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Troubleshooting
Symptom
Sound cannot be heard.
• Adjust the volume to the optimum level.
• Check the cords and connections.
"MISWIRING CHECK WIRING
THEN PWR ON" appears.
"PROTECTING SEND SERVICE"
appears.
Source cannot be selected.
The unit does not work at all.
Correct characters are not
• This unit can only display uppercase letters, numbers,
displayed.
• Depending on the display language you have selected
(For KD-T721BT)
"ERROR"/"FAILED"
• Radio reception is poor.
• Static noise while listening
to the radio.
Disc cannot be ejected.
Noise is generated.
"IN DISC" appears and disc
cannot be ejected.
"PLEASE EJECT" appears.
36
ENGLISH
Remedy
Turn the power off, then check to be sure the terminals of
the speaker wires are insulated properly. Turn the power
on again.
Send the unit to the nearest service center.
Check the [SOURCE SELECT] setting. (Page 6)
Reset the unit. (Page 4)
and a limited number of symbols.
(page 6), some characters may not be displayed
correctly.
Your steering remote controller is not compatible, learning
may not be completed. Consult your car audio dealer for
details.
Connect the antenna firmly.
Press and hold
to forcibly eject the disc. Be careful not
to drop the disc when it is ejected. If this does not solve
the problem, reset the unit (page 4).
Skip to another track or change the disc.
Make sure nothing is blocking the loading slot when you
eject the disc.
Press , then insert the disc correctly.
Symptom
Remedy
Playback order is not as
Optical disc, the files are played in the order which they
intended.
were recorded.
USB device, the folders are played in the order of creation
(date and time). The files within each folder are played in
the order of the file name (alphabet).
Elapsed playing time is not
This depends on the recording process earlier (disc/USB).
correct.
"NOT SUPPORT" appears and
Check whether the track is a playable format.
track skips.
(Page 32, 33)
"READING" keeps flashing.
• Do not use too many hierarchical levels and folders.
• Reload the disc or reattach the device (USB/iPod/
iPhone).
"UNSUPPORTED DEVICE"
• Check whether the connected USB device is compatible
appears.
with this unit and ensure the file systems are in
supported formats. (Page 33)
• Reattach the USB device.
"UNRESPONSIVE DEVICE"
Make sure the USB device is not malfunction and reattach
appears.
the USB device.
"USB HUB IS NOT
This unit cannot support a USB device connected via a
SUPPORTED" appears.
USB hub.
"CANNOT PLAY" appears.
Connect a USB device that contains playable audio files.
• The source does not
The USB port is drawing more power than the design
change to "USB" when
limit. Turn the power off and unplug the USB device.
you connect a USB device
Then, turn on the power and reattach the USB device.
while listening to another
If this does not solve the problem, turn the power off and
source.
on (or reset the unit) before replacing with another USB
• "USB ERROR" appears
device.
The iPod/iPhone does not
• Check the connection between this unit and iPod/iPhone.
turn on or does not work.
• Disconnect and reset the iPod/iPhone using hard reset.
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