Problems - Koss KS4192 Instruction Manual

Dvd/vcd/cd receiver home theatre
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PROBLEMS

If it appears that your DVD-Video player 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.
When the unit is switched on the first time, S-Video will be the defaulted video output. Press the V-SELECT
button to select the correct output modes. Your current output mode will show on the VFD.
NO POWER
• Check if the on/off button on the front of the player
is set to on.
• Check if power plug of the mains cord is properly
connected.
• Check if there is power at the AC outlet by
plugging in another appliance.
NO PICTURE
• Check if the TV is switched on.
• Select the correct AV input on the TV.
• Check the video connection.
• Check if channel selector is set to AV on the TV.
(See your TV manual for instructions).
• When Progressive Scan is on, no video output for
composite video output.
• Press the V-SELECT button to select the correct
video output mode. Otherwise no picture or
distorted picture will be found.
DISTORTED PICTURE
• Check the disc for fingerprints and clean with soft
cloth, wiping from center to edge.
• Sometimes a small amount of picture distortion
may appear. This is not a malfunction.
• The disc format does not match the TV-set used
(PAL/NTSC).
• Ensure that ONL Y one video output is connected.
NO COLOR IN PICTURE
• The disc format is not according to the TV-set
used (PAL/NTSC).
• Ensure DVD player is not connected through VCR.
PICTURE SWING
• Relocate the unit further away from possible
interference or emission source (e.g. Radio, Power
Amplifier, radiator etc.).
NO RETURN TO START-UP SCREEN WHEN
DISC IS REMOVED
• Check to see if the program requires another disc
to be loaded.
• Reset by unplugging the player from the power,
then connect the power again.
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 batteries.
NO SOUND
• Check audio connections.
• If using a Hi-Fi amplifier, try another sound source.
• Check that DTS digital out is selected in the Audio
Menu if a DTS disc is played.
• Ensure there is a DTS decoder connected when
selecting DTS.
• Clean the disc.
• Check if the disc is defective by trying another disc
NO AUDIO AT DIGITAL OUTPUT
• Check the digital connections
• Check the Digital Out menu to make sure that the
digital output is correctly set.
• Check if the audio format of the selected audio
language matches your unit capabilities.
DISC CANNOT BE PLAYED
• Ensure disc is placed properly into the disc tray.
YOU HAVE FORGOTTEN THE PASSWORD
• Under no disc condition, press Number Key 7,
Number Key 6, Number Key 4, Number Key 1 and
Number 8 on Remote Control in order.
FUNCTION DISTURBED
• The normal function of the product may be
disturbed by external interference. Just reset the
product (disconnecting and reconnecting the power
cord might be required to resume normal
operation).
E 39

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