Hello,
I'm trying to repair a MV1ACH board (is it a chinese version?) board giving me a Color RAM error on boot.
I've exchanged the 2 Palette RAM chips with a donor board, no difference.
I've exchanged the Neo-Go buffer IC leading upto the Palette RAMs, no difference.
Do you specialists have any tips of what else could be broken ? I'm out of clues.
Did anyone of you find some digital schematics of the NeoGeo MVS boards, currently I only have some fuzzy scanned PDFs.
It would make debugging the NeoGeo so much easier having a digital schematic displayed on a UHD LCD Monitor.
Thanks, Arno
I'm trying to repair a MV1ACH board (is it a chinese version?) board giving me a Color RAM error on boot.
I've exchanged the 2 Palette RAM chips with a donor board, no difference.
I've exchanged the Neo-Go buffer IC leading upto the Palette RAMs, no difference.
Do you specialists have any tips of what else could be broken ? I'm out of clues.
Did anyone of you find some digital schematics of the NeoGeo MVS boards, currently I only have some fuzzy scanned PDFs.
It would make debugging the NeoGeo so much easier having a digital schematic displayed on a UHD LCD Monitor.
Thanks, Arno