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Project

update march 2017

update Jun 2017


Table of Contents



update the Firmware v1.023 (30 May 2017)

(current: http://www.e-licktronic.com/forum/download/file.php?id=106)

Release Notes:

http://www.e-licktronic.com/forum/viewtopic.php?f=25&t=864&p=4853#p4853   (You should replace C89 (BD-Section) and C163 (Snare Section) by 10nF filmcap (Build manual and Mouser BOM updated)


HH Bug

http://www.e-licktronic.com/forum/viewtopic.php?f=24&t=1233&p=7905#p7905


MIDI SYNC ISSUE (only if happen)

-Sync test in slave mode with a TR505 and with Ableton and Midi interface.

Sync with hardware is perfect but Nava loose some clock signal when sync with a software thru a Midi interface.

Replace R365 value by 1K and R314 value by 4K7 to increase Midi signal should solve this issue


only for rev.1.00 pcb: (not for 1.01, 1.02)

Issues: (respect the change for C89 and C163 too (to 10nF)

Afaik the first pcb (v1.0 ) has 3 bugs, all of them are highlighted in red in the build guide and are easy to fix.

BD: http://www.e-licktronic.com/forum/viewtopic.php?f=24&t=889&start=50#p6085


SD: http://www.e-licktronic.com/forum/viewtopic.php?f=24&t=970&hilit=snare+q43&start=40#p5823

Q43, Q46, Q49  Mixed Collectors and Emitters

This is a mistake. When we designed Nava SD PCBs, we placed this transistor to act like switches to generate SD envelopes. We had some sound test and it was okay for us but this transistors should act like amplifier.

To solve this issue you need to bend transistors pin 1 and 2 to swap their position in the pad.


Master: http://www.e-licktronic.com/forum/viewtopic.php?f=24&t=850&hilit=master+mods&start=10#p4855

To bypass the muting circuit simply omit both transistors Q82 and Q83 and you don't need all part from the muting circuit (C142, C143, D193, D194, D195, R468, R469, R470, R471, R472)


open: check in BD C8 for closer BD Decay (the Nava Decay is bigger as the original)


modify C153/ C154 to 10uF  check: http://www.e-licktronic.com/forum/viewtopic.php?f=24&t=850&hilit=master+mods&start=50   &  https://www.gearslutz.com/board/electronic-music-instruments-electronic-music-production/584333-tr909-owners-stereo-out-less-bass-than-individual.html


my version was build with addon second Noise source for fixing the loudness balance with snare and handclap



MUX BOARD:

http://www.e-licktronic.com/en/nava-parts-kit/57-mux-sh-boards.html


Bill of Materials from S_H Board v1.00.sch, 16 parts, grouped by values, as of 26/09/2017 10:33:34


PartValueDevicePackageDescriptionQty
C1, C2, C3, C4, C5, C6, C7, C8470pC-EUC0805C0805CAPACITOR, European symbol8
C9, C10100nC-EUC0805C0805CAPACITOR, European symbol2
IC14051A4051ADIL16-S8-channel ANALOG MULTIPLEXER1
IC24051D4051DSO168-channel ANALOG MULTIPLEXER1
IC3, IC4TL074DTL074DSO14OP AMP2
J1, J2
MA03-1MA03-1PIN HEADER2



Power connection with MTA156




Nava_v1.0l_Schematics.pdf

Nava_v1.0 silkscreen.rar (brd File)