Troubleshooting/Error Messages - JVC KW-NT500HDT Manuel D'instructions

Troubleshooting/error messages

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).
Symptoms
No sound comes out of the speakers.
The screen is dark.
The screen is not clear and legible.
The power does not turn on.
The unit does not work at all.
The touch panel does not respond properly.
Navigation guidance or AV source is hard to
listen to.
"System startup failed."
"WIRING ERROR Please check wiring then
restart unit."
Remedies/Causes
• Adjust the volume to the optimum level.
• Check the cords and connections.
• The temperature of the monitor is low. According to
the characteristics of liquid crystal display, the screen
may be darker than usual if the monitor temperature is
low when it is turned on. Turn on the power and wait
for some time until the temperature comes up. The
brightness returns to normal.
• Brightness is set to dark. Adjust the display brightness.
(☞ page 83)
Sunshine from the windshield may cause this symptom.
• Adjust the picture. (☞ page 82)
• The brightness and contrast change when viewed from
different angles.
• Adjust the <Off-axis Viewing>. (☞ page 83)
The fuse has blown out. Check the cords are not short-
circuiting, then replace the fuse with a new one of the
same capacity.
Turn off, then turn on the unit.
• Keep your hands and the touch panel clean and dry.
• Eliminate static electricity and do not place magnetic
items near the unit.
• Leave the unit until the temperature becomes stable in
the car.
• A rubber mat on the floor may cause this symptom. In
this case, do not use the rubber mat.
Surround noise interferes. Increase the <Adaptive
Volume> level. (☞ page 83)
The System cannot start up. Turn off, then turn on the unit.
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 restart the unit. See also the
Installation/Connection Manual.
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