05-24-2020, 12:39 AM
Ah... I thought it was a 85C30 (not a C80). I had not seen that chip before! Typically every Mac I have ever worked with uses a separate 53C80 and 85C30 chips.
Yeah, that is going to be tough to get off the board without the proper equipment. Did you make a new 8 pin serial cable for the loop back test or use the same cable you had? Maybe your cable is bad?
Yeah, that is going to be tough to get off the board without the proper equipment. Did you make a new 8 pin serial cable for the loop back test or use the same cable you had? Maybe your cable is bad?