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KORG SP-300 User Manual: Appendix; Troubleshooting; Polyphony

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If during use any of the following problems should occur, carefully examine the
instrument to see if you can find out what the problem is, and try resolving it by fol-
lowing the suggestions below. If the instrument will still not function properly refer
to your dealer or to an Authorized Korg Service Center.
The instrument
will not turn on.
No sound.
The SP-300 contains sampled sounds, which have been recorded, analyzed and pro-
cessed from the actual sounds of the original musical instruments. These sounds
usually consist of one or more different samples reproduced by pressing a key. Each
sample is played back by a single oscillator. Sounds using just one oscillator have a
full polyphony of max. 60 voices, while sounds using two oscillators have a limited
polyphony of max. 30 notes. Sounds using more oscillators have a more limited
polyphony. When the number of notes exceeds the limit of the sound, some notes
will be stopped, so that the new ones can be heard.
Furthermore, when playing in Layer mode with more than two notes, the max.
polyphony depends on how many oscillators are used in total. Using the REVERB,
CHORUS further reduces the polyphony, respectively, by 10 and 3 notes.


Possible remedy
Check that the AC adapter is correctly connected to the piano and
the outlet.
(1) Make sure that the volume is not set on 0. If it is, bring it up to
an adequate level.
(2) Make sure that the internal speakers are not turned off.
(3) Make sure that the MIDI Local function is not set on OFF. If it
is, set it to ON (or turn the instrument off and then on again).


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