Troubleshooting, General, Navigation | JVC LVT1774-001A guide

Troubleshooting

What appears to be trouble is not always serious. Check the following points before calling a service center.

Symptoms	Causes/Remedies
• Parking Brake appears on the	Some operations are prohibited without the
monitor.	parking brake engaged. Park the car in a safe place
	before the operations.
• Sound cannot be heard from the	• Adjust the volume to the optimum level.
speakers.	• Check the cords and connections.
• The monitor is not clear and legible for	Sunshine from the windshield may cause this
watching the playback picture or the	symptom. Adjust Bright and Contrast of
map.	Screen Control. (☞ [96]).
• Low Temperature/HDD Warming	The internal temperature is too low. Leave the
Up appears and some functions do not	power on, and wait until the internal temperature
work properly.	rises and the indication goes off.

• Push Reset appears on the display,	Something is blocking the control panel
and the control panel movement is	movement. Remove the obstacle, then reset the
freezed.	unit (☞ [4]).
	• If this does not work, check if the installation
	has been correctly done.
• The unit does not work at all.	Reset the unit (☞ [4]).
• Cannot operate some functions of an	On the map screen, you can operate only some
AV source on the map screen.	limited functions of the current source. Press SRC
	to display the AV screen and operate the source.
• Cannot operate AV sources with the	On the map screen, 4¢5∞ keys of the
remote controller on the map screen.	remote controller always works for scrolling the
	map.
• Route calculation seems to have	Route calculation may take long depending on the
stopped.	route. Wait for a while.
• Navigation voice cannot be heard from	Guidance voice level is set to the minimum level.
the speakers.	Adjust it to the optimum level. (☞ [43])
• Voice guidance are not heard while	Interruption is set to Off. Set it to On to allow
viewing an AV screen.	the voice guidance interrupt the AV source. (☞
	[44])
• The voice guidance does not come out	Change the Output Channel setting. (☞ [43])
from the speaker on the driver’s side.

•Cannot scroll the map to northeast, etc. To scroll to northeast, you need to press 5 and

¢at the same time.

Maintenance / Troubleshooting 109