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I successfully started my Namco System 2, but I encountered a RAM error 40cc16 on the screen. I'm not sure which RAM chip is causing the problem. Could anyone please help me identify and resolve this issue? Any assistance would be greatly appreciated. Thanks!

A few days ago, I received a Namco System 2 mainboard from Yahoo Japan. It is a display board specifically for Final Lap (C107) and does not include the OBJ ROM Board. Since many EPROMs have not yet arrived, I have only installed a few. Currently, during testing, there is no video output, but...

thankyou! By the way, mine also has the finallap3 board. When I received the NS2, it didn't come with an OBJ board. I've been searching for the circuit diagram of the OBJ board, but I couldn't find it anywhere on the internet. I still don't know the purpose of a black wire. I only know that it...

I want to ask a question. Maybe it's a stupid question. Can namco system 2 display video without installing a video board?