Yamaha TG500 Portable Generator User Manual


 
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Appendix
TROUBLE SHOOTING
Voice Mode Problems
Symptom Possible Cause
No Sound
Wrong pitch.
Unstable/indefinite pitch.
Is the pitch envelope generator set properly? If the L0 through L3 param-
eters are set too low, the resultant pitch may be below the audible range
(page 131).
Is the filter set in such a way that most of the sound is filtered out (page
100 and 122)?
Is the total voice level set high enough (page 105)?
Is the amplitude envelope generator attack time set to an excessively long
value (page 111)?
Is an appropriate wave assigned to the voice (page 107)?
Is the tuning set properly (page 109)?.
Is the note shift parameter set properly (page 110)?.
Is the random pitch parameter set properly (page 110)?.
Is the aftertouch pitch bias parameter set properly (page 143)?.
Is the LFO pitch modulation parameter set to an excessively high value
(page 138)?.
Is the pitch envelope generator set properly (page 131)?.
Multi Mode Problems
Symptom Possible Cause
No Sound
Wrong pitch.
• Are voices/performance combinations properly assigned to the multi instru-
ments (page 199).
• Are the volume levels of the multi instruments set high enough (page 200)?
• Are the note shift parameters for each multi instrument set properly (page
201)?.
• Are the detune parameters for each multi instrument set properly (page
201)?.
Other Problems
Symptom Possible Cause
Wrong pitch. Is the master tune parameter set properly (page 220)?.