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Project

Projecttitel:cgs75 Serge VCS in MOTM

Status:FINISHED

Startdate: 28.02.2014

Duedate: 02. July 2014

Manufacture link: http://cgs.synth.net/

related articles:

http://electro-music.com/forum/post-281432.html

 

 

BOM:

PartQuantitymy info
Capacitors
47pF9mlcc
1n2wima mks
10n2wima mks
22n1wima mks
100n6wima mks
10uF 25V2 
47uF 25V1 
Resistors 1% Metallfilm
100R1 
330R2 
1k2 
1k81 
2k23 
8k21 
33k2 
68k1 
82k5 
100k18 
150k1 
200k1 
220k4 
330k3 
470k2 
600k1 
820k4 
1M9 
10M2 
100k trimmer1 
50k lin pot (FALL,RISE POT (tick)2 
20k lin pot for processor (tick)1 
100k lin pot (CV-pots) (tick)2 
Semi's
LED1 
1N41486 
2N39043 
2N39063 
5V6 400mW Zener1 
TL0711 
TL0722 
TL0741 
LM39001 
Misc.
Ferrite Bead2 
SPST switch3 
0.156 4 pin connector1 
CGS75 PCB1 
Panel Bridechamber1 
PotBracket - own1 

 

Wiring:

ac outac out jack
bobi-polar output jack
outout jack
trig intrigger in jack
cy sw(x 2) cycle switch. Switch connects these together for cycle mode
endend out jack
rrwrise rate wiper
 CW end of rise rate pot connects to +ve
 CCW end of rise rate pot connects to 0V
frwfall rate wiper
 CW end of fall rate pot connects to +ve
 CCW end of fall rate pot connects to 0V
expexponential cv jack
rise cvrise cv jack
both cvboth cv jack
ininput jack
swf(x 2) fall switch. Switch connects these together for exp. response.
swr(x 2) rise switch, Switch connects these together for exp. response.
rwrise pot wiper
rccwrise pot counter-clockwise
rcwrise pot clockwise
fcwfall pot clockwise
fccwfall pot counter-clockwise
fwfall pot wiper
fcvfall cv jack
poutprocessor output jack
pccwprocessor pot ccw
pcwprocessor pot cw
pr1processor input
pr2processor pot wiper



Setting up - Calibration

Adjustments on the VCS board are set to obtain a 0 to +5 volt level when the unit is cycling, producing a 100Hz triangle wave. An oscilloscope is required for this adjustment. In an oscilloscope is not available, adjust for the least distorted sounding waveshape.

 

 

 

 

Schematics:

keep attention on the Processori input jack with 200K resistor at the jack switch to +V.

also make sure you have all 3  "bridges" correctly filled with a piece of wire or rest from a resistor leg, otherwise the module dont work correct.