Could some people give me their idea of the steps to take when repairing a Digital system? Let's assume I don't have the schematic or other paper on these boards. They are arcade game boards. On this one particluar board I am working on it comes up with a work ram error. I checked all of the RAMS and they check OK. What is the next step? Maybe something with the address line? It is a system running on a 68000. Also if I am checking pins on different chips with my scope what are the levels that would point to a bad chip or node. Anything below .5 volts and above 4 volts? Still confused on this one, Thanks Uriah
- posted
17 years ago