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PCLONE2 

– Analog Percussion Synthesizer 

Welcome to the PCLONE2 build instructions! 

I’ll assume you’ve done some soldering before and skip the basics, 
however if you do need some tips or reminders on soldering technique, 
please check out my page 

here

. As kits go, this is moderate in complexity. 

You should give yourself at least 3-4 hours to make the kit and go slowly 
and carefully 

– it is much easier to avoid a mistake than fix it afterwards… 

Here is an image of the main PCB layout which can be useful to refer to as 
you work, especially if you accidentally put a component in the wrong 
place, covering up the designator (Click 

here

 for a bigger version) 

 

 

 

Summary of Contents for PCLONE2

Page 1: ...check out my page here As kits go this is moderate in complexity You should give yourself at least 3 4 hours to make the kit and go slowly and carefully it is much easier to avoid a mistake than fix i...

Page 2: ...band The body of the resistor may be a tan or blue colour depending on the type carbon or metal film The body colour doesn t matter so don t worry if the colour does not match the photo Designators o...

Page 3: ...YELLOW R32 220k RED RED YELLOW R10 1M BROWN BLACK GREEN R16 4M7 YELLOW VIOLET GREEN Note The space for R3 is not populated The kit does contain spare resistors and some extras of certain useful value...

Page 4: ...d D4 are small signal diodes with a small orange glass body with a black stripe Make sure the black stripe lines up with the stripe marked on the circuit board symbol D1 is a larger rectifier diode wi...

Page 5: ...pin header strip Take care to align the notch on the end of the 8 pin sockets with the marking on the board In this layout the notch is towards the bottom of the board for each socket With all the so...

Page 6: ...rs Designators on PCB Value Markings C1 C2 C6 47nF 47n C13 22nF 22n C16 3 3nF 3n3 C4 C5 C7 C15 1nF 1n The markings will contain other codes e g 47nK100 but check they start with the indicated value e...

Page 7: ...egs Solder the LED It is important that this goes the right way around you ll see that the marking on the board shows a flat side next to one of the legs beside the PWR label The LED has a matching fl...

Page 8: ...up or you might let the magic smoke out of them as soon as you apply power There is an extra 2N3904 in the kit hang on to it to use for mods When you solder them make sure the D shape of the case line...

Page 9: ...next to one hole Put the longer leg of the capacitor through the hole The capacitor body will also have a white stripe to mark the negative terminal aligned with the shorter leg As with the box capac...

Page 10: ...ou trim back the excess component legs on the underside of the board since the back of the board will be mounted close to the metal bodies of the potentiometers The rear of the board should look a bit...

Page 11: ...holes Note that the headers are attached to the underside of the PCB as shown in the photo It can help to stand the board on the header while soldering support the other edge of the board so that the...

Page 12: ...6110 Op amp SIL9 9 pins in a single row For IC1 IC3 IC4 IC5 make sure that the notch or dimple on the body of the chip matches the notch shown in the symbol on the board which should also match the no...

Page 13: ...There is a dot marked on the board A firm push is needed to insert IC6 but take special care not to bend of break any legs These are old chips no longer manufactured and your chip may have been recov...

Page 14: ...d so on to the front panel Locate the front panel PCB and ensure that the pre soldered connectors on the front panel are undamaged Locate the acrylic case front panel and remove all the protective fil...

Page 15: ...PCB so that all the holes line up and the large round cut out is on the right side and the PCB connectors are on the opposite side Stick half of one of the pads to the PCB in the centre of the circula...

Page 16: ...Stick the piezo disk to the pad in the centre of the cut out so that it fits inside the cut out space and the piezo wires lead off to the left 9 o clock position...

Page 17: ...Carefully slide the acrylic panel along the wires being sure not to break the connection to the piezo disk The PCB should now look like this Remove all the nuts and washers from the potentiometers...

Page 18: ...pliers to carefully bend the legs of the potentiometer upwards in the same direction as the spindle as shown below Place the 470R potentiometer through the sweep position and attach the washer and nut...

Page 19: ...Use a generous amount of solder to attach the legs of the potentiometer to the solder pads on the PCB A wide roll of tape makes a good support for the board during this process...

Page 20: ...meters I recommend you work through them in the order of the following table for best access during soldering 470R LIN Sweep 1M LOG Decay 100K LOG Rate 100K LOG Sensitivity 100K LOG Depth 100K LOG Pit...

Page 21: ...the switches Find the six pin DPDT switch and place it in the Sweep Direction switch position Place a tabbed washer over the front of the switch such that the tab faces backwards through the locating...

Page 22: ...ke solder about 5cm long and bend into a U shape so it can be fed through the middle holes in the switch pins and solder it in place Cut the middle section of the wire out and repeat for the other two...

Page 23: ...down to meet the pads making sure they are not touching the body of the switch Use generous solder blobs to connect the wires to the pads Repeat for the VCO Wave switch using one of the remaining thre...

Page 24: ......

Page 25: ...witches are now soldered to the PCB Carefully bend the piezo wires through 90 degrees making sure that they can be routed up to between the Click and VCO Wave switches without the black and red wires...

Page 26: ...crossing over each other or getting trapped in front of one of the washers Then replace the nuts At this point locate the four M3 washers and slide them in between the PCB and front panel around the...

Page 27: ...piezo disk but leave the backing material on the top side so the it will not stick to the face place Attach the face place using the four M3 12mm bolts and the hex standoff pillars Use the two M3 nuts...

Page 28: ...Ensure that all the nuts are fitted snugly into the holes in the face place and that the piezo wires are lying flat The front panel is now coming into shape...

Page 29: ...Locate the 3 5mm jack sockets and knurled nuts Bend the shield pin of each socket back along the body at about 45 degrees...

Page 30: ...Insert all five sockets in their holes with the shield tabs facing towards the PCB Join all the shield tabs by soldering a single piece of the bare copper wire between each of them...

Page 31: ...zo wires and strip the ends Connect the black wire to the shield tab of the Input socket and the red wire to the middle pin of the socket as shown Join the upper pin of the Input socket to the Trig pa...

Page 32: ...he upper pin and shield tab of the Output socket Mount the main PCB on the control panel PCB making sure the headers and sockets line up correctly Solder the wires from the output socket on to the mai...

Page 33: ...wn in the photo below Most guitar pedal style 9V DC adaptors use a negative tip supply and have and the wires should be connected as shown If you want to use a centre pin positive supply solder the wi...

Page 34: ...off Locate the four flange nuts and remove the film from the acrylic side panels Push the hexagonal parts of the flange nuts into the holes using pressure from your thumb Do not hammer them or use a...

Page 35: ...case Make sure the flange nuts are on the inside Push on the 5mm acrylic side cheeks which hold everything together At this point leave the back of the case off so we have access to the electronics i...

Page 36: ...reful not to over tighten the bolts as this could crack the side panels Wind all the pots to their lowest position and attach the knobs when pots are at minimum the marker on the knob should be at abo...

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