Yamaha MU100, Руководство пользователя

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Appendix
Troubleshooting
Troubleshooting
Even though the MU100 is exceptionally easy to use, it may occasionally
not function as you expect it to. If that happens, check the possible problems
and solutions below before assuming that the instrument is faulty.
Problem
No power.
No sound.
No sound when playing the MU100
from a computer, sequencer or
external keyboard.
Notes are cut off or omitted.
Reverb, Chorus and/or Variation
effects cannot be heard.
The A/D input sound (mic, guitar,
etc.) cannot be heard.
Possible Cause and Solution
Check that the adaptor is properly plugged into both the AC outlet and the MU100 (See
page 18.)
Check that:
●
The panel volume control is set to an appropriate level.
● Other volume-related parameters are set to appropriate levels. (See Volume and Ex-
pression in the Single Part controls, page 96, and Master Volume and Master Attenua-
tor in the All Part controls, page 98.)
●
Mute or Solo are not active. (See page 85.) If a Part is being muted, or an empty Part is
being soloed, you may not get any sound.
●
The Variation effect settings are appropriate. No sound will be output at all if Variation
Connection is set to INS (page 137), Variation Send is turned on for the Part (page 97),
and NO EFFECT is selected for the Variation Type (page 136). The easiest solution in
such a case is to turn off Variation Send for the Part.
● The EG Attack Time (page 103) is appropriately short, for short percussive sounds.
●
The Velocity Sensitivity Offset (page 111) is appropriate.
●
The Note Limit Low and Note Limit High (pages 110, 128) settings are appropriate. If
the former is set higher than the latter, no sound will be output.
●
The Velocity Limit Low and Velocity Limit High (pages 111, 128) settings are appro-
priate. If the former is set too high and the latter too low, no sound may be output.
Check all MIDI connections, making sure that the MIDI OUT of the external device is
connected to the MIDI IN of the MU100, and that the MIDI IN of the external device is
connected to the MIDI OUT of the MU100. (See pages 33 – 35.) Or, if you are using the
TO HOST terminal with a computer, make sure that the terminal is properly connected to
the computer and that the HOST SELECT switch is properly set for your particular com-
puter. (See pages 35 – 38.) Also, make sure that you have turned on the connected MIDI
instrument or computer before turning on the MU100. If you haven’t, simply turning the
MU100 off and back on again may solve the problem.
The maximum polyphony of the MU100 may be exceeded. The MU100 can play no more
than 64 notes at once. (Though 64 notes may seem to be more than enough, you may run
short when playing a connected keyboard along with some densely arranged song data.)
Check all Reverb-, Chorus- and Variation-related controls: Reverb Send, Chorus Send
and Variation Send in Single Part controls (page 97); Reverb Return, Chorus Return and
Variation Return (when Variation Connection is set to SYS) in All Part controls (pages 98
— 99). Also check the individual effect settings; if no Type has been selected, or if the
parameter settings are too low, there may be no effect sound.
Make sure that the appropriate A/D Part (A1 or A2) has been turned on and that the A/D
INPUT control is set to an appropriate level. Also for best results, make sure that the A/D
input type (Mic, Guitar, Keyboard, Audio) is set to match the input you are using.