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Troubleshooting Guide

What might appear to be a malfunction in your unit may just be the result of slight misoperation or

miswiring. Before calling service, first check the following table for possible problems.

SOLUTIONPOSSIBLE CAUSEPROBLEM

Nothing happens when the
buttons are pressed.
The computer chip in the unit is not
functioning normally.
Press the reset button on the unit (See page 3).
The power does not turn on. The fuse has blown. After checking for short circuits in the cables,
replace the fuse with one having the same
rating.
No ACC position on vehicle ignition. Connect the same wire to the ignition as the
battery wire.
No television/video picture
appears.
(Television picture : when the
KTC-V800N or KTC-V800P is
connected)
The unit is not connected to the parking brake
detection switch.
Make proper connections according to
”Connecting the power“ (See page 13).
The parking brake is not engaged. For safety reasons no television/video picture
are displayed while the vehicle is moving.
Engaging the parking brake will cause picture
to be displayed.
The screen is dark. The unit is in a location where temperature is
low.
If the temperature of the monitor unit drops,
the screen may appear darker when power is
first turned on due to the characteristics of a
liquid crystal panel. Wait a while after turning
power on for the temperature to rise. Normal
brightness will return.
AM/FM radio reception is poor
and/or there is noise.
(When the KTC-V800N or KTC-
V800P is connected)
The TV antenna and vehicle‘s radio antenna
are too close.
• Separate the two antennas as far as possible.
• Turn off the LZ-800W.

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