Kenwood KVT-725DVD-B - Manual (Page 44)

English 87
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.
General
The power does not turn on.
• The fuse has blown.
The desired source is NOT selected although you pressed the SRC button.
• An optional unit required to listen to each source is
not connected yet.
• The RESET button is not pressed yet although the
optional unit has been connected to the system.
• The "O-N" switch of the optional unit is at the "O"
position.
• A disc changer not supported by the system is used.
Nothing happens when the buttons are pressed.
• The computer chip in the unit is not functioning
normally.
No television/video image appears.
• The unit is not connected to the parking brake
detection switch.
• The parking brake is not engaged.
The screen is dark.
• The unit is in a location where temperature is low.
The screen does not darken when the vehicle’s lights are turned on.
• The unit is set to auto dimmer.
• The illumination wire has not been connected. (If
manual dimmer is set)
AM/FM radio reception is poor and/or there is noise.
• The TV antenna and vehicle‘s radio antenna are too
close.
The remote controller does not operate.
• The remote control mode selector is not set
correctly.
• After checking for short circuits in the wires, replace the
fuse with one having the same rating.
• A non-connected source is not selected.
• Press the reset button (see page 4).
• Set the "O-N" switch to the "N" position.
• Use a disc changer supported by the system (see page 4).
• Press the reset button on the unit (see page 4).
• Make proper connections according to
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.
• Make proper connections according to
manual>.
• Separate the two antennas as far as possible.
• Turn off the main unit.
• Switch the remote control mode selector according to the
source you select (see page 12).
86 English
English
Glossary
DVD: Digital Versatile Disc
A type of disc which contains recording of
audio/video packaged media with high video and
audio quality, such as a movie, featuring large
recording capacity and digital signal processing
capability.
VCD: VIDEO CD
A type of CD which contains the recording of
moving images. It compresses image information
by about 1/120 and audio information by about 1/6
and accommodates up to 74 minutes of recording
in a disc with the same diameter as ordinary
music CD of 12 cm.
Some VCDs do not have the P.B.C. compatibility
and are capable of playback only, while some are
P.B.C.-compatible and are capable of various
special playback control operations. This player
can play both of these VCDs.
MPEG: Moving Picture Expert Group (DVD, VCD)
This is an international standard for digital video
and audio compression and decompression in
media.
Dolby Digital
This is a digital audio compression technology
developed by Dolby Laboratories. It is compatible
with 5.1-channel surround audio as well as normal
stereo (2-channel) audio and can accommodate a
large amount of audio data efficiently in a disc.
DTS
Name of a digital surround system developed by
Digital Theater Systems, Inc.
Top menu/menu (DVD)
Some DVDs display more than one title in a
screen. This screen is referred to as the top
menu.
The menu is the item display (menu screen) for
use in setting operations. The menu can be
recalled any time during playback to perform
settings according to the current software,
including the audio switching between Dolby
Digital and PCM, switching of language used in
the subtitles and spoken voice.
Title number (DVD)
The title is the largest unit of video and audio
recorded in a DVD. It usually corresponds to a
single movie of video software or an album
(sometimes a piece of music) of music software.
The numbers assigned to individual titles are
referred to as the title numbers.
Chapter number (DVD)
The chapter is a section of video and audio
recorded in a DVD. A title is composed of several
chapters. The numbers assigned to individual
chapters are referred to as the chapter numbers.
Subtitles (DVD)
Some DVD discs contains the recording of more
than one subtitle language. This player allow you
to select one of the recorded subtitle languages
during playback.
Track number (CD, VCD)
A track is also a section of video and audio
recorded in a disc. The numbers assigned to
individual tracks are referred to as the track
numbers.
With most of music CDs, a track is assigned to a
piece of music. However, with a VCD, the
sections of the contents do not always
correspond to the assigned tracks.
As (special) playback functions such as skipping
and programming of ordinary CDs are based on
track number data, such playback functions are
sometimes impossible with some VCDs.
P.B.C.: Play-Back Control (VCD)
When a VIDEO CD carries "Play Back Control
capable" or similar message on the disc or jacket,
desired scenes and information can be played
back in an interactive manner using a hierarchical
structure while viewing the menu screens
displayed on the TV screen.