SONIQ QMD71B - Manual (Page 18)

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Cleaning the Disc
A defective or soiled disc inserted into the unit can cause sound to drop out during playback.
Handle the disc by holding its inner and outer edges.
• Do NOT touch the surface of the unlabeled side of the disc.
• Do NOT stick paper or tape on the surface.
• Do NOT expose the disc to direct sunlight or excessive heat.
• Clean the disc before playback. Wipe the disc from the centre outward with a cleaning cloth.
• NEVER use solvents such as benzine or alcohol to clean the disc.
• Do NOT use irregular shaped discs (example : heart shaped, octagonal, etc.). They may cause malfunctions.
Cleaning the Unit
• Be sure to turn the unit off and disconnect the AC adaptor before maintaining the unit.
• Wipe the unit with a dry soft cloth. If the surfaces are extremely dirty, wipe clean with a cloth that has been
dipped in a weak soap-and-water solution and wrung out thoroughly. Wipe with a dry cloth.
• Never use alcohol, benzine, thinner, cleaning fluid or other chemicals. Do NOT use compressed air to remove dust.
Important Note
• Before transporting the unit, remove the disc from the disc compartment.
SYmPTOm CAUSE (AND REmEDY)
• Ensure the AC adaptor is connected.
• Make sure that the unit is turned on.
• Make sure the infrared remote sensor is not blocked.
• Make sure the plastic sheet has been removed from the remote.
• Point the remote directly at the infrared remote sensor on the unit.
• Replace the battery in the remote with a new one.
• Make sure that ON mode is selected.
• Make sure the unit is not paused. Press the
PLAY button.
• Make sure the unit is not in fast-forward or fast-reverse mode. Press the PLAY button.
• Make sure that AUDIO/VIDEO output connections are correct.
• The DTS DVD cannot be decoded to have speaker output.
• The unit has overheated. Shut it off for 30 minutes to allow it to cool down.
• The region number of the disc doesn't match the region number of this unit.
• Turn off and on the unit. Check the "Video Out Only" setting in the Video Setup menu.
(Refer to Video Setup on page 16.)
• The DVD is dirty. Gently clean the disc.
• The disc is scratched.
• Please adjust the LCD's brightness and contrast by the
VIDEO MODE button on the
remote control.
• The plugs and jacks are dirty. Wipe them with a cloth slightly moistened with alcohol.
• Clean the disc.
• There is no disc inside the unit ("No Disc" appears on the screen).
Insert the disc correctly with the graphics facing up.
• Clean the disc.
• A non-PAL disc has been inserted, or the disc region number does not match the region
number of the unit..
• Condensation may have formed inside the unit due to a sudden change in temperature.
Wait about an hour for it to clear and try again.
No power.
The remote control
does not function.
Ver y little or no
sound is coming
from a DVD.
No picture.
The picture is not
clear.
Loud hum or noise
is heard.
The disc does not
play.
Specifications and external appearance are subject to change without notice.
maintenance
Troubleshooting Guide