Hello everyone, I've just acquired a BZ upright cabinet in fairly good condition, but it wasn't working.
I fixed some issues, like broken IDE connector pin solder joints on the deflection board, and some failing EPROMs that I reburned using 2716 chips.
Now I can enter test mode—I see the pattern and hear a blip. If I press any button, I hear another blip, but when I exit test mode, nothing appears on the screen.
I've checked all the solder joints on the pins connecting both boards, and they look fine.
Do you guys have any tips on where I should continue testing from here?
Thanks in advance!