Working on the PCB on the bench, and the game looks like the sync is off and sometimes I can see sets of zeros. However, the game is playing blind. I know it's not the monitor, because I tested it in another and getting the same problem.
I removed the AUX card and replaced the Z80.
Any suggestions to start troubleshooting this?
Thanks again,
Theron
I removed the AUX card and replaced the Z80.
Any suggestions to start troubleshooting this?
Thanks again,
Theron

