PRECAUTIONS
The P-100 is a fine musical instrument composed of sensitive mechanisms and delicate digital circuitry. To ensure a
long lifetime of reliable service, observe these precautions when installing, moving, or handling the P-100.
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Location
Do not use the P-100 in locations where it will be
exposed to direct sunlight, extremes of tempera-
ture or humidity, or excessive dust or vibration.
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Handling
Avoid rough handling. Do not drop the P-100 or
subject it to shock, as these can damage the
piano’s internal circuitry. Also, do not apply
excessive force to controls or terminals. When
moving the P-100. first unplug the AC power cord
and all other cables to prevent damage to cords
and jacks. When removing plugs from terminals,
always grip them directly rather than pulling on
the cords.
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Cleaning
Use a slightly moist cloth and a neutral cleanser to
clean the P-100. Do not use abrasive cleaners,
waxes, solvents, or chemically treated cloths to
clean the P-100, as these may damage the cabi-
net’s finish or dull the keys.
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AC Power
The power requirement of your P-100 has been set
to match the mains power supply voltage in your
area. Make sure that your local AC mains voltage
matches the voltage specified on the name plate
on the rear panel of your P-100. If you have any
doubts about voltage compatibility. please consult
your local Yamaha dealer. If you plan to use your
P-100 in an area with a different voltage. be sure
to use an appropriate converter.
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Electromagnetic interference
Avoid using your P-100 near televisions. radios. or
other equipment generating electromagnetic fields.
Proximity to such equipment can cause the P-100
to malfunction. and may generate interference
noise in the other appliance as well.
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Extended disuse
Electrical storms can cause power surges which
can damage the P-100’s circuitry even if the
power switch is turned off. Therefore, it is best to
disconnect the P-100’s power cord from the AC
outlet when you will not be using it for an
extended period of time.
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Service and Modification
The P-100 contains no user serviceable parts.
Never open the piano’s cabinet or tamper with it in
any way, as doing so can result in electrical shock
or damage to the P-100. Refer all servicing to
qualified YAMAHA service personnel.
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Backup battery
The P-100’s internal settings are preserved by a
lithium backup battery which has a life of approxi-
mately 5 years. (The battery’s life may be some-
what shorter, depending on the time elapsed
between your P- 100’s date of manufacture and the
date you purchased it.) When the battery charge
runs low, the “Er1” error message will appear in
the LED display. If this display appears. save any
settings you may want to keep using the bulk
dump procedure, if possible, then contact your
Yamaha dealer or a Yamaha service center to have
the battery replaced.
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