Weston Precision Audio AD110 Manual Download Page 16 | Manualshive

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SCHEMATICS (PCB-C)

© 2020 Weston Precision Audio

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Summary of Contents for AD110

Page 1: ...2020 Weston Precision Audio 1 AD110 Analog Drums DIY Eurorack Module Weston Precision Audio Designed In Portland Oregon Revision 11 June 25 2022...

Page 2: ...e the range of sounds available including tone control for the decaying portion of the kick drum pitch and resonance pitch for the resonant portion of the snare drum decay of the snare wires noise par...

Page 3: ...ly found in various analog drum machines of the time They are formed via simple CMOS inverter oscillators in U101 and U105 and are approximately 305Hz 44Hz 794Hz and 1136Hz These 4 signals are mixed t...

Page 4: ...tip Flux core solder No clean solder for soldering pots after cleaning Phillips head screw driver Small wire clipping pliers Recommended Digital volt meter Oscilloscope Spanner tool for knurled jack...

Page 5: ...NBMF 5ISFBEFE FY 4UBOEPGG NN POH Y Y 1BO FBE 4DSFX Y OVSMFE 4JMWFS FOUFS SFZ 4NBMM FBS MFDUSPOJDT 1 3 9 OVSMFE 4JMWFS FOUFS FMMPX 4NBMM FBS MFDUSPOJDT 1 8 9 OVSMFE 4JMWFS FOUFS MBDL 4NBMM FBS MFDUSPOJ...

Page 6: ...1 L102 2 Ferrite Ferrite bead axial Q107 Q110 Q102 3 BC559B Transistor BJT TO 92 Inline package Q109 Q108 Q106 Q111 Q101 Q103 Q104 Q105 8 BC549B Transistor BJT TO 92 Inline package R101 R127 R158 3 82...

Page 7: ...nterconnect 2 2 54mm Pin Header 6 Position Install on back side of board JP215 1 B A Interconnect 3 2 54mm Pin Header 12 Position Install on back side of board Q201 Q203 Q206 3 BC559B Transistor BJT T...

Page 8: ...f PCB B fi rst release the footprint for C221 looks like a disc type but you should install the 1uF electrolytic here as shown with the negative stripe leg installed to the ground hole closest to Q206...

Page 9: ...of board JP305 1 C B Interconnect 5 2 54mm Pin Header 12 Position Install on back side of board Q301 Q302 Q305 Q306 Q303 Q307 Q304 7 BC547C Transistor BJT TO 92 Inline package Q308 1 BC559B Transisto...

Page 10: ...ace the LEDs into their holes and mount PCB C to the panel with just 1 pot washer and nut With the panel facing down wiggle the LEDs into their holes on the panel until you can feel them touch the tap...

Page 11: ...ver while you listen to the output from step 1 Turn the trim pot TP201 the only trump pot until you minimize any thump sound from the accent bleeding through You may have to turn your speakers up a bi...

Page 12: ...REF Finished Unit 2020 Weston Precision Audio 12...

Page 13: ...REF PCB Pics Finished 2020 Weston Precision Audio 13...

Page 14: ...3 Q103 BC549B D101 1SS133M R119 10k GNDD GNDA R105 100k C112 0 47u R118 220R 12V 1 2 3 Q102 BC559B 12V GNDD R111 33k R115 100k C104 470p V 11 V 4 U107E TL074 12 13 14 U107D TL074 10 8 9 U107C TL074 GN...

Page 15: ...k 12V R252 18k C216 22n GNDA R211 33k GNDA GNDA GNDA R247 1k C202 1 2n Film C205 1 2n Film R256 1k V 11 V 6 U204E LM13700 V 7 8 U204D LM13700 1 DIODE_BIAS 2 3 4 5 U204C LM13700 V 10 9 U204B LM13700 R2...

Page 16: ...D310 4148 D312 4148 GND 4 RV302B A1M Kick Decay GND 4 RV306B 10k Mix Bal 1 1 2 2 3 3 RV309A A1M Clap Flam 1 1 2 2 3 3 RV301A B1M Cym Decay 1 1 2 2 3 3 RV303A 100k Snare Decay 1 1 2 2 3 3 RV302A 100k K...

Page 17: ...SILKSCREEN PCB A 2020 Weston Precision Audio 17...

Page 18: ...SILKSCREEN PCB B 2020 Weston Precision Audio 18...

Page 19: ...SILKSCREEN PCB C 2020 Weston Precision Audio 19...

Page 20: ...f C build table 08 4 7k Rs on PCB C were listed wrong as 2k on build table BOM was correct 07 Add missing diodes to PCB B build table and note about D204 D205 06 Correct Small Bear knob PNs 05 Change...

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