Repairing Two Commodore 64’s with Bad ROMs and an Unexpected Extra Fault!

Before I get to the silver labels I need to finish up a few more standard, common or garden C64’s. Here are a couple from a previous triage episode which presented with faulty ROM chips. One has a bad BASIC ROM and the other has a bad Kernal ROM. But one of them was also hiding a sneaky fault elsewhere which I discover after repairing the ROM’s! FUN!