JVC KW-M730BT Owner's Manual
Troubleshooting
85
English
Troubleshooting
Problems and Solutions
If any trouble occurs, first check the following
table for possible problems.
NOTE
• Some functions of this unit may be disabled by
some settings made on this unit.
• What might seem to be a malfunction in your
unit may just be the result of slight misoperation
or miswiring.
or miswiring.
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About settings
• Cannot set up the subwoofer.
• Cannot set up subwoofer phase.
• No output from the subwoofer.
• Cannot set up the low pass filter.
• Cannot set up the high pass filter.
Subwoofer is not set to on.
Subwoofer is not set to on.
h Set the subwoofer to on. See Speaker/ X’over
The dual zone function is enabled.
h Set the dual zone function to off. See Zone Control
• Cannot select the output destination of the
subsource in the dual zone.
• Cannot adjust the volume of the rear speakers.
The dual zone function is disabled.
The dual zone function is disabled.
h Set the dual zone function to on. See Zone Control
• Cannot set up the equalizer.
• Cannot set up the crossover network.
The dual zone function is enabled.
The dual zone function is enabled.
h Set the dual zone function to off. See Zone Control
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About audio operations
Radio reception is poor.
The car antenna is not extended.
The car antenna is not extended.
h Pull out the antenna all the way.
The antenna control wire is not connected.
h Connect the wire correctly. See Connecting the
Cannot select a folder.
The random play function is enabled.
The random play function is enabled.
h Turn off the random function.
Cannot perform repeat play during VCD playback.
The PBC function is enabled.
The PBC function is enabled.
h Turn off the PBC function.
The specified disc does not play, but another one
plays instead.
The disc is quite dirty.
The disc is quite dirty.
h Clean the disc. See Precautions on handling discs
The disc is severely scratched.
h Try another disc instead.
The sound skips when an audio file is being
played.
The disc is scratched or dirty.
The disc is scratched or dirty.
h Clean the disc. See Precautions on handling discs
The recording condition is bad.
h Record the file again or use another disc.
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Other
The Touch Sensor Tone doesn’t sound.
The preout jack is being used.
The preout jack is being used.
h The Touch Sensor Tone cannot be output from the
preout jack.
Error Messages
When you fail to operate the unit correctly, the
cause of the failure appears as the message on
the screen.
here is an error in the speaker wiring. Please check
the connections.
Protective circuit has been activated because a speaker
cord has shorted or it has come in contact with the car
chassis.
Protective circuit has been activated because a speaker
cord has shorted or it has come in contact with the car
chassis.
h Wire or insulate the speaker cord as appropriate and
turn the power off and on again.
Hot Error
When the internal temperature of this unit rises to 60°C
or more, the protection circuit is activated and you may
not be able to operate the unit.
When the internal temperature of this unit rises to 60°C
or more, the protection circuit is activated and you may
not be able to operate the unit.
h Use the unit again after reducing the temperature
of the unit.
Mecha Error
The disc player is malfunctioning.
The disc player is malfunctioning.
h Eject the disc and try inserting it again. Contact the
JVC dealer if this indicator continues blinking or the
disc cannot be ejected.
disc cannot be ejected.
Disc Error
An unplayable disc is inserted.
An unplayable disc is inserted.
h Change the disc. See Playable Media and Files
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