Troubleshooting - JVC KW-ADV794 Instructions Manual

Troubleshooting

What appears to be trouble is not always serious. Check the following points before calling a service center.
• For operations with the external components, refer also to the instructions supplied with the adapters used for the
connections (as well as the instructions supplied with the external components).
• Messages (enclosed in " ") in the tables below are shown in the language selected on <Text Language> (☞
page 46). Messages described here are in the language of this manual.
If the following messages appear
Message
"No Signal"
"Miswiring Check wiring
connection and then reset
unit"
"Warning Check wiring
connection and then reset
unit"
"Parking Brake"
"Eject Error"
"Loading Error"
"Restricted Device"
"USB Device Error"
"No BT Dongle"*
"Connection Error"
"Please Wait..."
"No Voice Device"
"No Data"
"Initialize Error"
"Dial Error"
"Hung Up Error"
"Pick Up Error"
"Pairing Error"
Appears only for KW-ADV794/KW-AVX748/KW-AVX740 .
*
• Start the playback on the external component connected to VIDEO IN jack.
• Check the cords and connections.
• Signal input is too weak.
A speaker cord has shorted or it has come in to contact with the car chassis. Wire or
insulate the speaker cord as appropriate, then reset the unit (☞ page 3). See also the
Installation/Connection Manual.
No playback picture is shown when the parking brake is not engaged.
Eject the disc forcibly. (☞ page 3)
Check whether the connected iPod/iPhone is compatible with this unit. (☞ page 26)
• The USB power voltage is abnormal.
• Turn off and turn on the unit.
• Connect another USB device.
Bluetooth adapter (KS-UBT1) is removed.
The device is registered but the connection has failed. Connect the registered device.
(Only for KW-ADV794/KW-AVX748/KW-AVX740: ☞ page 50)
The unit is preparing to use the Bluetooth function. If the message does not disappear,
turn off and turn on the unit, then connect the device again (or reset the unit).
The connected mobile phone does not have the voice recognition system.
No phone book data is contained in the connected Bluetooth phone.
The unit has failed to initialize the Bluetooth module. Try the operation again.
Dialing has failed. Try the operation again.
The call has not ended yet. Park your car, and use the connected mobile phone to end
the call.
The unit has failed to receive a call.
Pairing between the unit and Bluetooth device has failed. Register the device again.
(Only for KW-ADV794/KW-AVX748/KW-AVX740: ☞ page 49)
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Remedy/Cause