AmigaTestKit and DiagROM are amazing bits of kit for Amiga repairers. In this guide we show you how to take the loopback port testers they both use, and add voltage readouts to them.
John Hertell’s DiagROM is one of the most useful tools for anyone involved in Amiga repair. But did you know it works on the CD32 too? Here we find the hidden serial port, and show you how to make a cable.