5
PRECAUTIONS
IMPORTANT! PLEASE READ BEFORE PROCEEDING.
The W5/W7 is a powerful electronic musical instrument featuring sensitive high technol-
ogy. To ensure many years of trouble-free use, please take the important precautions below
seriously.
backup battery replaced by qualified Yamaha service
personnel. Do not attempt to replace the backup battery
yourself.
HANDLING AND TRANSPORT
● Handle with care. Physical shocks caused by dropping,
bumping the instrument, or placing heavy objects upon it,
can result in serious damage to the W5/W7.
● Never apply excessive force to the controls, connectors or
other parts of the instrument.
● Disconnect all cables before moving the instrument. Always
unplug cables by gripping the plug firmly, and not by
pulling on the cable itself.
CLEANING
● Never use chemical solvents or thinners to clean the W5/
W7, since these will damage the finish or dull the keys.
Wipe the instrument clean with a soft, dry cloth. If neces-
sary, use a soft, clean cloth slightly moistened with a
diluted, mild detergent. Then wipe the instrument thor-
oughly with a dry cloth.
● Avoid placing vinyl objects on top of the instrument, since
vinyl can stick to and discolor the surface.
DATA BACKUP AND STORAGE
● Be sure to save all song sequence and Song voice data to
floppy disk before turning off the power. At power off, these
types of data are not retained in the W5/W7 s internal
memory.
● Since it is possible for data in internal memory to be lost as
a result of improper operation, handling, or other reasons,
always keep floppy disk backups of important voice, song
sequence and multi data, and store them in a cool, dry
place. Since it is also possible for the data in a floppy disk to
be lost as a result of static electricity, magnetic fields, or
other causes, it is always a good idea to make at least two
backup copies of the floppy disks and store them in
different locations, just to be safe.
● To prevent accidental erasure of important data you have
saved to floppy disk, be sure to slide the disk s write-protect
tab to the write protect position (the tab window should
be open). When this is done the data on the disk cannot be
accidentally overwritten.
LOCATION
● In order to avoid causing serious damage to the W5/W7, do
not expose the instrument to direct sunlight, high tempera-
tures, excessive humidity, excessive dust or strong vibration.
● Place the W5/W7 on a solid surface such as a keyboard
stand or a sturdy table or desk.
POWER SUPPLY
● Turn the power switch off when the instrument is not in
use.
● The power supply cord should be unplugged from the AC
outlet if the instrument is not to be used for an extended
period of time. (NOTE: When AC power is reconnected,
song sequencer data, including Song voice data, will have
been erased.)
● Unplug the instrument during electrical storms.
● Avoid plugging the instrument into the same AC outlet as
appliances with high power consumption such as electric
heaters or ovens. Also avoid using multiple-plug adapters
since these can result in reduced sound quality and possibly
even damage to the W5/W7.
UNPLUG ALL INSTRUMENTS WHEN MAKING
CONNECTIONS
● To avoid causing damage to the instrument and other
devices to which it is connected (such as a sound system or
MIDI instruments), turn off power and unplug all related
devices prior to connecting or disconnecting audio and
MIDI cables. When connecting AC power be sure the W5/
W7 is properly grounded.
ELECTRICAL INTERFERENCE
● Avoid using the W5/W7 near televisions, radios or other
devices which generate electromagnetic fields, since this
may cause the W5/W7 to malfunction, and possibly
generate interference noise in the other devices.
BACK-UP BATTERY
● The W5/W7 contains a special long-life battery that retains
the contents of its internal voice and multi memory when
the power is turned off. The back-up battery should last for
several years. When it needs to be replaced, the message
Change internal battery! will appear on the display when
the power is turned on. When this happens, have the