Commodore 64 Diagnostic Rev. 586220 Harness


1 in stock



Design by Sven Petersen.

The Diagnostic Rev. 586220 is a widely accepted test tool for the Commodore C64. It tests the RAM, ROMs and the peripheral chips (VIC, SID, CIA). To test all interfaces, a feedback is required. This is provided by this harness.

GitHub project page.

SMD version with professionally SMT assembled boards. 3D printed cases. Serial port dongle is also included. I forgot it from the photo.

Cartridge with Diagnostic 586220 software is available here.

Additional information

Weight 180 g