3TrinsRGB+1c Assembling instructions from 2019

Assembling this kit can take a while, but if you follow the instructions it will go fater then if you dont follow them, even if you are a experienced solderer. This is because some things are unexpected and not as usual.

TIP: BE VERRY CARFULL WHEN CUTTING OF LEGS OF COMPONENTS, IT IS TEMPTING TO GO FAST.. BUT THEN THERE IS A LARGE CHANCE YOU WILL CUT OF ONE OF THE SMD COMPONNETS BY ACCIDENT ESPECIALY WITH THOS FLAT BOTTOM CUTTERS, I JUST CUT WITH THEM ON A ANGLE WHEN ASSEMBLING THIS SYNTH.

This is the assembling video (https://www.youtube.com/watch?v=QqKOfuUpSV8) of the previous version of the kit, it is good to watch it also, because the assembling process is pretty much the same, there is just less components to solder.. (stil it will be allot of work).

Start with the small components and build up toward bigger ones so you can put the PCB Face down on your table while soldering.

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  1. ALL THE COMPONENTS YOU PUT IN NEXT SHOULD NOT BE SOLDERED, THEY WILL BE SOLDERED LATER!
  2. Scroll the pot above scroll has a different color, it is a 10k potentiometer (says 103 on bottom), cut of or bend the flat of it so it does not push against the top pannel when it is put on (right bottom pot).
  3. Put in all the other pots, says 203 on bottom.
  4. Check the image to see what switch goes where, no polarity.
  5. Put the spacer PCB (white PCB with 2x20 holes in it) under the gray 2x20 header socket, have polarity.
  6. Basically put in all the components that are left over.
  7. When all components are put in, put on the top pannel and mount all the nuts for all the components and bolts.
  8. When all components are mounted, check if the top pannel aligns straight with the main green PCB and that all is straight.
  9. Flip over the device with a finger on the gray header socket, otherwise it falls out.
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    Testing and possibly trouble shooting:
  1. Measure over the 3 solder points of the 7805 using a multimeter in beep setting. if there is a long beep that does not stop after a short time there a short circuit some where. look over the PCB to find it.
  2. Measure over the DC power socket over the pins that are not connect, if there is no beep its fine, if there is a beep then it could be that you added to much solder on one of the power socket connector pins and then the pin is connecting from the other side of the pcb to another pin (to fix this hold the PCB up above you and put you soldering iron onto the hole now let gravity make the solder go down aways from the connection).
  3. If all this is ok now you can connect the synth to your power supply (+ center, 7.5v DC to 12v DC) a TV and to a audio mixer to hear and see if it works. BE CAREFULL YOU DONT PUT THE SYNTH ON A CONDUCTIVE SURFACE WITHOUT THE BOTTOM PANNEL TO PREVENT SHORT CIRCUITS.
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  1. Take of the bolt nuts (dont remove the nuts of the other components).
  2. Put the bolts thru the bottom pannel.
  3. Put the small 4mm spacers on the bolts.
  4. Slide the assemebled synth onto the bolts of the bottom pannel.
  5. Mount the nuts onto the bolts.
  6. Now your done :-)