Maintenance
Cleaning the H663 / H663-RH
Refer to the following to clean the H663 / H663-RH case.
1. Wipe off dust with a clean dampened cloth.
2. Moisten the cloth with warm water and wring the cloth out well, then wipe the case.
Warning:
1. Be sure to turn off and unplug the H663 / H663-RH at least an hour before clean-ing.
2. If a little water gets into the H663 / H663-RH interior while cleaning, leave un-plugged in a well-
ventilated room for several hours before using.
3. To prevent discoloration or fading of the case, do not use any chemical or abrasive alcohol-based
cleaners.
Troubleshooting
►Common Problems and Solutions
These guidelines provide tips to deal with problems you may encounter while us-ing the H663
/ H663-RH. If the problem remains unsolved, contact your dealer for assistance. Check the
following before proceeding to the problem-specific solutions.
• Use some other electrical device to confirm that the electrical outlet is working.
• Ensure the H663 / H663-RH is turned on.
• Ensure all connections are securely attached.
• Ensure the attached device is turned on.
►Tips for Troubleshooting
In each problem-specific section, try the steps in the order suggested. This may help you to solve
the problem more quickly.
Try to pin point the problem and thus avoid replacing non-defective parts. For example, if you
replace batteries and the problem remains, put the original batteries back and go to the next step.
Keep a record of the steps you take when troubleshooting. The information may be useful when
calling for technical support or for passing on to service person-nel.
►Remote Control or Keyboard Problems
Problem: The H663 / H663-RH does not respond to the remote control or the keyboard.
1. Direct the remote control or keyboard towards the remote sensor on the H663 / H663-RH.
2. Ensure the path between the remote and sensor is not obstructed.
3. Check the battery polarity.
4. Replace the batteries.
5. Have the remote control or keyboard serviced.