DiagROM (Amiga 500)

if you swap the kickstart rom for a diagrom chip you can run the diagnostics programs insert the diagnostics rom into the bios rom slot when first turned on you should have a dark grey, then flashing green, then horizontal multicolored lines, followed by a brief light green then white screen before the final diagnostics screen appears minimum boot (amiga 500) in order for the diagrom to be able to control the screen, it needs to have the following chips working and traces good 68k agnus (to see video out, optionally connect to uart output) gary data path logic ics good clocks want to buy pre made and upgraded amiga computers? visit retrosix co uk