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Troubleshooting - Yamaha YHR-567 Owner's Manual

Owners manual
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Troubleshooting

Tone is not clear and pitch is poor.
• Dirt has accumulated inside the tubing.
➞ Use the procedure described in the
"Valve Slide Maintenance" section and
wash out the insides of the tubing.
• The water key cork is cracked causing
air to leak.
➞ Replace the water key cork with a new
one.
• The mouthpiece is loose and rattles,
and air is leaking from around the
mouthpiece.
• There is a large dent in the tubing,
and air is leaking from the ferrules
where the tubing connects.
• There is a foreign object in the tubing.
• Holes in the rotors are not aligned
with holes in the valve casing
branches.
➞ Contact the dealer from whom you
purchased the instrument.
The rotors are sluggish.
• The string is loose.
➞ Use a screwdriver and tighten the string.
• Dirt has accumulated between the
valve casing and rotor.
• The valve casing is deformed.
• The rotary valve was disassembled,
then reassembled.
➞ Contact the dealer from whom you
purchased the instrument.
The valve slide is stuck and can not
be removed. The slide is sluggish.
• Dirt or dust has accumulated between
the outer and inner slides and the
valve slide is damaged.
➞ Remove dirt from the slides then apply
some slide grease.
• Dropping or hitting the slide has
created a dent, or the slide was bent
while cleaning.
➞ Contact the dealer from whom you
purchased the instrument.
32
The screw is too tight and can not
be loosened.
• The screw is corroded.
• Hitting the screw has damaged it.
➞ Contact the dealer from whom you
purchased the instrument.
The mouthpiece can not be
removed.
• The instrument was dropped or hit
with the mouthpiece attached. Or, the
mouthpiece was inserted with too
much force.
• The instrument was left for a long
period of time with the mouthpiece
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.
• There is a foreign object in the tubing.
➞ Contact the dealer from whom you
purchased the instrument.

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