Projecttitel: Syncussion SY-1MStatus:Startdate: 10 May 2018Duedate: 15 Jun 2018last update: 05 Sep. 2018Manufacture link: http://www.psycox.co.ukFacebook group: https://www.facebook.com/groups/237916856594386/?ref=bookmarks |
Attention, this guide is only for the psycox Version SY-1M , the main difference on this Version is the addional Midi function, Matched SMD Transistors and improved powersupply. check my SY-1 page for the thehumancomparator version. |
if you need help in SMT soldering or looking for a person who build the device, feel free to ask me Impressum - Info |
Table of contents
general discussion
https://www.muffwiggler.com/forum/viewtopic.php?t=195208&start=0
for SY-1M rev.1 (sold in Arpil 2018) MOUSER BOM https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=1305 e9618c
or use rev.1 MOUSER/DIGIKEY BOM Cross-reference : VIEW IN GOOGLE DOCS
for rev.2 (sold since 05.September 2018) https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=b83daa5bf6
for rev.1. and rev.2:
add 2x Multiturntrimmer for CV V/Oct or 4x if you want multiturn for V/OCT Midi too.
order: T67W-100K from tme.eu or from mouser:
858-67YR100KLFTB
rev.1 customers from europe:
they seem correct now and save you nearly 50€ when ordering parts. remove from one list (because the´re few parts double) the 220uF caps the CD4069UBE 10uF capacitors change the PSU DC-JACK to the same as powersupply is (2.1mm or 2.5mm) add 4x 1nF styroflex or C0G capactors for the CD4069UBE VCOs |
for both versions: (not in BOM)
C1 C2 C8 C10 must be a C0G/NP0 or Styrene (polypropylene caps do not fit due to their size, maybe) order 4xC0G : 810-FK28C0G2A102JN06 or 4x Styrene: 23PS210 |
A VCO 1 only
B VCO 1 modulates VCO 2 frequency, the latter is routed to the VCF
C Both VCO to the filter but VCO1 at reduced level.
D EG 1 modulates VCO1, EG2 modulates VCO2. Both VCO to the filter
E VCO 1 modulates VCO 2 which has a sawtooth wave. VCO 2 to VCF
F Noise to VCF, no oscillators
Power Input
the BOM use a 2,5mm middle Pin powerconnector BUT the most powersupplys use a 2.1mm middle pin, you can´t use a 2.1mm powersupply with a 2.5mm connector.
the most webshops have more 2.1mm powersupplys in stock and 2.1mm is the defacto standard.
middlepin is +
Spec: DC 9V output with 300mA or more, 12v Powersupplys works too, but the regulators only waste the voltage to heat
Pinheader assembly
before you solder the pinheaders to the top pcb
make sure the pcb is flat and do not bend.
make sure you solder the MIDI channnel switch, midi input jack and power input to the bottom side like :
if you have everything soldered and you´re ready for the first test, make sure all IC´s and THT Trannys have the correct orientation, dont install the ATMEGA for the first test
please doublecheck the polarity of your powersupply, middle pin is +
set the powerswitch to off,
connect the powersupply
no difference in sound, gain etc.
Power Modification
install on new build:
preinstall in case your coil makes hizz/hum: (click to enlarge)
https://www.diysynth.de/?cat=c17_Staubschutzhuellen-Staubschutzhuellen.html