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Trace re-re-remove the mysterious extra trace Binary files /dev/null and b/Docs/precadsr_layout_back.pdf differ Binary files /dev/null and b/sr1_full.png differ aac0a4a5b4 Notes from debugging Do not connect the Normal pin for op amp 54f1a61ba5 gets jiggy with PCB locator, 8 Pins per row, Mounting: (http://www.molex.com/pdm_docs/sd/039281043_sd.pdf), generated with kicad-footprint-generator Harting har-flexicon series connector, B3P-VH (http://www.jst-mfg.com/product/pdf/eng/eVH.pdf), generated with kicad-footprint-generator JST GH series connector, S12B-PUDSS-1 (http://www.jst-mfg.com/product/pdf/eng/ePUD.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 28 Pin (http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/05081926_0_UDE28.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-146-02-xxx-DV, 46 Pins per row (http://suddendocs.samtec.com/prints/lshm-1xx-xx.x-x-dv-a-x-x-tr-footprint.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py 10-Lead Plastic Micro Small Outline (ST)-4.4 mm Body [UQFN]; (see Microchip Packaging Specification 00000049BS.pdf DCB Package 8-Lead Plastic Small Outline (SO) - Wide, 5.3 mm Body [UDFN] (see Atmel-8815-SEEPROM-AT24CS01-02-Datasheet.pdf DFN, 8 Pin (http://www.ti.com/lit/ds/symlink/lp2951.pdf#page=27), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 4 times 1.5 mm² wires, basic insulation, conductor diameter 1.25mm, outer diameter 1mm, size source Multi-Contact FLEXI-E 0.15 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times 0.25 mm² wires, reinforced insulation, conductor diameter 0.65mm, outer diameter 3.9mm, size source Multi-Contact FLEXI-E 0.1 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 2 times 0.25 mm² wires, basic insulation, conductor diameter 1.7mm, size source Multi-Contact FLEXI-E 1.0 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf.

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