Elby Designs EURO SERGE ES21 Instructions for use

ES21 10-Step Sequencer
ELBY Designs - Laurie Biddulph
9 Follan Close, Kariong, NSW 2250, Australia
[e-mail] http://www.elby-designs.com
1 of 3
ES21 10-Step Sequencer
Construction Guide
Revision 0.2
March 20th, 2016

ES21 10-Step Sequencer
ELBY Designs - Laurie Biddulph
9 Follan Close, Kariong, NSW 2250, Australia
[e-mail] http://www.elby-designs.com
2 of 3
Due to an error in production there are currently two variants of the same revision of the
Main PCB.
Please refer to the table below to determine which variant you have and which Build
Guide you should use. The identification is achieved by the location of R303.
If your PCB has R303 in this location then
continue with the instructions in the
document
If your PCB has R303 in this location then
please follow this link to the appropriate
Build Guide

ES21 10-Step Sequencer
ELBY Designs - Laurie Biddulph
9 Follan Close, Kariong, NSW 2250, Australia
[e-mail] http://www.elby-designs.com
3 of 3
Construction of the ES21 requires the assembly of 4 separate boards:-
Column 1 - ES21 Support PCB (3D Model) (Overlay)
Column 2 - ES21 Support PCB (3D Model) (Overlay)
Column 3 - ES21 Support PCB (3D Model) (Overlay)
Main - ES21 PCB (3D Model) (Overlay)
Constructors should refer to the PCB Overlays for any specific
comments regarding the board assemblies, the Bill of Materials
for the current value of all components and General
Construction Notes for general pcb assembly guidelines.
1.Start by preparing the 10x LEDs as per the instructions in
the General Construction Notes
2.Fit all components to the boards following normal
assembly guidelines excluding the 10x LEDs and
MANUAL pushbutton switch
3.Fit the Column 2 assembly to the front panel.
4.Mount 5x LEDs ensuring the correct orientation of the
LED wires in to the board and solder in to place
5.Remove the assembly and repeat for the Column 3
assembly
6.Mount the pushbutton switch on to the Column 1
assembly but do not solder
7.Offer the assembly up to the front panel and secure using
the supplied nuts and then solder in to place
8.Mount the other assemblies on to the front panel and secure in to place
9.Fit the back-board assembly ensuring the correct alignment of the IDC Receptacles in to
their respective sockets
Calibration
The ES21 does not require any set-up or calibration
Addendum
On the V0.1 revision of the ES21 Support Board, the pad for J6_4 has been cut and should not be
soldered to the connector.