C64 Pi1541-III Module

Pi1541-III Module

This is the main PCB and will hold most of the active components in the device, but note that it is designed to be used with Pi1541-III Module Panel and has one listed in the BOM. Note that the mentioned panel also has its own separate BOM, so keep that in mind while ordering components.

• 1> Build instructions
• 2> Schematic
• 3> BOM

1> Build instructions

Assembling this module is covered as part of the overall documentation, as linked below. Note that BOM is supplied per module, the one belonging to this module in particular is included as part of this document (click here to go there).

• Assembling one

2> Schematic

The supplied KiCad files should be sufficient as both a schematic and as a starting point for ordering PCBs (basically you could just zip the contents of the export folder and upload that on a fabrication site), the schematic is also available in PDF-format and this is what you'll need to print and work your way through this things don't work as expected after assembly.

3> BOM

Most parts should be easy to get a hold of from your favourite local electronic component shop, but given that I don't have access to such shops where I live so everything was based on whatever I could get cheapest from eBay/AliExpress (free shipping, but plan on waiting 3-4 weeks for delivery). Components in parenthesis can be considered optional for features beyond the more basic functionality, but where's the fun in that? You deserve the complete package.

1. There are multiple configurations of these being sold, this is usually sold with a blue PCB. When in doubt, compare the sale listing with the one shown in this image.
2. This is the resistor for the LEDs mounted on Pi1541-III Module Panel, the value need to be sized according to the type of LED being used. This value is a somewhat safe choice cheaper coloured LEDs, for anything blue or especially marked as being bright - then you need to calculate a proper value for these.
3. There are unfortunately counterfeit 7406-chips being circulated, the ones I've had the most success with has been marked 7406PC though a handful of SN7406 have also been found working. See troubleshooting for more information.
4. These are used in various places of the project, these are available in the form of kits usually advertised M3 nylon standoff kit which should contain most of what you'd need though you should check that they include them in sufficient quantity.
5. These are only needed when NOT installing bottom faceplate (Pi1541-III Faceplate (FB2))