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KOS-A300
Troubleshooting Guide
Some functions of this unit may be disabled by
some settings made on this unit.
! • Cannot set up Display.
▲
<Cancel the Demonstration mode> (page 5) is not
turned off.
What might seem to be a malfunction in your unit
may just be the result of slight misoperation or
miswiring. Before calling service, first check the
following table for possible problems.
General
? The sound skips when an Audio file is being
played.
✔ The recording condition is bad.
☞ Record the media again or use another media.
? The unit cannot be turned ON.
✔ The unit is malfunctioning for some reason.
☞ Turn off the vehicle engine switch and then on.
✔ The terminal connection is not appropriate.
☞ Check the connection of the controller, etc.
? “Tagging” for the Function item is not indicated on
the display.
✔ The tag is being stored to this unit or iPod.
☞ Perform “Tagging” after “Tag Stored” or “Tag
Transfer Completed” is indicated on the display.
Hands-free
? No sound is heard from the rear speakers.
✔ You are talking in the hand-free talk mode.
☞ No sound is heard from the rear speakers in the
hands-free talk mode.
? No beep is heard at reception of an incoming call.
✔ No beep is heard depending on the type of your
cell-phone.
☞ The “MENU”
> “Call Beep” of <Function Control>
(page 6) is set ON.
? Voice is not recognized.
✔ The vehicle window is open.
☞ If the surrounding noise is large, voice cannot be
recognized properly. Close the vehicle windows
to reduce noise.
✔ Small voice.
☞ If voice is too small, it cannot be recognized
properly. Speak into the microphone a little more
loudly and naturally.
✔ The person speaking the voice tag is not the one
who registered it.
☞ Only the voice of the person who registered the
voice tag can be recognized.
Bluetooth audio source
? The Bluetooth audio player cannot be registered
(pairing).
✔ The PIN code is fixed.
☞ When a PIN code is specified in the Instruction
Manual for Bluetooth Audio Player, register it
with reference to <Registering PIN Code> (page
24) to register the Bluetooth audio player. If no
PIN code is specified in the Instruction Manual,
try “0000”.
? The sound from the Bluetooth audio player is
intermitent.
✔ The distance between this unit and audio player is
too far.
☞ Move the audio player nearer to this unit.
✔ Another Bluetooth device is affecting the Bluetooth
communication.
☞ Turn off another Bluetooth device.
☞ Move another Bluetooth device away from this
unit.
✔ Another Bluetooth device or profile is used for
communication.
☞ The downloading of the Phone book or the SMS
disconnects the sound.
The messages shown below display your
systems condition.
NA FILE: An Audio file is played with a format that this
unit can’t support.
Copy Protection:
A copy-protected file is played.
Read Error: The file system of the connected USB device
is broken.
➪ Copy the files and folders for the USB
device again. If the error message is still
displayed, initialize the USB device or use
other USB devices.
No Device: The USB device is selected as a source
although no USB device is connected.
➪ Change the source to any source other
than USB. Connect an USB device, and
change the source to USB again.
