Turning The Power On - Yamaha S90 ES Owner's Manual

Connecting the speakers or pair of headphones
Since the S90 ES has no built-in speakers, you will need to monitor the sound of the instrument by using
external equipment. Connect a set of headphones, powered speakers, or other playback equipment as
required.

Turning the power on

Make sure the volume settings of the S90 ES and external devices are turned down to the minimum.
Turn the power on by pressing the [POWER] switch on the S90 ES rear panel, then turn the power on the
amplifiers.
Connecting MIDI devices or a Mixer
Make sure that all volume settings are turned down all the way to the minimum. Then turn on the every device in your setup in the
order of MIDI masters (controllers), MIDI slaves (receivers), then audio equipment (mixers, amplifiers, speakers, etc.).
When powering down the setup, first turn down the volume of each audio device, then switch off each device in the reverse order
(first audio devices, then MIDI).
Powered speaker (Left)
Headphones
OUTPUT L/MONO
1
MUSIC PRODUCTION SYNTHESIZER
MIDI master
Powered speaker (Right)
OUTPUT R
PHONES
S90 ES
MASTER VOLUME
2
POWER
ON!!
S90 ES
Power supply connections
3
Audio equipment (first mixer, then amplifier)
Owner's Manual
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