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PSR-F50 Owner’s Manual
PRECAUTIONS
PLEASE READ CAREFULLY BEFORE PROCEEDING
Please keep this manual in a safe and handy place for future reference.
WARNING
Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical
shock, short-circuiting, damages, fire or other hazards. These precautions include, but are not limited to, the
following:
• Do not place the power cord near heat sources such as heaters or radiators. Also,
do not excessively bend or otherwise damage the cord, or place heavy objects on
it.
• Only use the voltage specified as correct for the instrument. The required voltage
is printed on the name plate of the instrument.
• Use the specified adaptor (page 9) only. Using the wrong adaptor can result in
damage to the instrument or overheating.
• Check the electric plug periodically and remove any dirt or dust which may have
accumulated on it.
• This instrument contains no user-serviceable parts. Do not open the instrument
or attempt to disassemble or modify the internal components in any way. If it
should appear to be malfunctioning, discontinue use immediately and have it
inspected by qualified Yamaha service personnel.
• Do not expose the instrument to rain, use it near water or in damp or wet
conditions, place on it any containers (such as vases, bottles or glasses)
containing liquids which might spill into any openings. If any liquid such as
water seeps into the instrument, turn off the power immediately and unplug the
power cord from the AC outlet. Then have the instrument inspected by qualified
Yamaha service personnel.
• Never insert or remove an electric plug with wet hands.
• Do not put burning items, such as candles, on the unit. A burning item may fall
over and cause a fire.
• Follow the precautions below. Failure to do so might result in explosion, fire,
overheating or battery fluid leakage.
- Do not tamper with or disassemble batteries.
- Do not dispose of batteries in fire.
- Do not attempt to recharge batteries that are not designed to be charged.
- Keep the batteries separate from metallic objects such as necklaces, hairpins,
coins, and keys.
- Use the specified battery type (page 9) only.
- Use new batteries, all of which are the same type, same model, and made by
the same manufacturer.
- Always make sure all batteries are inserted in conformity with the +/- polarity
markings.
- When the batteries run out, or if the instrument is not to be used for a long
time, remove the batteries from the instrument.
- When using Ni-MH batteries, follow the instructions that came with the
batteries. Use only the specified charger device when charging.
• Keep batteries away from small children who might accidentally swallow them.
• If the batteries do leak, avoid contact with the leaked fluid. If the battery fluid
should come in contact with your eyes, mouth, or skin, wash immediately with
water and consult a doctor. Battery fluid is corrosive and may possibly cause loss
of sight or chemical burns.
• When one of the following problems occur, immediately turn off the power switch
and disconnect the electric plug from the outlet. (If you are using batteries,
remove all batteries from the instrument.) Then have the device inspected by
Yamaha service personnel.
- The power cord or plug becomes frayed or damaged.
- It emits unusual smells or smoke.
- Some object has been dropped into the instrument.
- There is a sudden loss of sound during use of the instrument.
CAUTION
Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or damage
to the instrument or other property. These precautions include, but are not limited to, the following:
• Do not connect the instrument to an electrical outlet using a multiple-connector.
Doing so can result in lower sound quality, or possibly cause overheating in the
outlet.
• When removing the electric plug from the instrument or an outlet, always hold
the plug itself and not the cord. Pulling by the cord can damage it.
• Remove the electric plug from the outlet when the instrument is not to be used for
extended periods of time, or during electrical storms.
• Do not place the instrument in an unstable position where it might accidentally
fall over.
• Before moving the instrument, remove all connected cables, to prevent damage
to the cables or injury to anyone who might trip over them.
Power supply/AC power adaptor
Do not open
Water warning
Fire warning
Battery
If you notice any abnormality
Power supply/AC power adaptor
Location
DMI-5
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