LushOne SynthBuild
Instructions
Page 1: ...LushOne Synth Build Instructions ...
Page 2: ...u should be able to solder ICs without destroying them Accuracy and neatness is more important than speed Get it working first time These instructions will guide you but I assume you are familiar with basic techniques and equipment The instructions should be suitable for someone with a skill level appropriate to the project All components except batteries are mounted on the circuit board no slow f...
Page 3: ...Build order Build in any order you like but I suggest Patch sockets ICs and IC sockets Resistors capacitors Transistor diodes crystal LEDs Switches and connectors Battery leads Variable resistors ...
Page 4: ...Front The following components are mounted from the front Patch sockets LEDs Power and push switches ICSP programming header Variable resistors ...
Page 5: ...Back The following components are mounted from the back Everything not on the front Except the batteries ...
Page 6: ...lver patch sockets fit from front of board Fit in the large labelled circles Not the four mounting holes in the extreme corners Solder round rim on back Suggest you fit first so you can make them sit nicely flush with the board ...
Page 7: ...ilk screen Pin 1 also has a square pad The voltage regulator has the same case as the two transistors check the labels Orientation is shown on silk screen Designation Type Comment IC401 ATMEGA88 28 Pin U201 LM324 or LM2902N 14 Pin U202 LM13700 16 Pin U301 LM324 or LM2902N 14 Pin U401 SFH618 4 Pin See comments on next page U402 78L05 3 Pin transistor style case U403 74HC00 14 Pin ...
Page 8: ...very hard to see Use this guide to help find pin 1 There are several different packages depending on the source Other markings eg a notch at the pin 1 end may also be used Small dent in plastic indicates pin 1 Whiteish dot next to text indicates pin 1 ...
Page 9: ...47k R215 10k R216 10k R217 2 2k R218 10k R219 10k R220 10k R221 10k R222 8 2k R223 220R R224 220R R225 220R R226 220R R227 2 2k R228 10k R229 2 2k R301 10k R302 10k R303 10k R304 10k R305 1k R306 10k R307 10k R308 10k R309 10k R310 1k R401 220R R402 1k R403 220R R404 1k R405 220R R406 220R R407 10k R408 220R R409 470R R410 220R R411 10k Value Colours 220R Red Red Brown Gold 470R Yellow Purple Brow...
Page 10: ...Tricky designators R204 R203 R211 R206 The middle of the board is crowded This is a guide to some of the components where the label might be ambiguous R208 R205 D201 R217 R227 R222 ...
Page 11: ...C402 100u Electrolytic C403 100n Ceramic C404 100n Ceramic C405 10u Electrolytic C406 22p Ceramic C407 22p Ceramic C408 100u Electrolytic C409 100n Ceramic All capacitors are mounted from the back Capacitors are marked with one of the symbols shown above For electrolytic capacitors the lead longer lead is labelled and indicated by the square pad Some capacitors like C303 may come with either wide ...
Page 12: ...quare symbol The diode s stripe should be towards the printed square square pad All diodes are mounted vertically like the resistors Small line coming out of square on silk screen shows direction of the lead you expect a diode to have its arrow pointing toward the painted band sometimes called the cathode by the snobbish Bob Pease D201 1N4148 D202 1N4148 D203 1N4148 D204 1N4148 D205 1N4148 D206 1N...
Page 13: ...LEDs All LEDs are mounted from the front Short lead goes towards the square pad Depending on your case design you might want to lift the LEDs up above the board ...
Page 14: ...unted from the front Four tall tactile buttons mount on the four points under the LEDs These only fit properly in one orientation If you are having trouble fitting try turning 90 Sliding power switch fits on the left of the board ...
Page 15: ...ob on one pad Melt solder and push socket in to place using locating holes as a guide Make sure the input is facing the edge of the board Check socket is sitting nicely Solder up the other pads The 6 pin ISCP sorry about the typo should be ICSP header is mounted from the front Solder in where indicated If you don t plan to change the firmware you can omit this part Surface mount pads for jack sock...
Page 16: ...in the photos Leads terminate in the box labelled Vin next to the power switch Connectors are see photo 9V 1st connector red 0V 1st connector black 0V 2nd connector red 9V 2nd connector black Remember for a split rail power supply the ground is negative of one battery and the positive of the other ...
Page 17: ...able resistors Five variable resistors are mounted where shown on front of board You may need to bend the pins slightly to make them sit properly RV201 10k RV202 10k RV203 10k RV204 10k RV401 10k RV402 10k ...
Page 18: ...ch leads If you have your patch leads as separate parts Cut the patch wire in to three equal lengths Strip a short amount of insulation from each end of the wire lengths Connect a 2mm stacking patch connector to each end as shown in this video http youtu be WA6blg6HNP0 ...
Page 19: ...e socket if you haven t done so already Time to check No parts left over All parts particularly ICs in the right way No bad solder joints or unsoldered joints Battery connectors on correctly very important No solder bridges or other problems Good luck See the training for how to use the LushOne ...
Page 20: ...oaded If you have an AVR serial programmer you can update the firmware using the ICSP header on some old boards labelled ISCP blush This connector does not force correct orientation Pin 1 is labelled Check and double check orientation before connecting the programmer ...
Page 21: ...R216 R218 R219 R220 R221 R228 R301 R302 R303 R304 R306 R307 R308 R309 R407 R411 12k 1R211 47k 3R207 R213 R214 68k 1R203 470k 1R201 10M 1R210 Capacitors 22p 2C406 C407 270p 3C205 C304 C308 680p 3C204 C303 C307 820p 3C202 C301 C305 1n 1C206 2 2n 5C203 C209 C210 C302 C306 100n 10C211 C212 C213 C214 C309 C310 C401 C403 C404 C409 1u 1C201 10u 2C208 C405 47u 1C207 100u 2C402 C408 You can use this chart ...
