Yamaha FS1R Owner's Manual page 80

Unstable Sound
Performance/Part Settings
•Is the Fseq Switch parameter turned "on"?
Delayed Sound
Voice Settings
•Check the delay setting (Hold Time) of the operator EG.
•Is the operator EG attack time (Time1) setting too slow?
Sound Cuts Out
General
•Check your audio cables and connections
Performance/Part Settings
•Have you exceeded the maximum polyphony of the FS1R?
•Is an EQ gain parameter set too high?
•Is the mono mode selected?
Voice Settings
•Has the maximum usable polyphony been reduced because you are using a filter?
•Are you applying tremolo via LFO1?
•Is a voiced operator Key Sync parameter (EDIT [VOICE]-OPERATOR-Osc-Key Sync) set to "off"? If so, the sound
may cut out when the phase of the operator waveform is reversed.
•Is an unvoiced operator bandwidth parameter (EDIT [VOICE]-OPERATOR-Band Width) set to "0"? This can cause
the unvoiced operator output level to become unstable (regardless of the EDIT [VOICE]-OPERATOR-Output Level
setting), with the effect that the sound seems to cut out.
Sound Won't Stop
Voice Settings
•Is the operator EG Level4 parameter set properly?
•Have you changed the MIDI channel while holding the sustain pedal on?
Distorted Sound
Performance/Part Settings
•Some preset voices are intended to be used with the filter. The sound may be unnatural if the filter is not used.
•Make sure that the output level and EQ gain settings for each effect are not too high.
•Is a part volume parameter set too high?
Voice Settings
•Is the filter input gain parameter set too high?
•Have you set the FS1R so that velocity or the FORMANT or FM knob will increase operator output level (EDIT
[VOICE]-OPERATOR-Sns-Amp Velocity or EDIT [VOICE]-COMMON-Others-Formant/FM parameters set to "out" with
a positive value)? If so, the total of the root and added offset values can exceed the maximum output level setting
of "99". This problem can be solved by reducing the output level of the operator, or specifying a smaller offset
value.
•Is a totally parallel algorithm selected (EDIT [VOICE]-COMMON-Others-Algorithm = 1)? In this case the sound can
become distorted if the operator output level is set too high (EDIT [VOICE]-OPERATOR-Osc-Output Level). To solve
this problem adjust the output level by using the EDIT mode [VOICE]-OPERATOR-Osc-OP Att parameter.
•Is the bandwidth of an unvoiced operator set to "0"?
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