avramce
Kabuki Klasher
- Joined
- Sep 24, 2019
- Posts
- 125
I got a 2-slot board with heavy corrosion damage around the battery circuit:
https://www.mvs-scans.com/images/5/5d/Mv2-01_set1_top.jpg
At this point, I probed all the C-lines on the ZMC2 chip, restored all the connections between the C0 and the LSPC-A0, but I'm getting gameplay with sound and no characters on screen:
For LSPC-A0, restored connections for EVEN, H and LOAD
For PRO-C0, restored connections for GAD0 and GAD1
Whats weird is the static sprites on the screen are loading fine, but anything that I would assume comes from the C-Roms is not displaying on screen. I ran NeoDiag on the board, and supposedly, all tests passed.
https://www.mvs-scans.com/images/5/5d/Mv2-01_set1_top.jpg
At this point, I probed all the C-lines on the ZMC2 chip, restored all the connections between the C0 and the LSPC-A0, but I'm getting gameplay with sound and no characters on screen:
For LSPC-A0, restored connections for EVEN, H and LOAD
For PRO-C0, restored connections for GAD0 and GAD1
Whats weird is the static sprites on the screen are loading fine, but anything that I would assume comes from the C-Roms is not displaying on screen. I ran NeoDiag on the board, and supposedly, all tests passed.