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2 layers15.7 × 20.8 mmS MIX replacement, the printed circuit board in 3D

Replacement PCB for broken S-MIX ICs

Size
15.7 × 20.8 mm
Copper layers
2
Thickness
1.6 mm
Parts
36
Nets
20
Pads
68
Tracks, vias
190, 0
Pours
1
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
20 Aug 2020
Updated
2 Jan 2022

Overview

S MIX replacement is an open-source printed circuit board by ManCloud, from the ManCloud/S-MIX-replacement repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 15.7 × 20.8 mm with 36 parts on 20 nets, routed with 190 tracks and 0 vias.

It is built around the LM358D and BC846. Its parts include 16 resistors, 14 connectors, 1 capacitor and 1 IC.

Main components

2

README

README.md

S-MIX-replacement

Replacement PCB for broken SNES S-MIX ICs and N64 AMP-NUS ICs

Contributors

  • borti4938
    • he had the original idea of this board and helped a lot with the redesign.

Changelog

v20210526

  • Moved to KiCad
  • changed overall layout
  • optimized to use single-layer

Nice-to-know

During my investigations I found out, that the S-MIX of the SNES and the AMP-NUS of the N64 are functional identical. I even swapped the chips between consoles and everything worked like a charm.

Comparison

Parts

36
QtyValueFootprintReferences
14 TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mmJ1, J2, J3, J4, J5, J7, J8, J9, J10, J11, J12, J13, J14, J15
610kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR3, R4, R5, R6, R7, R8
41kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR9, R10, R15, R16
4BC846Package_TO_SOT_SMD:SOT-23T1, T2, T3, T4
21k8Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR13, R14
222kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR11, R12
233kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR1, R2
110uCapacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolderC1
1LM358DPackage_SO:SOIC-8_3.9x4.9mm_P1.27mmIC1

Questions

How big is the S MIX replacement PCB?

It measures 15.7 × 20.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the S MIX replacement use?

36 parts, built around the LM358D and BC846. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the S MIX replacement KiCad files?

From the ManCloud/S-MIX-replacement repository on GitHub, at the commit this page was made from: the board is S-Mix-Replacement.kicad_pcb and its schematic S-Mix-Replacement.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the S MIX replacement design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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