Troubleshooting - Yamaha S70XS Owner's Manual

The following table provides troubleshooting hints and page references for some common problems. You may solve your
problem by executing the Factory Set (page 18) after backing up your data to an external storage device. If the problem
persists, then contact your Yamaha dealer or service center (page 63).
No Sound
 Is the S90 XS/S70 XS properly connected to related external equipment (e.g., amplifier, speaker, headphone)
via audio cables?
Since the S90 XS/S70 XS has no built-in speakers, You will need an external audio system or a set of stereo headphones to properly
monitor it.
 Is the power of this synthesizer and any external equipment connected to this synthesizer turned on?
 Have you made all the appropriate level settings—including the Master Volume on this synthesizer and the
volume settings on any connected external equipment?
Is the Foot Controller pressed down (when it is connected to the FOOT CONTROLLER jack)?
 Are all four Sliders set to appropriate levels (other than zero or minimum)?
 Is the Local Control set to OFF?
If this is set to off, the internal tone generator will not sound.
[UTILITY]  MIDI  Local Control
 Are the MIDI volume or MIDI expression settings too low when using the external controller?
 Are the effect and filter settings appropriate?
If you are using the filter, try changing the cutoff frequency. Some cutoff settings may filter out all of the sound.
[VOICE]  [EDIT]  Effect
[VOICE]  [EDIT]  Filter/EG
[PERFORM]  [EDIT]  Common  Effect
[PERFORM]  [EDIT]  Common  Filter/EG
[PERFORM]  [EDIT]  Part selection  Filter/EG
[MULTI/SEQ PLAY] (selecting Multi mode)  [EDIT]  Common  Effect
[MULTI/SEQ PLAY] (selecting Multi mode)  [EDIT]  Part selection  Filter/EG
 Is "Vocoder" selected as the Insertion Effect Type of the Voice?
If so, set the parameters related to the AD Input Part and MIC INPUT connector to the appropriate values then play the keyboard
while inputting your voice into the microphone connected to the S90 XS/S70 XS. Check whether or not the INPUT GAIN knob on the
panel is set to the minimum position.
[VOICE]  [EDIT]  Effect  Ins Connect Type: vocoder
[UTILITY]  [VOICE]  A/D Out  Output Select: vocoder
 Are the volume or expression settings too low?
[UTILITY]  General  Volume
[VOICE]  [EDIT]  Play Mode  Volume
[VOICE]  [EDIT]  Easy Element Edit mode via the Slider Function button  Sliders
[PERFORM]  [EDIT]  Common  Play Mode  Volume
[PERFORM]  [EDIT]  Part selection  Play Mode  Volume
[MULTI/SEQ PLAY] (selecting Multi mode)  [EDIT]  Part selection  Play Mode  Volume
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S90 XS/S70 XS Owner's Manual

Troubleshooting