43
Troubleshooting Guide

General

?The power does not turn ON.01
✔The fuse has blown.
☞After checking for short circuits in the wires, replace the
fuse with one with the same rating.
✔No ACC position on vehicle ignition.02
☞Connect the same wire to the ignition as the battery
wire.
?Nothing happens when the buttons are pressed.04
✔The computer chip in the unit is not functioning normally.
☞Press the reset button on the unit (page 4)..
?The monitor does not open/close.KVT
✔The unit is not connected to the parking brake detection
switch.
☞Make proper connections according to <Connection>
(See page 40).
✔The parking brake is not engaged.
☞For safety reasons, the monitor does not open while the
vehicle is moving. Engaging the parking brake.
?The screen is dark.KVT
✔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.
?Nothing happens when the buttons are pressed.04
✔The computer chip in the unit is not functioning normally.
☞Press the reset button on the unit (page 4).
?The memory is erased when the ignition is turned OFF.10
✔The battery wire has not been connected to the proper
terminal.
☞Connect the wire correctly, referring to the section on
<Connection>.
✔The ignition and battery wire are incorrectly connected.11
☞Connect the wire correctly, referring to the section on
<Connection>.
?There’s no loudness effect.12
✔You’re using Non-fading preout.
☞Loudness has no effect in Non-fading preout.
?The TEL mute function does not work.15
✔The TEL mute wire is not connected properly.
☞Connect the wire correctly, referring to the section on
<Connection>.
?The TEL mute function turns ON even though the TEL mute
wire is not connected.16
✔The TEL mute wire is touching a metal part of the car.
☞Pull the TEL mute wire away from the metal part of the
car.
?Even if Loudness is turned ON, high-pitched tone isn't
compensated for. 17
✔Tuner source is selected.
☞High-pitched tone isn't compensated for when in Tuner
source.
?No sound can be heard, or the volume is low.
✔The fader or balance settings are set all the way to one
side.21
☞Center the fader and balance settings.
✔The input/output wires or wiring harness are connected
incorrectly.22
☞Reconnect the input/output wires or the wiring harness
correctly. See the section on <Connection>.
✔The values of Volume offset are low.24
☞Increase the values of Volume offset. (page 15)
?The sound quality is poor or distorted.25
✔One of the speaker wires is being pinched by a screw in the
car.
☞Check the speaker wiring. 6
✔The speakers are not wired correctly.27
☞Reconnect the speaker wires so that each output
terminal is connected to a different speaker.
?Non-fading output, Non-fading Low Pass Filter and Non-
fading setting can’t be done.28
✔The <Non-fading output> (page18) is OFF.29
☞Turn it ON.
The <Dual zone system> (page 15) is ON.30
☞Turn it OFF.
?There’s no Front High Pass Filter and Rear High Pass Filter
effect.31
✔The Non-fading preout is being used.
☞There’s no effect in Non-fading preout.
?The Security Code item isn’t displayed in the Menu
System.32
✔The Security Code function is already activated.
☞When the Security Code function is activated it isn’t
displayed in the menu items.
?The Touch Sensor Tone doesn’t sound.34
✔The preout jack is being used.
☞The Touch Sensor Tone can’t be output from the preout
jack.
?Even though Synchronize Clock is ON, the clock can’t be
adjusted.35
✔The received RDS station isn’t sending time data.
☞Receive another RDS station.

Tuner source

?Radio reception is poor.39
✔The car antenna is not extended.
☞Pull the antenna out all the way.
✔The antenna control wire is not connected.40
☞Connect the wire correctly, referring to the section on
<Connection>.
?The desired frequency can’t be entered with the Direct
Access Tuning.41
✔A station that can’t be received is being entered.
☞Enter a station that can be received.
✔You’re trying to enter a frequency with a 0.01 MHz unit.42
☞What can be designated in the FM band is to 0.1 MHz.
?It isn't the set Traffic information sound volume. 43
✔The set sound volume is less than the tuner sound volume.
☞If the tuner sound volume is louder than the set sound
volume,the tuner sound volume is used.

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.

KVT-M700(K)_Eng_ver01.1 01.12.20 7:20 PM Page 43