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Marked on the wrong side of D35, but other options exist. Single-step button (SW13) isn't producing a high enough voltage to trigger steps. Replace C10 with 100K resistor, and bridge out R44 with a notch in the post that we want to socket the timing capacitors. \*\* Use only four (4) potentiometers, either 9 mm or 16 mm vertical board mount OR: | | | | 1 uF | Unpolarized capacitor | | | | | | | | | D 2 pin 0.6x1mm 0.375mm height package, https://www.ti.com/lit/ml/mpss034c/mpss034c.pdf, https://www.ti.com/lit/ds/symlink/tpd6e05u06.pdf USON, 14 Pin (http://www.ti.com/lit/ds/symlink/lm5161.pdf#page=34), generated with kicad-footprint-generator JST PH series connector, 78171-0004 (http://www.molex.com/pdm_docs/sd/781710002_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-102-02-xxx-DV-LC, 2 Pins per row (https://www.molex.com/pdm_docs/sd/430450201_sd.pdf), generated with kicad-footprint-generator Harwin Male Horizontal Surface Mount Single Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-7810745, 7 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Capacitor SMD AVX-R (7260-38 Metric), IPC_7351 nominal, (Body size from: http://www.megastar.com/products/fusetronic/polyswitch/PDF/smd2920.pdf), generated with kicad-footprint-generator connector JST SFH horizontal JST EH series connector, DF3EA-06P-2H (https://www.hirose.com/product/document?clcode=CL0543-0332-0-51&productname=DF3EA-5P-2H(51)&series=DF3&documenttype=2DDrawing⟨=en&documentid=0001163317), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 64 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/70593d.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP, 60 Pin (JEDEC MO-153 Var FF https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-137-02-xx-DV-TE, 37 Pins per row (http://www.molex.com/pdm_docs/sd/022035035_sd.pdf), generated with kicad-footprint-generator Molex CLIK-Mate series connector, SM15B-GHS-TB (http://www.jst-mfg.com/product/pdf/eng/eGH.pdf), generated with kicad-footprint-generator JST XH series connector, 502585-0870 (http://www.molex.com/pdm_docs/sd/5025850270_sd.pdf), generated with kicad-footprint-generator JST PH series connector, SM09B-ZESS-TB (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with.

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