Hi,
I'm new here and new to Neo Geo. I recently acquired my first Neo Geo MVS 1 Slot board and when i looked at the board, i saw that the battery had leaked and eaten up 3 components completely. The first one, i believe is an osciallator, the second one looks like a tantalum cap and the third component only has legs remaining.
Here is the link to the images showing the board in the original form with the battery damage: https://imgur.com/a/fYVwsTN
After trying to guess what the components are on google, I ordered parts (20pf, 22pf and crystal) from digikey, hoping that the board will atleast show the cross hatch pattern.
I took the battery out along with the register that charges it, to replace with a CR 2032 battery holder and socketed the 8X2 chips as there seems to be considerable battery leak damage to the legs.
I traced a bunch of traces that looked like were worn out, but i do get connectivity on all but two of them, which i fixed.
Here is the link to the images showing a bunch of components removed around the battery to investigate the damage https://imgur.com/a/cGcZa1O
I resoldered everything back and got the crystal and couple of caps back. However, when it boots, it watchdogs between blue and white screen. Occasionally, giving a corrupt cross hatch. I put the unibios 4 and this is what it shows up as https://imgur.com/a/47lCh0Y
Any suggestions on how to proceed? Anyone here who can burn a Neo Geo diagnostic rom? Not sure if using that i will be able to read the screen or it will still be corrupt graphics.
Thanks
I'm new here and new to Neo Geo. I recently acquired my first Neo Geo MVS 1 Slot board and when i looked at the board, i saw that the battery had leaked and eaten up 3 components completely. The first one, i believe is an osciallator, the second one looks like a tantalum cap and the third component only has legs remaining.
Here is the link to the images showing the board in the original form with the battery damage: https://imgur.com/a/fYVwsTN
After trying to guess what the components are on google, I ordered parts (20pf, 22pf and crystal) from digikey, hoping that the board will atleast show the cross hatch pattern.
I took the battery out along with the register that charges it, to replace with a CR 2032 battery holder and socketed the 8X2 chips as there seems to be considerable battery leak damage to the legs.
I traced a bunch of traces that looked like were worn out, but i do get connectivity on all but two of them, which i fixed.
Here is the link to the images showing a bunch of components removed around the battery to investigate the damage https://imgur.com/a/cGcZa1O
I resoldered everything back and got the crystal and couple of caps back. However, when it boots, it watchdogs between blue and white screen. Occasionally, giving a corrupt cross hatch. I put the unibios 4 and this is what it shows up as https://imgur.com/a/47lCh0Y
Any suggestions on how to proceed? Anyone here who can burn a Neo Geo diagnostic rom? Not sure if using that i will be able to read the screen or it will still be corrupt graphics.
Thanks