Yamaha TG500 316, TROUBLE SHOOTING

316
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)?.