Alesis QS Series User Manual

Alesis QS Series Keyboards Service Manual V1.00 11/19/06
5
1.40 QSR
Many current keyboard players already have their favorite controller keyboard, but still
desire the great sound provided by the Alesis QS Series. Since multiple keyboards can take up
excessive space, the obvious solution is a rack mount sound engine without keys. The QSR is
just that solution. Whether used for the road or in the studio, the QSR is a powerful addition to
any MIDI setup. Minor improvements have been made through the pre production lifetime of
this product. This has resulted in several main PCB revisions. Each one incorporates previous
changes as well as any new improvements made. These changes are outlined in Appendix A.
This manual references the following schematics and component I.D.s unless otherwise noted:
PCB Schematic Revision
Main A
Front Panel X2

Alesis QS Series Specifications

General

Multitimbral	16 parts
Oscillators	Sample-based
Effects	Reverb, Chorus, Delay, EQ, Distortion
Display	LCD
MIDI	In, Out, Thru
Memory	User Programs
Outputs	Stereo
Weight	11 kg