Trying to troubleshoot an issue with my NGG. I'm not nearly as adept at this stuff as most of you, but I feel I'm stuck and never had something like this on a machine before.

It started the other day when the machine stopped midgame and gave a "G10 Error". Since the game had recently been moved, I wondered if there was something knocked lose (security chip). So I looked around and then noticed the machine wouldn't even give me the G10 Error. It would just give the loud beep at startup but nothing would run (DMD blank, no lights, etc).

At this point I pulled out all the connectors and put them back in making sure they were in securely. When I pulled the power one on the MPU (J210) and put it back in, the machine ran for a day or two. Only it died again midgame tonight. It seems like when I mess with that connection, I can get it to power up for a little bit only to have it die shortly after.

This is a little out of my comfort zone and I'm hoping I could get some guidance as to where to go from here. It doesn't look like there is battery corrosion on it, but I might not be looking for the right thing. Is there anything simple this could be that I'm missing? Or does anyone have any idea what could cause it.

Any help is greatly appreciated.

And when booting up, the LEDs (I'm sorry I can't remember what they were labeled) in the bottom left of the MPU have the top and bottom one lit and the middle one doing nothing.

I'm really not. I probably should learn to be though.

It doesn't, it gives off the one initial beep and that's it.

Well it gave the G10 error for a short time and then I never saw it again. Now that I can't get anything to go on, I'm wondering if that G10 error was just the CPU having issues. Not too familiar with the security chip, but I've never heard of it completely disabling everything and not allowing anything to power up. I figured I'd still be at least getting the G10 error on the DMD.

I did go through a bunch of info online on diagnosing things. LED201 and LED202 are on all the time and LED203 is not doing anything. I'm not seeing anything about that. See info if LED203 blinks 1,2, or 3 times, but nothing about it not doing anything. Or LED201 (blanking) not turning off after a couple seconds.

One other thing I did notice is that there is some corrosion on the bottom of the old battery holder. So at one time it likely leaked. Can't see any damage on the board itself but I might not be looking right.

Sorry, I'm just not a fan of RFM. AFM on the other hand...

Thanks a lot for your help. I'm going to try those things you mentioned and still look around, but I have someone coming out to look at it this week. It's just a bit out of my comfort zone and hopefully I can learn something in the process.