| Arcade Collecting > Restorations & repair |
| MV2F unknown soldering blob/bridge/thing...? |
| << < (2/3) > >> |
| nitrogen_widget:
those chips are responsible for switching between cartridges on dual slot neo geo boards according to the wiki. It also says those chips fail and have extra pins and those are used via jumper. it could be a repair. https://wiki.neogeodev.org/index.php?title=NEO-257#Pinouts |
| Gilrock:
Interesting. I browsed the pinouts from that link and those pins look like they multiplex data lines from the 2 cartridges so I cannot see a reason to tie those lines together. It looks like the solder crosses pins 12 thru 15 and those should all be independent. If its really just a couple bits for the sprite data you might not even notice that its messing up the colors. |
| nitrogen_widget:
--- Quote from: Gilrock on April 28, 2021, 02:37:15 pm ---Interesting. I browsed the pinouts from that link and those pins look like they multiplex data lines from the 2 cartridges so I cannot see a reason to tie those lines together. It looks like the solder crosses pins 12 thru 15 and those should all be independent. If its really just a couple bits for the sprite data you might not even notice that its messing up the colors. --- End quote --- yeah, according to what it said you wouldn't involve those however i really don't know. what I do know is if it ain't broke don't fix it. would hate to him back here with post about graphics issues after cleaning the solder off. |
| nexusmtz:
--- Quote from: Gilrock on April 28, 2021, 10:40:58 am ---If I told you to bridge all 4 of those pins and connect to that via... --- End quote --- I'd agree, if that were a via and not the pin 15 dot. |
| Gilrock:
--- Quote from: nexusmtz on April 29, 2021, 02:21:15 am --- --- Quote from: Gilrock on April 28, 2021, 10:40:58 am ---If I told you to bridge all 4 of those pins and connect to that via... --- End quote --- I'd agree, if that were a via and not the pin 15 dot. --- End quote --- Yep I noticed that was probably a pin marker when nitrogen provided the link. I'd say its safe to remove it. |
| Navigation |
| Message Index |
| Next page |
| Previous page |