DISCLAIMER:
We are not responsible for anything wrong (including electric shocks, malfunctions, fires, accidents involving a soldering iron) that might happen during the assembly of the kit. Everything you do while assembling the kit is at your own risks.
Bill of material:  (including resistor color code)
Resistors:              
		-1X 1K 1% (Brown, black, black, brown, brown) :R4
 		-2x 10K 1% (Brown, black, black, red, brown) :R2 & R3
		-1x 22K 5% (Red, red, red, gold)  :R5
 		-1x 1M 1% (Brown, black, black, yellow, brown) :R1

Capacitors:          

		-1x 4,7nF (labelled 472)  : C2
		-1x 15nF (labelled 153)  : C4
		-1x 22nF (labelled 223)  : C1
		-1x 100nF (labelled 104)  : C3
		-1x 1uF Non polarized  : C5

Diodes:                  
		-2x 1N4007 (or 1N4001)  : D1 & D2
		-2x 1N4148  : D3 & D4
		-1x 5mm LEDS Violet

IC:                            -U1  : 1x MAA501 Metal can 

Pin headers:         -2 X 5 pin   2,54mm Male ( 10 pins Eurorack connectors)
  		-2 X 5 pin   2,54mm Female
		-2x mono jacks 3,5mm with nuts.

Miscelaneous  :    -1x Power Ribbon Cable 16Pins to 10Pins 


Assembly instructions (Unknow Pleasures, Rev A, Black PCB)

Ready for populating the main board?













Step 1: 
How to soldering Trough Holes components as Surface mount components:

Only one rule for soldering CMS: Apply solder  on the first pad only, solder the first leg of the component, and then directly solder the rest. Using solder flux for the Euro connectors and Op-amp prevent the troubles as solder bridge and insufficient solder.











Step 2:

The Diodes:
Solder the polarized diode D1, D2 and the small signal diodes D3 and D4, pay attention to their orientation since they're polarized components























Step 3:
The Resistors:
At first, put R1: 1M 1% (Brown, black, black, yellow, brown) and  the 2 x 10K resistors (Brown, black, black, red, brown) 













And R4 : 1K  (Brown, black, brown, brown)  and finelly R5: 	22K 5% (Red, red, red, gold)



































Step 4:
The capacitors:
All are non polarized caps:
C1: 22nF (labelled 223)  
C2: 4,7nF (labelled 472)  
C3:  100nF (labelled 104)  
C4: 15nF (labelled 153)  : C4
C5: 1uF non polarized (The big grey box)




































Step 5, the violet Led:
Pay attention to the orientation since its a polarized component. Flat side on the footprint= Short Leg.
























Step 6, the Erthenvar jacks:
At first bend two small legs and solder as the pictures on the pads labelled Audio Out and CV Out. Mount the two Erthenvar jacks. Pay attention to they’re orientation!!!  Insert and solder the small leg on the jack lug to connect the PCB’s outputs to the jack’s tip (Audio Out and CV Out). No need to solder the pad labelled «GND» to the jack ground, because the jacks with nuts provide a good electrical contact.




















































































Step 7, the big deal: Soldering the IC!!!
From time to time, a Youtube is more efficiency than a long speak:












Final Step: 
 The Eurorack power connector:
When the pin headers are soldered, immediately verify the solder quality & if you didn't forget any pin.
Because the Eurorack pin connectors are strong, apply solder flux to the CB’s pads before soldering.
It prevent the troubles such as solder bridge and insufficient older.









Your build is ready, enjoy Unknown Pleasures!!!!!


Troubleshooting:
-Sounds, but no light: Check the Led polarity
-No CV Out: Check the D4 diodes polarity or the CV jack out pins.
-No sound but the Led is full light: Check the soldering of the eurorack connector, re-solder the pins with Solder Flux.
-No sound, no light, no CV: 
Check if the rinbbon’s Red Stripe corresponding to the PCB silkscreen.
 Check the polarity of the 2x 1N4007 Diodes (big black diodes) 
3) Check the Op-amp polarity, especially the pin N8 (See youtube démo)




FAQ:
-Whats this littles pads? -Do not pay attention to these 8 little pads, they are used to ensure electrical contact with the touch pad on the other side PCB’s.














Credits:
Few years ago, I’ve made my first electronic build. That was a venerable Crackle Box clone, it was a schematic from Michel Waisvisz discovered on the excellent sonelec.com website. 
I want to thanks Michel Waisvisz to his nice creation that inspired Unknown Pleasures. It’s a back to source for me.
Remi Maillard for the enthusiasm to initiate in electronics many Diyers, what I tried to do myself with Razmasynth.
I want especially thank also my friend Wilfried «Ikkini» from synthe-modulaire.com. He initiate me in modular synthesis and spend lot of time to test my prototypes and and it is due his kindness and rigorous Alpha & Beta testing that Razmasynth can offer nice, powerfull and noisy modules for DIYers. What? You don’t know the «Wilfried’s Test»?????


Releases:
-RevA: Original release (Black PCBs) December 2014. 100 PCB: 50Kits, 20 full assembly units.