Summary of Contents for Bastl Instruments KASTLE v1.0
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29. 10. 2016 KASTLE v1.0 - Assembly Guide bastl-instruments.com INTRODUCTION Welcome to the assembly guide for the Kastle kit - mini modular synthesizer. It is suitable for beginners. It is good to have basic soldering skills and to be able to identify electronic components before starting this kit.
BILL OF MATERIALS value part R-EU_0204/5 100k R-EU_0204/5 470nF ceramic capacitor Zener diode 5V1 DIODE-D-7.5 jack TRS 3.5mm audio connector B100k POT LIN difuse green 3mm SPDT TOGGLE SWITCH 2PP 1x2pin female pinheader 1x3pin female pinheader 8 pin DIL DIL socket - in foam attiny 85 pre-programmed VCO IC in foam attiny 85 pre-programmed LFO...
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BEFORE STARTING THE KIT... Prepare the following tools: ● Soldering iron (15-20W) ● Flush cutters ● n2. hex screwdriver or allen key (enclosed with kit) ● Needlenose pliers ● Protective eyewear We suggest to work in a clean and a well lit and ventilated environment to avoid accidents or losing any of the small components.
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Insert the I C sockets (2x; 8 pin DIL). Just be aware of the r ight direction of sockets - there is a notch on the sockets that has to match with the ring on the PCB. Add the c eramic capacitors now. There are just four of them of the same value - 470nF (they are marked "474"...
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Now let's do the f emale pinheaders : 2 pin ones (6x) and 3 pin ones (8x). It may take a little patience to insert them well. Be sure to solder them straight. Go for the s witch now. This may be one of the parts that is a little tricky to solder. Here is t he SOLDERING TIP...
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Next move to soldering of p otentiometers (B100k). Proceed the same way as with the switch: install potentiometers in straight, solder just one leg, check the position and solder the rest if there is no problem. Solder the green L ED - be sure to insert the longer lead into the plus (+) hole. Push the LED down to the PCB.
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You will need the cutted leads from resistors now. Turn the PCB around and give a little bit iron into the remaining " H OLD ” , " B AT_- ” and " B AT_+ ” holes. Re-heat them and insert the leads using needlenose pliers.
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Take your time now and relax for a while. Then do the last d ouble check of all soldered joints at this point . After next steps it would be M UCH HARDER to do any repairment. Don’t forget to place the I Cs into the sockets (2x; Attiny85). There is a signed n otch on each IC that has to match with the ...
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Bend the potentiometers legs on the edge of the PCB outwards (see the photo). Now place the b attery holder to the PCB. Watch out for the o rientation !
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Mount the holder with s pacer and the longer s crew . It may be a little tricky. Don’t tighten the screw too much because you are dealing with plastic material, you know. And now the last soldering challenge! You have to connect the leads with the lugs. D o not let the lug heat too much! (it would break the connection of the coil and the lug) Use just the tip of your soldering iron.
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Now you can complete the Kastle with the plastic case parts. Start with the s ide parts . Finish it with the top cover , mounting the n ut (to the switch) and s crew . Again, please be gentle, you should not use too much power to put the parts together.
Here it is, your Kastle is finally completely alive! Congratulations! TROUBLESHOOTING Check the F .A.Q. on our website first. If you are still in trouble the best thing is to take a nap! Especially late at night! Then you can can send the detailed description of the problem with enclosed high-resolution photos on ...
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