TRS-80 Diagnostic ROM for Model I trs-80-model-iii first cut the exposed traces

first cut the exposed traces on the top side of the board which short out resistors R1 through R4 (which are not normally installed)

Bank of shorted resistor footprints allows easy drive select number remapping

AT29BV040A

Make sure surface is properly primed

so a smaller array might also work

TRS-80 Diagnostic ROM for Model I trs-80-model-iii first cut the exposed tracesTroubleshoot your TRS 80 Model I with ease using this pre programmed diagnostic ROM! This 2716 EPROM chip is pre burned with the helpful "TRS 80 Diagnostic ROM" created by Github user MisterBlack1. Designed for installation in the leftmost ROM of your Model I, it provides enhanced diagnostic capabilities for efficient troubleshooting. (For complete details and installation instructions, please visit the Github repository.) Simplify troubleshooting and