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last update: 19. 7. 2018
POPCORN v1.1 - Assembly Guide
bastl-instruments.com
INTRODUCTION
This guide is for building Popcorn module from Bastl Instruments. It is good to have basic soldering
skills and to be able to identify electronic components before starting this kit. However if you have
never soldered before, check out this
t utorial first
.
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The Popcorn kit consists of two boards. All the parts comes in three bags separated for Top board,
Bottom board and Assembly parts. See Bill of Materials (BOM) for detailed list. We even included
some of the best quality solder to help you solder everything faster and better.
http://www.instructables.com/id/How-to-solder/
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Table of Contents
Related Manuals for Bastl Instruments POPCORN v1.1
Summary of Contents for Bastl Instruments POPCORN v1.1
- Page 1 INTRODUCTION This guide is for building Popcorn module from Bastl Instruments. It is good to have basic soldering skills and to be able to identify electronic components before starting this kit. However if you have never soldered before, check out this ...
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Page 2: Bill Of Materials
BILL OF MATERIALS POPCORN v1.1 TOP BOARD value part 220R R-EU_0204/5 R-EU_0204/5 17mm long small button PJ-301BMB jack connector green LED 3 mm bipolar R/G LED 3 mm B100K 25mm linear potentiometer B100K 25mm linear potentiometer - central detent 2x4 pin... - Page 3 R-EU_0204/5 100k R-EU_0204/5 R-EU_0204/5 R-EU_0204/5 330k R-EU_0204/5 R-EU_0207/5 1N4007 DIODE-D-7.5 100nF ceramic capacitor 10uF electrolytic capacitor 2N3904 transistor 7805 voltage regulator L79L05 voltage regulator 16MHz resonator 100mA fuse ATMEGA328-PU-ND 74HC595 IC in foam CD4051BE IC in foam MCP6002 IC in foam MCP4921 IC in foam TL072...
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Page 4: Bottom Board
BEFORE STARTING THE KIT... Before starting this kit, prepare the following tools: ● Soldering iron ● Multi-meter ● Flush cutters ● Smaller pliers ● n2. hex screwdriver or allen key (enclosed with kit) ● Phillips screwdriver ● Wrench No. 8 ●... - Page 7 DIODES Solder also the d iodes ( 1 N4007 - 2x). Be careful, d iodes are polarized ! Make sure that the marking ring on the diode body matches the marking on the circuit board . Check the photo below.
- Page 8 MALE HEADERS Solder the m ale pinheaders now (1x 6 pins, 1x 8 pins and 3x double 5x pins). Be careful to solder them straight. You may first solder just one of the pin , take the board in your hand and re-heat that pin while pressing down on the header to align it (be careful, you don’t want to touch the pin you are heating up).
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Page 9: Voltage Regulator
CAPACITORS Let’s do the 1 00nF c eramic c apacitors n ow. There are s eventeen of them (marked “104” on itself). VOLTAGE REGULATOR Proceed to the 7 805 voltage regulator. Bend its legs close to the body first. Insert it then to the spot and make it lay on the PCB. -
Page 10: Electrolytic Capacitors
TRANSISTORS Add t hree t ransistors ( 2 N3904 ) . Just be aware of the right o rientation a gain! ELECTROLYTIC CAPACITORS Let’s do the e lectrolytic c aps ( 4x 1 0μF ) . These ones a re polarized! T here is a plus (+) sign on the PCB that has to match the longer lead of the electrolytic capacitor (actually the minus (–) side is also marked on the body of the capacitor with a white strip). - Page 11 FUSES Solder the t wo f uses right on the rectangular spot signed “PTC”. These parts look quite similar to capacitors so don’t let it confuse you. RESONATOR Insert also the r esonator (the orange component with 3 leads). This part is not polarized so you can insert it in any direction.
- Page 12 INSERTING ICs Next don’t forget to place I Cs into the sockets (1x T L072 , 1x M CP4921 , 1x M CP6002 , 3x C D4051BE , 4x 7 4HC595 , 1x A tmega ) . T here is a notch on each IC that should match with the notch on the socket (for TL072 is relevant the dot on it).
- Page 13 For now you are finally done with the bottom board. Make the last check that all parts are on the right place and everything is properly soldered.
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Page 14: Top Board
TOP BOARD RESISTORS Let's move to the top PCB now. Again, start with the r esistors : 220R (6x), 1 k (9x) - Page 15 PINHEADERS Now it’s time to connect the boards with pinheaders. 1) Mount the spacer with the screw to the bottom board first. 2) Insert male headers into the female ones. 3) Put the headers on the bottom board facing the female ones down. 4) Place the top board on and secure it with the other spacer.
- Page 17 JACKS, POTENTIOMETERS, BUTTONS & LEDS You are almost done. Let's do the rest of the components by just putting them in first ( n o soldering yet! It starts at point 8! ) : 1) Unmount the top board. 2) Insert green L EDs (9x) - w atch out f or orientation ! (the longer lead has to go into the plus (+) hole signed on PCB).
- Page 20 CLEANING (OPTIONAL) After the soldering is done you might want to c lean your PCB. You can use e.g. isopropyl alcohol. Put some of the liquid all over the PCB using the brush (be aware to not let it flow into the pots), let it act for a while and sweep it off.
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Page 21: Final Assembly
FINAL ASSEMBLY Congratulations! You have made it through, your Popcorn is ready to work! If you want to calibrate it first, follow the guide h ere . Before you connect anything, make sure that your system is disconnected from power. Also double check the polarity of the ribbon cable, the red cable should match the -12V rail both on the module and on the bus board! TROUBLESHOOTING If you have any issues with the module, please check the ...