Koss KS5845-2 - Manuel (Page 22)

TROUBLE SHOOTING
22
If it appears that your DVD unit is faulty,
first consult this checklist. It may be that
something simple has been overlooked.
Under no circumstances should you
try to repair the player yourself, as
this will invalidate the warranty. Only
qualified service personnel can
remove the cover or service this
player.
NO POWER
• Check if the POWER button on the front
of the player is set to ON.
• Check if AC or DC power plug of the
mains unit is properly connected.
• Check if there is power at the AC or DC
outlet.
• Check if the voltage of the battery is
too low.
NO PICTURE
• Select the correct TV or AV input.
• Check the video connection.
DISTORTED PICTURE
• Check the disc for fingerprints and clean
with soft cloth, wiping from centre to
edge.
• Sometimes a small amount of picture
distortion may appear. This is not a
malfunction.
COMPLETELY DISTORTED PICTURE
• The disc format is not according to the
TV-set used (PAL/NTSC).
NO COLOR IN PICTURE
• The disc format is not according to the
TV-set used (PAL/NTSC).
DISC DOES NOT PLAY
• Ensure the disc label is upwards.
• Clean the disc.
• Check if the disc is defective by
trying another disc.
NO SOUND
• Check audio connections.
• If using a HIFI amplifier, try another
sound source.
NO RETURN TO START-UP SCREEN
WHEN DISC IS REMOVED
• Slide the POWER switch to OFF side
to turn off the unit, then slide the switch
to ON side to turn on the unit.
THE PLAYER DOES NOT RESPOND TO
THE REMOTE CONTROL
• Aim the remote control directly at the
sensor on the front of the player.
• Avoid all obstacles which may interfere
with the signal path.
• Inspect or replace the remote control
batteries.
DISTORTED OR B/W PICTURE
• The disc format is not according to the
TV-set used (PAL/NTSC).
NO AUDIO AT DIGITAL OUTPUT
• Check the digital connections
• Check the Audio menu to make sure
that the digital output is correctly set.
• Check if the audio format of the selected
audio language matches your receiver’s
capabilities.
BUTTONS DO NOT WORK
• Turn the player off and on with the
power on/off button on the side of the
player.