Third Update..
I soldered two wires to the left over tabs on the old battery(it’s not leaking) and wrapped it in a taped housing....I spliced it]s wires in to the wires I now have coming off the board..placed the battery,secured off to the side.
Turned on the cab..Ran it for 20 minutes..Set my Soft dip setting and also swapping the cart line up again..
Slot 1 Shock Troopers
Slot 2 Neo Turf Masters
Slot 3 Strikers 1945
Slot 4 King Of Fighters 02
played the games making sure everything is working ok.
Checked everything I could in hardward test ,everything seems ok...
Turn off the cab...turn it back on ,soft dip settings are saved...
Did that a few times..let the cab run for an hour,...turn it back on..soft dip settings are saving..turned it off for the night.turned it on at noon today soft dip settings are saving..
Ok,that’s good news,now I can progress to a new battery set up ..and am safe that I my board will no longer suffer bad battery leakage damage..
(thank you )thank you Steve too..
PROBLEM..
If I turn the cab on with a original Neo Geo Memory Card in the Memory Card reader on the front of the cab now the cab goes instantly into this screen and won’t come out of it unless I turn the cab off.
If I insert a original Neo Geo Memory Card after playing a game the game will ask if I want to save the data,I select Yes,then on screen it says this card can’t be formatted...Save NG...Your card is still inserted..
..I tried two mem cards both these cards used in this machine before I pulled the boards battery..
So I cleared=formated both cards in my other cab,that has an old UNI BIOS chip..(4 slot)..I tested the cards and they save in this cab..
They still cause the Big Red 4 Slot Board with bad trace to go into Memory Card ERROR...
Right now I don’t know if the MVS boards bad trace is causing this memory card problem ,BUT it's he only answer..my next step is to get out my stack of MVS manuals and read a schematic to see what are this trace is for..
FORTH UPDATE:
If I leave the cab off for two days or more the cab gets funny..Strikers 1945 in slot 3 will have a HISS when starting the demo...If I put t in slot 4 it's ok..If it's not that,.The third and forth games in slot 3-4 won't come up,or just the forth game in the 4th slot..
If I remove the games and switch slots they show up..I removed all games and cleaned the contacts..I still have the old battery wired in..waiting on new battery in the mail..the old battery is dying in less then 2-3 days so I stopped making changes to the soft dips..I don't know why the board keeps acting up ..If i turn the cab on daily it's fine..Does the battery make so much of a difference..Should I just remove the old battery altogether?
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FIFTH UPDATE
I got the battery off ebay,AN AMAZING DEAL for $10.00 shipped..
wired it up,instead of having to modify the battery for the 4 slot board as it's instructions say,,
Instructions say to run the cab for 24 hours atleast once a month to keep the battery charged..
I can do that so I've run the cab for a few hours in the last two days.the soft dip settng are holding..
My question is..Since I have the battery off to the side in the cab with around 7 inches of thin wire(pos neg) soldered onto the board battery leads..will this effect it's charging or how it interacts with the board..