Polycom DVD 729 - Manual (Page 27)

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Troubleshooting
WARNING
Under no circumstances should you try to repair the system yourself, as this will invalidate the
warranty. Do not open the system as there is a risk of electric shock.
If a fault occurs, first check the points listed below before taking the system for repair. If you
are unable to remedy a problem by following these hints, consult your dealer or service center.
Problem Solution
No power – Check if the AC power cord is properly connected.
No picture – Check if the TV is switched on.
– Check the video connection.
Distorted picture – The disc is badly scratched or dirty.
– Sometimes a small amount of picture distortion
may appear .This is not a malfunction.
Completely distorted picture or – Make sure the NTSC/PAL setting at the DVD
black/white picture with DVD Player matches the video signal of your television.
or Video CD (See NTSC/PAL CONVERSION)
– If the picture becomes distorted after switching
between PAL and NTSC, please set the SMART
PICTURE to STANDARD.
No sound or distorted sound – Adjust the volume.
– Check that the speakers are connected correctly.
Cleaning the Cabinet
¶ Use a soft cloth slightly moistened with a mild
detergent solution. Do not use a solution
containing alcohol, spirits, ammonia or abrasives.
Cleaning Discs
¶ When a disc becomes dirty, clean it with a
cleaning cloth. Wipe the disc from the center out.
Do not wipe in a circular motion.
¶ Do not use solvents such as benzine, thinner,
commercially available cleaners, or antistatic
spray intended for analog records.
Maintenance
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