Yamaha YFG-812, Руководство пользователя

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The tone is not clear, or the in-
strument plays out of tune.
• If pads are deformed and air is leak-
ing from the instrument, take the
instrument to your dealer for repair.
➞
Never apply excessive pressure to
the keys. Also, when placing the
instrument in the case, make sure
that nothing is placed on top of the
instrument.
• If the body cracks, take the instru-
ment to your dealer for repair.
➞
Sudden changes in temperature or
humidity can cause cracking. Do not
directly expose the instrument to
hot or cold air.
The keys are stiff. The keys do
not move.
• If a spring has become dislodged,
returning it to its proper position may
correct the problem.
➞
When hooking the spring in posi-
tion, be careful not to bend the
spring. Springs may become dis-
lodged when performing mainte-
nance on the instrument or when
wiping the instrument with a cloth.
Please use caution.
• If keys are bent, take the instrument
to your dealer for repair.
➞
Do not apply excessive force to
the instrument such as dropping
the instrument, closing the case
when an object is placed on top
of the instrument, etc. Also, when
you are finished playing, place the
instrument in the case. At this time,
make sure that there is nothing in
the case that will apply pressure
on the keys. When assembling the
instrument, be careful not to apply
unnecessary pressure to the keys.
Hold on to the instrument in the
intervals between performance and
during breaks between practice.
Troubleshooting
The joint is too tight or loose.
• If the joint becomes tight or loose,
please contact the store where you
purchased the product or a Yamaha
customer service center.
➞
The joints may shrink/expand
depending on humidity and tem-
perature, making them tight in the
summer and loose in the winter.
➞
After playing, be sure to store the
instrument in the case.
The keys are noisy.
• Apply key oil if the keys lack oil and
are dry, and tighten screws that have
become loose.
➞
Apply key oil once a month (1-2
drops per location) to prevent abra -
sion. Also, since woodwind instru -
ments have many small screws,
check for loose screws and tighten
if necessary.
• The cork or felt on the keys has fallen
off or torn. The instrument may have
received a shock causing the keys
to come in contact with the body
or other keys. In this case, take the
instrument to your dealer for repair.
➞
Take proper care of the instru-
ment to prevent the corks or felts
from falling off. After playing the
instrument keep the instrument
in its case. Also, hold on to the
instrument in the intervals between
performance and during breaks be-
tween practice to prevent excessive
pressure being placed on the instru-
ment or keys.