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BackAvril 2015 11:21:18 UTC update=Tue 20 Apr 2021 10:22:18 AM EDT **Component Count:** 76 Docs/precadsr_layout_back.pdf Normal file Unescape Schematics/Unseen Servant/Unseen Servant.kicad_pro | 85 cd18ed43dc Added hard sync to schematic, laid out PCB with exploratory 8hp layout Add schematic, start on PCB Added hard sync input. - But could also go to same bus 2x Pushbutton switches, all 2pin: - all step switches (all go to same bus) - run/stop 2x Pushbutton switches, all 2pin: - reset Pots, 3-pin: - Glide attenuator (B10k) (join two left pins from below) - Clock In - ~27K to U3-8? No, transistors maybe activate? - Clock In Normal - 1k to U2-8 (AND NOT short to U2-10 Clock Rate - variable resist +6k between U2-8 and U2-9 Reset Sw - when pressed, short +12V and the code they affect. Such description must be on the thru-holes. C7 is a work based on SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W single output DC/DC, http://power.murata.com/data/power/ncl/kdc_cre1.pdf Isolated 1W single output DC/DC Murata MGJ2DxxxxxxSC, 19.5x9.8x12.5mm, 5.2kVDC Isolated, 1W, dual output, SIP package style, https://power.murata.com/data/power/ncl/kdc_mej1.pdf Abracon Miniature Ceramic Smd Crystal ABM3C http://www.abracon.com/Resonators/abm3c.pdf, 5.0x3.2mm^2 package SMD Crystal MicroCrystal CC1V-T1A series https://www.microcrystal.com/fileadmin/Media/Products/32kHz/Datasheet/CC1V-T1A.pdf, 8.0x3.7mm^2 package SMD Watch Crystal MicroCrystal CC5V-T1A series http://cdn-reichelt.de/documents/datenblatt/B400/CC5V-T1A.pdf, hand-soldering, 4.1x1.5mm^2 package SMD Crystal Oscillator Seiko Epson MC-506 http://media.digikey.com/pdf/Data%20Sheets/Epson%20PDFs/MA-505,506.pdf, 12.7x5.1mm^2 package SMD Crystal SERIES SMD2016/4 http://www.q-crystal.com/upload/5/2015552223166229.pdf, 2.0x1.6mm^2 package SMD Watch Crystal MicroCrystal CC8V-T1A/CM8V-T1A series http://www.microcrystal.com/images/_Product-Documentation/01_TF_ceramic_Packages/01_Datasheet/CC8V-T1A.pdf, hand-soldering, 2.0x1.2mm^2 package SMD Crystal Seiko Epson MC-406 https://support.epson.biz/td/api/doc_check.php?dl=brief_MC-306_en.pdf, hand-soldering, 9.6x4.1mm^2 package crystal Epson Toyocom TSX-3225 series https://support.epson.biz/td/api/doc_check.php?dl=brief_fa-238v_en.pdf, hand-soldering, 3.2x2.5mm^2 package Miniature Crystal Clock Oscillator TXCO Fordahl DFA S1-KHZ/LHZ, http://www.iqdfrequencyproducts.com/products/details/iqxo-70-11-30.pdf, 14.8x9.1mm^2 package Mminiature Crystal Clock Oscillator TG2520 series SMD inductor Ferrite Bead Array 4x0603, Taiyo Yuden NRF51822 Module Bluetooth RF transceiver THT style https://www.rfsolutions.co.uk/downloads/1456219226DS-ZETA.pdf RF transceiver THT style https://www.rfsolutions.co.uk/downloads/1456219226DS-ZETA.pdf RF transceiver THT style https://www.rfsolutions.co.uk/downloads/1456219226DS-ZETA.pdf Laird Technologies BMI-S-106 Shielding Cabinet THT 51x51mm WE-SHC Shielding Cabinet SMD 30x30mm WE-SHC Shielding Cabinet One Piece SMD 29.36x18.50mm (https://assets.lairdtech.com/home/brandworld/files/Board%20Level%20Shields%20Catalog%20Download.pdf Laird Technologies 97-2002 EZ PEEL Shielding Cabinet SMD 30x30mm WE-SHC Shielding Cabinet Two Piece SMD 36.83x33.68mm (https://assets.lairdtech.com/home/brandworld/files/Board%20Level%20Shields%20Catalog%20Download.pdf Laird Technologies BMI-S-210-F Shielding Cabinet THT 61x61mm Signal Relay, 10x6mm, 2 Form C, Gull Wings, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Data+Sheet%7F108-98001%7FZ.1%7Fpdf%7FEnglish%7FENG_DS_108-98001_Z.1.pdf TE IM-Series Relay DPDR Pitch 3.2mm AXICOM IM-Series Relay.
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