Troubleshooting Guide - Kenwood VZ-7000N Instruction Manual

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.
PROBLEM
The power does not turn on.
Nothing happens when the
buttons are pressed.
The monitor does not
open/close.
No television/video image
appears.
The screen is dark.
The screen does not darken
when the vehicle's lights are
turned on
AM/FM radio reception is poor
and/or there is noise.
The following messages are displayed when certain problems are occurring in your system.
Take the recommended actions.
No disc magazine has been loaded in the changer. The disc magazine is not completely loaded.
EJECT
] Load the disc magazine properly.
No CD in the unit.
] Insert the CD.
No disc has been loaded in the disc magazine.
NO DISC
] Load a disc into the disc magazine.
No disc has been loaded in the disc magazine.
ERROR-04
] Load a disc into the disc magazine.
The CD is quite dirty. The CD is upside-down. The CD is scratched a lot.
] Clean the CD and load it correctly.
Something is wrong with the disc magazine. Or the unit is malfunctioning for some reason.
ERROR-99
] Check the disc magazine. And then press the reset button on the unit. If the "ERROR- 99" code does not
disappear, consult your nearest service center.
The protective circuit in the unit activates when the temperature inside the automatic disc changer exceeds
HOLD
60°C (140°F), stopping all operation.
] Cool down the unit by opening the windows or turning on the air conditioner. As the temperature falls
below 60°C (140°F), the disc will start playing again.
This is displayed when a center unit is in the Adjust mode. During "Headunit Adjusting" is displayed, buttons
Headunit
other than [SRC], [ATT] and [MENU] are disabled.
Adjusting
POSSIBLE CAUSE
The fuse has blown.
No ACC position on vehicle ignition.
The computer chip in the unit is not
functioning normally.
The parking brake is not engaged.
The unit is not connected to the parking brake
detection switch.
The parking brake is not engaged.
The unit is in a location where temperature is
low.
The unit is set to auto dimmer.
The TV antenna and vehicle's radio antenna
are too close.
SOLUTION
After checking for short circuits in the cables,
replace the fuse with one having the same
rating.
Connect the same wire to the ignition as the
battery wire.
Press the reset button on the unit
(See page 4).
For safety reasons, the monitor does not open
while the vehicle is moving. Engaging the
parking brake.
Make proper connections according to
"Connection" (See Installation Manual).
For safety reasons no television/video images
are displayed while the vehicle is moving.
Engaging the parking brake will cause images
to be displayed.
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.
When the unit is set to auto dimmer, it is not
linked to the vehicle's light switch.
• Separate the two antennas as far as
possible.
• Turn off the main unit.
25