Yamaha Trombones Kullanıcı El Kitabı - Sayfa 15
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Troubleshooting
Tone is not clear and pitch is poor.
• A large amount of dirt has accumu-
lated inside the pipe.
➞ Wash out the pipes.
• There is a large dent in the pipe and
air is leaking from a pipe seam.
• The mouthpiece is loose and air is
leaking from around the mouthpiece.
• The holes in the rotary valve and valve
casing are not aligned.
➞ Contact the dealer from whom you
purchased the instrument.
The slide does not move smoothly.
• Dirt has accumulated between the
inner and outer slides.
➞ Wash the inside of the slide.
• The slide is bent.
• There is a dent in the slide.
➞ Never use the instrument with a
damaged slide. Contact the dealer from
whom you purchased the instrument.
The tuning slide is stuck can not
be removed. The slide is sluggish.
• Dirt or dust between the tuning slide
and pipe has scratched the tuning
slide.
➞ Thoroughly remove dirt and apply
some slide grease that matches the
type of slide.
• Dropping or hitting the slide has
caused a dent, or the slide was bent
while cleaning.
➞ Contact the dealer from whom you
purchased the instrument.
The screw is too tight and cannot
be removed.
• The screw is corroded.
• Hitting the instrument has damaged
the screw.
➞ Contact the dealer from whom you
purchased the instrument.
The rotary valve is sluggish.
• Dirt has accumulated between the
rotary valve and valve casing.
• The rotary valve lever linkage is bent.
➞ Contact the dealer from whom you
purchased the instrument.
• The string is loose.
➞ Re-attach the string.
The mouthpiece cannot be removed.
• The instrument was dropped or hit
with the mouthpiece attached. Or, the
mouthpiece was inserted with too
much force.
• The instrument has been left for a
long period of time with the mouth-
piece inserted in the instrument.
➞ Contact the dealer from whom you
purchased the instrument.
The instrument makes an abnor-
mal sound when played.
• Solder on the instrument has come
loose, or a foreign object is in the
pipe.
➞ Contact the dealer from whom you
purchased the instrument.
The rotary valve lever makes a
metallic sound when moved.
• The lever comes into contact with the
pipes.
➞ Re-attach the string and adjust the
lever's position.
• Screws are loose.
➞ Firmly tighten the screws.
• The rotary valve and valve casing have
come loose.
➞ Contact the dealer from whom you
purchased the instrument.
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