Quoted from jrrdw:4_A. ***DO NOT TAKE PICTURES OF THE CIRCUIT BOARD THE CAMERA FLASH CAN DAMAGE THE EPROM CHIPS!***
exactly what Shpwizard stated above. simply make sure than any eproms windows are covered up with tape (back in the day, we used to use the write-protect tabs for 5-1/4" floppy discs, but electrical or the foil tape that is sold for duct work works just as well