Korg SP-250 manual Appendix, Troubleshooting, Polyphony, Problem Possible remedy

CHAPTER

7

Appendix

Troubleshooting

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.

Problem	Possible remedy	Page
The instrument	Check that the AC adapter is correctly connected to the piano and	11
will not turn on.	the outlet.
No sound.	(1) Make sure that the volume is not set on 0. If it is, bring it up to	13
	an adequate level.
	(2) Make sure there is not a jack plugged into one of the PHONES	13
	connectors. This would turn the internal speakers off. if so, unplug
	the jack.
	(3) Make sure that the MIDI Local function is not set on OFF. If it	28
	is, set it to ON (or turn the instrument off and then on again).

Polyphony

The SP-250 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.

40 Chapter 7