problem, reset the unit. ( 3)About iHeartRadio• iHeartRadio® is a third-party service, therefore the specifications are subject to changewithout prior notice. Accordingly, compatibility may be impaired or some or all of theservices may become unavailable.• Some iHeartRadio® functionality cannot be operated from this unit.About Bluetooth• Depending on the Bluetooth version of the device, some Bluetooth devices may not be ableto connect to this unit.• This unit may not work with some Bluetooth devices.• Signal conditions vary, depending on the surroundings.• For more information about Bluetooth, visit the following website:www.kenwood.com/cs/ce/MORE INFORMATION TROUBLESHOOTINGEN_KDC_X598_KWK0_f.indd 19 8/11/2013 5:11:41 PM