JLL

It was absolutely invisible to the naked eye (and thanks a million to my Pixel 7 phone with a 8x digital zoom) but I could see there was...

Component video was working with the OSSC yes (board B still outputs component video just fine to the OSSC as well) I haven't had time...

I think I've found the culprit: for some reason, I have continuity between SDMRD and SDROM. On board A (which had sound, albeit broken)...

Damn ok, is there anything else to try ? I really don't want to desolder two of those chips, without any guarantee the transplant would...

So I put the board A aside for the time being and got a logic probe (Elenco LP-560) to test board B. If I understand this correctly...

Pics above are from board A which also has the hot chip yeah. Is there any way to make sure ? Honestly, nothing eventful happened that...

I did some comparison tests between board A and B and I noticed that the NEO-GRZ chip on board A heats up very quickly, to the point I...

Here are some pictures of board A as it came to me (and it was working) Back-side, around the center, a trace seems to have been cut...

Actually board A has a custom chip with unibios 3.3 on it (just checked, I didn't realize the chip was different) Board B still has the...

Both boards still have their original bios chip soldered on, although board A seems to have had some modifications done to it (I see two...

Hello and happy new year :) I need help with two consolized MVS MV1C boards (which I'll call A and B). They come with one supergun...