Hi, I am trying to fix a namco system 1 board. Currently if I put it in test mode it loads to a black screen with 3 clicks from the speaker. I want to check all the roms. I can read some of the roms in my reader but some I can’t identify. They have the following number on them:
MN231001NZZ (used at position PRG-6 for example)
thanks
MN231001NZZ (used at position PRG-6 for example)
thanks