ZIFs are on our test board for our breadboards kit schematics – they are used (as you have mentioned) to insert/remove chips for testing. And fast check of ROM

ZIFs are on our test board for our breadboards kit schematics – they are used (as you have mentioned) to insert/remove chips for testing. And fast check of ROM firmware for it's updates. So we've built a test PCB board to test fast our chips and schematics.