Troubleshooting; Problems And Solutions; Error Messages - JVC KW-M745DBT Instruction Manual

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.
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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.
† Set the subwoofer to on. See Speaker/ X'over
setup (P.42).
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About audio operations
Radio reception is poor.
The car antenna is not extended.
† Pull out the antenna all the way.
The antenna control wire is not connected.
† Connect the wire correctly. See Connecting wires
to terminals (P.51).
Cannot select a folder.
The random play function is enabled.
† Turn off the random function.
The sound skips when an audio file is being
played.
The recording condition is bad.
† Record the file again or use another USB memory.
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Other
The Touch Sensor Tone doesn't sound.
The preout jack is being used.
† 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.
No Device (USB device)
The USB device is selected as a source although no
USB device is connected.
† Change the source to any source other than USB/
iPod. Connect a USB device, and change the source
to USB again.
Disconnected (iPod, Bluetooth audio player)
The iPod/Bluetooth audio player is selected as a
source although no iPod/Bluetooth audio player is
connected.
† Change the source to any source other than iPod/
Bluetooth. Connect an iPod/Bluetooth audio
player, and change the source to iPod/Bluetooth
again.
No Media file
The connected USB device contains no playable audio
file. Media was played that doesn't have data recorded
that the unit can play.
† See Playable Media and Files (P.54) and try
another USB device.
Troubleshooting
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English