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Std edition IDC Header Tester Two Board version

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License: CERN Open Hardware License

Published Time: 2020-04-10 03:31:51
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Eurorack modular synthesizers use IDC connectors to distribute power. They are 16 pin 2x8 male headers, or 10 pin 2x5. In each case, there are two columns of pins, #1 on the right, with 3, 5, 7, ... above it, and 2, 4, 6, 8, ... on the left. Pins 1 & 2 are shorted together to supply -12V; pins 3, 4, 5, 6, 7, 8 supply GND; pins 9 & 10 provide +12V. Some companies only use these 10 connectors. On a 16 pin version, pins 11 & 12 provide +5V, and the remainder are used for a control voltage and a gate. The +5V can be useful, but the CV and gate not so much. Female connectors are pressed on to ribbon cable to mate with the male headers. I wanted a way to test cables and power distribution bars, to ensure the correct wires are connected, and no unintended shorts have occurred.
Design Drawing
schematic diagram
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ID Name Designator Footprint Quantity BOM_Supplier BOM_Supplier Part BOM_Manufacturer BOM_Manufacturer Part
1 SK12D07VG4 SW2 SW-TH_SK12D07VG4 1 LCSC C393937 SHOU HAN SK12D07VG4
2 220R-2*10P H=8.5MM Ytype Gold-plated black H4,H3 HDR-TH_20P-P2.54-H-R2-C10-S2.54-W10.2 2 LCSC C124406 Ckmtw 220R-2*10P H=8.5MM Ytype Gold-plated black
3 HDR-IDC-2.54-2X8P P2,P3,P1 IDC-TH_16P-P2.54_C3406 3 LCSC C3406 BOOMELE IDC Box 2.54mm 16P Straight
4 620 R13,R10,R1,R23,R22,R21,R20,R19,R18,R16,R15,R2,R3,R4,R5,R6,R7,R8,R9,R14,R11,R12 RES-TH_BD1.7-L3.5-P7.50-D0.5 22 LCSC C433469 TyoHM RN 1/8W 620R F T/B A1
5 5.1K R24 RES-TH_BD1.7-L3.5-P7.50-D0.5 1 LCSC C433469 TyoHM RN 1/8W 620R F T/B A1
6 1K R17 RES-TH_BD1.7-L3.5-P7.50-D0.5 1 LCSC C433469 TyoHM RN 1/8W 620R F T/B A1
7 1uF C5 CAP-TH_BD5.0-P2.00-D0.8-FD 1 LCSC C78759 ValuePro electrolytic capacitor 10UF 50V high frequency
8 1TS005A-2300-5001 SW1 SW-TH_4P-L6.0-W6.0-P4.50-LS6.5 1 LCSC C319405 HYP 1TS005A-2300-5001
9 264-10SYGD/S530-E2-L LED12,LED16,LED15,LED3,LED2,LED19,LED14,LED20,LED13,LED21,LED4,LED22,LED11,LED23,LED10,LED1,LED9,LED8,LED7,LED6,LED18,LED5 LED-TH_BD3.2-P2.54-FD 22 LCSC C264308 Everlight Elec 264-10SYGD/S530-E2-L
10 100nF C7,C9,C6,C8,C4 CAP-TH_L6.0-W6.0-P2.54-D1.0 5 LCSC C353912 Dersonic CC1H104ZA1PD3F5O3002
11 CD4520BE U2 DIP-16_L20.0-W6.4-P2.54-LS7.6-BL 1 LCSC C5336 TI CD4520BE
12 910K RC1 RES-TH_BD2.2-L6.5-P10.50-D0.6 1 LCSC C65457 Uniroyal Elec MFR0W4F9103A50
13 CD4069UBE U3 DIP-14_L19.2-W6.6-P2.54-LS10.9-BL 1 LCSC C5204 TI CD4069UBE
14 10uF C1,C2 CAP-TH_BD5.0-P2.00-D0.8-FD 2 LCSC C43799 ValuePro 10uF 16V 5*11
15 NE555N U1 DIP-8_L9.8-W6.6-P2.54-LS7.6-BL 1 LCSC C398063 HGSEMI NE555N
16 MTP125-1210S1 U4,U5 HDR-TH_20P-P2.54-V-R2-C10-S2.54 2 LCSC C358699 MINTRON MTP125-1210S1
17 CD4051BE U7,U8 DIP-16_L20.0-W6.4-P2.54-LS7.6-BL 2 LCSC C5200 TI CD4051BE
18 10nF C3 CAP-TH_L5.0-W5.0-P2.54-D1.0 1 LCSC C377844 Dersonic CC1H103ZA1FD3F4D1001
19 91K RC2 RES-TH_BD1.9-L3.3-P7.30-D0.5 1 LCSC C119224 CCO MF1/8W-91KΩ±1% T52


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