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NeoField

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Sep 25, 2017
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Orlando, FL
Hi all, my Neo Geo AES is having some strange Graphics Glitches with every game.The games eventually work but I️ usually have to reset the system a dozen times before they work properly. I have cleaned each cartridge and the console using Isopropyl 90 and a toothbrush, also a credit card with cloth for the insert. Any advice would be greatly appreciated.

 
If you let it boot that way, what do the "score and writings" look like? I mean is it affecting only the sprites or all of the graphics?

I dont have an AES but if that was an MVS I would say (apart from bad contacts) it is related with C-ROM data bus and NEO-B1 or NEO-ZMC2 chip related. Since this is an AES, ZMC2 is obviously out of consideration but if your AES has a B1 chip that might be going bad...

It might also be related with over/under voltage? may be... Have you checked your power supply voltages?
 
Hi there, thank you for the reply,

I have tried two different power supplies with the same problem, BUT both are not official SNK power supplies... might be the problem.
 
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