Yamaha S90 ES User Manual (English)

Other manuals for Yamaha S90 ES

Owner's Manual204 pages

Data List80 pages

Quick Start Guide4 pages

Questions and Answers:

J
Julie HortonAug 18, 2025
What to do if my Yamaha Synthesizer S90 ES sound is distorted?
- D
  Dylan BurnsAug 18, 2025
  Distorted sound on your Yamaha Synthesizer S90 ES can be caused by several factors. Check if the effect settings are appropriate, as some effect types or settings can cause distortion. Also, verify that the filter settings are correct, since excessively high filter resonance settings can lead to distortion. Finally, ensure that the volume isn't set so high that clipping is occurring.
A
Anthony MarksAug 21, 2025
Why does Yamaha Synthesizer S90 ES playback continue without stopping?
- L
  Leslie JohnsonAug 21, 2025
  If playback on your Yamaha Synthesizer S90 ES continues without stopping, and the [ARPEGGIO] button is turned on, press it so that its lamp is turned off.
M
Melanie PhillipsAug 25, 2025
Why is the arpeggio not starting on my Yamaha Synthesizer S90 ES?
- A
  Anthony GuzmanAug 25, 2025
  If the arpeggio on your Yamaha Synthesizer S90 ES isn't starting, check if the [ARPEGGIO] button is turned on or off. Also, verify whether you have selected a User Arpeggio type that contains no User data. Finally, ensure that the Arpeggio related parameters, such as Note Limit and Velocity Limit, are set appropriately.
L
Linda SmithAug 27, 2025
What to do if Yamaha Synthesizer S90 ES sound is choppy and intermittent?
- P
  Peggy BaileyAug 27, 2025
  Choppy and intermittent sound on your Yamaha Synthesizer S90 ES can occur if you are exceeding the maximum polyphony of the S90 ES. Also, check if the Mono/Poly parameter is set to “mono.” If you want to play chords, change this parameter to “poly”.
G
Gregory MarshallAug 31, 2025
Why does my Yamaha Synthesizer S90 ES have no effects?
- K
  Kristin StevensAug 31, 2025
  If no effects are being applied on your Yamaha Synthesizer S90 ES, first check if the [EFFECT BYPASS] button is turned off. Next, ensure the Control sliders (for REVERB and CHORUS) are set to appropriate levels, not zero or minimum. Also, verify that the Elements’ Effect Output parameters haven't been set to “thru” in the effect setting display. Finally, confirm that the effect types haven't been set to “thru” or “off.”
R
roseirwinSep 2, 2025
Why are the pitches or intervals wrong on my Yamaha Synthesizer S90 ES?
- J
  Jacob ScottSep 2, 2025
  Incorrect pitches or intervals on your Yamaha Synthesizer S90 ES can stem from several settings. Check if the Master Tune parameter is set at a value other than “0”. Also, verify if the Note Shift parameter is set at a value other than “0”. When the voice produces a wrong pitch, make sure the appropriate tuning system is selected from the Micro Tuning parameter and that the LFO Pitch Modulation Depth isn't set too high. If the Performance/Multi produces a wrong pitch, check that the Note Shift or Detune parameter of each Part is set to “0”.
S
Stephanie GuzmanSep 5, 2025
How to stop the arpeggio on Yamaha Synthesizer S90 ES?
- A
  Anthony LoveSep 5, 2025
  If the arpeggio playback on your Yamaha Synthesizer S90 ES doesn't stop when you release the key, set the Arpeggio Hold parameter to “off.”
L
Laurie VasquezSep 8, 2025
Why is the microphone not working properly on my Yamaha Synthesizer S90 ES?
- A
  apattersonSep 9, 2025
  If the microphone isn't working correctly with your Yamaha Synthesizer S90 ES, check that the S90 ES is in Voice mode. Also, verify that the Gain Knob on the rear panel is not set to the minimum position.
R
Richard MillerSep 12, 2025
Why can't I enter the Edit mode on my Yamaha Synthesizer S90 ES?
- M
  Matthew RodriguezSep 12, 2025
  If you cannot enter the Edit mode on your Yamaha Synthesizer S90 ES, check whether the Category Search function is turned on. Also, verify if the S90 ES is in File mode.

Yamaha S90 ES Specifications

General

Type	Synthesizer
Polyphony	128 notes
Wave ROM	175MB (when converted to 16-bit linear format)
Sound Engine	AWM2 (Advanced Wave Memory 2)
Keyboard	88-key Balanced Hammer Effect
Presets	512 Normal Voices + 64 Drum Kits
Effects	Reverb, Chorus
Sequencer	16-track
Display	240 x 64 dot LCD
Connectivity	MIDI In/Out/Thru, USB, Foot Controller, Foot Switch
Power Supply	AC Power