I need help with my MV 1F Jamma board

Hello to all the nice all-knowing guys...
i got a MVS 1F 1 slot board that is giving me lots of headache
It works fine with the bomberman catridge... 100% working... but when i insert "Real Bout Final" catridge.. it comes out with the image scrambled.... you can see the game and hear the sound but the image is all messed up and the catridge itself is fine... it works in all my other boards i got like 15 boards...
and also when i insert any other game like king of fighters 2000 it just does nothing... black screen all the way...
I did turned all the switches on and it did "WORK RAM TEST" and i left it like that for 5 minutes to clear the rams.. but still the same problem... the board itself and the cart are all cleaned up... in the way hardmvs.com explained....
SO i dont dont what could it be.. that the board works only with bomberman.. comes out scrambled weird image with real bout and doesnt work at all.. (black screen) with KOF2002 and KOF2000
help please...

Try a few things..

Clean the connectors on the motherboard with a cardboard nail file..The lighter side and don't press real hard..

Open the carts and clean the connectors with (dry) Green Scotch Brite or very lightly grained sand paper..

Try the game boards with them out of the casings..Take the game boards out of the case and put them in the one slot the way they are in the case....they may be warping..when the screws are tightened down..

Loosen the screws on the casings and see if you get any change.
Your game boards may be warping by the case pressing on them..and not making a good contact when inserted into the MVS 1F 1 slot board..

How old is the MVS 1F 1 slot board?
A few of the prongs may be bent back to far..

thanks chris but still got the problem

thanks chris for the reply but i still go the same problem after going to alllll the cleaning...
the strange thing is the catridges are alright coz they work fine in all other mvs boards......

and the other strange thing is this machine works fine with Bomberman... no image scramble at all... but still cant get kof2002 or kof2000 to work on it and still lots of image scramble and weird image with Real Bout

Could it be a Chip or something?.. and why is it that with bomberman it works and it doesnt work with other boards or the image scrambles?

please help someone?

Hello Okar get a rubber and clean the contacts and then blow off the acsess rubber and then put it in your neo geo maybe cause they are new titles well nearly new and some of the new carts dont work with 1 slots without modifying them like Rage of the dragons and with the Fatal fury maybe cauzse it is old



Neo*geo