Yamaha Personal Electronic Piano YPP-15 - Manual (Page 16)

MAINTENANCE
• Every once in a while, wipe the cabinet clean with a soft cloth slightly moistened with a diluted soap solution,
then wipe it with a dry cloth. Don’t use chemically treated cloths or other chemicals like oil, solvents or
insecticides.
• Do not expose the unit to direct sunlight, moisture or extremes in temperature. This includes not placing the
unit on top of amplifiers, receivers or other heat sources, especially those with temperatures higher than 60°C
(140°F).
• Place the unit on a firm, level, vibration-free surface. Do not put anything on top of it.
• Keep the unit away from sources of strong magnetism, and from highly dusty or humid areas.
• Using an unauthorized AC power adaptor may damage the unit.
• Do not remove the unit’s cover, as this can cause electric shock. All repairs should be referred to YAMAHA
personnel.
YAMAHA IS NOT RESPONSIBLE FOR DAMAGE CAUSED BY IMPROPER USE.
TROUBLESHOOTING
Many “problems” can be solved quite easily. Before calling your YAMAHA dealer, please refer to the following
table.
PROBLEM POSSIBLE SOLUTION
• Power does not come on. • Load batteries correctly.
• Replace batteries if dead.
• If using an AC adaptor, make sure it is firmly
connected at both ends.
• Volume is too low, sounds cannot be sus­ • Replace batteries.
tained (held).
• No sound. • Remove headphones if plugged in.
• Replace batteries if dead.
• Reset keyboard to “Local Control On” if not in
this mode.
• Distorted sound. • Lower the volume.
• MIDI information is not being transmitted or • Check MIDI channels of transmitting and re­
received. ceiving instruments.
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