I'm not 100% sure if I'm posting this in the correct place but the issue I'm having is so specific & does have to do with how the NES is programmed I was hoping someone here would have the answer.
So I have this toploader I've been working on for awhile now. Pins needed a good cleaning & after that I would get an image but the background layer of sprites would be corruptted as you can see fro the pics I've attached. FOr example in Super Mario Bros Mario, Goombas & Mushrooms are fine but the actual background & bricks are not. I replaced the PPU, no change, the CPU, no change, the VRAM, no change, then I replaced the WRAM & the way the sprites were corrupted has changed. Now I'm using a roached NES board that I cannot rember what the original issue was. So maybe the WRAM in this was bad as well.
What I'm really asking, is the issue I'm having related to the WRAM or should I be lookign else where?
So I have this toploader I've been working on for awhile now. Pins needed a good cleaning & after that I would get an image but the background layer of sprites would be corruptted as you can see fro the pics I've attached. FOr example in Super Mario Bros Mario, Goombas & Mushrooms are fine but the actual background & bricks are not. I replaced the PPU, no change, the CPU, no change, the VRAM, no change, then I replaced the WRAM & the way the sprites were corrupted has changed. Now I'm using a roached NES board that I cannot rember what the original issue was. So maybe the WRAM in this was bad as well.
What I'm really asking, is the issue I'm having related to the WRAM or should I be lookign else where?