JVC KD-R491 Schematic Diagrams page 49

5.3 Error Message
No. Error Message
1 "MISWIRING CHECK WIR-
ING THEN PWR ON"
2 "PROTECTING SEND SER-
VICE"
3 "NO MEDIA"
4 "NO FILE"
5 "UPDATE ERR #"
6 "HF ERROR 07"
7 "HF ERROR 68"
8 "NO FILE"
9 "CANNOT PLAY "
10 "NO DEVICE"
11 "NO DEVICE" or "READ-
ING" keeps flashing.
12 "ANDROID ERROR"/ "NA
DEVICE"
13 "CANNOT PLAY "
14 "USB HUB IS NOT SUP-
PROTED"
15 "UNSUPPORTED DEVICE" A USB device that is not compatible with
Information
Wrong speaker connection such as speak
wire short to ground.
Capacitor Leakage
No USB is connected
No valid firmware update file is found in
connected USB
Firmware update file with invalid header
data is found in connected USB or remov-
ing USB during updating process
EEPROM Access error
Communication to BT Module error
No file in list menu.
invalid media
No audio device connected via BT or USB connect supported device
Not supported devices connected.
1. Apps Crash
2. Wire connection problem.
1. JVC Music Play is forced stop.
2. No music file in auto mode.
This unit cannot support a USB device
connected via a USB hub.
file system supports is connected.
(No.MA665<Rev.001>)30/33
Methods to recover / Clear the mes-
sage
Method one:
Turn the power off, then check to be sure
theterminals of the speaker wires are
insulated properly. Turn the power on
again.
Method two:
Perform hardware reset.
Perform the Service Information Clear
Mode
Connect the USB with valid firmware
update file and the set itself will start the
firmware update.
Connect the USB with valid firmware
update file and the set itself will start the
firmware update.
Check whether the firmware update file
with correct header is in the connected
USB and perform hardware reset.
Then, start the firmware update and make
sure not to disconnect the USB while
updating.
Method one:
Perform hardware reset.
Method two:
Perform Firmware update
Method one:
Perform hardware reset.
Method two:
Perform Firmware update
insert the playable audio file in list menu. iPod
Connect a device that contains playable
audio files.
• Switch off the developer options on the
Android device.
• Reconnect the Android device.
• If this does not solve the problem, the
connected Android device does not
support [BROWSE MODE].
• Reconnect the Android device.
• Restart the Android device.
• Make sure Android device contains
playable audio files.
• Reconnect the Android device.
• Restart the Android device.
Remove USB hub connection.
• Check whether the connected device is
compatible with this unit and ensure the
file systems are in supported formats.
• Reattach the device.
Category
Audio
Audio
Firmware
update
Firmware
update
Firmware
update
BT
BT
iPod
iPod
AOA
AOA
AOA
USB
USB