Neo Geo AES/NGH graphic distortion/problems

[RGBcrazy]

Hello all,

I have the following problem on my japanese neo geo cart home system. The graphics in some games show distortion. Not all games, but a few (mostly the action games like metal slug). There are these tiny horizontal white flickering lines at the top of the screen and when there are explosions on screen sometimes they are missing big gaps.

I have cleaned the carts with 96% alcohol, but still the graphics are garbled...the problems always are at the exact same spots in the game. Is it the cart or the console?

Thanks for any help!

[Hojo_Norem]

I get the same too sometimes.  I think its just various limitations in the Neo's hardware showing up.

[l_oliveira]

I dunno but it feels like bit errors from reading the graphics roms.  It could be that the cartridge connector contacts come loose with the years of use and it is causing higher impedance on the electrical contact. Try to clean the pins with a connector cleanning fluid and see if it helps.